CN114988649B - Treatment system and treatment process for comprehensive sewage in industrial park - Google Patents
Treatment system and treatment process for comprehensive sewage in industrial park Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a treatment process for comprehensive sewage in an industrial park, which adopts a treatment process of standard discharge of an adjusting tank, a distribution tank, a hydrolysis acidification tower, an A/O aerobic tank, a secondary sedimentation tank, a Fenton oxidation tower, a degassing tank, a coagulation sedimentation tank, a final sedimentation tank, an intermediate water tank, an MBR/UF, a sand filter, an active coke adsorption tower, an ion exchange resin system, a contact disinfection tank and wastewater, provides a process route for sewage treatment in other similar industrial parks, can flexibly operate the wastewater treatment process according to different industrial wastewater types, and meets the national corresponding effluent quality requirements. The process has reliable treatment process, high removal rate of various pollutants in sewage and stable operation, and solves the technical problems of complex and changeable wastewater in the park and difficult standard discharge.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a treatment system and a treatment process for comprehensive sewage in an industrial park.
Background
After the industrial park plans to reside in enterprises, in order to further improve the water environment of the industrial park and optimize urban functions, sustainable development of economic benefits, environmental benefits and social benefits is realized, corresponding sewage treatment stations are matched, and the industrial park is served for the enterprises.
In order to meet the requirements of standard treatment and stable operation of industrial wastewater treatment plants, the wastewater treatment plants can be generally divided into 2 types: (1) typical solid waste landfill wastewater, which is discharged into a sewage pipeline of a park after meeting the requirements of domestic refuse landfill pollution control Standard (GB 16889-2008); (2) other enterprises produce wastewater and domestic sewage, and the wastewater is discharged into a sewage pipeline of a park after reaching the B level of wastewater discharge into urban sewer water quality standard (GB/T31962-2015). The waste water containing heavy metals in waste incineration plants and other enterprises is required to meet the requirement of the highest allowable emission concentration of the first type of pollutants in the pollutant emission standard of urban sewage treatment plants (GB 18918-2002) in Table 2 and is discharged into a sewage pipeline of a park. The specific take-over standard limit is shown in table 1.
Table 1 standard limits for sewage treatment plant takeover in park
After wastewater of a sewage treatment station in a park is treated, CODcr (chemical oxygen demand), ammonia nitrogen and total phosphorus in various indexes of discharged water execute IV water standards of surface water environment quality standards (GB 3838-2002), and other indexes execute first-level A standards in Table 1 of pollutant discharge standards of urban sewage treatment plants (GB 18918-2002). The specific standard limits are shown in Table 2.
Table 2 effluent standard limit for sewage treatment plant in park
Because of the wide variety of industrial types in industrial parks, each industry is composed of multiple stages of processes, resulting in large differences in the nature of the produced sewage, and the main characteristics are: the components are complex, and the concentration of pollutants is high; has certain toxicity; poor biodegradability; the water quality is unstable. Therefore, according to the characteristics of the diversity of the wastewater in the park, the operation of the treatment system needs to have certain flexibility and adjustment margin so as to adapt to the change of the water quality and the water quantity. The process equipment needs to have universality and advancement, and has the advantages of stable and reliable treatment, high efficiency, convenient management, small maintenance workload and moderate price. At present, most of sewage in an industrial park in China still adopts a biological treatment method, but with the improvement of national effluent quality standards, a simple biological treatment process is difficult to meet the effluent quality requirement, and particularly, the removal rate of refractory toxic substances in industrial wastewater is lower. Therefore, physical, chemical and biological methods are combined to effectively treat the comprehensive sewage in the industrial park.
Disclosure of Invention
The invention aims to solve the technical problem of providing a treatment system and a treatment process for comprehensive sewage in an industrial park, so as to solve the technical problems that the wastewater in the industrial park is complex and changeable and is difficult to be treated in a centralized manner.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention provides a treatment process of industrial park comprehensive sewage, which comprises the following steps:
s1, each enterprise in an industrial park is provided with an adjusting tank, each enterprise is provided with a tank, the discharge of each enterprise adopts a respective independent special pipeline, the sewage is pumped into the respective adjusting tank through a sewage pump, and an aeration stirring system is arranged in the adjusting tank to homogenize the sewage and adjust the water quality and the water quantity;
s2, pumping sewage containing suspended matters and/or oil substances in each regulating tank into an air floatation tank, wherein an air dissolving floatation system for generating micro-bubbles is arranged in the air floatation tank, and suspended matters and/or oil substances in wastewater are attached to the surfaces of the micro-bubbles and float upwards to the surfaces of liquid and are scraped by a slag scraping system; supernatant fluid of the air floatation tank flows into the distribution tank, and waste water of other regulating tanks is pumped into the distribution tank;
s3, after uniformly mixing the wastewater in a water distribution tank, pumping the wastewater into a hydrolysis acidification tower, decomposing part of organic matters which are difficult to degrade into organic matters which are easy to degrade by utilizing the hydrolysis and acidification effects of anaerobic microorganisms, and decomposing part of macromolecular organic matters into micromolecular organic matters;
s4, enabling water discharged from the hydrolysis acidification tower to flow into an A/O aerobic tank, performing denitrification and dephosphorization on the wastewater, and degrading most organic pollutants in the wastewater; the water discharged from the A/O aerobic tank enters a secondary sedimentation tank for mud-water separation;
s5, the effluent of the secondary sedimentation tank enters an acid regulating tank, acid is added to regulate the pH value of the wastewater to 4-4.5, then the wastewater enters a Fenton oxidation tower, and hydrogen peroxide and FeSO are added into the wastewater 4 Starting a circulating pump to perform Fenton reaction;
s6, enabling effluent of the Fenton oxidation tower to enter a degassing tank for degassing, and removing redundant hydrogen peroxide in the wastewater; then the wastewater enters a coagulating sedimentation tank, alkali is added to adjust the pH value of the wastewater to 6.5 to 7.0, and coagulant is added to enable part of organic matters, colloid matters and suspended matters which are difficult to dissolve in water to form alum blossom particles; the effluent of the coagulating sedimentation tank enters a final sedimentation tank for mud-water separation;
s7, discharging water from the final sedimentation tank to perform an intermediate water tank;
s8, enabling the effluent of the middle water tank to enter an MBR tank/UF system, and enabling the mud-water mixture to pass through a filter membrane for solid-liquid separation under the drive of external force;
s9, pumping the effluent water of the MBR pool/UF system into a sand filter for filtering, and then passing the effluent water through an active coke adsorption tower to reduce the content of organic matters in the wastewater by utilizing microorganisms attached to the active coke;
s10, enabling the effluent of the active coke adsorption tower to enter a contact disinfection tank, and then automatically flowing to a discharge tank to reach the standard for discharge.
Further, in the step S4, the secondary sedimentation tank adopts radial flow type, part of sludge in the secondary sedimentation tank flows back to the A/O aerobic tank, and the other part flows back to the anaerobic hydrolysis tank for further anaerobic digestion.
Further, in step S6, the coagulant is polyacrylamide.
Further, in step S10, when the effluent of the active coke adsorption tower detects that a part of heavy metal ions exceeds the standard, the wastewater is redirected into the ion exchange resin system to capture the heavy metal ions in the wastewater; the water discharged from the ion exchange resin system enters the contact disinfection tank.
Further, when the filterability of the MBR tank/UF system, the sand filter or the active coke adsorption tower is reduced or the adsorption capacity reaches saturation, the MBR tank/UF system, the sand filter and the active coke adsorption tower are back-flushed through a back-flushing tank, wherein the water of the back-flushing tank is derived from clean water of a discharge tank.
Further, all sludge settled in the air floatation tank, the final sedimentation tank and the MBR tank and part of sludge settled in the hydrolytic acidification tower and the secondary sedimentation tank are pumped into the sludge tank through a sludge discharge pump, and sludge cake outsourcing treatment is formed after filter pressing and dehydration; and returning filtrate generated by filter pressing to the regulating tank.
The invention provides a treatment system for comprehensive sewage in an industrial park, which comprises an adjusting tank, an air floatation tank, a distribution tank, a hydrolysis acidification tower, an A/O aerobic tank, a secondary sedimentation tank, an acid adjusting tank, a Fenton oxidation tower, a degassing tank, a coagulation reaction tank, a final sedimentation tank, an intermediate tank, an MBR (membrane bioreactor)/UF (UF) system, a sand filter, an active coke adsorption tower, an ion exchange resin system, a contact disinfection tank and a discharge tank; wherein, each enterprise in the industrial park is provided with a regulating tank, wherein, for the enterprises which discharge sewage containing suspended matters and/or oil substances, the regulating tank is connected into the air floatation tank through a pipeline, and the regulating tanks which are equipped by other enterprises are connected into the distribution tank through pipelines;
the air floatation tank, the distribution tank, the hydrolysis acidification tower, the A/O aerobic tank, the secondary sedimentation tank, the acid regulation tank, the Fenton oxidation tower, the degassing tank, the coagulation reaction tank, the final sedimentation tank, the middle tank, the MBR tank/UF system, the sand filter, the active coke adsorption tower, the ion exchange resin system, the contact disinfection tank and the discharge tank are sequentially connected in series through pipelines, and the active coke adsorption tower is also connected to the contact disinfection tank through another pipeline; and aeration stirring systems are arranged in the regulating tank, the distribution tank, the A/O aerobic tank and the degassing tank.
Further, the device also comprises an emergency pool for temporarily storing the wastewater in an emergency way, and the emergency pool is communicated with the adjusting pool through a pipeline.
Further, the device also comprises a backwashing pond which is communicated with the MBR pond/UF system and the active coke adsorption tower through pipelines and is used for carrying out backwashing on the MBR pond/UF system and the active coke adsorption tower.
Further, the system also comprises a sludge treatment system, wherein the sludge treatment system consists of a sludge tank and a sludge press filter, the air floatation tank, the hydrolysis acidification tower, the secondary sedimentation tank, the final sedimentation tank and the MBR tank/UF system are communicated with the sludge tank through pipelines, and the sludge tank is connected to the sludge press filter through a sludge pump.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a biochemical treatment process for wastewater in an industrial park, which can provide a process route for wastewater treatment in other similar industrial parks, can flexibly operate the wastewater treatment process according to different industrial wastewater types, and meets the national corresponding effluent quality requirements.
2. The treatment process of the invention has reliable operation and high removal rate of various pollutants in sewage, and can ensure the standard discharge.
Drawings
FIG. 1 is a flow chart of the process for treating industrial park comprehensive wastewater.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As described in the background art, for the comprehensive wastewater treatment of industrial parks, as the sewage properties generated by different enterprises are greatly different, the method is mainly characterized in that: the components are complex, and the concentration of pollutants is high; has certain toxicity; poor biodegradability; the water quality is unstable. Therefore, according to the characteristics of the diversity of the wastewater in the park, the operation of the treatment system needs to have certain flexibility and adjustment margin so as to adapt to the change of the water quality and the water quantity. The process equipment needs to have universality and advancement, and has the advantages of stable and reliable treatment, high efficiency, convenient management, small maintenance workload and moderate price. The pure biological treatment process has difficulty in meeting the requirement of the water quality of the effluent, and particularly has low removal rate of refractory toxic substances in industrial wastewater. Therefore, physical, chemical and biological methods are combined to effectively treat the comprehensive sewage in the industrial park.
In order to solve the technical problem, the invention provides a treatment process of comprehensive wastewater in an industrial park, which takes A1 and A2 double-way lines as main bodies, and by mutually combining, the repeated construction of the wastewater treatment process is greatly reduced, and meanwhile, the wastewater treatment process can be flexibly operated according to different industrial wastewater types, so that the national corresponding effluent quality requirement is met. Wherein, A1: the wastewater is discharged after reaching the standard, wherein the wastewater comprises an adjusting tank, a distribution tank, a hydrolysis acidification tower, an A/O aerobic tank, a secondary sedimentation tank, a Fenton oxidation tower, a degassing tank, a coagulating sedimentation tank, a final sedimentation tank, an intermediate tank, an MBR/UF, a contact disinfection tank and the like; a2: the wastewater reaches the standard and is discharged outside, wherein the wastewater comprises an adjusting tank, a distribution tank, a hydrolysis acidification tower, an A/O aerobic tank, a secondary sedimentation tank, a Fenton oxidation tower, a degassing tank, a coagulating sedimentation tank, an intermediate water tank, a sand filter, an active coke adsorption tower, a contact disinfection tank and the wastewater. The treatment process according to the present invention will be described in detail with reference to fig. 1.
Referring to fig. 1, the treatment process of the present invention includes the following steps:
s1, each enterprise in the industrial park is provided with an adjusting tank, each enterprise is provided with a tank, the discharge of each enterprise adopts a respective independent special pipeline, and sewage is pumped into the respective adjusting tank through a sewage pump to perform water quality homogenization and water quantity adjustment on the sewage.
Because the water quality of the wastewater produced by different enterprises has larger difference, the pretreatment process also has difference, and the targeted adjustment and pretreatment can be carried out on different types of wastewater by implementing an enterprise and an adjusting tank.
In a preferred embodiment, each enterprise is also equipped with an emergency pool, in which case the waste water can be stored in an emergency.
S2, pumping sewage containing Suspended Substances (SS) and/or oil substances in each regulating tank into an air floatation tank, wherein an air floatation dissolving system for generating micro-bubbles is arranged in the air floatation tank, and suspended substances and/or oil substances in the sewage are attached to the surfaces of the micro-bubbles and float upwards to reach the surfaces of liquid and are scraped by a slag scraping system; supernatant of the air floatation tank flows into the distribution tank, and wastewater of other regulating tanks is pumped into the distribution tank.
For wastewater containing SS and grease, the wastewater is required to be introduced into an air floatation tank for pretreatment before biochemical treatment, so that the SS and grease in the wastewater are removed.
S3, after the wastewater is uniformly mixed in a water distribution tank, pumping the wastewater into a hydrolysis acidification tower, decomposing part of organic matters which are difficult to degrade into organic matters which are easy to degrade by utilizing the hydrolysis and acidification effects of anaerobic microorganisms, and decomposing part of macromolecular organic matters into micromolecular organic matters.
Because of a large number of indissolvable and nondegradable macromolecular organic matters in the wastewater, the wastewater is firstly introduced into a hydrolysis acidification tower for hydrolysis acidification so as to facilitate subsequent anaerobic and aerobic biochemical treatment, thereby improving the biodegradability of the wastewater and providing a good water quality environment for subsequent biochemical treatment.
S4, enabling water discharged from the hydrolysis acidification tower to flow into an A/O aerobic tank, performing denitrification and dephosphorization on the wastewater, and degrading most organic pollutants in the wastewater; the water discharged from the A/O aerobic tank enters a secondary sedimentation tank for mud-water separation.
The A/O process is carried out in an A/O aerobic tank, the AO process connects a front anoxic section and a rear aerobic section in series, heterotrophic bacteria in the anoxic section hydrolyze suspended pollutants and soluble organic matters in sewage into organic acids, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and when products of the anoxic hydrolysis enter the aerobic tank for aerobic treatment, the biodegradability and oxygen efficiency of the sewage can be improved; in the anoxic zone, the heterotrophic bacteria ammoniate the contaminants (N on the organic chain or amino groups in the amino acids) to liberate ammonia (NH) 3 、NH 4 + ) Under the condition of sufficient oxygen supply, the nitrifying action of autotrophic bacteria can make NH 3 -N(NH 4 + ) Oxidation to NO 3 - Returning to the pool A through reflux control, and under the anoxic condition, denitrifying the heterotrophic bacteria to remove NO 3 - Reduction to molecular nitrogen (N) 2 ) Finish C,N, O is circulated in ecology to realize sewage harmless treatment.
In the invention, the A/O mode is adopted to operate for denitrification and dephosphorization, and meanwhile, the air quantity is reduced. The secondary sedimentation tank is used for separating mud from water, clarifying and discharging water, and the secondary sedimentation tank adopts radial flow, so that the operation is simple, the operation is reliable, and the mud discharge is thorough. And part of sludge in the secondary sedimentation tank flows back to the A/O aerobic tank, and the other part flows back to the hydrolysis acidification tower for further anaerobic digestion, so that the purpose of reducing the sludge is achieved.
S5, the effluent of the secondary sedimentation tank enters an acid regulating tank, acid is added to regulate the pH value of the wastewater to 4-4.5, then the wastewater enters a Fenton oxidation tower, and hydrogen peroxide and FeSO are added into the wastewater 4 And starting a circulating pump to perform Fenton reaction.
By H 2 O 2 (Hydrogen peroxide) with Fe 2+ The combined Fenton reagent is a classical catalytic oxidation method, and the method is suitable for treating high-concentration and nondegradable organic substances in wastewater, has good removal effect on substances with poor benzene rings and biochemistry, and has the optimal oxidation effect at the pH value of about 4; h 2 O 2 At Fe 2+ Is decomposed to produce OH under the catalysis of (2) - The oxidation potential reaches 2.8V, and the organic compound is the strongest inorganic oxidant except for elemental fluorine, and is oxidized and decomposed into small molecules through the ways of electron transfer and the like. Meanwhile, fe 2+ Is oxidized to Fe 3+ And (3) generating coagulating sedimentation and removing a large amount of organic matters. The Fenton method has two functions of oxidization and coagulation in water treatment.
S6, enabling effluent of the Fenton oxidation tower to enter a degassing tank for degassing, and removing redundant hydrogen peroxide in the wastewater; then the wastewater enters a coagulating sedimentation tank, alkali is added to adjust the pH value of the wastewater to 6.5 to 7.0, and coagulant is added to enable part of organic matters, colloid matters and suspended matters which are difficult to dissolve in water to form alum blossom particles; and (5) enabling the effluent of the coagulating sedimentation tank to enter a final sedimentation tank for mud-water separation.
In the invention, an aeration system is arranged in the degassing tank, and bubbles in the wastewater are removed through blasting and stirring, so that redundant hydrogen peroxide is removed.
In the invention, the coagulation sedimentation tank is added with the coagulationAgent which is compatible with Fe produced after Fenton treatment 3+ Can perform flocculation reaction with the wastewater under the condition of pH value of 6.5-7.0, and remove organic matters, colloid and suspended matters in the wastewater. In the present invention, the type of coagulant is not limited, and Polyacrylamide (PAM) is preferable. Alternatively, a flocculant, such as polyaluminum chloride (PAC), may be added simultaneously.
S7, enabling the effluent of the final sedimentation tank to enter an intermediate water tank.
S8, enabling the effluent of the middle water tank to enter an MBR tank/UF system, and enabling the mud-water mixture to be subjected to solid-liquid separation through a membrane material under the driving of external force so as to ensure stable standard-reaching discharge.
MBR, also known as Membrane bioreactor (Membrane Bio-Reactor), is a novel water treatment technology that combines a Membrane separation unit with a biological treatment unit. The membrane structure can be divided into a flat membrane, a tubular membrane, a hollow fiber membrane and the like, and the membrane pore size can be divided into a microfiltration membrane, an ultrafiltration membrane, a nanofiltration membrane, a reverse osmosis membrane and the like. Ultrafiltration (UF) systems, in turn, are a pressurized membrane separation technology that retains relatively high molecular weight substances such as colloids, particles, and water under external driving forces (pressure), while water and small solute particles permeate the membrane. When the wastewater to be treated passes through the UF system, water molecules and solutes with small molecular weight penetrate through the membrane, and particles, macromolecules and the like which are larger than the membrane holes are trapped due to the screening effect, so that most of colloid contained in the water can be removed, and a large amount of organic matters and the like can be removed, thereby purifying the water. The trapped sludge and impurities are left in the tank and periodically pumped into a sludge concentration tank.
Preferably, the MBR tank/ultrafiltration system is equipped with a backwash tank, by which the filter membranes are rinsed.
S9, pumping the effluent water of the MBR pool/UF system into a sand filter for filtering, and then passing the effluent water through an active coke adsorption tower to reduce the content of organic matters in the wastewater by utilizing microorganisms attached to the active coke.
The sand filter serves to further reduce the content of suspended matter in the wastewater. The sand filter is filled with a packing layer, and impurities are trapped in the packing layer when wastewater flows through the packing layer in the sand filter. The bottom of the filter is provided with a plurality of water collectors which are uniformly distributed, the filtered water is uniformly collected and led out, and the water is subjected to horizontal flow filtration, so that the filter can filter at a high flow rate, and a better filtering effect can be achieved.
The active coke is a granular substance with dual adsorption and catalysis performances, which is developed by taking lignite as a main raw material, has the characteristics of active carbon, and overcomes the defects of high price, low mechanical strength and easiness in crushing of the active carbon. Active coke filtration is a process of trapping suspended contaminants in water, and the trapped suspended contaminants fill the interstices between the active coke. In the invention, the microorganisms attached to the surface of the active coke are utilized to adsorb and treat the organic matters in the water, so that the content of the organic matters in the wastewater can be further reduced.
Preferably, the sand filter and the active coke adsorption tower are provided with backwashing tanks, and the packing layers and the active coke in the sand filter and the active coke adsorption tower are washed through the backwashing.
In addition, when the filterability of the MBR tank/UF system, the sand filter or the active coke adsorption tower is reduced or the adsorption amount reaches saturation, the MBR tank/UF system, the sand filter and the active coke adsorption tower are back-flushed through a back-flushing tank, wherein the water of the back-flushing tank is derived from clean water of a discharge tank.
S10, enabling the effluent of the active coke adsorption tower to enter a contact disinfection tank, and discharging after reaching standards.
In the invention, in the contact disinfection tank, effluent is disinfected by adding sodium hypochlorite into wastewater, and then enters the discharge tank to reach the discharge standard.
When the effluent of the active coke adsorption tower detects that part of heavy metal ions exceed the standard, adopting emergency measures to redirect the wastewater into an ion exchange resin system so as to capture the heavy metal ions in the wastewater, and ensuring that all indexes of the effluent meet the discharge requirement; the water discharged from the ion exchange resin system enters the contact disinfection tank.
The ion exchange resin system is a traditional water treatment process for removing metal ions in water by replacing various anions and cations in the water by anion and cation exchange resins.
S11, pumping all sludge settled in the air floatation tank, the final sedimentation tank and the MBR tank into a sludge tank through a sludge discharge pump, and performing filter pressing dehydration to form sludge cake for outsides treatment; and returning filtrate generated by filter pressing to the regulating tank.
In the invention, the sludge mainly comes from an air floatation tank, a hydrolysis acidification tower, a secondary sedimentation tank, a final sedimentation tank and an MBR tank, wherein the sludge of the hydrolysis acidification tower and the secondary sedimentation tank is basically digested through reflux, and only a small part of residual sludge needs to be treated.
In conclusion, the treatment process of the industrial park comprehensive sewage provided by the invention is reliable in process, and high in removal rate of various pollutants in the sewage, and meets the national corresponding effluent quality requirement; the operation is stable, the wastewater treatment process can be flexibly operated according to different industrial wastewater types, the technical problem that the wastewater in the park is complex and changeable and is difficult to reach the standard to be discharged is solved, and a process route is provided for the wastewater treatment of other similar industrial parks.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The process for treating the comprehensive sewage in the industrial park is characterized by comprising the following steps of:
s1, each enterprise in an industrial park is provided with an adjusting tank, each enterprise is provided with a tank, the discharge of each enterprise adopts a respective independent special pipeline, and sewage is pumped into the respective adjusting tank through a sewage pump to perform water quality homogenization and water quantity adjustment on the sewage;
s2, pumping sewage containing suspended matters and/or oil substances in each regulating tank into an air floatation tank, wherein an air dissolving floatation system for generating micro-bubbles is arranged in the air floatation tank, and suspended matters and/or oil substances in wastewater are attached to the surfaces of the micro-bubbles and float upwards to the surfaces of liquid and are scraped by a slag scraping system; supernatant fluid of the air floatation tank flows into the distribution tank, and waste water of other regulating tanks is pumped into the distribution tank;
s3, after uniformly mixing the wastewater in a water distribution tank, pumping the wastewater into a hydrolysis acidification tower, decomposing part of organic matters which are difficult to degrade into organic matters which are easy to degrade by utilizing the hydrolysis and acidification effects of anaerobic microorganisms, and decomposing part of macromolecular organic matters into micromolecular organic matters;
s4, enabling water discharged from the hydrolysis acidification tower to flow into an A/O aerobic tank, performing denitrification and dephosphorization on the wastewater, and degrading most organic pollutants in the wastewater; the water discharged from the A/O aerobic tank enters a secondary sedimentation tank for mud-water separation;
s5, the effluent of the secondary sedimentation tank enters an acid regulating tank, acid is added to regulate the pH value of the wastewater to 4-4.5, then the wastewater enters a Fenton oxidation tower, and hydrogen peroxide and FeSO are added into the wastewater 4 Starting a circulating pump to perform Fenton reaction;
s6, enabling effluent of the Fenton oxidation tower to enter a degassing tank for degassing, and removing redundant hydrogen peroxide in the wastewater; adding the effluent of the degassing tank into a coagulating sedimentation tank, adding alkali to adjust the pH value of the wastewater to 6.5-7.0, and adding a coagulant to enable part of water-insoluble organic matters, colloid matters and suspended matters to form alum blossom particles; the effluent of the coagulating sedimentation tank enters a final sedimentation tank for mud-water separation;
s7, discharging water from the final sedimentation tank into an intermediate water tank;
s8, enabling the effluent of the middle water tank to enter an MBR tank/UF system, and enabling the mud-water mixture to pass through a filter membrane for solid-liquid separation under the drive of external force;
s9, pumping the effluent water of the MBR pool/UF system into a sand filter for filtering, and then passing the effluent water through an active coke adsorption tower to reduce the content of organic matters in the wastewater by utilizing microorganisms attached to the active coke;
s10, enabling the effluent of the active coke adsorption tower to enter a contact disinfection tank, and then automatically flowing to a discharge tank to reach the standard for discharge.
2. The process for treating industrial park comprehensive sewage according to claim 1, wherein in step S4, the secondary sedimentation tank adopts radial flow, sludge in the secondary sedimentation tank partially flows back to the a/O aerobic tank, and partially flows back to the hydrolysis acidification tower for further hydrolysis and anaerobic digestion.
3. The process for treating industrial park comprehensive sewage according to claim 1, wherein in step S6, the coagulant is PAM.
4. The process for treating industrial park comprehensive sewage according to claim 1, wherein in step S10, when the effluent of the active coke adsorption tower detects that a part of heavy metal ions exceeds the standard, the wastewater is redirected into the ion exchange resin system to capture the heavy metal ions in the wastewater; the water discharged from the ion exchange resin system enters the contact disinfection tank.
5. The process for treating industrial park comprehensive sewage according to claim 1, wherein when the filterability of the MBR tank/UF system, the sand filter or the activated coke adsorption tower is reduced or the adsorption capacity is saturated, the MBR tank/UF system, the sand filter and the activated coke adsorption tower are back-flushed by a back-flushing tank, wherein the water of the back-flushing tank is derived from clean water of a discharge tank.
6. The process for treating industrial park comprehensive sewage according to claim 1, wherein all sludge settled in the air floatation tank, the final sedimentation tank and the MBR tank/UF system and part of sludge settled in the hydrolysis acidification tower and the secondary sedimentation tank are pumped into a sludge tank through a sludge discharge pump, and are subjected to filter pressing and dehydration to form sludge cake outsides treatment; and returning filtrate generated by filter pressing to the regulating tank.
7. The system is characterized by comprising an adjusting tank, an air flotation tank, a distribution tank, a hydrolysis acidification tower, an A/O aerobic tank, a secondary sedimentation tank, an acid adjusting tank, a Fenton oxidation tower, a degassing tank, a coagulation reaction tank, a final sedimentation tank, an intermediate tank, an MBR tank/UF system, a sand filter, an active coke adsorption tower, an ion exchange resin system, a contact disinfection tank and a discharge tank; wherein, each enterprise in the industrial park is provided with a regulating tank, wherein, for the enterprises which discharge sewage containing suspended matters and/or oil substances, the regulating tank is connected into the air floatation tank through a pipeline, and the regulating tanks which are equipped by other enterprises are connected into the distribution tank through pipelines;
the air floatation tank, the distribution tank, the hydrolysis acidification tower, the A/O aerobic tank, the secondary sedimentation tank, the acid regulation tank, the Fenton oxidation tower, the degassing tank, the coagulation reaction tank, the final sedimentation tank, the middle tank, the MBR tank/UF system, the sand filter, the active coke adsorption tower, the ion exchange resin system, the contact disinfection tank and the discharge tank are sequentially connected in series through pipelines, and the active coke adsorption tower is also connected to the contact disinfection tank through another pipeline; and aeration stirring systems are arranged in the regulating tank, the distribution tank, the A/O aerobic tank and the degassing tank.
8. The system for treating industrial park comprehensive sewage according to claim 7, further comprising an emergency tank for temporarily storing the sewage in emergency, wherein the emergency tank is communicated with the regulating tank through a pipeline.
9. The system for treating industrial park comprehensive sewage according to claim 7, further comprising a backwash tank, wherein the backwash tank is derived from clean water from the effluent tank and is in communication with the MBR tank/UF system, the sand filter and the activated coke adsorption tower via pipes for back flushing the MBR tank/UF system, the sand filter and the activated coke adsorption tower.
10. The system for treating industrial park comprehensive sewage according to claim 7, further comprising a sludge treatment system, wherein the sludge treatment system comprises a sludge tank and a sludge press filter, wherein the air floatation tank, the hydrolysis acidification tower, the secondary sedimentation tank, the final sedimentation tank and the MBR tank/UF system are communicated with the sludge tank through pipelines, and wherein the sludge tank is connected to the sludge press filter through a sludge pump.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381744A (en) * | 2011-09-28 | 2012-03-21 | 天津市环境保护科学研究院 | Polyphase multipole electrocatalytic industrial wastewater processing system for high efficiency biological toxicity removal |
| CN105753255A (en) * | 2016-04-07 | 2016-07-13 | 桑德集团有限公司 | Advanced treatment recycling system for industrial park wastewater |
| CN106587531A (en) * | 2016-12-30 | 2017-04-26 | 北京桑德环境工程有限公司 | Treatment system and method for synthesizing type industrial park sewage |
| CN108455768A (en) * | 2018-03-26 | 2018-08-28 | 哈尔滨工业大学 | It is a kind of using water reuse as the organic-inorganic polluted heavy metals production wastewater treatment method of core |
| CN109437494A (en) * | 2018-12-26 | 2019-03-08 | 苏州苏沃特环境科技有限公司 | A kind of processing unit and method of water-jet loom sewage |
| CN113511777A (en) * | 2021-05-25 | 2021-10-19 | 江苏南大华兴环保科技股份公司 | Chemical industry park comprehensive sewage treatment system and process |
| CN114477641A (en) * | 2022-02-12 | 2022-05-13 | 徐荟萃 | Treatment method of comprehensive sewage of fine chemical industry park |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6497843B2 (en) * | 2014-01-30 | 2019-04-10 | 三菱重工エンジニアリング株式会社 | Chemical fouling prevention system and method for reverse osmosis membrane |
-
2022
- 2022-06-27 CN CN202210737283.2A patent/CN114988649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381744A (en) * | 2011-09-28 | 2012-03-21 | 天津市环境保护科学研究院 | Polyphase multipole electrocatalytic industrial wastewater processing system for high efficiency biological toxicity removal |
| CN105753255A (en) * | 2016-04-07 | 2016-07-13 | 桑德集团有限公司 | Advanced treatment recycling system for industrial park wastewater |
| CN106587531A (en) * | 2016-12-30 | 2017-04-26 | 北京桑德环境工程有限公司 | Treatment system and method for synthesizing type industrial park sewage |
| CN108455768A (en) * | 2018-03-26 | 2018-08-28 | 哈尔滨工业大学 | It is a kind of using water reuse as the organic-inorganic polluted heavy metals production wastewater treatment method of core |
| CN109437494A (en) * | 2018-12-26 | 2019-03-08 | 苏州苏沃特环境科技有限公司 | A kind of processing unit and method of water-jet loom sewage |
| CN113511777A (en) * | 2021-05-25 | 2021-10-19 | 江苏南大华兴环保科技股份公司 | Chemical industry park comprehensive sewage treatment system and process |
| CN114477641A (en) * | 2022-02-12 | 2022-05-13 | 徐荟萃 | Treatment method of comprehensive sewage of fine chemical industry park |
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