Sewage treatment method, system and equipment

Abstract

The invention provides a sewage treatment method, system and equipment, and relates to the field of sewage treatment. The problems of low purification efficiency, high energy consumption and more byproducts in the existing water quality purification process are solved. The sewage treatment method comprises the following steps: obtaining sewage to be treated; the pretreatment unit is used for filtering the to-be-treated sewage to obtain a first treated water body; the pretreatment unit comprises a grating device and a grit chamber; according to a detection standard of a target water body, performing detection treatment on the first treated water body through an effluent detection unit, and determining a to-be-treated program of the first treated water body; according to the to-be-treated program of the first treated water body, performing biological treatment on the first treated water body through a biological reaction unit and / or performing oxidation treatment on the first treated water body through an advanced treatment unit to obtain a target water body. According to the scheme, the purification efficiency of the sewage to be treated is improved, and meanwhile the number of by-products, energy consumption and production cost are reduced.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, and in particular to a sewage treatment method, system and equipment. Background Art

[0002] At present, there are many water purification technologies on the market, such as physical, chemical, and biological methods. However, these methods have problems such as low purification efficiency, high energy consumption, and many by-products in practical applications. In addition, traditional water purification equipment has a complex structure, is difficult to operate and maintain, and is costly. Summary of the invention

[0003] The present invention provides a sewage treatment method, system and equipment, which solve the problems of low purification efficiency, high energy consumption and many by-products in the existing water purification process.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0005] An embodiment of the present invention provides a sewage treatment method, which is applied to a sewage treatment system. The sewage treatment system includes a pretreatment unit, a biological reaction unit, a deep treatment unit, and an effluent detection unit. The method includes:

[0006] Obtaining sewage for treatment;

[0007] The sewage to be treated is filtered through a pretreatment unit to obtain a first treated water body; the pretreatment unit includes a grid device and a grit chamber;

[0008] According to the detection standard of the target water body, the first treated water body is detected and processed by the water outlet detection unit to determine the to-be-processed procedure of the first treated water body;

[0009] According to the to-be-treated procedure of the first treated water body, the first treated water body is subjected to biological treatment through a biological reaction unit and / or is subjected to oxidation treatment through a deep treatment unit to obtain a target water body.

[0010] Optionally, the detection standard of the target water body includes: at least one of a first organic matter content, a second organic matter content, an ammonia nitrogen content, and a metal ion content.

[0011] Optionally, filtering the wastewater to be treated by a pretreatment unit to obtain a first treated water body includes:

[0012] The sewage to be treated is filtered through the grid device to obtain filtered water;

[0013] The filtered water body is subjected to sedimentation treatment in the grit chamber to obtain a first treated water body.

[0014] Optionally, according to the discharge standard of the target water body, the first treated water body is detected and processed by a water outlet detection unit to determine the to-be-processed procedure of the first treated water body, including:

[0015] If the first organic matter content or ammonia nitrogen content of the first treated water body in the detection and treatment result is greater than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is subjected to biological treatment by a biological reaction unit to obtain a second treated water body; the second treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body;

[0016] If the first organic matter content or the ammonia nitrogen content of the first treated water body in the detection treatment result is greater than the first preset value, and the second organic matter content and the metal ion content are both less than the second preset value, the first treated water body is biologically treated by the biological reaction unit to obtain a second treated water body, and the second treated water body is output as the target water body;

[0017] If the first organic matter content and ammonia nitrogen content of the first treated water body in the detection and treatment results are both less than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is oxidized by a deep treatment unit to obtain the target water body.

[0018] Optionally, biological treatment of the first treated water body is performed by a biological reaction unit, comprising:

[0019] Determining the type of the reaction organism in the biological reaction unit according to the type of the first organic matter in the first treated water body and the ammonia nitrogen content in the first treated water body;

[0020] Determining the addition parameters of the reaction organisms in the biological reaction unit according to the content of the first organic matter and the content of ammonia nitrogen in the first treated water body;

[0021] The first treated water body is subjected to adsorption treatment, mixing and decomposition treatment by the reaction organisms in the biological reaction unit.

[0022] Optionally, the second treated water body or the first treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body, comprising:

[0023] Determining an oxidant for oxidation treatment according to the second organic matter in the second treated water body or the first treated water body;

[0024] determining a precipitant according to the metal ions in the second treated water body or the first treated water body;

[0025] The second organic matter in the second treated water body or the first treated water body is subjected to oxidation and degradation treatment by the oxidant to obtain an oxidation transition water body;

[0026] The oxidation transition water body is subjected to precipitation treatment by means of a precipitant to obtain a target water body.

[0027] An embodiment of the present invention further provides a sewage treatment system, comprising:

[0028] An acquisition unit, used for acquiring sewage to be treated;

[0029] A pretreatment unit, used for filtering the sewage to be treated to obtain a first treated water body; the pretreatment unit includes a grid device and a grit chamber;

[0030] an outlet water detection unit, configured to detect and process the first treated water body through the outlet water detection unit according to the detection standard of the target water body, and determine a to-be-processed procedure of the first treated water body;

[0031] A biological reaction unit, used for biologically treating the first treated water body to obtain a second treated water body or a target water body;

[0032] The deep treatment unit is used to perform oxidation treatment on the first treated water body or the second treated water body to obtain a target water body.

[0033] An embodiment of the present invention further provides a computing device, comprising: a processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the above-mentioned sewage treatment method is executed.

[0034] An embodiment of the present invention further provides a computer-readable storage medium, comprising: storing instructions, which, when executed on a computer, enable the computer to execute the above-mentioned sewage treatment method.

[0035] The above solution of the present invention includes at least the following beneficial effects:

[0036] The sewage treatment method of the present invention obtains sewage to be treated; a pretreatment unit filters the sewage to be treated to obtain a first treated water body; the pretreatment unit includes a grid device and a grit chamber; according to the detection standard of the target water body, the first treated water body is detected and treated by the effluent detection unit to determine the to-be-treated procedure of the first treated water body; according to the to-be-treated procedure of the first treated water body, the first treated water body is biologically treated by the biological reaction unit and / or the first treated water body is oxidized by the deep treatment unit to obtain the target water body. The purification efficiency of the sewage to be treated is improved, while the amount of by-products, energy consumption and production costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic flow diagram of the sewage treatment method of the present invention;

[0038] Figure 2 It is a structural schematic diagram of the sewage treatment system of the present invention. DETAILED DESCRIPTION

[0039] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0040] like Figure 1 As shown, an embodiment of the present invention provides a sewage treatment method, which is applied to a sewage treatment system, wherein the sewage treatment system includes a pretreatment unit, a biological reaction unit, a deep treatment unit, and an effluent detection unit, and the method includes:

[0041] Step 11, obtaining sewage to be treated;

[0042] Step 12, filtering the wastewater to be treated through a pretreatment unit to obtain a first treated water body; the pretreatment unit includes a grid device and a grit chamber;

[0043] Step 13, according to the detection standard of the target water body, the first treated water body is detected and processed by the water outlet detection unit to determine the to-be-processed procedure of the first treated water body;

[0044] Step 14, according to the to-be-treated procedure of the first treated water body, biologically treat the first treated water body through a biological reaction unit and / or oxidize the first treated water body through a deep treatment unit to obtain a target water body.

[0045] Wherein, the detection standard of the target water body includes: at least one of the first organic matter content, the second organic matter content, the ammonia nitrogen content and the metal ion content.

[0046] In this embodiment, the effluent detection unit can also be used to monitor and detect the purified target water body in real time to ensure that the effluent water quality meets the relevant standards and requirements. The effluent detection unit may include online monitoring equipment and offline detection equipment, etc.; through the combination of online monitoring and offline detection, it is possible to achieve real-time monitoring of the effluent water quality and automatic adjustment of the control strategy, which can achieve comprehensive monitoring and evaluation of the effluent water quality, while improving the intelligence level of the equipment. In this embodiment, the sewage treatment method solves the problems of low purification efficiency, high energy consumption, and many by-products in the existing water purification process by filtering, biological treatment, oxidation treatment, and first detection and then treatment of the sewage to be treated. The purification efficiency of the sewage to be treated is improved, while the number of by-products, energy consumption, and production costs are reduced.

[0047] In an optional embodiment of the present invention, step 12 may include:

[0048] Step 121, filtering the wastewater to be treated through the grid device to obtain filtered water;

[0049] Step 122, performing sedimentation treatment on the filtered water body through the grit chamber to obtain a first treated water body.

[0050] In this embodiment, step 12 specifically involves introducing the sewage to be treated into the sewage treatment system, which is usually collected by pipes or pumping; then a screen device is set, which includes a coarse screen and a fine screen; coarse screen: first, the sewage to be treated flows through the coarse screen, which can remove larger solid matter (such as branches, plastics, etc.) to prevent damage to subsequent equipment; fine screen: after passing through the coarse screen, the sewage enters the fine screen to further remove smaller solid particles; after filtration treatment, the filtered water body obtained is relatively clear and most of the solid impurities are removed; then sedimentation treatment is carried out, and the filtered water body is introduced into the sand settling tank, where the sewage is left to stand for a period of time; sedimentation process: due to gravity, heavier particles in the water (such as sand and sediment) will gradually settle to the bottom to form a sedimentation layer; supernatant collection: after sedimentation is completed, the sediment at the bottom of the pool is regularly removed, and the upper clear water (the first treated water body) is collected through an overflow port or an extraction device to obtain To the first treated water body, after the first treated water body is subjected to sedimentation treatment, the obtained first treated water body is relatively clean, and the suspended matter and sediment have been greatly reduced, and can be used for subsequent treatment processes (such as biological treatment, chemical treatment, etc.), or discharged as needed; regular inspections are also required during use: the grille device and the grit chamber are regularly inspected and maintained to ensure the normal operation of the equipment; sedimentation treatment: the sediment at the bottom of the grit chamber is regularly cleaned to prevent it from being overfilled and affecting the treatment effect; in this embodiment, the grille device can filter out large particles and suspended matter in the water, such as sand and gravel, through its grid structure; the grille device can effectively remove mechanical pollutants in the water to obtain a relatively clean filtered water body; the grit chamber can allow the sediment to settle naturally through the inclined design and sedimentation layer at the bottom, and the fine particles and other precipitated pollutants in the filtered water can be further removed through the grit chamber to obtain a relatively clean first treated water body.

[0051] In an optional embodiment of the present invention, step 13 may include:

[0052] Step 131, if the first organic matter content or the ammonia nitrogen content of the first treated water body in the detection and treatment result is greater than the first preset value, and the second organic matter content or the metal ion content is greater than the second preset value, the first treated water body is subjected to biological treatment by a biological reaction unit to obtain a second treated water body; the second treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body;

[0053] Step 132, if the first organic matter content or the ammonia nitrogen content of the first treated water body in the detection treatment result is greater than the first preset value, and the second organic matter content and the metal ion content are both less than the second preset value, the first treated water body is biologically treated by a biological reaction unit to obtain a second treated water body, and the second treated water body is output as a target water body;

[0054] Step 133, if the first organic matter content and ammonia nitrogen content of the first treated water body in the detection and treatment results are both less than the first preset value, and the second organic matter content or the metal ion content is greater than the second preset value, the first treated water body is oxidized by a deep treatment unit to obtain the target water body.

[0055] In this embodiment, by detecting and treating the first treated water body and determining the treatment procedures of the first treated water body based on the detection results, some unnecessary procedures can be reduced, thereby effectively improving the overall purification efficiency of the treated sewage, thereby reducing energy consumption and production costs.

[0056] In an optional embodiment of the present invention, biological treatment of the first treated water body is performed by a biological reaction unit, comprising:

[0057] Step 1311, determining the type of the reaction organism in the biological reaction unit according to the type of the first organic matter in the first treated water body and the ammonia nitrogen content in the first treated water body;

[0058] Step 1312, determining the addition parameters of the reaction organisms in the biological reaction unit according to the content of the first organic matter and the content of ammonia nitrogen in the first treated water body;

[0059] Step 1313, the first treated water body is subjected to adsorption treatment and mixed decomposition treatment by the reaction organisms in the biological reaction unit.

[0060] In this embodiment, the first organic matter is an easily degradable organic matter. In the sewage treatment process, common microorganisms (reacting organisms) include bacteria, fungi and protozoa. The first treated water body is subjected to adsorption treatment by the reacting organisms (microorganisms) in the biological reaction unit. The first treated water body is mainly subjected to adsorption treatment according to the cell surface characteristics. Since the cell wall of microorganisms usually carries a negative charge, it can adsorb positively charged organic substances (first organic matter). At the same time, in the biological reaction unit, microorganisms will form a biofilm. The microorganisms in the biofilm adsorb organic matter in the water by physical adsorption and chemical adsorption. Step 1311 is specifically that if the water body mainly contains biodegradable organic matter, such as sugars, proteins and fats, the microorganisms usually selected include: aerobic bacteria: such as Bacillus spp., Pseudomonas spp.), which can decompose organic matter under aerobic conditions; anaerobic bacteria: such as acid-producing bacteria (such as lactic acid bacteria) and methanogens (Methanogens), which are suitable for anaerobic digestion processes; when the ammonia nitrogen content is high, ammonia oxidizing bacteria (AOB) are usually selected: such as Nitrosomonas spp., which are used to oxidize ammonia nitrogen (NH3) to nitrite (NO2- ); Nitrite oxidizing bacteria (NOB): such as Nitrosomonas spp., used to oxidize nitrite to nitrate (NO3 - ); when ammonia nitrogen levels are low, specialized ammonia-oxidizing bacteria may not be needed and naturally existing microbial communities can often be relied upon;

[0061] Step 1312 is specifically to determine the COD (chemical oxygen demand) value in the first treated water body. COD is an important indicator for measuring the content of organic matter in water. Assuming that the COD is 500 mg / L, it means that there is a certain amount of biodegradable organic matter in the water. The ammonia nitrogen content is determined. Assuming that the ammonia nitrogen content is 40 mg / L, it is a medium to high level, and effective ammonia oxidation and nitrite oxidation processes are required to remove the ammonia nitrogen. According to the concentration of organic matter and ammonia nitrogen, suitable microorganisms are selected: aerobic bacteria (such as Pseudomonas and Bacillus) are used to degrade organic matter. Ammonia oxidizing bacteria (such as Nitrosomonas spp.) are used to oxidize ammonia nitrogen into nitrite; nitrite oxidizing bacteria (such as Nitrobacter spp.) are used to oxidize nitrite into nitrate; Determine the addition parameters of microorganisms (addition parameters of reaction organisms), taking the addition of a certain amount of inoculum per cubic meter of sewage as an example, the following are the specific steps: Determine the inoculum amount: Usually, the inoculum amount is between 1% and 5%, depending on the water quality and reaction conditions; for example, the inoculum amount is selected to be 3%; Calculate the inoculum amount: If the volume of the sewage treatment unit is 1000L (1m 3 ), then you need to add: inoculum volume = sewage volume × inoculum ratio = 1000L × 3% = 30L; this 30L can be a culture solution containing activated sludge, which contains the required ammonia oxidizing bacteria and aerobic bacteria; at the same time, you can also add a preset amount of nutrients: add an appropriate amount of nitrogen, phosphorus and other nutrients according to the nutritional needs of the water body to support the growth of microorganisms; assuming that 0.5mg / L of phosphate (P) is added to each liter of sewage, then for 1000L of sewage: total phosphate amount = 1000L × 0.5mg / L = 500mg;

[0062] In this embodiment, the decomposition treatment of the first treated water body specifically includes: degradation of organic matter and removal of ammonia nitrogen; wherein, microorganisms decompose organic matter adsorbed on their surfaces into simpler compounds through metabolism; for example, glycolysis: microorganisms decompose organic matter (such as sugars) into pyruvate through glycolysis and release energy; tricarboxylic acid cycle (TCA cycle): pyruvate enters the TCA cycle and is further oxidized to release carbon dioxide and energy; anaerobic decomposition: under anaerobic conditions, anaerobic microorganisms convert organic matter into methane, carbon dioxide and other small molecules; aerobic decomposition: under aerobic conditions, aerobic microorganisms oxidize and decompose organic matter to generate carbon dioxide, water and cellular substances; removal of ammonia nitrogen includes: conversion of ammonia nitrogen: ammonia nitrogen (NH3-N) can be converted into nitrate (NO3 - ), a process called nitrification; specifically, the first step: ammonia-oxidizing bacteria (such as Nitrosomonas) oxidize ammonia nitrogen into nitrite (NO2 - ); Step 2: Another type of bacteria (such as Nitrobacter) further oxidizes nitrite to nitrate; specifically, nitrification can be carried out first to oxidize ammonia to obtain nitrite ions, then nitrite is oxidized, and finally denitrification is carried out to remove nitrogen from the water; denitrification refers to the fact that under anaerobic conditions, some microorganisms (such as Pseudomonas) can reduce nitrate to nitrogen gas (N2), thereby removing nitrogen from the water.

[0063] In this embodiment, when the first treated water body is subjected to adsorption treatment and mixed decomposition treatment by the reaction organisms in the biological reaction unit, it is also necessary to pay attention to the real-time detection of basic data of the environment in the biological reaction unit, such as temperature and pH: the activity of microorganisms is affected by temperature and pH, and the growth and metabolism of microorganisms are usually most active under warm (20-30°C) and neutral to slightly alkaline (pH 6.5-8.5) conditions; dissolved oxygen: aerobic microorganisms require sufficient dissolved oxygen to maintain their metabolic process, so sufficient oxygen needs to be provided by a blower or an oxygen generator; at the same time, the selection of microorganisms in the mixed solution: by adjusting the reaction conditions (such as the addition of nutrients, temperature and oxygen concentration, etc.), a suitable microbial community can be selected to improve the removal efficiency; sludge age control: by controlling the sludge age (the residence time of the activated sludge in the reactor), the appropriate microbial concentration is maintained to optimize the removal effect of organic matter and ammonia nitrogen;

[0064] In this embodiment, the first treated water body treated by the pretreatment unit is sent to the biological reaction unit, and pollutants such as organic matter and ammonia nitrogen in the water are removed through the adsorption and decomposition of microorganisms. The biological reaction unit adopts a modular design, and the number and combination of modules can be adjusted according to water quality conditions and treatment requirements. In the biological reaction unit, by adding appropriate amounts of nutrients and oxygen and other conditional factors, the growth and metabolic activities of microorganisms are promoted, and the purification efficiency is improved; the use of biological methods as the main purification method reduces the use of chemical agents and the production of by-products, thereby reducing pollution and damage to the environment.

[0065] In an optional embodiment of the present invention, the second treated water body or the first treated water body is subjected to oxidation treatment by a deep treatment unit to obtain the target water body, which includes:

[0066] Step 1321, determining an oxidant for oxidation treatment according to the second organic matter in the second treated water body or the first treated water body;

[0067] Step 1322, determining a precipitant according to the metal ions in the second treated water body or the first treated water body;

[0068] Step 1323, performing oxidation degradation treatment on the second organic matter in the second treated water body or the first treated water body by using the oxidant to obtain an oxidation transition water body;

[0069] Step 1324, treating the oxidation transition water body with a precipitant to obtain a target water body.

[0070] In this embodiment, the second organic matter is a difficult-to-degrade organic matter; the difficult-to-degrade organic matter includes: petroleum hydrocarbons: such as gasoline, diesel, lubricating oil, etc.; synthetic detergents: such as surfactants, phosphate esters, etc.; pesticide and fertilizer residues: such as organophosphorus pesticides, nitrogen fertilizers, etc.; plastics and polymers: such as polyethylene, polypropylene, etc.; step 1321 specifically determines the oxidant according to the degree of difficulty in degradation of the second organic matter or actual needs, and the oxidant includes ozone, which uses the strong oxidizing property of ozone to degrade organic matter; hydroxyl radicals: hydroxyl radicals are generated by the reaction of hydrogen peroxide and iron salts, which are suitable for treating sewage containing difficult-to-degrade organic matter; titanium dioxide: photocatalyst titanium dioxide is used to degrade organic matter under light; the precipitant in step 1322 can be selected according to the type of metal ions in the second treated water body or the first treated water body, the purpose is to convert the metal ions into precipitates and then remove them through filtration, and the precipitant can include sodium hydroxide, sodium sulfide, etc.; at the same time, the surface adsorption characteristics of the adsorbent (activated carbon) can be used to remove heavy metal ions in water;

[0071] In this embodiment, the first treated water body or the second treated water body is sent to a deep treatment unit, and pollutants such as difficult-to-degrade organic matter and heavy metal ions in the water are removed through advanced oxidation technology, activated carbon adsorption and other technologies to improve the water quality of the effluent. The deep treatment unit can adopt an automated control system to achieve precise control and optimization of treatment efficiency. At the same time, appropriate deep treatment processes and equipment can be selected according to the requirements of the effluent water quality.

[0072] The sewage treatment method of the present invention can achieve comprehensive purification and deep treatment of polluted water bodies by adopting multiple purification means such as biological treatment, oxidation treatment and process design of first detection and then treatment, thereby improving purification efficiency, reducing energy consumption and cost, and having the advantages of high efficiency, environmental protection, and economy. The biological method is adopted as the main purification means, which reduces the use of chemical agents and the generation of by-products, and reduces pollution and damage to the environment. The equipment has a simple structure and is easy to operate and maintain, which reduces operating costs and investment costs. At the same time, modular design and automatic detection design are adopted to improve the flexibility and reliability of the equipment and improve the intelligence of the sewage treatment process.

[0073] like Figure 2 As shown, the embodiment of the present invention further provides a sewage treatment system 20, comprising:

[0074] An acquisition unit 21 is used to acquire sewage to be treated;

[0075] A pre-treatment unit 22 is used to filter the sewage to be treated to obtain a first treated water body; the pre-treatment unit includes a grid device and a grit chamber;

[0076] The water outlet detection unit 23 is used to detect and process the first treated water body through the water outlet detection unit according to the detection standard of the target water body, and determine the to-be-processed procedure of the first treated water body;

[0077] A biological reaction unit 24 is used to perform biological treatment on the first treated water body to obtain a second treated water body or a target water body;

[0078] The deep treatment unit 25 is used to perform oxidation treatment on the first treated water body or the second treated water body to obtain a target water body.

[0079] Optionally, the detection standard of the target water body includes: at least one of a first organic matter content, a second organic matter content, an ammonia nitrogen content, and a metal ion content.

[0080] Optionally, filtering the wastewater to be treated by a pretreatment unit to obtain a first treated water body includes:

[0081] The sewage to be treated is filtered through the grid device to obtain filtered water;

[0082] The filtered water body is subjected to sedimentation treatment in the grit chamber to obtain a first treated water body.

[0083] Optionally, according to the discharge standard of the target water body, the first treated water body is detected and processed by a water outlet detection unit to determine the to-be-processed procedure of the first treated water body, including:

[0084] If the first organic matter content or ammonia nitrogen content of the first treated water body in the detection and treatment result is greater than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is subjected to biological treatment by a biological reaction unit to obtain a second treated water body; the second treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body;

[0085] If the first organic matter content or the ammonia nitrogen content of the first treated water body in the detection treatment result is greater than the first preset value, and the second organic matter content and the metal ion content are both less than the second preset value, the first treated water body is biologically treated by the biological reaction unit to obtain a second treated water body, and the second treated water body is output as the target water body;

[0086] If the first organic matter content and ammonia nitrogen content of the first treated water body in the detection and treatment results are both less than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is oxidized by a deep treatment unit to obtain the target water body.

[0087] Optionally, biological treatment of the first treated water body is performed by a biological reaction unit, comprising:

[0088] Determining the type of the reaction organism in the biological reaction unit according to the type of the first organic matter in the first treated water body and the ammonia nitrogen content in the first treated water body;

[0089] Determining the addition parameters of the reaction organisms in the biological reaction unit according to the content of the first organic matter and the content of ammonia nitrogen in the first treated water body;

[0090] The first treated water body is subjected to adsorption treatment, mixing and decomposition treatment by the reaction organisms in the biological reaction unit.

[0091] Optionally, the second treated water body or the first treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body, comprising:

[0092] Determining an oxidant for oxidation treatment according to the second organic matter in the second treated water body or the first treated water body;

[0093] determining a precipitant according to the metal ions in the second treated water body or the first treated water body;

[0094] The second organic matter in the second treated water body or the first treated water body is subjected to oxidation and degradation treatment by the oxidant to obtain an oxidation transition water body;

[0095] The oxidation transition water body is subjected to precipitation treatment by means of a precipitant to obtain a target water body.

[0096] It should be noted that the device is a system corresponding to the above method, and all implementation methods in the above method are applicable to the embodiments of the device and can achieve the same technical effects.

[0097] The embodiment of the present invention further provides a computing device, comprising: a processor and a memory storing a computer program, wherein the computer program executes the above method when executed by the processor. All implementations in the above method embodiment are applicable to this embodiment and can achieve the same technical effect.

[0098] The embodiment of the present invention also provides a computer-readable storage medium storing instructions, which, when executed on a computer, enable the computer to execute the above method. All implementations in the above method embodiments are applicable to this embodiment and can achieve the same technical effect.

[0099] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0100] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0101] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0102] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0104] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0105] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0106] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0107] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A sewage treatment method, characterized in that: Applied to a sewage treatment system, the sewage treatment system includes a pretreatment unit, a biological reaction unit, a deep treatment unit and an effluent detection unit, and the method includes: Obtaining sewage for treatment; The sewage to be treated is filtered through a pretreatment unit to obtain a first treated water body; the pretreatment unit includes a grid device and a grit chamber; According to the detection standard of the target water body, the first treated water body is detected and processed by the water outlet detection unit to determine the to-be-processed procedure of the first treated water body; According to the to-be-treated procedure of the first treated water body, the first treated water body is subjected to biological treatment through a biological reaction unit and / or is subjected to oxidation treatment through a deep treatment unit to obtain a target water body.

2. The sewage treatment method according to claim 1, characterized in that: The detection standard of the target water body includes: at least one of the first organic matter content, the second organic matter content, the ammonia nitrogen content and the metal ion content.

3. The sewage treatment method according to claim 1, characterized in that: The sewage to be treated is filtered through a pretreatment unit to obtain a first treated water body, including: The sewage to be treated is filtered through the grid device to obtain filtered water; The filtered water body is subjected to sedimentation treatment in the grit chamber to obtain a first treated water body.

4. The sewage treatment method according to claim 1, characterized in that: According to the discharge standard of the target water body, the first treated water body is detected and processed by the water outlet detection unit to determine the to-be-processed procedure of the first treated water body, including: If the first organic matter content or ammonia nitrogen content of the first treated water body in the detection and treatment result is greater than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is subjected to biological treatment by a biological reaction unit to obtain a second treated water body; the second treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body; If the first organic matter content or the ammonia nitrogen content of the first treated water body in the detection treatment result is greater than the first preset value, and the second organic matter content and the metal ion content are both less than the second preset value, the first treated water body is biologically treated by the biological reaction unit to obtain a second treated water body, and the second treated water body is output as the target water body; If the first organic matter content and ammonia nitrogen content of the first treated water body in the detection and treatment results are both less than the first preset value, and the second organic matter content or metal ion content is greater than the second preset value, the first treated water body is oxidized by a deep treatment unit to obtain the target water body.

5. The sewage treatment method according to claim 4, characterized in that: The first treatment water body is subjected to biological treatment by a biological reaction unit, comprising: Determining the type of the reaction organism in the biological reaction unit according to the type of the first organic matter in the first treated water body and the ammonia nitrogen content in the first treated water body; Determining the addition parameters of the reaction organisms in the biological reaction unit according to the content of the first organic matter and the content of ammonia nitrogen in the first treated water body; The first treated water body is subjected to adsorption treatment, mixing and decomposition treatment by the reaction organisms in the biological reaction unit.

6. The sewage treatment method according to claim 4, characterized in that: The second treated water body or the first treated water body is subjected to oxidation treatment by a deep treatment unit to obtain a target water body, comprising: Determining an oxidant for oxidation treatment according to the second organic matter in the second treated water body or the first treated water body; determining a precipitant according to the metal ions in the second treated water body or the first treated water body; The second organic matter in the second treated water body or the first treated water body is subjected to oxidation and degradation treatment by the oxidant to obtain an oxidation transition water body; The oxidation transition water body is subjected to precipitation treatment by means of a precipitant to obtain a target water body.

7. A sewage treatment system, characterized in that: include: An acquisition unit, used for acquiring sewage to be treated; A pre-treatment unit, used for filtering the sewage to be treated to obtain a first treated water body; The pre-treatment unit includes a grid device and a grit chamber; an outlet water detection unit, configured to detect and process the first treated water body through the outlet water detection unit according to the detection standard of the target water body, and determine a to-be-processed procedure of the first treated water body; A biological reaction unit, used for biologically treating the first treated water body to obtain a second treated water body or a target water body; The deep treatment unit is used to perform oxidation treatment on the first treated water body or the second treated water body to obtain a target water body.

8. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 6 is executed.

9. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 6.

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