Quality-divided sewage collection and treatment system for chemical industry park

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage quality-based collection and treatment system for a chemical industrial park. Comprising a sewage conveying module which is used for independently conveying industrial sewage of a chemical enterprise; the sewage pretreatment module is used for receiving the industrial sewage conveyed by the sewage conveying module and carrying out conventional pretreatment and / or specific pollutant pretreatment on the received industrial sewage; the water quality detection module is communicated with the sewage conveying module and the sewage pretreatment module and is used for detecting the water quality of the industrial sewage in the sewage conveying module and the sewage pretreatment module; the background control module is electrically connected with the sewage conveying module, the water quality analysis module and the sewage pretreatment module. According to the system, the industrial sewage is pretreated in advance, so that the treatment difficulty and treatment cost of a tail-end sewage treatment plant on the industrial sewage are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a sewage quality separation collection and treatment system for a chemical park. Background Art

[0002] Wastewater treatment refers to the process of improving or eliminating water pollution by engineering and non-engineering methods. Wastewater treatment also refers to the process of purifying wastewater so that it meets the water quality requirements for drainage into a water body or reuse.

[0003] According to the source of sewage, sewage treatment is generally divided into industrial sewage treatment and domestic sewage treatment. Industrial sewage includes industrial sewage, agricultural sewage and medical sewage, while domestic sewage is the sewage generated in daily life.

[0004] At present, industrial sewage and domestic sewage are uniformly transported to sewage treatment plants for treatment, and finally reach the discharge standards through various treatment processes before being discharged. With the expansion of cities and the centralized construction of industrial parks, the discharge of industrial sewage and domestic sewage is not only increasing, but also the discharge standards and discharge volumes of industrial sewage from each company are difficult to control, resulting in more and more complicated industrial sewage and domestic sewage treatment processes. This increases the difficulty of monitoring industrial sewage discharge, reduces the sewage treatment efficiency of sewage treatment plants, and also increases the difficulty and cost of sewage treatment. Therefore, it is urgent to solve this problem.

[0005] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a chemical park sewage separation collection and treatment system, which not only reduces the difficulty and cost of industrial sewage treatment by the terminal sewage treatment plant through pre-treatment of industrial sewage, but also can realize the supervision of the source of industrial sewage discharge.

[0007] To achieve the above object, the technical solution of the present invention is implemented as follows: a chemical park sewage quality separation collection and treatment system, comprising:

[0008] A sewage transport module, which is used to transport industrial sewage from chemical enterprises separately;

[0009] A sewage pretreatment module, the sewage pretreatment module is used to receive the industrial sewage delivered by the sewage delivery module, and perform conventional pretreatment and / or characteristic pollutant pretreatment on the received industrial sewage;

[0010] A water quality detection module, wherein the water quality analysis module is connected to both the sewage transport module and the sewage pretreatment module, and is used to perform water quality detection on the industrial sewage in the sewage transport module and the sewage pretreatment module, and upload the detected water quality data;

[0011] The background control module is electrically connected to the sewage transport module, the water quality analysis module and the sewage pretreatment module, receives and analyzes the water quality data uploaded by the water quality analysis module in real time, and controls the sewage transport module and the sewage pretreatment module to work according to the analysis results, and controls the sewage transport module to discharge the pretreated industrial sewage into the sewage treatment plant.

[0012] Preferably, the sewage transport module includes a sewage collection pipe and a lift pump station; the sewage collection pipe is used to collect and transport the same type of industrial sewage in the chemical park area; the lift pump station is connected to the sewage collection pipe.

[0013] Preferably, the sewage collection pipe includes a separate collection and delivery pipe and a collective collection and delivery pipe; the separate collection and delivery pipe is used to separately deliver industrial sewage from large enterprises with a daily discharge of more than 5 tons of industrial sewage. The collective collection and delivery pipe is used to simultaneously collect and deliver industrial sewage from 2-6 small enterprises with a daily discharge of less than 5 tons of industrial sewage.

[0014] Preferably, the sewage pretreatment module includes a characteristic pollutant treatment tank and a conventional treatment tank; the conventional treatment tank is connected to the sewage collection pipe and the lifting pump station, and is used to receive the industrial sewage transported by the sewage collection pipe, and perform conventional sewage pretreatment on the industrial sewage. The characteristic pollutant treatment tank is connected to the sewage collection pipe and the conventional treatment tank, and is used to receive the industrial sewage containing characteristic pollutants transported by the sewage collection pipe, and perform characteristic pollutant pretreatment on the industrial sewage containing characteristic pollutants, and the industrial sewage that has completed the characteristic pollutant pretreatment is transported to the conventional treatment tank; the lifting pump station is connected to the conventional treatment tank, and transports the industrial sewage that has completed sewage pretreatment in the conventional treatment tank 30 to the sewage treatment plant.

[0015] Preferably, the sewage pretreatment module also includes an accident emergency pool; the accident emergency pool is connected to both the lift pump station and the sewage treatment plant; the accident emergency pool is used to store industrial sewage that still does not meet the pretreatment emission standards after conventional pretreatment in the conventional treatment pool, and to perform secondary analysis and pretreatment on the stored industrial sewage.

[0016] Preferably, the water quality detection module includes an incoming water detection well, a first water quality detection unit, a second water quality detection unit, a third water quality detection unit and a fourth water quality detection unit; the incoming water detection well is arranged in the middle of the sewage collection pipe; the first water quality detection unit is arranged in the incoming water detection well, for detecting the pH value, nitrogen, phosphorus, organic matter and heavy metal content of the industrial sewage flowing into the incoming water detection well; the second water quality detection unit is arranged in the characteristic pollutant treatment tank, for detecting the water quality of the industrial sewage in the characteristic pollutant treatment tank; the third water quality detection unit is arranged in the conventional treatment tank, for detecting the water quality of the industrial sewage in the conventional treatment tank; the fourth water quality detection unit is arranged in the accident emergency tank, for detecting the water quality of the industrial sewage in the accident emergency tank.

[0017] Preferably, it also includes an anti-illegal discharge monitoring module; the anti-illegal discharge monitoring module is installed on the sewage collection pipe, and is used to count the total amount of industrial sewage transported by the sewage collection pipe, and upload the statistical data to the background control module; the background control module is electrically connected to the industrial water meter of the chemical enterprise, and automatically retrieves the data of the industrial water meter of the chemical enterprise, and uses the anti-illegal discharge evaluation formula: N = (industrial sewage discharge volume / industrial water consumption), N is less than the standard production water loss coefficient of the industrial sewage discharge enterprise for abnormal discharge, and N is greater than the standard production water loss coefficient of the industrial sewage discharge enterprise for normal discharge.

[0018] Preferably, the background control module includes a background computer, a pipeline control valve and an industrial sewage delivery pump; the background computer is electrically connected to the first water quality detection part, the second water quality detection part, the third water quality detection part and the fourth water quality detection part; the pipeline control valve is electrically connected to the background computer, and is used to control the delivery direction of industrial sewage in the sewage pretreatment module; the industrial sewage delivery pump is electrically connected to the background computer and is installed in the sewage pretreatment module, and is used to provide power for transporting industrial sewage in the sewage pretreatment module.

[0019] Preferably, a time-sharing control program and a liquid level meter are also provided in the background control module; the liquid level meter is arranged in the lifting pump station, and is used to detect the liquid level data of the sewage in the lifting pump station, and transmit the data to the time-sharing control program; the time-sharing control program receives and processes the liquid level data uploaded by the liquid level meter, and controls the separate collecting and conveying pipes and the aggregated collecting and conveying pipes connected to the same sewage pretreatment module to work in time, and takes turns to introduce the industrial sewage into the sewage pretreatment module for treatment.

[0020] Preferably, the background control module also includes an independent control valve, which is installed on a branch pipe connecting the summary collection and transportation pipe with each enterprise, and the independent control valve is electrically connected to the time-sharing control program and the liquid level meter; the time-sharing control program opens the independent control valves on the branch pipes connecting the summary collection and transportation pipe with each enterprise in turn according to the liquid level data uploaded by the liquid level meter.

[0021] The beneficial effects of the present invention are embodied in:

[0022] (1) The system provided by the present invention can realize separate special transportation of industrial sewage for enterprises that discharge industrial sewage, and realize one enterprise and one pipe. At the same time, the transported industrial sewage is pre-treated, so that the sewage treatment plant at the end does not need to set up multiple combined treatment processes to centrally treat industrial sewage, reducing the treatment cost and difficulty of industrial sewage, which meets the characteristics of low carbon and environmental protection.

[0023] (2) The method for industrial wastewater discharge treatment proposed by the system provided by the present invention can guide the enterprise's park to realize the concept of zoning layout during the planning stage. By zoning the chemical park and centrally arranging similar enterprises, it is convenient to set up pretreatment stations in different zones to collect and treat enterprises that produce the same type of characteristic pollutants.

[0024] (3) The system provided by the present invention can implement time-sharing discharge for enterprises that use public pipelines to transport industrial wastewater. When discharging industrial wastewater, all enterprises, regardless of their size, can achieve "one enterprise, one discharge pipeline". Thus, the discharged industrial wastewater can be monitored at the source to avoid excessive discharge and illegal discharge of industrial wastewater by enterprises, thereby achieving effective supervision of chemical park enterprises and reducing the treatment cost of industrial wastewater.

[0025] (4) The system provided by the present invention sets the accident emergency pool in the pretreatment station, which can use a one-enterprise-one-pipe pipeline to transport the enterprise's accident water, and at the same time use the accident pool dosing treatment system and the pretreatment station pretreatment system to treat and dispose of the accident water.

[0026] (5) The system provided by the present invention has high flexibility in use and can meet the needs of various industrial wastewater treatment situations, thereby improving the treatment efficiency of industrial wastewater discharged by enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the system module of the present invention.

[0028] Description of reference numerals:

[0029] 10. Chemical enterprises; 11. Sewage collection pipe; 111. First control valve; 12. Incoming water detection well; 13. Characteristic delivery pipe; 131. Second control valve; 14. Pretreatment connecting pipe; 141. Third control valve; 15. Lifting delivery pipe; 151. Lifting delivery gate; 16. Emergency pipeline; 161. Emergency control valve; 17. Emergency discharge pipeline; 171. Emergency discharge valve; 18. Conventional sewage delivery pipeline; 181. Conventional valve; 20. Characteristic pollutant treatment pool; 21. Second water quality detection department; 30. Conventional treatment pool; 31. Third water quality detection department; 40. Lifting pump station; 50. Accident emergency pool; 51. Fourth water quality detection department; 52. Override pipe; 521. Override pipe control valve; 60. Sewage treatment plant. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Example

[0032] See also Figure 1 As shown:

[0033] The present invention provides a chemical park sewage quality-based collection and treatment system, comprising:

[0034] The sewage transport module is used to separately transport the industrial sewage of the chemical enterprise 10.

[0035] The sewage transport module includes a sewage collection pipe 11 and a lift pump station 40; the sewage collection pipe 11 is used to collect and transport the same type of industrial sewage in the chemical park area.

[0036] In actual use, the sewage collection pipe 11 includes a separate collection and delivery pipe and a collective collection and delivery pipe. The separate collection and delivery pipe is used to separately deliver industrial sewage from large enterprises with a daily discharge of more than 500 tons of industrial sewage, while the collective collection and delivery pipe is used to collect and deliver industrial sewage from 2-6 small enterprises with a daily discharge of less than 500 tons of industrial sewage.

[0037] By setting up two types of sewage collection pipes 11, it is possible to achieve separate transportation of industrial sewage discharged by enterprises in the chemical park according to the amount of industrial sewage discharged by the enterprises. One enterprise has one pipe, or similar industrial sewage discharge enterprises share a single transportation pipe. Compared with the existing unified mixed pipe discharge, this treatment method can not only achieve directional transportation of industrial sewage and improve the efficiency of industrial sewage transportation. At the same time, it can perform preliminary classification treatment on industrial sewage at the source, avoid the mixing of different industrial sewage, or the complex physical and chemical reactions caused by mixing with domestic sewage, thereby reducing the difficulty of subsequent sewage treatment plants 60 for industrial sewage treatment.

[0038] The sewage pretreatment module is used to receive the industrial sewage delivered by the sewage delivery module and perform conventional pretreatment and / or characteristic pollutant pretreatment on the received industrial sewage.

[0039] The sewage pretreatment module mainly includes two parts: a characteristic pollutant treatment pool 20 and a conventional treatment pool 30. The characteristic pollutant treatment pool 20 and the conventional treatment pool 30 are generally constructed downstream of the chemical industry park and are located near the chemical industry park.

[0040] The conventional treatment tank 30 is connected to the sewage collection pipe 11 and the lifting pump station 40, and is used to receive the industrial sewage transported by the sewage collection pipe 11 and perform conventional sewage pretreatment on the industrial sewage. The lifting pump station 40 is connected to the conventional treatment tank 30, and transports the industrial sewage that has completed sewage pretreatment in the conventional treatment tank 30 to the sewage treatment plant 60.

[0041] A fine screen and an aerated grit chamber are provided in the conventional treatment tank 30. Pretreatment of the conventional treatment tank 30: the sewage collection pipe 11 directly introduces the industrial sewage discharged by the enterprise that meets the enterprise industry emission standards into the conventional treatment tank 30. After the industrial sewage in the conventional treatment tank 30 is treated by fine screen filtration and aerated grit chamber, it meets the water inlet index requirements of the terminal sewage treatment plant 60.

[0042] This can not only avoid the mixing of different industrial wastewaters, but also reduce the difficulty of industrial wastewater treatment at the terminal sewage treatment plant 60, reduce the treatment process of the sewage plant, reduce the cost of sewage collection and treatment, and improve efficiency.

[0043] The characteristic pollutant treatment tank 20 is connected to both the sewage collection pipe 11 and the conventional treatment tank 30, and is used to receive the industrial sewage containing characteristic pollutants transported by the sewage collection pipe 11, and perform characteristic pollutant pretreatment on the industrial sewage containing characteristic pollutants, and the industrial sewage that has completed the characteristic pollutant pretreatment is transported to the conventional treatment tank 30.

[0044] Since the components of industrial wastewater discharged from different enterprises in the same chemical park are different, some industrial wastewater contains characteristic pollutants that far exceed the pretreatment capacity of conventional treatment tanks 30.

[0045] When the characteristic pollutants are difficult-to-degrade organic matter, the difficult-to-degrade organic matter mainly comes from the pharmaceutical industry, papermaking industry, leather industry, coking wastewater, electroplating wastewater, metallurgical wastewater, printing and dyeing wastewater, food processing wastewater and other industries. The characteristic pollutant pretreatment process in the characteristic pollutant treatment tank 20 is a combined treatment process of "hydrolysis acidification tank + Fenton advanced oxidation tank / ozone advanced oxidation / electrocatalytic advanced oxidation".

[0046] When the characteristic pollutants are heavy metals, the heavy metals mainly come from heavy non-ferrous metal mining and dressing, heavy non-ferrous metal smelting, lead-acid battery manufacturing, electroplating, chemical raw materials and chemical products manufacturing, etc. The characteristic pollutant pretreatment process in the characteristic pollutant treatment pool 20 is "chemical precipitation + ion exchange method".

[0047] When the characteristic pollutants are salts, the salts mainly come from high-salt wastewater from coal chemical industry, electric desulfurization wastewater, wastewater from oil refining and petrochemical industries, wastewater from pharmaceutical industries, etc. The characteristic pollutant pretreatment process in the characteristic pollutant treatment pool 20 is "multi-media filter + ultrafiltration + nanofiltration + reverse osmosis"

[0048] When the characteristic pollutants include more than one of the above, they can be treated by a combination of the above processes.

[0049] By carrying out characteristic pollutant pretreatment in the characteristic pollutant treatment pool 20, the concentration of characteristic pollutants in the industrial wastewater is reduced. After meeting the pretreatment range of the conventional treatment pool 30, it is discharged into the conventional treatment pool 30 for pretreatment. After being pretreated in the conventional treatment pool 30, when it meets the designed inlet water quality standard of the sewage treatment plant 60, it is transported to the sewage treatment plant 60 through the public pipeline corridor sewage transmission pipeline 18 through the lifting pump station 40 for unified treatment.

[0050] The centralized sewage treatment process of the sewage treatment plant 60 is preferably "regulating tank + A2O tank + high-efficiency sedimentation tank + denitrification filter + disinfection treatment", while taking into account the standard discharge of sewage treatment.

[0051] The sewage pretreatment module also includes an accident emergency pool 50. The accident emergency pool 50 is connected to the lift pump station 40 and the sewage treatment plant 60; the accident emergency pool 50 is used to store industrial sewage that still does not meet the pretreatment discharge standard after conventional pretreatment in the conventional treatment pool 30, and to perform secondary analysis and pretreatment on the stored industrial sewage, thereby improving the treatment time efficiency of the conventional treatment pool 30 and avoiding the discharge of industrial sewage exceeding the standard from occupying the conventional treatment pool 30 for a long time.

[0052] In specific applications, when the industrial wastewater discharged by the enterprise is not treated, or the treatment fails, or the characteristic pollutants in the treated industrial wastewater seriously exceed the standard, that is, the enterprise has illegally discharged. At this time, the characteristic pollutant treatment pool 20 and the conventional treatment pool 30 can no longer treat it in a short time. In order to avoid pollution to the water body, it is directly introduced into the accident emergency pool 50 through the bypass pipe 52, so that it can be treated separately, improve the timeliness of industrial wastewater discharge supervision, and reduce the losses caused by environmental pollution caused by industrial wastewater or increase in sewage treatment plant treatment costs.

[0053] When an accident occurs in an enterprise and the capacity of the enterprise's own emergency pool is insufficient, the enterprise's accident water is switched through a one-enterprise-one-pipe pipeline and discharged directly into the accident emergency pool 50 through the bypass pipe 52 for temporary storage. At the same time, the accident emergency pool 50 is provided with a dosing device to facilitate operators to promptly treat the discharged enterprise accident water.

[0054] The treatment process is that when the quality of the accident water meets the standard for discharge into the sewage treatment plant 60 by the enterprise, the emergency discharge valve 171 can be opened and the water can be discharged into the sewage treatment plant 60 through the emergency discharge pipe 17 for treatment.

[0055] When the quality of the accident water does not meet the standards for discharge into the sewage treatment plant 60 by the enterprise, it is subjected to physical and chemical treatment through the dosing device, and then the bypass pipe control valve 521 is opened, and the bypass pipe 52 directly discharges it from the accident emergency pool 50 into the conventional treatment pool 30 and / or the characteristic pollutant treatment pool 20 for further treatment.

[0056] The water quality detection module and the water quality analysis module are connected to the sewage transport module and the sewage pretreatment module, and are used to perform water quality detection on the industrial sewage in the sewage transport module and the sewage pretreatment module, and upload the detected water quality data.

[0057] The water quality detection module includes an incoming water detection well 12, a first water quality detection unit, a second water quality detection unit 21, a third water quality detection unit 31 and a fourth water quality detection unit 51. The incoming water detection well 12 is arranged in the middle of the sewage collection pipe 11; the first water quality detection unit is arranged in the incoming water detection well 12, and is used to detect the pH value, nitrogen, phosphorus, organic matter and heavy metal content of the industrial sewage flowing into the incoming water detection well 12. The second water quality detection unit 21 is arranged in the characteristic pollutant treatment tank 20, and is used to detect the water quality of the industrial sewage in the characteristic pollutant treatment tank 20; the third water quality detection unit 31 is arranged in the conventional treatment tank 30, and is used to detect the water quality of the industrial sewage in the conventional treatment tank 30; the fourth water quality detection unit 51 is arranged in the accident emergency tank 50, and is used to detect the water quality of the industrial sewage in the accident emergency tank 50.

[0058] The first water quality detection unit, the second water quality detection unit 21, the third water quality detection unit 31 and the fourth water quality detection unit 51 generally include but are not limited to ammonia nitrogen online detection instruments, COD online detection instruments, total phosphorus online detection instruments, total nitrogen online detection instruments, PH online detection instruments and other conventional detection equipment and characteristic pollutant online detection equipment, so as to realize real-time monitoring of the water quality of industrial wastewater discharged by enterprises and obtain the pH value, nitrogen, phosphorus, organic matter and heavy metal content of the industrial wastewater.

[0059] The background control module is electrically connected to the sewage transport module, the water quality analysis module and the sewage pretreatment module, receives and analyzes the water quality data uploaded by the water quality analysis module in real time, and controls the sewage transport module and the sewage pretreatment module to work according to the analysis results, and controls the sewage transport module to discharge the pretreated industrial sewage into the sewage treatment plant 60.

[0060] The background control module includes a background computer, pipeline control valves and industrial sewage delivery pumps.

[0061] The pipeline control valve is electrically connected to the background computer and is used to control the conveying direction of the industrial sewage in the sewage pretreatment module.

[0062] There are multiple industrial sewage delivery pumps which are electrically connected to the background computer and are respectively installed in the characteristic pollutant treatment tank 20, the conventional treatment tank 30 and the accident emergency tank 50 to provide power for transporting industrial sewage in the sewage pretreatment module.

[0063] The background computer is electrically connected to the first water quality detection unit, the second water quality detection unit 21, the third water quality detection unit 31 and the fourth water quality detection unit 51, receives and analyzes the water quality data of industrial wastewater at various links detected by the first water quality detection unit, the second water quality detection unit 21, the third water quality detection unit 31 and the fourth water quality detection unit 51, and remotely controls the operation of pipeline control valves and industrial wastewater delivery pumps based on the water quality data.

[0064] In specific application, a first control valve 111 is provided on the sewage collection pipe 11 between the incoming water detection well 12 and the conventional treatment tank 30. When the first water quality detection unit in the incoming water detection well 12 detects that the water quality of the industrial sewage in the incoming water detection well 12 meets the pretreatment standard of the conventional treatment tank 30, the first control valve 111 is opened and the industrial sewage is transported to the conventional treatment tank 30 for pretreatment.

[0065] A characteristic delivery pipe 13 connected to the characteristic pollutant treatment tank 20 is provided on one side of the incoming water detection well 12, and a second control valve 131 is provided on the characteristic delivery pipe 13. When the first water quality detection part in the incoming water detection well 12 detects that the water quality of the industrial sewage in the incoming water detection well 12 does not meet the pretreatment standard of the conventional treatment tank 30, but meets the pretreatment standard of the characteristic pollutant treatment tank 20, the second control valve 131 is opened, and the industrial sewage is transported to the characteristic pollutant treatment tank 20 for characteristic pollutant pretreatment.

[0066] A pretreatment connecting pipe 14 is provided between the characteristic pollutant treatment tank 20 and the conventional treatment tank 30, and a third control valve 141 is provided on the pretreatment connecting pipe 14. When the second water quality detection unit 21 detects that the water quality of the industrial wastewater in the characteristic pollutant treatment tank 20 after characteristic pollutant pretreatment meets the pretreatment standard of the conventional treatment tank 30, the third control valve 141 opens, and the industrial wastewater in the characteristic pollutant treatment tank 20 enters the conventional treatment tank 30 for conventional pretreatment process.

[0067] When one of the first control valve 111 , the second control valve 131 and the third control valve 141 is in operation, the other two are in a closed mode.

[0068] A lifting pipe 15 is provided between the conventional treatment pool 30 and the lifting pump station 40, and a lifting gate 151 is provided on the lifting pipe 15. A conventional sewage conveying pipeline 18 is provided between the lifting pump station 40 and the sewage treatment plant 60, and a conventional valve 181 is provided on the conventional sewage conveying pipeline 18.

[0069] When the third water quality detection unit 31 detects that the water quality of the industrial sewage in the conventional treatment tank 30 meets the acceptable sewage treatment water quality standard of the sewage treatment plant 60, the lifting and conveying gate 151 and the conventional valve 181 are opened at the same time, and the lifting pump station 40 starts working at the same time, and the industrial sewage in the conventional treatment tank 30 is smoothly transported to the sewage treatment plant 60 for treatment.

[0070] An emergency pipe 16 connected to the accident emergency pool 50 is provided on one side of the lifting pump station 40, and an emergency control valve 161 is provided on the emergency pipe 16. When the first water quality detection unit in the incoming water detection well 12 detects that the water quality of the industrial sewage in the incoming water detection well 12 does not meet the pretreatment standard of the conventional treatment pool 30, and does not meet the pretreatment standard of the characteristic pollutant treatment pool 20, and there is no industrial sewage that needs to be treated in the conventional treatment pool 30. The first control valve 111, the lifting and conveying gate 151 and the emergency control valve 161 are opened at the same time, and the industrial sewage directly passes through the conventional treatment pool 30 and is initially filtered, and then the industrial sewage in the conventional treatment pool 30 is quickly conveyed to the accident emergency pool 50 by the lifting pump station 40.

[0071] This allows such industrial wastewater to be treated by specialized personnel, and to conduct industrial wastewater source analysis and division of responsibilities, thereby avoiding the expansion of excessive discharge of industrial wastewater and reducing risks and losses to a minimum.

[0072] An emergency discharge pipe 17 is provided between the accident emergency pool 50 and the sewage treatment plant 60, and an emergency discharge valve 171 is provided on the emergency discharge pipe 17. When the source of the industrial sewage in the accident emergency pool 50 is determined, with the assistance of the enterprise discharging the industrial sewage, the industrial sewage in the accident emergency pool 50 is subjected to emergency pretreatment, and then the emergency discharge valve 171 is opened to discharge the sewage into the sewage treatment plant 60 for special treatment.

[0073] Through the background computer, pipeline control valves and industrial sewage delivery pumps, the industrial sewage is automatically delivered in the characteristic pollutant treatment pool 20, the conventional treatment pool 30 and the accident emergency pool 50, which not only reduces the workload of on-site operators, but also realizes the automation, precision and diversified sewage pretreatment mode. In addition, the treatment efficiency of the industrial sewage pretreatment link is improved, and the flexibility of industrial sewage in the pretreatment stage is also improved, so as to respond to more industrial sewage discharge situations and reduce the treatment cost of industrial sewage.

[0074] It also includes an anti-steal discharge monitoring module, which is generally a pipeline flow statistics table. The anti-steal discharge monitoring module is installed on the sewage collection pipe 11 or in the lifting pump station 40, and is used to count the total amount of industrial sewage transported by the sewage collection pipe 11 or the lifting pump station 40 each time it works, and upload the statistical data to the background control module.

[0075] The background control module is electrically connected to the industrial water meter of the chemical enterprise 10, and automatically retrieves the data of the industrial water meter of the chemical enterprise 10, and uses the anti-theft discharge evaluation formula: N = (industrial wastewater discharge / industrial water consumption). If N is less than the standard production water loss coefficient of the industrial wastewater discharge enterprise, it is abnormal discharge, and if N is greater than the standard production water loss coefficient of the industrial wastewater discharge enterprise, it is normal discharge.

[0076] In specific application, the enterprise's standard production water loss coefficient is the ratio of the value obtained by deducting the water loss during normal production from the total production water consumption of the enterprise to the total production water consumption of the enterprise.

[0077] By setting up an anti-illegal discharge monitoring module, the total amount of industrial wastewater discharged by enterprises can be monitored to prevent enterprises from privately discharging industrial wastewater into domestic sewage pipes or nearby surface water bodies, thereby realizing the monitoring of industrial wastewater from the source.

[0078] The background control module is also provided with a time-sharing control program and a liquid level meter; the liquid level meter is provided in the lifting pump station 40, and is used to detect the liquid level data of the sewage in the lifting pump station 40, and transmit the data to the time-sharing control program. The time-sharing control program receives and processes the liquid level data uploaded by the liquid level meter, and controls the separate collection and delivery pipe and the aggregated collection and delivery pipe connected to the same sewage pretreatment module to work in time-sharing, and takes turns to introduce the industrial sewage into the sewage pretreatment module for treatment.

[0079] In addition, the background control module also includes an independent control valve, which is installed on the branch pipe connecting the summary collection and transportation pipe with each enterprise. The independent control valve is electrically connected to the time-sharing control program and the liquid level meter. The time-sharing control program turns on the independent control valve on the branch pipe connecting the summary collection and transportation pipe with each enterprise based on the liquid level data uploaded by the liquid level meter.

[0080] In the specific implementation, since it is costly for small enterprises to have one pipe for one enterprise, the chemical park sets up a public collection and transportation pipe, and discharges sewage according to the agreement of each enterprise in the time-sharing control program. For example, centralized discharge is carried out in different time periods, and the enterprise sewage is temporarily stored in the sewage regulating tank built by the enterprise itself during other periods. For example, enterprise A opens an independent control valve for centralized discharge from 0 to 6 o'clock, and the sewage is temporarily stored during other periods; enterprise B opens an independent control valve for centralized discharge from 6 to 12 o'clock; enterprise C opens an independent control valve for centralized discharge from 12 to 18 o'clock; enterprise D opens an independent control valve for centralized discharge from 18 to 22 o'clock, so as to realize the separate discharge and treatment of industrial sewage from different manufacturers in the sewage pretreatment module of the same treatment system, and realize real-time online monitoring, so as to achieve the management effect of one enterprise and one pipe.

[0081] This enables the system to simultaneously meet the industrial wastewater pretreatment needs of both large-scale industrial wastewater discharge enterprises and small-scale chemical parks, reducing the pretreatment costs of industrial wastewater and improving the flexibility of the entire system.

[0082] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chemical park sewage quality collection and treatment system, characterized in that: include: A sewage transport module, the sewage transport module being used to separately transport industrial sewage from a chemical enterprise (10); A sewage pretreatment module, the sewage pretreatment module is used to receive the industrial sewage delivered by the sewage delivery module, and perform conventional pretreatment and / or characteristic pollutant pretreatment on the received industrial sewage; A water quality detection module, wherein the water quality analysis module is connected to both the sewage transport module and the sewage pretreatment module, and is used to perform water quality detection on the industrial sewage in the sewage transport module and the sewage pretreatment module, and upload the detected water quality data; A background control module, wherein the background control module is electrically connected to the sewage transport module, the water quality analysis module and the sewage pretreatment module, receives and analyzes the water quality data uploaded by the water quality analysis module in real time, controls the sewage transport module and the sewage pretreatment module to operate according to the analysis results, and controls the sewage transport module to discharge the pretreated industrial sewage into the sewage treatment plant (60).

2. A chemical park sewage quality separation collection and treatment system according to claim 1, characterized in that: The sewage transport module comprises a sewage collection pipe (11) and a lift pump station (40); the sewage collection pipe (11) is used to collect and transport the same type of industrial sewage in the chemical park area; the lift pump station (40) is connected to the sewage collection pipe (11).

3. A chemical park sewage quality separation collection and treatment system according to claim 2, characterized in that: The sewage collection pipe (11) comprises a separate collection and delivery pipe and a collective collection and delivery pipe; the separate collection and delivery pipe is used to individually deliver industrial sewage from large enterprises with a daily discharge of more than 500 tons of industrial sewage; the collective collection and delivery pipe is used to simultaneously collect and deliver industrial sewage from 2 to 6 small enterprises with a daily discharge of less than 500 tons of industrial sewage.

4. A chemical park sewage quality-based collection and treatment system according to claim 2 or 3, characterized in that: The sewage pretreatment module comprises a characteristic pollutant treatment tank (20) and a conventional treatment tank (30); the conventional treatment tank (30) is connected to the sewage collection pipe (11) and the lifting pump station (40), and is used to receive industrial sewage transported by the sewage collection pipe (11), and perform conventional sewage pretreatment on the industrial sewage; the characteristic pollutant treatment tank (20) is connected to the sewage collection pipe (11) and the conventional treatment tank (30), and is used to receive industrial sewage containing characteristic pollutants transported by the sewage collection pipe (11), and perform characteristic pollutant pretreatment on the industrial sewage containing characteristic pollutants, and transport the industrial sewage that has completed the characteristic pollutant pretreatment to the conventional treatment tank (30); the lifting pump station (40) is connected to the conventional treatment tank (30), and transports the industrial sewage that has completed sewage pretreatment in the conventional treatment tank (30) to the sewage treatment plant (60).

5. A chemical park sewage quality separation collection and treatment system according to claim 4, characterized in that: The sewage pretreatment module further comprises an accident emergency pool (50); the accident emergency pool (50) is connected to both the lift pump station (40) and the sewage treatment plant (60); the accident emergency pool (50) is used to store industrial sewage that still does not meet the pretreatment discharge standard after conventional pretreatment in the conventional treatment pool (30), and to perform secondary analysis and pretreatment on the stored industrial sewage.

6. A chemical park sewage quality separation collection and treatment system according to claim 5, characterized in that: The water quality detection module comprises an incoming water detection well (12), a first water quality detection unit, a second water quality detection unit (21), a third water quality detection unit (31) and a fourth water quality detection unit (51); the incoming water detection well (12) is arranged in the middle of the sewage collection pipe (11); the first water quality detection unit is arranged in the incoming water detection well (12) and is used to detect the pH value, nitrogen, phosphorus, organic matter and heavy metal content of the industrial sewage flowing into the incoming water detection well (12); the second water quality detection unit (21) is arranged in the characteristic pollutant treatment tank (20) and is used to detect the water quality of the industrial sewage in the characteristic pollutant treatment tank (20); the third water quality detection unit (31) is arranged in the conventional treatment tank (30) and is used to detect the water quality of the industrial sewage in the conventional treatment tank (30); and the fourth water quality detection unit (51) is arranged in the accident emergency tank (50) and is used to detect the water quality of the industrial sewage in the accident emergency tank (50).

7. A chemical park sewage quality separation collection and treatment system according to claim 6, characterized in that: It also includes an anti-illegal discharge monitoring module; the anti-illegal discharge monitoring module is installed on the sewage collection pipe (11) or in the lifting pump station (40), and is used to count the total amount of industrial sewage transported by the sewage collection pipe (11) or the lifting pump station (40), and upload the statistical data to the background control module; the background control module is electrically connected to the industrial water meter of the chemical enterprise (10), and automatically retrieves the data of the industrial water meter of the chemical enterprise (10), and uses the anti-illegal discharge evaluation formula: N = industrial sewage discharge volume / industrial water volume, N is less than the standard production water loss coefficient of the industrial sewage discharge enterprise, which is abnormal discharge, and N is greater than the standard production water loss coefficient of the industrial sewage discharge enterprise, which is normal discharge.

8. The method for using the chemical park sewage quality separation collection and treatment system according to claim 7, characterized in that: The background control module comprises a background computer, a pipeline control valve and an industrial sewage delivery pump; the background computer is electrically connected to the first water quality detection part, the second water quality detection part (21), the third water quality detection part (31) and the fourth water quality detection part (51); the pipeline control valve is electrically connected to the background computer and is used to control the delivery direction of the industrial sewage in the sewage pretreatment module; the industrial sewage delivery pump is electrically connected to the background computer and is installed in the sewage pretreatment module and is used to provide power for delivering the industrial sewage in the sewage pretreatment module.

9. A chemical park sewage quality-based collection and treatment system according to claim 8, characterized in that: The background control module is also provided with a time-sharing control program and a liquid level meter; the liquid level meter is arranged in the lifting pump station (40) and is used to detect the liquid level data of the sewage in the lifting pump station (40) and transmit the data to the time-sharing control program; The time-sharing control program receives and processes the liquid level data uploaded by the liquid level meter, and controls the separate collection and delivery pipes and the aggregate collection and delivery pipes connected to the same sewage pretreatment module to work in time-sharing, and takes turns to introduce industrial sewage into the sewage pretreatment module for treatment.

10. A chemical park sewage quality separation collection and treatment system according to claim 9, characterized in that: The background control module also includes an independent control valve, which is installed on the branch pipe connecting the summary collection and transportation pipe with each enterprise, and the independent control valve is electrically connected to the time-sharing control program and the liquid level meter; the time-sharing control program opens the independent control valves on the branch pipes connecting the summary collection and transportation pipe with each enterprise in turn according to the liquid level data uploaded by the liquid level meter.

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