Sewage treatment project investment estimation method and system

Abstract

The invention discloses a sewage treatment project investment estimation method and system. The method comprises the following steps: formulating a sewage treatment process flow; detecting a water treatment flow pipeline; sewage treatment informatization monitoring management; performing influence judgment according to the monitoring data information; the main body of the water treatment equipment is in full-automatic intelligent operation, unattended operation and real-time interaction with a management informatization platform, real-time online monitoring can be realized, the process can be automatically adjusted, stable and standard effluent is ensured, and monitoring, remote control, fault diagnosis and instant message pushing of the working state of the equipment, effluent SS and turbidity are remotely realized; the system has the same functions as a matched mobile phone APP, embodies the advancement of a sewage treatment process technology, adopts mature new technologies and new materials, and is high in system integration level, high in automation level and self-diagnosis capability, stable in effluent quality, high in operation efficiency of the treatment process and capable of reducing the influence on the environment to the greatest extent.

Description

Technical Field

[0001] The present invention relates to the technical field of project research and analysis, and in particular to a method and system for estimating investment in a sewage treatment project. Background Art

[0002] Wastewater treatment projects refer to the process of treating various types of wastewater through a series of technologies and methods to meet the discharge standards or recycling standards. Such projects are of great significance for protecting the environment and improving water quality. The main treatment technologies include physical treatment, chemical treatment, biological treatment, membrane technology and thermal treatment technology. The investment estimation of wastewater treatment projects is an economic analysis process to determine the total amount of funds required for the project. When estimating the project investment, it is necessary to base it on the scale of the project, treatment technology, geographical conditions and local policies and regulations;

[0003] Currently, more efficient treatment technologies or equipment have not been used in the water treatment process, which has affected the treatment efficiency of sewage treatment during the water treatment process and increased operating costs. This has led to large differences in the investment estimation process of the entire sewage treatment project, resulting in result analysis when estimating project investment. Summary of the invention

[0004] The present invention provides a method and system for estimating investment in sewage treatment projects, which can effectively solve the problem proposed in the above background technology that more efficient treatment technology or equipment is not adopted in the water treatment process, resulting in the water treatment process, affecting the treatment efficiency of sewage treatment, and increasing operating costs, resulting in large differences in the investment estimation process of the entire sewage treatment project, which makes the problem of result analysis appear when estimating project investment.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for estimating investment in a sewage treatment project, specifically comprising the following steps:

[0006] Step 1: Develop a sewage treatment process;

[0007] Step 2: Water treatment process pipeline inspection;

[0008] Step 3: Informatization monitoring and management of sewage treatment;

[0009] Step 4: Make an impact assessment based on monitoring data information;

[0010] Step 5: Evaluate and analyze the processing items;

[0011] In the step 4, when the sewage is treated to meet the discharge standards, the total consumption of the sewage treatment is set to C, the equipment consumption is set to E, the agent consumption is set to M, and the sewage treatment volume is set to Q;

[0012] The sewage treatment volume Q = qt, q represents the treatment volume per unit time, and t represents the duration;

[0013] First, analyze the equipment consumption E, which includes equipment damage, service life, maintenance cost and repair cost;

[0014] It can be expressed by the following formula:

[0015] E=k1Q α t

[0016] Among them, k1 is the equipment consumption coefficient, which is the coefficient that increases with time t;

[0017] α is an exponent related to the throughput Q:

[0018] k1=a+bt

[0019] Among them, a and b are constant coefficients;

[0020] The reagent consumption M is usually related to the treatment volume and water quality, and can be expressed as:

[0021] M=k2Q β γ

[0022] Among them, k2 is the agent consumption coefficient;

[0023] β is an index related to the processing volume Q;

[0024] γ represents the complexity of water quality. A larger value indicates worse water quality and higher reagent consumption.

[0025] Considering the impact of sewage quality on reagent consumption, the water quality impact factor γ is included in the formula. The water quality impact factor γ is calculated based on water quality indicators (such as COD, BOD);

[0026] Then determine the calculation formula of total consumption C: the total consumption C of sewage treatment is a comprehensive reflection of equipment consumption E, agent consumption M and time consumption t, which can be expressed as:

[0027] C=E+M+k3t

[0028] Among them, k3 is the time consumption coefficient, which represents the fixed consumption per unit time;

[0029] k3=k 31 +k 32 lnt

[0030] Among them, k 31 and k 32 All are constant coefficients;

[0031] After sorting, the calculation formula for the total consumption C is:

[0032] C=(a+bt)Q α t+k2 β γ+(k 31 +k 32 lnt)t.

[0033] According to the above technical solution, in the step 1, the main equipment involved in the specific sewage treatment process includes underground integrated sewage treatment equipment, equipment room, duty room, regulating tank, sludge tank and box transformer;

[0034] Sewage enters the sewage treatment station through the sewage pipeline, and then passes through the coarse screen and fine screen in the screen channel and enters the regulating tank. The regulating tank also serves as the primary sedimentation tank. Large mud and sand sink into the sludge hopper and are discharged to the sludge tank by the sludge pump. The sewage in the regulating tank is lifted by the automatic mixing submersible sewage pump and enters the integrated treatment equipment for treatment;

[0035] The integrated sewage treatment equipment is equipped with an anaerobic tank, an anoxic tank, an aerobic MBBR tank, an inclined plate sedimentation tank, a clear water tank and an equipment room. The main process is A2O+MBBR biofilm technology. The equipment needs to create anaerobic, anoxic and aerobic reaction conditions in sequence. The hydraulic retention time of the integrated sewage treatment equipment is greater than 12 hours.

[0036] The sludge generated in the process is discharged into the sludge pool. According to the requirements of the sewage treatment plant, the sludge is regularly transported to the county sewage treatment station by sludge tankers for unified treatment. The coarse screen is a plug-in screen with a bar gap of 10mm. The screen residue is removed manually. The fine screen uses a rotary screen cleaner, which is a mechanical screen with a bar gap of 5mm. The coarse and fine screen residues are transported by a matching screen residue trolley.

[0037] The treatment station will build new equipment rooms, equalization tanks and sludge tanks. The biological treatment system is a complete set of integrated treatment equipment. The specific process parameters of the equalization tank, anaerobic tank, anoxic tank and aerobic tank are as follows: equalization tank: T=8.0h, anaerobic tank: T=1.0h, anoxic tank: T=5.0h, aerobic tank: T=7.0h.

[0038] According to the above technical scheme, in the sewage treatment process, the outdoor pipelines involved are UPVC pipes, the pipeline burial depth is 1.0m, hot-melt connection is adopted, the pipeline is laid on undisturbed original soil or tightly compacted backfill soil, the original soil of the pipeline foundation is compacted, and a 150mm medium-coarse sand cushion is provided, and concrete piers shall be provided at the bends, tees and valves of the outdoor pressure pipeline, and brackets shall be provided for overhead pipelines;

[0039] The external corrosion protection of buried steel pipes adopts reinforced coal tar epoxy. The specific methods are as follows: one coat of primer, four coats of coal tar epoxy, three layers of glass cloth wrapped between the coatings, and two coats of epoxy resin paint for internal corrosion protection. Steel pipes and fittings should be treated with rust prevention before corrosion protection, and their quality standards should reach Sa2.5 level.

[0040] According to the above technical scheme, in the sewage treatment process, the freezing line of the outdoor pipeline involved is 0.82m, and the pipeline above the freezing line must take insulation measures. The insulation material is hard polyurethane foam with a thickness of 40mm. The drainage pipes between the outdoor drainage inspection wells are reinforced concrete bell-and-spigot pipes with rubber ring joints. The pipeline foundation is 120℃20 concrete foundation. The foundation treatment adopts 30cm dry-inserted stone on the base, 20cm graded crushed stone for leveling, and the pipeline is backfilled with plain soil.

[0041] The foundation treatment of the buried integrated equipment is to lay 70cm dry-inserted stone on the base, 30cm graded crushed stone for leveling, and medium-coarse sand is used to backfill from the bottom of the integrated equipment trough to the top of the equipment, and the rest is backfilled with plain soil;

[0042] The valve well shall be a rectangular reinforced concrete valve well and the well cover shall be a light cast iron well cover. The upper surface of the well cover shall be 150mm higher than the green belt.

[0043] According to the above technical scheme, the underground integrated sewage treatment equipment is installed through an underground installation method, and specifically includes a water treatment equipment body, an electronic control device, a water quality monitor, a blower, a submersible sewage pump, a UV sterilizer, a mixed liquid reflux device, an aeration device, a dosing device, and an operation information platform. The single unit has a processing capacity of 150t / d. The equipment is made of high-strength anti-corrosion special steel plates, and the structure meets the load-bearing requirements. The equipment box is required to be Q235 carbon steel, the inner surface primer is epoxy paint, and the outer surface is epoxy coal tar paint.

[0044] According to the above technical solution, in step 2, the pipeline detection specifically includes pipeline water pressure and pipeline water and air sealing detection, and also includes pipeline flushing detection;

[0045] Pipeline water pressure testing refers to the pressure testing of the pipeline after the pipe foundation and pipeline installation inspection are qualified, and the backfill soil height on both sides of the pipeline and above the pipe top is not less than 0.5m. The test pressure of PE water supply pipe = 1.5P, and not less than 0.8MPa, the test pressure of steel pipe = P+0.5, and not less than 0.9Mpa. After the pipeline pressure test is qualified, the rest of the trench should be backfilled in time;

[0046] Pipeline water and air sealing test refers to the water and air sealing test of non-pressure pipelines. Before backfilling, the non-pressure pipelines shall be tested for water and air sealing. Backfilling can only be carried out after passing the test. When backfilling, the soil quality shall be carried out in accordance with the regulations;

[0047] Pipeline flushing inspection refers to the flushing of drainage pipes, and the pipes are qualified if they are unobstructed. When blockage occurs during the operation of the sedimentation tank, a high-pressure water gun with a recycled water pump is used for flushing to ensure that the pipes are in an unobstructed state during the water treatment operation.

[0048] According to the above technical solution, the step three, information monitoring and management refers to real-time online monitoring of the effluent water quality SS, turbidity, and temperature of the integrated sewage treatment equipment, and the real-time online monitoring of COD and turbidity is achieved through water quality sensors. The water quality sensor can detect COD in real-time online with a range of 20-500 mg / L, an accuracy of ±2.5 mg / L or ±3%, and a turbidity range of 0.01-400 NTU, with an accuracy of ±10%;

[0049] The integrated sewage treatment equipment operates fully automatically and intelligently, without human supervision, and interacts with the management information platform in real time. The management information platform can remotely monitor the equipment's working status, effluent SS, and turbidity, remotely control, diagnose faults, and push instant messages. The supporting mobile phone APP has the same functions.

[0050] At the same time, the management information platform, as an information management platform for sewage treatment projects, collects, analyzes and supports decision-making of the treatment data involved in the water treatment process, so as to achieve real-time monitoring and management of the operation of sewage treatment projects. When collecting data involved in sewage treatment projects, it includes the scale of the overall treatment project, the design of sewage treatment equipment and the amount of water treated, as well as the inflow and outflow information in units of days, weeks and months, the effluent water quality index, energy consumption, the use of chemicals and the amount of sludge generated;

[0051] The collected data is analyzed and processed through the information management platform to obtain data information of the overall sewage treatment project during the sewage treatment process.

[0052] According to the above technical solution, in step 4, the impact judgment is made based on the monitoring data information, and the operational efficiency and environmental impact of the sewage treatment project are judged based on the data information reflected in the sewage treatment process of the sewage treatment project;

[0053] Conduct in-depth analysis of the treatment processes, treatment equipment and water treatment technologies involved in sewage treatment projects based on sewage treatment data information to overcome factors that affect operational efficiency in each treatment project;

[0054] Treatment process refers to selecting and adjusting the appropriate sewage treatment process based on the actual situation, and selecting the most suitable treatment method in combination with the actual environmental conditions and characteristics of water resources in the treatment area, so as to overcome the impact of treatment process on operational efficiency. Treatment equipment refers to selecting efficient and durable sewage treatment equipment, regularly performing equipment maintenance, ensuring stable operation of the equipment, and further improving the operational efficiency of sewage treatment projects by increasing the degree of automation of the equipment and reducing manpower input. Water treatment technology refers to adopting new water treatment technology and selecting corresponding new water treatment materials based on the new water treatment technology, so as to improve water treatment efficiency, reduce operating costs, and overcome the impact of water treatment technology on operational efficiency.

[0055] In the process of environmental impact assessment, pollution detection is carried out on the treated water after discharge to reduce the organic, nitrogen and phosphorus pollutants flowing into the water body, improve water quality and promote the health of aquatic ecosystems. At the same time, it is avoided that incompletely treated sewage containing high concentrations of pathogenic microorganisms and toxic chemicals is discharged into the water body, which will pose a threat to the health of the water body.

[0056] According to the above technical solution, the step 5, evaluating and analyzing the treatment project is to obtain the data information of the overall sewage treatment project in the sewage treatment process to conduct an overall evaluation to understand the achievement of the expected goals of the sewage treatment project, including data processing, setting evaluation indicators and analysis and improvement;

[0057] Data processing refers to processing the acquired data information so that the data information of various types of sewage treatment processes can be classified and stored according to the acquired log information and type information;

[0058] Setting evaluation indicators means evaluating the sewage treatment project in combination with data information by selecting appropriate indicators, specifically evaluating the treatment efficiency and energy efficiency of the sewage treatment project. Treatment efficiency evaluation is to compare the difference in pollutant concentrations between influent and effluent to show the effect of sewage treatment, while energy efficiency refers to the comparison between the operating energy consumption of the overall sewage treatment equipment and the treatment efficiency, measured by the energy consumption per unit of treated water volume;

[0059] Analysis and improvement means to find the causes of inefficiency through statistical analysis of evaluation results, and adopt more efficient processing technology or equipment based on the causes.

[0060] According to the above technical solution, a sewage treatment project investment estimation system is used for an estimation system of a sewage treatment project investment estimation method, specifically including a data layer, an application layer and an interface layer;

[0061] The data layer completes the collection and storage of various water treatment data, such as basic data, operation data, and maintenance data of the water treatment process;

[0062] The application layer is to formulate and implement the treatment plan of the water treatment project. Based on existing experience, at the beginning of the project, the scale of the sewage treatment project, the required technical solutions, location and other basic conditions can be preliminarily determined through technical feasibility analysis and market research, and scientific and reasonable design and planning can be formulated for each specific link of the sewage treatment project;

[0063] After the design and planning of the sewage treatment project is completed, the control command is automatically sent to the head controller, which then operates the treatment equipment involved in the sewage treatment project. It can also adjust and optimize the treatment plan in a timely manner according to the actual situation in the sewage treatment process, and remind the back-end management personnel;

[0064] The interface layer is the top layer of the system. The entire interface layer is scientifically designed, beautiful, easy to use and maintain, provides rich data analysis, and displays the treatment status of sewage treatment projects in real time. It can automatically generate various treatment data charts based on specific sewage treatment data information.

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] 1. In the sewage treatment process, the main body of the water treatment equipment of the present invention operates fully automatically and intelligently, without supervision, interacting with the management information platform in real time, and capable of real-time online monitoring, and can automatically adjust the process to ensure that the effluent is stable and meets the standards, remotely monitor the working status of the equipment, effluent SS, turbidity, remote control, fault diagnosis, instant message push, and a matching mobile phone APP with the same functions. At the same time, it embodies the advanced sewage treatment process technology, the use of mature new technologies and new materials, high system integration, strong automation level and self-diagnosis ability, stable effluent water quality, high operating efficiency of the treatment process, and can minimize the impact on the environment.

[0067] 2. By monitoring and managing sewage treatment information, the operational efficiency and environmental impact of sewage treatment projects can be judged through monitoring data information, and by conducting in-depth analysis of the treatment processes, treatment equipment and water treatment technologies involved in sewage treatment projects, sewage treatment data can be collected, and the consumption of sewage treatment can be calculated based on the data. Through the data, it is convenient to select the most suitable treatment method based on the analysis results, thereby overcoming the impact of treatment processes on operational efficiency. At the same time, by increasing the degree of automation of equipment and reducing manpower input, the operational efficiency of sewage treatment projects can be further improved. New water treatment technologies can be used to improve water treatment efficiency and reduce operating costs, thereby achieving the purpose of overcoming factors affecting operational efficiency in various treatment projects.

[0068] 3. Through the evaluation and analysis of the treatment projects, it is convenient to timely and thoroughly understand the achievement of the expected goals of the sewage treatment projects, and the data information obtained through evaluation and analysis can be classified and stored. At the same time, by evaluating the treatment efficiency and energy efficiency of the sewage treatment projects, it is convenient to compare the differences in pollutant concentrations between the inlet and outlet water, understand the effect of sewage treatment, and intuitively respond to the operating energy consumption and treatment efficiency of the overall sewage treatment equipment. Combined with the analysis and evaluation results, statistical analysis is carried out to find the reasons for inefficiency, and more efficient treatment technology or equipment is adopted according to the reasons. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0070] In the attached picture:

[0071] Figure 1 is a flow chart of investment estimation of the present invention;

[0072] Figure 2 It is a schematic diagram of the sewage treatment process of the present invention. DETAILED DESCRIPTION

[0073] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0074] Example: Figure 1-2 As shown, the present invention provides a technical solution, a method for estimating investment in a sewage treatment project, which specifically includes the following steps:

[0075] Step 1: Develop a sewage treatment process;

[0076] Step 2: Water treatment process pipeline inspection;

[0077] Step 3: Informatization monitoring and management of sewage treatment;

[0078] Step 4: Make an impact assessment based on monitoring data information;

[0079] Step five: Evaluate and analyze the processing project.

[0080] Based on the above technical solution, in step 1, the main equipment involved in the specific sewage treatment process mainly includes underground integrated sewage treatment equipment, equipment room, duty room, regulating tank, sludge tank and box transformer;

[0081] Sewage enters the sewage treatment station through the sewage pipeline, and then passes through the coarse screen and fine screen in the screen channel and enters the regulating tank. The regulating tank also serves as the primary sedimentation tank. Large mud and sand sink into the sludge hopper and are discharged to the sludge tank by the sludge pump. The sewage in the regulating tank is lifted by the automatic mixing submersible sewage pump and enters the integrated treatment equipment for treatment;

[0082] The integrated sewage treatment equipment is equipped with an anaerobic tank, an anoxic tank, an aerobic MBBR tank, an inclined plate sedimentation tank, a clear water tank and an equipment room. The main process is A2O+MBBR biofilm technology. The equipment needs to create anaerobic, anoxic and aerobic reaction conditions in sequence. The hydraulic retention time of the integrated sewage treatment equipment is greater than 12 hours.

[0083] The sludge generated in the process is discharged into the sludge pool. According to the requirements of the sewage treatment plant, the sludge is regularly transported to the county sewage treatment station by sludge tankers for unified treatment. The coarse screen is a plug-in screen with a bar gap of 10mm. The screen residue is removed manually. The fine screen uses a rotary screen cleaner, which is a mechanical screen with a bar gap of 5mm. The coarse and fine screen residues are transported by a matching screen residue trolley.

[0084] The treatment station will build new equipment rooms, equalization tanks and sludge tanks. The biological treatment system is a complete set of integrated treatment equipment. The specific process parameters of the equalization tank, anaerobic tank, anoxic tank and aerobic tank are as follows: equalization tank: T=8.0h, anaerobic tank: T=1.0h, anoxic tank: T=5.0h, aerobic tank: T=7.0h.

[0085] Based on the above technical solution, in the sewage treatment process, the outdoor pipelines involved use UPVC pipes, the pipeline burial depth is 1.0m, hot-melt connection is adopted, and the pipelines are laid on undisturbed original soil or tightly compacted backfill soil. After the original soil of the pipeline foundation is compacted, a 150mm medium-coarse sand cushion layer is applied. Concrete piers should be provided at the bends, tees and valves of the outdoor pressure pipelines, and brackets are required for overhead pipelines.

[0086] The external corrosion protection of buried steel pipes adopts reinforced coal tar epoxy. The specific methods are as follows: one coat of primer, four coats of coal tar epoxy, three layers of glass cloth wrapped between the coatings, and two coats of epoxy resin paint for internal corrosion protection. Steel pipes and fittings should be treated with rust prevention before corrosion protection, and their quality standards should reach Sa2.5 level.

[0087] Based on the above technical solution, in the sewage treatment process, the freezing line of the outdoor pipeline involved is 0.82m. Insulation measures must be taken for the pipelines above the freezing line. The insulation material is hard polyurethane foam with a thickness of 40mm. The drainage pipes between the outdoor drainage inspection wells are reinforced concrete bell-and-spigot pipes with rubber ring joints. The pipeline foundation is 120℃20 concrete foundation. The foundation treatment adopts 30cm dry-inserted stone on the base, 20cm graded crushed stone for leveling, and the pipeline is backfilled with plain soil.

[0088] The foundation treatment of the buried integrated equipment is to lay 70cm dry-inserted stone on the base, 30cm graded crushed stone for leveling, and medium-coarse sand is used to backfill from the bottom of the integrated equipment trough to the top of the equipment, and the rest is backfilled with plain soil;

[0089] The valve well shall be a rectangular reinforced concrete valve well and the well cover shall be a light cast iron well cover. The upper surface of the well cover shall be 150mm higher than the green belt.

[0090] Based on the above technical solution, the underground integrated sewage treatment equipment is installed through underground installation, which specifically includes the water treatment equipment body, electronic control device, water quality monitor, blower, submersible sewage pump, UV disinfector, mixed liquid reflux device, aeration device, dosing device, and operation information platform. The single unit has a processing capacity of 150t / d. The equipment is made of high-strength anti-corrosion special steel plate, and the structure meets the load-bearing requirements. The equipment box is required to be Q235 carbon steel, the inner surface primer is epoxy paint, and the outer surface is epoxy coal tar paint.

[0091] Based on the above technical solution, in step 2, pipeline detection specifically includes pipeline water pressure and pipeline water and air sealing detection, and also includes pipeline flushing detection;

[0092] Pipeline water pressure testing refers to the pressure testing of the pipeline after the pipe foundation and pipeline installation inspection are qualified, and the backfill soil height on both sides of the pipeline and above the pipe top is not less than 0.5m. The test pressure of PE water supply pipe = 1.5P, and not less than 0.8MPa, the test pressure of steel pipe = P+0.5, and not less than 0.9Mpa. After the pipeline pressure test is qualified, the rest of the trench should be backfilled in time;

[0093] Pipeline water and air sealing test refers to the water and air sealing test of non-pressure pipelines. Before backfilling, the non-pressure pipelines shall be tested for water and air sealing. Backfilling can only be carried out after passing the test. When backfilling, the soil quality shall be carried out in accordance with the regulations;

[0094] Pipeline flushing inspection refers to the flushing of drainage pipes, and the pipes are qualified if they are unobstructed. When blockage occurs during the operation of the sedimentation tank, a high-pressure water gun with a recycled water pump is used for flushing to ensure that the pipes are in an unobstructed state during the water treatment operation.

[0095] Based on the above technical solution, step three, information monitoring management refers to the real-time online monitoring of the effluent water quality SS, turbidity and temperature of the integrated sewage treatment equipment, mainly through the water quality sensor to achieve real-time online monitoring of COD and turbidity. The water quality sensor can detect COD in real-time online with a range of 20-500mg / L, an accuracy of ±2.5mg / L or ±3%, and a turbidity range of 0.01-400NTU, with an accuracy of ±10%;

[0096] The integrated sewage treatment equipment operates fully automatically and intelligently, without human supervision, and interacts with the management information platform in real time. The management information platform can remotely monitor the equipment's working status, effluent SS, and turbidity, remotely control, diagnose faults, and push instant messages. The supporting mobile phone APP has the same functions.

[0097] At the same time, the management information platform, as an information management platform for sewage treatment projects, collects, analyzes and supports decision-making of the treatment data involved in the water treatment process, so as to achieve real-time monitoring and management of the operation of sewage treatment projects. When collecting data involved in sewage treatment projects, it includes the scale of the overall treatment project, the design of sewage treatment equipment and the amount of water treated, as well as the inflow and outflow information in units of days, weeks and months, the effluent water quality index, energy consumption, the use of chemicals and the amount of sludge generated;

[0098] The collected data is analyzed and processed through the information management platform to obtain data information of the overall sewage treatment project during the sewage treatment process.

[0099] Based on the above technical solution, step 4 is to make an impact judgment based on the monitoring data information, mainly based on the data information reflected by the sewage treatment project in the sewage treatment process to judge the operating efficiency and environmental impact of the sewage treatment project;

[0100] Conduct in-depth analysis of the treatment processes, treatment equipment and water treatment technologies involved in sewage treatment projects based on sewage treatment data information to overcome factors that affect operational efficiency in each treatment project;

[0101] Treatment process mainly refers to selecting and adjusting appropriate sewage treatment process according to actual conditions, and selecting the most suitable treatment method in combination with the actual environmental conditions and characteristics of water resources in the treatment area, so as to overcome the impact of treatment process on operational efficiency. Treatment equipment refers to selecting efficient and durable sewage treatment equipment, regularly performing equipment maintenance, ensuring stable operation of the equipment, and further improving the operational efficiency of sewage treatment projects by increasing the automation level of the equipment and reducing manpower input. Water treatment technology refers to adopting new water treatment technology and selecting corresponding new water treatment materials based on the new water treatment technology, so as to improve water treatment efficiency, reduce operating costs, and overcome the impact of water treatment technology on operational efficiency.

[0102] In the process of environmental impact assessment, pollution detection is mainly carried out on the treated water after discharge to reduce the organic, nitrogen and phosphorus pollutants flowing into the water body, improve water quality and promote the health of aquatic ecosystems. At the same time, it is to avoid the discharge of incompletely treated sewage into the water body due to high concentrations of pathogenic microorganisms and toxic chemicals, which will pose a threat to the health of the water body.

[0103] When the sewage is treated to meet the discharge standards, the total consumption of sewage treatment is set to C, the equipment consumption is set to E, the reagent consumption is set to M, and the sewage treatment volume is set to Q;

[0104] The sewage treatment volume Q = qt, q represents the treatment volume per unit time, and t represents the duration;

[0105] First, analyze the equipment consumption E, which includes equipment damage, service life, maintenance cost and repair cost;

[0106] It can be expressed by the following formula:

[0107] E=k1Q α t

[0108] Among them, k1 is the equipment consumption coefficient, which is the coefficient that increases with time t;

[0109] α is an exponent related to the throughput Q:

[0110] k1=a+bt

[0111] Among them, a and b are constant coefficients;

[0112] The reagent consumption M is usually related to the treatment volume and water quality, and can be expressed as:

[0113] M=k2Q β γ

[0114] Among them, k2 is the agent consumption coefficient;

[0115] β is an index related to the processing volume Q;

[0116] γ represents the complexity of water quality. A larger value indicates worse water quality and higher reagent consumption.

[0117] Considering the impact of sewage quality on reagent consumption, the water quality impact factor γ is included in the formula. The water quality impact factor γ is calculated based on water quality indicators (such as COD, BOD);

[0118] Then determine the calculation formula of total consumption C: the total consumption C of sewage treatment is a comprehensive reflection of equipment consumption E, agent consumption M and time consumption t, which can be expressed as:

[0119] C=E+M+k3t

[0120] Among them, k3 is the time consumption coefficient, which represents the fixed consumption per unit time, and is calculated using the following nonlinear function:

[0121] k3=k 31 +k 32 lnt

[0122] Among them, k 31 and k 32 All are constant coefficients;

[0123] After sorting, the calculation formula for the total consumption C is:

[0124] C=(a+bt)Q α t+k2 β γ+(k 31 +k 32 lnt)t

[0125] According to the calculation of the total consumption C, the operating cost is estimated, and the point with large processing volume Q and small total consumption C is found as the single processing volume;

[0126] In order to analyze the total consumption C of sewage treatment, three sets of sewage treatment data are set for calculation and analysis according to the sewage treatment situation:

[0127] Data 1:

[0128] Obtain relevant data on equipment consumption, reagent consumption and time consumption in sewage treatment, bring them into the functions corresponding to k1, k2 and k3, calculate the constant coefficients in the functions corresponding to k1, k2 and k3, and finally determine the values ​​of k1, k2 and k3;

[0129] Equipment consumption coefficient k1: 0.005 (equipment consumption rate, indicating the impact of processing volume and time on equipment loss);

[0130] Chemical consumption coefficient k2: 0.1 (consumption of chemical per unit amount of treatment);

[0131] Time consumption coefficient k3: 20 (indicates the fixed time consumption of equipment operation);

[0132] Other values ​​are as follows:

[0133] Processing volume per unit time q: 200m 3 / h;

[0134] Processing time t: 9h;

[0135] Equipment consumption index α: 1.2 (the degree of change of equipment loss with processing volume);

[0136] Agent consumption index β: 1.1 (the degree of change of agent consumption with treatment volume);

[0137] Complexity of water quality γ: 5 (indicates the difficulty of sewage treatment);

[0138] Data 2:

[0139] Obtain relevant data on equipment consumption, reagent consumption and time consumption in sewage treatment, bring them into the functions corresponding to k1, k2 and k3, calculate the constant coefficients in the functions corresponding to k1, k2 and k3, and finally determine the values ​​of k1, k2 and k3;

[0140] Equipment consumption coefficient k1: 0.006 (equipment consumption rate, indicating the impact of processing volume and time on equipment loss);

[0141] Chemical consumption coefficient k2: 0.1 (consumption of chemical per unit amount of treatment);

[0142] Time consumption coefficient k3: 21 (indicates the fixed time consumption of equipment operation);

[0143] Other values ​​are as follows:

[0144] Processing volume per unit time q: 200m 3 / h;

[0145] Processing time t: 10h;

[0146] Equipment consumption index α: 1.2 (the degree of change of equipment loss with processing volume);

[0147] Agent consumption index β: 1.1 (the degree of change of agent consumption with treatment volume);

[0148] Complexity of water quality γ: 5 (indicates the difficulty of sewage treatment);

[0149] Data 3:

[0150] Obtain relevant data on equipment consumption, reagent consumption and time consumption in sewage treatment, bring them into the functions corresponding to k1, k2 and k3, calculate the constant coefficients in the functions corresponding to k1, k2 and k3, and finally determine the values ​​of k1, k2 and k3;

[0151] Equipment consumption coefficient k1: 0.006 (equipment consumption rate, indicating the impact of processing volume and time on equipment loss);

[0152] Chemical consumption coefficient k2: 0.1 (consumption of chemical per unit amount of treatment);

[0153] Time consumption coefficient k3: 21 (indicates the fixed time consumption of equipment operation);

[0154] Other values ​​are as follows:

[0155] Processing volume per unit time q: 190m 3 / h;

[0156] Processing time t: 10h;

[0157] Equipment consumption index α: 1.2 (the degree of change of equipment loss with processing volume);

[0158] Agent consumption index β: 1.1 (the degree of change of agent consumption with treatment volume);

[0159] Complexity of water quality γ: 6 (indicating the difficulty of sewage treatment);

[0160] According to the given data and formula, the calculation results are as follows;

[0161]

[0162] According to the calculation results of the above data, in the comparison of the results of data 1 and data 2, it can be seen that under the same unit time treatment volume q, the same water quality complexity γ and different treatment time t, different total consumption C is calculated and obtained, and the influence of different treatment time on total consumption C is obtained. The total consumption C corresponding to data 1 is less than that of data 2, and the treatment efficiency is higher;

[0163] In the comparison of the results of Data 2 and Data 3, it can be seen that under different unit time treatment volumes q, different water quality complexity γ and the same treatment time t, different total consumption C is calculated and obtained. When pursuing treatment volume, it is more efficient to choose the treatment method of Data 2 between Data 2 and Data 3. When pursuing treatment effect, for water with high water quality complexity, it is more efficient to choose the treatment method of Data 3 between Data 2 and Data 3.

[0164] By calculating the consumption of sewage treatment in advance, we can comprehensively estimate the total consumption in the sewage treatment process, so that we can directly compare the data. On the premise that the treated water quality meets the standards, we can choose a high-efficiency treatment method to treat the sewage, thereby achieving efficient sewage treatment.

[0165] Based on the above technical solution, step five, the evaluation and analysis of the treatment project is mainly to conduct an overall evaluation of the data information of the overall sewage treatment project in the sewage treatment process, to understand the achievement of the expected goals of the sewage treatment project, including data processing, setting evaluation indicators and analysis and improvement;

[0166] Data processing refers to processing the acquired data information so that the data information of various types of sewage treatment processes can be classified and stored according to the acquired log information and type information;

[0167] Setting evaluation indicators means evaluating the sewage treatment project in combination with data information by selecting appropriate indicators, specifically evaluating the treatment efficiency and energy efficiency of the sewage treatment project. Treatment efficiency evaluation is to compare the difference in pollutant concentrations between influent and effluent to show the effect of sewage treatment, while energy efficiency refers to the comparison between the operating energy consumption of the overall sewage treatment equipment and the treatment efficiency, measured by the energy consumption per unit of treated water volume;

[0168] Analysis and improvement means to find the causes of inefficiency through statistical analysis of evaluation results, and adopt more efficient processing technology or equipment based on the causes.

[0169] According to the above technical solution, a sewage treatment project investment estimation system is used for an estimation system of a sewage treatment project investment estimation method, specifically including a data layer, an application layer and an interface layer;

[0170] The data layer mainly completes the collection and storage of various water treatment data, such as basic data, operation data, and maintenance data of the water treatment process;

[0171] The application layer is mainly responsible for formulating and implementing treatment plans for water treatment projects. Based on existing experience, at the beginning of the project, the scale of the sewage treatment project, the required technical solutions, location and other basic conditions can be preliminarily determined through technical feasibility analysis and market research, and scientific and reasonable designs and plans can be formulated for each specific link of the sewage treatment project;

[0172] After the design and planning of the sewage treatment project is completed, the control command is automatically sent to the head controller, which then operates the treatment equipment involved in the sewage treatment project. It can also adjust and optimize the treatment plan in a timely manner according to the actual situation in the sewage treatment process, and remind the back-end management personnel;

[0173] The interface layer is the top layer of the system. The entire interface layer is designed to be scientific, beautiful, easy to use and maintain. It provides rich data analysis and displays the treatment status of sewage treatment projects in real time. It can automatically generate various treatment data charts based on specific sewage treatment data information.

[0174] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for estimating investment in a sewage treatment project, characterized in that: The specific steps include: Step 1: Develop a sewage treatment process; Step 2: Water treatment process pipeline inspection; Step 3: Informatization monitoring and management of sewage treatment; Step 4: Make an impact assessment based on monitoring data information; Step 5: Evaluate and analyze the processing items; In the step 4, when the sewage is treated to meet the discharge standards, the total consumption of the sewage treatment is set to C, the equipment consumption is set to E, the agent consumption is set to M, and the sewage treatment volume is set to Q; The sewage treatment volume Q = qt, q represents the treatment volume per unit time, and t represents the duration; First, analyze the equipment consumption E, which includes equipment damage, service life, maintenance cost and repair cost; It can be expressed by the following formula: E=k1Q α t Among them, k1 is the equipment consumption coefficient, which is the coefficient that increases with time t; α is an exponent related to the throughput Q: k1=a+bt Among them, a and b are constant coefficients; The reagent consumption M is usually related to the treatment volume and water quality, and can be expressed as: M=k2Q β c Among them, k2 is the agent consumption coefficient; β is an index related to the processing volume Q; γ represents the complexity of water quality. A larger value indicates worse water quality and higher reagent consumption. Considering the impact of sewage quality on reagent consumption, the water quality impact factor γ is included in the formula. The water quality impact factor γ is calculated based on water quality indicators (such as COD, BOD); Then determine the calculation formula of total consumption C: the total consumption C of sewage treatment is a comprehensive reflection of equipment consumption E, agent consumption M and time consumption t, which can be expressed as: C=E+M+k3t Among them, k3 is the time consumption coefficient, which represents the fixed consumption per unit time; k3=k 31 +k 32 lnt Among them, k 31 and k 32 All are constant coefficients; After sorting, the calculation formula for the total consumption C is: C=(a+bt)Q α t+k2Q β γ+(k 31 +k 32 lnt)t。 2. A method for estimating investment in a sewage treatment project according to claim 1, characterized in that: In the step 1, in the specific treatment process of sewage, the main equipment involved includes underground integrated sewage treatment equipment, equipment room, duty room, regulating tank, sludge tank and box transformer; Sewage enters the sewage treatment station through the sewage pipeline, and then passes through the coarse screen and fine screen in the screen channel and enters the regulating tank. The regulating tank also serves as the primary sedimentation tank. Large mud and sand sink into the sludge hopper and are discharged to the sludge tank by the sludge pump. The sewage in the regulating tank is lifted by the automatic mixing submersible sewage pump and enters the integrated treatment equipment for treatment; The integrated sewage treatment equipment is equipped with an anaerobic tank, an anoxic tank, an aerobic MBBR tank, an inclined plate sedimentation tank, a clear water tank and an equipment room. The main process is A2O+MBBR biofilm technology. The equipment needs to create anaerobic, anoxic and aerobic reaction conditions in sequence. The hydraulic retention time of the integrated sewage treatment equipment is greater than 12 hours. The sludge generated in the process is discharged into the sludge pool. According to the requirements of the sewage treatment plant, the sludge is regularly transported to the county sewage treatment station by sludge tankers for unified treatment. The coarse screen is a plug-in screen with a bar gap of 10mm. The screen residue is removed manually. The fine screen uses a rotary screen cleaner, which is a mechanical screen with a bar gap of 5mm. The coarse and fine screen residues are transported by a matching screen residue trolley. The treatment station will build new equipment rooms, equalization tanks and sludge tanks. The biological treatment system is a complete set of integrated treatment equipment. The specific process parameters of the equalization tank, anaerobic tank, anoxic tank and aerobic tank are as follows: equalization tank: T=8.0h, anaerobic tank: T=1.0h, anoxic tank: T=5.0h, aerobic tank: T=7.0h.

3. A method for estimating investment in a sewage treatment project according to claim 2, characterized in that: In the sewage treatment process, the outdoor pipelines involved are UPVC pipes, the buried depth of the pipelines is 1.0m, and hot-melt connections are used. The pipelines are laid on undisturbed original soil or tightly compacted backfill soil. After the original soil of the pipeline foundation is compacted, a 150mm medium-coarse sand cushion layer is added. Concrete piers should be set at the bends, tees, and valves of the outdoor pressure pipelines, and brackets should be made for overhead pipelines; The external corrosion protection of buried steel pipes adopts reinforced coal tar epoxy. The specific methods are as follows: one coat of primer, four coats of coal tar epoxy, three layers of glass cloth wrapped between the coatings, and two coats of epoxy resin paint for internal corrosion protection. Steel pipes and fittings should be treated with rust prevention before corrosion protection, and their quality standards should reach Sa2.5 level.

4. A method for estimating investment in a sewage treatment project according to claim 2, characterized in that: In the sewage treatment process, the freezing line of the outdoor pipeline involved is 0.82m. Insulation measures must be taken for the pipelines above the freezing line. The insulation material is hard polyurethane foam with a thickness of 40mm. The drainage pipes between the outdoor drainage inspection wells are reinforced concrete bell-and-spigot pipes with rubber ring joints. The pipeline foundation is 120℃20 concrete foundation. The foundation treatment adopts 30cm dry-inserted stone on the base and 20cm graded crushed stone for leveling. The pipeline is backfilled with plain soil. The foundation treatment of the buried integrated equipment is to lay 70cm dry-inserted stone on the base, 30cm graded crushed stone for leveling, and medium-coarse sand is used to backfill from the bottom of the integrated equipment trough to the top of the equipment, and the rest is backfilled with plain soil; The valve well shall be a rectangular reinforced concrete valve well and the well cover shall be a light cast iron well cover. The upper surface of the well cover shall be 150mm higher than the green belt.

5. A method for estimating investment in a sewage treatment project according to claim 2, characterized in that: The underground integrated sewage treatment equipment is installed through an underground installation method, and specifically includes a water treatment equipment body, an electronic control device, a water quality monitor, a blower, a submersible sewage pump, a UV sterilizer, a mixed liquid reflux device, an aeration device, a dosing device, and an operation information platform. The single unit has a processing capacity of 150t / d. The equipment is made of high-strength anti-corrosion special steel plates, and the structure meets the load-bearing requirements. The equipment box is required to be Q235 carbon steel, the inner surface primer is epoxy paint, and the outer surface is epoxy coal tar paint.

6. A method for estimating investment in a sewage treatment project according to claim 1, characterized in that: The second step, pipeline detection specifically includes pipeline water pressure and pipeline water and air tightness detection, and also includes pipeline flushing detection; Pipeline water pressure testing refers to the pressure testing of the pipeline after the pipe foundation and pipeline installation inspection are qualified, and the backfill soil height on both sides of the pipeline and above the pipe top is not less than 0.5m. The test pressure of PE water supply pipe = 1.5P, and not less than 0.8MPa, the test pressure of steel pipe = P+0.5, and not less than 0.9Mpa. After the pipeline pressure test is qualified, the rest of the trench should be backfilled in time; Pipeline water and air sealing test refers to the water and air sealing test of non-pressure pipelines. Before backfilling, the non-pressure pipelines shall be tested for water and air sealing. Backfilling can only be carried out after passing the test. When backfilling, the soil quality shall be carried out in accordance with the regulations; Pipeline flushing inspection refers to the flushing of drainage pipes, and the pipes are qualified if they are unobstructed. When blockage occurs during the operation of the sedimentation tank, a high-pressure water gun with a recycled water pump is used for flushing to ensure that the pipes are in an unobstructed state during the water treatment operation.

7. A method for estimating investment in a sewage treatment project according to claim 1, characterized in that: The step three, information monitoring management refers to real-time online monitoring of the effluent water quality SS, turbidity, and temperature of the integrated sewage treatment equipment, and the real-time online monitoring of COD and turbidity is achieved through water quality sensors. The water quality sensor can detect COD in real-time online with a range of 20-500 mg / L, an accuracy of ±2.5 mg / L or ±3%, and a turbidity range of 0.01-400 NTU, with an accuracy of ±10%; The integrated sewage treatment equipment operates fully automatically and intelligently, without human supervision, and interacts with the management information platform in real time. The management information platform can remotely monitor the equipment's working status, effluent SS, and turbidity, remotely control, diagnose faults, and push instant messages. The supporting mobile phone APP has the same functions. At the same time, the management information platform, as an information management platform for sewage treatment projects, collects, analyzes and supports decision-making of the treatment data involved in the water treatment process, so as to achieve real-time monitoring and management of the operation of sewage treatment projects. When collecting data involved in sewage treatment projects, it includes the scale of the overall treatment project, the design of sewage treatment equipment and the amount of water treated, as well as the inflow and outflow information in units of days, weeks and months, the effluent water quality index, energy consumption, the use of chemicals and the amount of sludge generated; The collected data is analyzed and processed through the information management platform to obtain data information of the overall sewage treatment project during the sewage treatment process.

8. A method for estimating investment in a sewage treatment project according to claim 1, characterized in that: The fourth step is to make an impact judgment based on the monitoring data information, and to judge the operating efficiency and environmental impact of the sewage treatment project based on the data information reflected in the sewage treatment process of the sewage treatment project; Conduct in-depth analysis of the treatment processes, treatment equipment and water treatment technologies involved in sewage treatment projects based on sewage treatment data information to overcome factors that affect operational efficiency in each treatment project; Treatment process refers to selecting and adjusting the appropriate sewage treatment process based on the actual situation, and selecting the most suitable treatment method in combination with the actual environmental conditions and characteristics of water resources in the treatment area, so as to overcome the impact of treatment process on operational efficiency. Treatment equipment refers to selecting efficient and durable sewage treatment equipment, regularly performing equipment maintenance, ensuring stable operation of the equipment, and further improving the operational efficiency of sewage treatment projects by increasing the degree of automation of the equipment and reducing manpower input. Water treatment technology refers to adopting new water treatment technology and selecting corresponding new water treatment materials based on the new water treatment technology, so as to improve water treatment efficiency, reduce operating costs, and overcome the impact of water treatment technology on operational efficiency. In the process of environmental impact assessment, pollution detection is carried out on the treated water after discharge to reduce the organic, nitrogen and phosphorus pollutants flowing into the water body, improve water quality and promote the health of aquatic ecosystems. At the same time, it is avoided that incompletely treated sewage containing high concentrations of pathogenic microorganisms and toxic chemicals is discharged into the water body, which will pose a threat to the health of the water body.

9. A method for estimating investment in a sewage treatment project according to claim 1, characterized in that: The step 5, evaluating and analyzing the treatment project is to obtain the data information of the overall sewage treatment project in the sewage treatment process to conduct an overall evaluation to understand the achievement of the expected goals of the sewage treatment project, including data processing, setting evaluation indicators and analysis and improvement; Data processing refers to processing the acquired data information so that the data information of various types of sewage treatment processes can be classified and stored according to the acquired log information and type information; Setting evaluation indicators means evaluating the sewage treatment project in combination with data information by selecting appropriate indicators, specifically evaluating the treatment efficiency and energy efficiency of the sewage treatment project. Treatment efficiency evaluation is to compare the difference in pollutant concentrations between influent and effluent to show the effect of sewage treatment, while energy efficiency refers to the comparison between the operating energy consumption of the overall sewage treatment equipment and the treatment efficiency, measured by the energy consumption per unit of treated water volume; Analysis and improvement means to find the causes of inefficiency through statistical analysis of evaluation results, and adopt more efficient processing technology or equipment based on the causes.

10. A sewage treatment project investment estimation system, used in the sewage treatment project investment estimation method according to any one of claims 1 to 9, characterized in that: Specifically including data layer, application layer and interface layer; The data layer completes the collection and storage of various water treatment data, such as basic data, operation data, and maintenance data of the water treatment process; The application layer is to formulate and implement the treatment plan of the water treatment project. Based on existing experience, at the beginning of the project, the scale of the sewage treatment project, the required technical solutions, location and other basic conditions can be preliminarily determined through technical feasibility analysis and market research, and scientific and reasonable design and planning can be formulated for each specific link of the sewage treatment project; After the design and planning of the sewage treatment project is completed, the control command is automatically sent to the head controller, which then operates the treatment equipment involved in the sewage treatment project. It can also adjust and optimize the treatment plan in a timely manner according to the actual situation in the sewage treatment process, and remind the back-end management personnel; The interface layer is the top layer of the system. The entire interface layer is scientifically designed, beautiful, easy to use and maintain, provides rich data analysis, and displays the treatment status of sewage treatment projects in real time. It can automatically generate various treatment data charts based on specific sewage treatment data information.

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