Wastewater treatment system based on water resource recycling

Abstract

The invention relates to the technical field of environmental engineering and water treatment, and discloses a water resource recycling-based wastewater treatment system, which comprises a monitoring module, a data receiving module, a data processing module, a control module and an emergency treatment module, calculating a removal efficiency value Q1 of each stage and a content value Szvl of trace harmful substances and novel pollutants after advanced sewage treatment according to the information acquired by the control module from the data processing module; a calculation formula is used for calculating a result, the control module makes judgment and optimizes result data, the control module feeds back the optimized data to the emergency processing module, the emergency processing module transmits information to the data processing module, and the data processing module readjusts parameters of all the processing modules according to the optimized data. The closed-loop control mechanism ensures that the treatment system can stably operate under various environmental conditions, improves the dirt-removing power and ensures the safety and consistency of water quality by increasing the filter screen level, the coagulant amount and the ultraviolet intensity.

Description

Technical Field

[0001] The invention relates to the technical field of environmental engineering and water treatment, and in particular to a wastewater treatment system based on the recycling of water resources. Background Art

[0002] With the growth of global population and the rapid development of industrialization, the demand for water resources is increasing, while the available freshwater resources are very limited. At the same time, water pollution is becoming increasingly prominent, which not only damages the health of the ecosystem, but also poses a threat to human drinking water safety. Therefore, the development and utilization of non-traditional water resources, especially the regeneration and reuse of urban sewage, has become a key way to solve these problems.

[0003] In this context, a wastewater treatment system based on the recycling of water resources came into being and gradually developed and improved. The core concept of this system is to use efficient physical, chemical and biological treatment methods to deeply purify wastewater so that it can be safely reused. This will not only help alleviate the pressure of water shortage, but also reduce environmental pollution and achieve the dual goals of economic development and environmental protection. Under the guidance of the "dual carbon" goal - achieving carbon peak and carbon neutrality, the recycling of wastewater is regarded as an important means to promote systematic changes in the economy and society. By promoting the use of recycled water, we can reduce dependence on fresh water resources, reduce energy consumption and carbon emissions, and thus support the goal of sustainable development.

[0004] However, wastewater treatment systems based on water resource recycling also have some technical challenges and limitations. Existing sewage treatment technologies may not be able to completely remove all harmful substances, especially some trace pollutants and new pollutants, which may affect the safety and availability of recycled water. In addition, extreme climate events such as heavy rainfall and typhoons may cause a sharp increase in raw water turbidity, affecting the normal operation and treatment effect of sewage treatment facilities. Although recycled water can be used for ecological replenishment, there may be potential impacts on the receiving water ecosystem in actual operation, which requires careful evaluation and management.

[0005] In general, despite the above challenges, wastewater treatment systems based on water recycling are still an effective way to solve the problem of water shortage. Through technological innovation and continuous improvement, it is expected to overcome the existing shortcomings and achieve more sustainable and efficient water resource management. Summary of the invention

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the prior art, the present invention provides a wastewater treatment system based on the recycling of water resources, which has the advantages of improved pollution removal capacity and no environmental impact, and solves the problems of removal of trace pollutants and new pollutants and the impact of extreme climate events.

[0008] (II) Technical solution

[0009] To achieve the above object, the present invention provides the following technical solution: comprising a monitoring module, a data receiving module, a data processing module, a control module and an emergency processing module;

[0010] The monitoring module is used to monitor the real-time information of each module and store historical information;

[0011] The data receiving module is used to receive real-time information from the monitoring module and transmit the data to the data processing module;

[0012] The data processing module is used to analyze and process the information obtained from the data receiving module;

[0013] The data processing module is composed of a pre-processing unit, a processing unit and a recycled water reuse unit;

[0014] The pretreatment unit is used for preliminary removal of suspended solids, grease and sand in the grit chamber. The pretreatment unit obtains the inlet and outlet wastewater data in the grit chamber through real-time information from the monitoring module. The inlet and outlet wastewater data in the grit chamber include: the inlet pollutant concentration As of the grit chamber and the outlet pollutant concentration Ar of the grit chamber;

[0015] The processing unit includes a physical treatment sewage pool, a biochemical treatment sewage pool, a chemical treatment sewage pool and a deep treatment sewage pool. The processing unit obtains wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool through real-time information of the monitoring module. The wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool include: the pollutant concentration Bz of the physical treatment sewage pool, the pollutant concentration By of the biochemical treatment sewage pool, the pollutant concentration Bx of the chemical treatment sewage pool and the pollutant concentration Bo of the deep treatment sewage pool;

[0016] The reclaimed water reuse unit includes agricultural irrigation water, urban greening water and industrial cooling water, and is used to recycle purified sewage;

[0017] The reclaimed water reuse unit performs data set numbering according to the real-time information monitored by the monitoring module. The reclaimed water reuse unit obtains wastewater data in agricultural irrigation water, urban greening water and industrial cooling water through the real-time information of the monitoring module. The wastewater data sets of agricultural irrigation water, urban greening water and industrial cooling water include: a concentration set Ce of trace harmful substances and new pollutants in agricultural irrigation water, a concentration set Cd of trace harmful substances and new pollutants in urban greening water and a concentration set Cp of trace harmful substances and new pollutants in industrial cooling water;

[0018] The control module calculates the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage from the information obtained by the data processing module; the result is calculated using the calculation formula, and the control module makes a judgment and optimizes the result data. The control module feeds back the optimized data to the emergency processing module, and the emergency processing module transmits the information to the data processing module. The data processing module readjusts the parameters of each processing module according to the optimized data, including increasing the filter level, coagulant dosage and ultraviolet intensity;

[0019] The emergency processing module is used to process the abnormal data of the control module. When the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage exceed the normal indicators, the emergency processing module transmits the information to the monitoring module, and the source of the abnormal data is found by the monitoring information.

[0020] Preferably, the calculation formula of the removal efficiency value Qla of the pretreatment unit is:

[0021]

[0022] In the formula: Qla is the removal efficiency value of the pretreatment unit; As is the pollutant concentration of the grit chamber inlet; Ar is the pollutant concentration of the grit chamber effluent; c is the constant value affected by pH, temperature, oxidant and catalyst concentration in the grit chamber.

[0023] Preferably, the calculation formula of the treatment unit removal efficiency value Qlb is:

[0024]

[0025] In the formula: Qlb is the removal efficiency value of the treatment unit; Ar is the pollutant concentration of the effluent from the grit chamber; Bo is the pollutant concentration of the deep treatment sewage pool; d is the constant value affected by pH, temperature, oxidant and catalyst concentration in the deep treatment sewage pool.

[0026] Preferably, in the treatment unit, the sewage is treated in the sewage pool in the order of physical treatment, biochemical treatment, chemical treatment and deep treatment, and the treatment method of the treatment unit is as follows:

[0027] S1.1, Physical treatment of sewage pool: Remove suspended solids, particulate matter and grease through physical methods of sedimentation, filtration and flotation;

[0028] S1.2, Biochemical treatment of sewage pool: using microorganisms to degrade organic pollutants and convert them into carbon dioxide and water;

[0029] S1.3, Chemical treatment sewage pool: Add chemical agents to remove heavy metal ions, phosphorus and nitrogen in sewage;

[0030] S1.4, Deep treatment sewage pool: Use ultraviolet disinfection to remove residual trace pollutants.

[0031] Preferably, the calculation formula of the physical treatment sewage pool removal efficiency value Qlz is:

[0032]

[0033] In the formula: Qlz is the removal efficiency value of the physical treatment sewage pool; Ar is the pollutant concentration of the effluent from the grit chamber; Bz is the pollutant concentration of the physical treatment sewage pool; r is the constant value affected by pH, temperature, oxidant and catalyst concentration in the physical treatment sewage pool.

[0034] Preferably, the calculation formula of the removal efficiency value Qly of the biochemical treatment sewage pool is:

[0035]

[0036] In the formula: Qly is the removal efficiency value of the biochemical treatment sewage pool; Bz is the pollutant concentration in the physical treatment sewage pool; By is the pollutant concentration in the biochemical treatment sewage pool; e is the constant value affected by pH, temperature, oxidant and catalyst concentration in the biochemical treatment sewage pool.

[0037] Preferably, the calculation formula of the removal efficiency value Qlx of the chemical treatment sewage pool is:

[0038]

[0039] In the formula: Qlx is the removal efficiency value of the chemical treatment sewage pool; By is the pollutant concentration in the biochemical treatment sewage pool; Bx is the pollutant concentration in the chemical treatment sewage pool; t is the constant value affected by pH, temperature, oxidant and catalyst concentration in the chemical treatment sewage pool.

[0040] Preferably, the calculation formula of the deep sewage treatment tank removal efficiency value Qlo and the treatment unit removal efficiency value Qlb is the same.

[0041] Preferably, the content value Szvl of the trace harmful substances and new pollutants is obtained by the concentration set Ce1, Ce2, Ce3, ...Ce of the trace harmful substances and new pollutants in the agricultural irrigation water in the reclaimed water reuse unit. n1 ; Concentration of trace harmful substances and new pollutants in urban greening water Cd1, Cd2, Cd3, ...Cd n2 And the concentration of trace harmful substances and new pollutants in industrial cooling water is Cp1, Cp2, Cp3, ...Cp n3 The average value is calculated using the formula:

[0042]

[0043] In the formula, Szvl is the content of trace harmful substances and new pollutants; n1 is the total number of times agricultural irrigation water is used; n2 is the total number of times urban greening water is used; n3 is the total number of times industrial cooling water is used; ∑Ce n1 The concentration of trace harmful substances and new pollutants in agricultural irrigation water; ∑Cd n2 The concentration and value of trace harmful substances and new pollutants in urban greening water; ∑Cp n3 The concentrations of trace harmful substances and new pollutants in industrial cooling water.

[0044] Preferably, the wastewater treatment steps in the reclaimed water reuse unit are as follows;

[0045] S2.1, wastewater undergoes different treatment processes depending on its intended use;

[0046] S2.2, wastewater is adsorbed by activated carbon to remove the remaining organic matter or treated with ozone to oxidize and decompose the refractory substances.

[0047] S2.3. The treated wastewater is combined with hydrogen peroxide and ultraviolet light for advanced oxidation process and stored for use as agricultural irrigation water, urban greening water or industrial cooling water.

[0048] Compared with the prior art, the present invention provides a wastewater treatment system based on water resource recycling, which has the following beneficial effects:

[0049] 1. The present invention calculates the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage through the information obtained by the control module from the data processing module; the result is calculated using the calculation formula, and the control module makes a judgment and optimizes the result data. The control module feeds back the optimized data to the emergency processing module, and the emergency processing module transmits the information to the data processing module. The data processing module readjusts the parameters of each processing module according to the optimized data, including increasing the filter level, coagulant dosage and ultraviolet intensity. Such a closed-loop control mechanism ensures that the treatment system can operate stably under various environmental conditions, while improving the decontamination ability and ensuring the safety and consistency of water quality.

[0050] 2. The present invention uses an emergency processing module to process abnormal data of the control module. When the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage exceed normal indicators, the emergency processing module transmits information to the monitoring module, and the source of the abnormal data is found by monitoring information. Through the information search function of the monitoring module, the operator can quickly locate the specific link where the problem occurs, which helps to accurately diagnose the cause of the problem, so as to take targeted solutions and achieve the beneficial effect of effectively solving the problem.

[0051] 3. The advantages of the recycled water reuse unit of the present invention are: efficient resource utilization: wastewater is converted into recycled water for agricultural irrigation, urban greening and industrial cooling. This approach makes full use of existing water resources, reduces dependence on fresh water sources, and avoids waste of water resources; environmental protection: through activated carbon adsorption, ozone treatment and advanced oxidation process of hydrogen peroxide combined with ultraviolet light, it can effectively remove organic matter, difficult-to-degrade substances and microorganisms in wastewater, which not only reduces the emission of pollutants, protects the water environment, but also avoids potential health risks; improved economic benefits: the use of recycled water reduces the water bill expenditure of enterprises and cities, especially in industrial uses, such as cooling water and washing water, which can reduce the demand for fresh water resources, and achieve the beneficial effects of efficient resource utilization, environmental protection, improved economic benefits and improved safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the present invention; DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1 , including a monitoring module, a data receiving module, a data processing module, a control module and an emergency processing module;

[0055] The monitoring module is used to monitor the real-time information of each module and store historical information;

[0056] The data receiving module is used to receive real-time information from the monitoring module and transmit the data to the data processing module;

[0057] The data processing module is used to analyze and process the information obtained from the data receiving module;

[0058] The data processing module is composed of a pre-processing unit, a processing unit and a recycled water reuse unit;

[0059] The pretreatment unit is used for preliminary removal of suspended solids, grease and sand in the grit chamber. The pretreatment unit obtains the inlet and outlet wastewater data in the grit chamber through real-time information from the monitoring module. The inlet and outlet wastewater data in the grit chamber include: the inlet pollutant concentration As of the grit chamber and the outlet pollutant concentration Ar of the grit chamber;

[0060] The processing unit includes a physical treatment sewage pool, a biochemical treatment sewage pool, a chemical treatment sewage pool and a deep treatment sewage pool. The processing unit obtains wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool through real-time information of the monitoring module. The wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool include: the pollutant concentration Bz of the physical treatment sewage pool, the pollutant concentration By of the biochemical treatment sewage pool, the pollutant concentration Bx of the chemical treatment sewage pool and the pollutant concentration Bo of the deep treatment sewage pool;

[0061] The reclaimed water reuse unit includes agricultural irrigation water, urban greening water and industrial cooling water, and is used to recycle purified sewage;

[0062] The reclaimed water reuse unit performs data set numbering according to the real-time information monitored by the monitoring module. The reclaimed water reuse unit obtains wastewater data in agricultural irrigation water, urban greening water and industrial cooling water through the real-time information of the monitoring module. The wastewater data sets of agricultural irrigation water, urban greening water and industrial cooling water include: a concentration set Ce of trace harmful substances and new pollutants in agricultural irrigation water, a concentration set Cd of trace harmful substances and new pollutants in urban greening water and a concentration set Cp of trace harmful substances and new pollutants in industrial cooling water;

[0063] The new pollutants have five characteristics: First, they are serious hazards. New pollutants are harmful to organs, nerves and reproductive development. Their production and use are often closely related to human life, and they pose risks to the ecological environment and human health. New pollutants include endocrine disruptors (EDCs), pharmaceuticals and personal care products (PPCPs), perfluorinated compounds (PFCs), brominated flame retardants (BRPs), drinking water disinfection byproducts (DBPs), nanomaterials and microplastics;

[0064] The control module calculates the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage from the information obtained by the data processing module; the result is calculated using the calculation formula, and the control module makes a judgment and optimizes the result data. The control module feeds back the optimized data to the emergency processing module, and the emergency processing module transmits the information to the data processing module. The data processing module readjusts the parameters of each processing module according to the optimized data, including increasing the filter level, coagulant dosage and ultraviolet intensity;

[0065] The emergency processing module is used to process the abnormal data of the control module. When the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage exceed the normal indicators, the emergency processing module transmits the information to the monitoring module, and the source of the abnormal data is found by the monitoring information.

[0066] The calculation formula of the removal efficiency value Qla of the pretreatment unit is:

[0067]

[0068] In the formula: Qla is the removal efficiency value of the pretreatment unit; As is the pollutant concentration of the inlet water of the grit chamber; Ar is the pollutant concentration of the effluent water of the grit chamber; c is the constant value affected by pH, temperature, oxidant and catalyst concentration in the grit chamber (the selection of the constant value mainly depends on the influence of pH, temperature, oxidant and catalyst concentration in the pretreatment sewage tank. This constant value is used to eliminate the influence of these factors on the sewage treatment efficiency), c = 1-x*f(pH)-y*g(T)-z*h(Ox)-r*i(Cat), among which f(pH), g(T), h(Ox), i(Cat) are functions of pH, temperature, oxidant and catalyst concentration, respectively, and x, y, z, r are the weighting coefficients of pH, temperature, oxidant and catalyst concentration in the constant value, respectively.

[0069] The calculation formula of the treatment unit removal efficiency value Qlb is:

[0070]

[0071] In the formula: Qlb is the removal efficiency value of the treatment unit; Ar is the pollutant concentration of the effluent from the grit chamber; Bo is the pollutant concentration of the deep treatment sewage pool; d is the constant value affected by pH, temperature, oxidant and catalyst concentration in the deep treatment sewage pool.

[0072] In the treatment unit, sewage is treated in a sewage pool in the order of physical treatment, biochemical treatment, chemical treatment and deep treatment. The treatment method of the treatment unit is as follows:

[0073] S1.1, Physical treatment of sewage pool: Remove suspended solids, particulate matter and grease through physical methods of sedimentation, filtration and flotation;

[0074] S1.2, Biochemical treatment of sewage pool: using microorganisms to degrade organic pollutants and convert them into carbon dioxide and water;

[0075] S1.3, Chemical treatment sewage pool: Add chemical agents to remove heavy metal ions, phosphorus and nitrogen in sewage;

[0076] S1.4, Deep treatment sewage pool: Use ultraviolet disinfection to remove residual trace pollutants.

[0077] The calculation formula of the physical treatment sewage pool removal efficiency value Qlz is:

[0078]

[0079] In the formula: Qlz is the removal efficiency value of the physical treatment sewage pool; Ar is the pollutant concentration of the effluent from the grit chamber; Bz is the pollutant concentration of the physical treatment sewage pool; r is the constant value affected by pH, temperature, oxidant and catalyst concentration in the physical treatment sewage pool.

[0080] The calculation formula of the removal efficiency value Qly of the biochemical treatment sewage pool is:

[0081]

[0082] In the formula: Qly is the removal efficiency value of the biochemical treatment sewage pool; Bz is the pollutant concentration in the physical treatment sewage pool; By is the pollutant concentration in the biochemical treatment sewage pool; e is the constant value affected by pH, temperature, oxidant and catalyst concentration in the biochemical treatment sewage pool.

[0083] The calculation formula of the removal efficiency value Qlx of the chemical treatment sewage pool is:

[0084]

[0085] In the formula: Qlx is the removal efficiency value of the chemical treatment sewage pool; By is the pollutant concentration in the biochemical treatment sewage pool; Bx is the pollutant concentration in the chemical treatment sewage pool; t is the constant value affected by pH, temperature, oxidant and catalyst concentration in the chemical treatment sewage pool.

[0086] The calculation formula of the removal efficiency value Qlo of the deep sewage treatment pool is the same as the removal efficiency value Qlb of the treatment unit.

[0087] The content value Szvl of the trace harmful substances and new pollutants is obtained by the concentration sets Ce1, Ce2, Ce3, ...Ce of the trace harmful substances and new pollutants in the agricultural irrigation water in the reclaimed water reuse unit. n1; Concentration of trace harmful substances and new pollutants in urban greening water Cd1, Cd2, Cd3, ...Cd n2 And the concentration of trace harmful substances and new pollutants in industrial cooling water is Cp1, Cp2, Cp3, ...Cp n3 The average value is calculated using the formula:

[0088]

[0089] In the formula, Szvl is the content of trace harmful substances and new pollutants; n1 is the total number of times agricultural irrigation water is used; n2 is the total number of times urban greening water is used; n3 is the total number of times industrial cooling water is used; ∑Ce n1 The concentration of trace harmful substances and new pollutants in agricultural irrigation water; ∑Cd n2 The concentration and value of trace harmful substances and new pollutants in urban greening water; ∑Cp n3 The concentrations of trace harmful substances and new pollutants in industrial cooling water.

[0090] The wastewater treatment steps in the reclaimed water reuse unit are as follows;

[0091] S2.1, wastewater undergoes different treatment processes depending on its intended use;

[0092] S2.2, wastewater is adsorbed by activated carbon to remove the remaining organic matter or treated with ozone to oxidize and decompose the refractory substances.

[0093] S2.3. The treated wastewater is combined with hydrogen peroxide and ultraviolet light for advanced oxidation process and stored for use as agricultural irrigation water, urban greening water or industrial cooling water.

[0094] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment system based on water resource recycling, characterized in that: It includes monitoring module, data receiving module, data processing module, control module and emergency processing module; The monitoring module is used to monitor the real-time information of each module and store historical information; The data receiving module is used to receive real-time information from the monitoring module and transmit the data to the data processing module; The data processing module is used to analyze and process the information obtained from the data receiving module; The data processing module is composed of a pre-processing unit, a processing unit and a recycled water reuse unit; The pretreatment unit is used for preliminary removal of suspended solids, grease and sand in the grit chamber. The pretreatment unit obtains the inlet and outlet wastewater data in the grit chamber through real-time information from the monitoring module. The inlet and outlet wastewater data in the grit chamber include: the inlet pollutant concentration As of the grit chamber and the outlet pollutant concentration Ar of the grit chamber; The processing unit includes a physical treatment sewage pool, a biochemical treatment sewage pool, a chemical treatment sewage pool and a deep treatment sewage pool. The processing unit obtains wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool through real-time information of the monitoring module. The wastewater data in the physical treatment sewage pool, the biochemical treatment sewage pool, the chemical treatment sewage pool and the deep treatment sewage pool include: the pollutant concentration Bz of the physical treatment sewage pool, the pollutant concentration By of the biochemical treatment sewage pool, the pollutant concentration Bx of the chemical treatment sewage pool and the pollutant concentration Bo of the deep treatment sewage pool; The reclaimed water reuse unit includes agricultural irrigation water, urban greening water and industrial cooling water, and is used to recycle purified sewage; The reclaimed water reuse unit performs data set numbering according to the real-time information monitored by the monitoring module. The reclaimed water reuse unit obtains wastewater data in agricultural irrigation water, urban greening water and industrial cooling water through the real-time information of the monitoring module. The wastewater data sets of agricultural irrigation water, urban greening water and industrial cooling water include: a concentration set Ce of trace harmful substances and new pollutants in agricultural irrigation water, a concentration set Cd of trace harmful substances and new pollutants in urban greening water and a concentration set Cp of trace harmful substances and new pollutants in industrial cooling water; The control module calculates the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage from the information obtained by the data processing module; the result is calculated using the calculation formula, and the control module makes a judgment and optimizes the result data. The control module feeds back the optimized data to the emergency processing module, and the emergency processing module transmits the information to the data processing module. The data processing module readjusts the parameters of each processing module according to the optimized data, including increasing the filter level, coagulant dosage and ultraviolet intensity; The emergency processing module is used to process the abnormal data of the control module. When the removal efficiency value Ql of each stage and the content value Szvl of trace harmful substances and new pollutants after deep treatment of sewage exceed the normal indicators, the emergency processing module transmits the information to the monitoring module, and the source of the abnormal data is found by the monitoring information.

2. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the removal efficiency value Qla of the pretreatment unit is: In the formula: Qla is the removal efficiency value of the pretreatment unit; As is the pollutant concentration in the grit chamber inlet; Ar is the pollutant concentration in the grit chamber effluent; c is a constant value affected by pH, temperature, oxidant and catalyst concentration in the grit chamber.

3. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the treatment unit removal efficiency value Qlb is: In the formula: Qlb is the removal efficiency value of the treatment unit; Ar is the pollutant concentration of the effluent from the grit chamber; Bo is the pollutant concentration of the deep treatment sewage pool; d is the constant value affected by pH, temperature, oxidant and catalyst concentration in the deep treatment sewage pool.

4. The wastewater treatment system based on water resource recycling according to claim 3 is characterized in that: In the treatment unit, sewage is treated in a sewage pool in the order of physical treatment, biochemical treatment, chemical treatment and deep treatment. The treatment method of the treatment unit is as follows: S1.1, Physical treatment of sewage pool: Remove suspended solids, particulate matter and grease through physical methods of sedimentation, filtration and flotation; S1.2, Biochemical treatment of sewage pool: using microorganisms to degrade organic pollutants and convert them into carbon dioxide and water; S1.3, Chemical treatment sewage pool: Add chemical agents to remove heavy metal ions, phosphorus and nitrogen in sewage; S1.4, Deep treatment sewage pool: Use ultraviolet disinfection to remove residual trace pollutants.

5. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the physical treatment sewage pool removal efficiency value Qlz is: In the formula: Qlz is the removal efficiency value of the physical treatment sewage pool; Ar is the pollutant concentration of the effluent from the grit chamber; Bz is the pollutant concentration of the physical treatment sewage pool; r is the constant value affected by pH, temperature, oxidant and catalyst concentration in the physical treatment sewage pool.

6. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the removal efficiency value Qly of the biochemical treatment sewage pool is: In the formula: Qly is the removal efficiency value of the biochemical treatment sewage pool; Bz is the pollutant concentration in the physical treatment sewage pool; By is the pollutant concentration in the biochemical treatment sewage pool; e is the constant value affected by pH, temperature, oxidant and catalyst concentration in the biochemical treatment sewage pool.

7. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the removal efficiency value Qlx of the chemical treatment sewage pool is: In the formula: Qlx is the removal efficiency value of the chemical treatment sewage pool; By is the pollutant concentration of the biochemical treatment sewage pool; Bx is the pollutant concentration of the chemical treatment sewage pool; t is a constant value affected by pH, temperature, oxidant and catalyst concentration in the chemical treatment wastewater pool.

8. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The calculation formula of the removal efficiency value Qlo of the deep sewage treatment pool is the same as the removal efficiency value Qlb of the treatment unit.

9. The wastewater treatment system based on water resource recycling according to claim 1 is characterized in that: The content value Szvl of the trace harmful substances and new pollutants is obtained by the concentration sets Ce1, Ce2, Ce3, ...Ce of the trace harmful substances and new pollutants in the agricultural irrigation water in the reclaimed water reuse unit. n1 ; Concentration of trace harmful substances and new pollutants in urban greening water Cd1, Cd2, Cd3, ...Cd n2 And the concentration of trace harmful substances and new pollutants in industrial cooling water is Cp1, Cp2, Cp3, ...Cp n3 The average value is calculated using the formula: In the formula, Szvl is the content of trace harmful substances and new pollutants; n1 is the total number of times agricultural irrigation water is used; n2 is the total number of times urban greening water is used; n3 is the total number of times industrial cooling water is used; ∑Ce n1 The concentration and value of trace harmful substances and new pollutants in agricultural irrigation water; ∑Cd n2 The concentration and value of trace harmful substances and new pollutants in urban greening water; ∑Cp n3 The concentrations of trace harmful substances and new pollutants in industrial cooling water.

10. The wastewater treatment system based on water resource recycling according to claim 9, characterized in that: The wastewater treatment steps in the reclaimed water reuse unit are as follows; S2.1, wastewater undergoes different treatment processes depending on its intended use; S2.2, wastewater is adsorbed by activated carbon to remove the remaining organic matter or treated with ozone to oxidize and decompose the refractory substances. S2.

3. The treated wastewater is combined with hydrogen peroxide and ultraviolet light for advanced oxidation process and stored for use as agricultural irrigation water, urban greening water or industrial cooling water.

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