CN214218494U - Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials - Google Patents
Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials Download PDFInfo
- Publication number
- CN214218494U CN214218494U CN202023314778.XU CN202023314778U CN214218494U CN 214218494 U CN214218494 U CN 214218494U CN 202023314778 U CN202023314778 U CN 202023314778U CN 214218494 U CN214218494 U CN 214218494U
- Authority
- CN
- China
- Prior art keywords
- tank
- communicated
- export
- pond
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to an use barbituric acid waste water treatment equipment of dimethyl malonate and urea as the raw materials, effectively solve ammonia nitrogen, SS, COD in the reduction waste water, improve the biodegradability, reduce the colourity, realize the processing problem of barbituric acid waste water. The waste water import and the storage pond of neutralization equalizing basin link to each other, the export links to each other with the air supporting machine, the export of air supporting machine links to each other with triple effect evaporimeter, triple effect evaporimeter's export links to each other with comprehensive equalizing basin, the export of synthesizing the equalizing basin links to each other with first flocculation and precipitation pond, the export of first flocculation and precipitation pond links to each other with ozone pre-oxidation pond, the export of ozone pre-oxidation pond links to each other with IC anaerobic tank, the export of IC anaerobic reactor links to each other with the anaerobic tank, the export of anaerobic tank is linked to each other with the oxygen deficiency pond, the export of oxygen deficiency pond links to each other with the contact oxidation pond, the export of contact oxidation pond links to each other with secondary sedimentation pond, the export of secondary sedimentation pond links to each other with the second flocculation and precipitation pond, the export of second sedimentation pond links to each other with the filtering pond, the export of filtering pond links to each other with sewage pipe.
Description
Technical Field
The utility model relates to a wastewater treatment device, in particular to a barbituric acid production wastewater treatment device using dimethyl malonate and urea as raw materials.
Background
Barbituric acid belongs to an organic synthesis intermediate of a sedative drug, raw water discharged from a workshop is characterized by strong acidity, the pH value is about 1.5, the COD is as high as 50000mg/L, the biodegradability of the waste water is poor due to the fact that a product belongs to heterocyclic organic matters, the salt content is high (the electric conductivity is 65000-class 70000 ㎲/cm, the reduced salt concentration is 40000-class 43000 mg/L), the ammonia nitrogen (200-class 220 mg/L) and the chroma (500) are high, and the barbituric acid belongs to typical high-salt, high-ammonia nitrogen and high-concentration organic waste water in chemical production. The salt content in the wastewater is high, and the biodegradability is poor, so that if the wastewater directly enters a biochemical system, the wastewater has a strong inhibitory effect on subsequent biological treatment, and even the biochemical system can be broken down. Therefore, the pretreatment of the wastewater is required to be enhanced, high salt, most ammonia nitrogen and SS in the wastewater are removed, and the biodegradability of the wastewater before entering a biochemical system is improved.
Generally, for various waste water with poor biodegradability, technologies such as iron-carbon micro-electrolysis, a Fenton method, ozone oxidation and the like are adopted at present, the purpose is to break chains of organic matters and degrade the organic matters, so that the biodegradability of the waste water is improved, but equipment used in the methods has structural problems, and a part of heterocyclic organic matters which have large requirements on chain breaking chemical energy are difficult to act. The desalted wastewater still has higher ammonia nitrogen, high SS, higher COD, poor biodegradability, high chroma and the like, so the improvement and innovation of the device for treating the barbituric acid production wastewater taking dimethyl malonate and urea as raw materials are imperative.
SUMMERY OF THE UTILITY MODEL
To above-mentioned condition, for overcoming prior art's defect, the utility model aims at providing an use dimethyl malonate and urea as the barbituric acid waste water treatment facility of raw materials, can effectively solve reduction waste water well ammonia nitrogen, high SS, COD, improve the biodegradability, reduce the colourity, realize the problem of treatment to the barbituric acid waste water of producing with dimethyl malonate and urea as the raw materials.
The technical proposal that the utility model provides a barbituric acid production wastewater treatment device using dimethyl malonate and urea as raw materials, which comprises a neutralization adjusting tank, an air floatation machine, a three-effect evaporator (or MVR evaporator), a comprehensive adjusting tank, a flocculation sedimentation tank, an air blower, a contact oxidation tank (aerobic tank), a sedimentation tank and a filter tank, wherein the barbituric production wastewater inlet of the neutralization adjusting tank is communicated with the water outlet pipeline of a barbituric production wastewater storage tank A, the water outlet of the neutralization adjusting tank is communicated with the sewage inlet of the air floatation machine through a sewage pump, the sewage outlet of the air floatation machine is communicated with the water inlet of the three-effect evaporator or the MVR evaporator, the water outlet of the three-effect evaporator or the MVR evaporator is communicated with the water inlet of the comprehensive adjusting tank, the water outlet of the comprehensive adjusting tank is communicated with the water inlet of a first flocculation sedimentation tank, the water outlet of the first flocculation sedimentation tank is communicated with the water inlet of an ozone pre-oxidation tank, the water outlet of the ozone pre-oxidation tank is communicated with the water inlet of the IC anaerobic reactor, the water outlet of the IC anaerobic reactor is communicated with the water inlet of the anaerobic tank, the water outlet of the anaerobic tank is communicated with the anoxic tank, the water outlet of the anoxic tank is communicated with the water inlet of the contact oxidation tank (or called aerobic tank), the water outlet of the contact oxidation tank is communicated with the water inlet of the secondary sedimentation tank, the water outlet of the secondary sedimentation tank is communicated with the water inlet of the second flocculation sedimentation tank, the water outlet of the second flocculation sedimentation tank is communicated with the water inlet of the filter tank, and the water outlet of the filter tank is communicated with a treated sewage discharge pipeline to form a wastewater treatment structure.
The utility model discloses equipment design scientific and reasonable, easy operation, the treatment effeciency is high, and is effectual, can effectively detach or reduce the harmful substance in the waste water, guarantees waste water discharge to reach standard, prevents to cause the pollution to the environment, is a big innovation on the waste water treatment equipment, and economic and social are huge.
Drawings
Fig. 1 is a diagram of the structure block of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in figure 1, when the utility model is implemented, the utility model relates to barbituric acid production wastewater treatment equipment using dimethyl malonate and urea as raw materials, which comprises a neutralization adjusting tank, an air floatation machine, a three-effect evaporator (or MVR evaporator), a comprehensive adjusting tank, a flocculation sedimentation tank, a blower, a contact oxidation tank (aerobic tank), a sedimentation tank and a filter tank, wherein a barbituric production wastewater inlet of the neutralization adjusting tank 1 is communicated with a water outlet pipeline of a barbituric production wastewater storage tank A, a water outlet of the neutralization adjusting tank 1 is communicated with a sewage inlet of the air floatation machine 5 through a sewage pump 2, a sewage outlet of the air floatation machine 5 is communicated with a water inlet of the three-effect evaporator or MVR evaporator 6, a water outlet of the three-effect evaporator or MVR evaporator 6 is communicated with a water inlet of the comprehensive adjusting tank 7, a water outlet of the comprehensive adjusting tank 7 is communicated with a water inlet of a first flocculation sedimentation tank 8, the water outlet of the first flocculation sedimentation tank 8 is communicated with the water inlet of an ozone pre-oxidation tank 11, the water outlet of the ozone pre-oxidation tank 11 is communicated with the water inlet of an IC anaerobic reactor 12, the water outlet of the IC anaerobic reactor 12 is communicated with the water inlet of an anaerobic tank 13, the water outlet of the anaerobic tank 13 is communicated with an anoxic tank 14, the water outlet of the anoxic tank 14 is communicated with the water inlet of a contact oxidation tank (or called aerobic tank) 15, the water outlet of the contact oxidation tank 15 is communicated with the water inlet of a secondary sedimentation tank 17, the water outlet of the secondary sedimentation tank 17 is communicated with the water inlet of a second flocculation sedimentation tank 18, the water outlet of the second flocculation sedimentation tank 18 is communicated with the water inlet of a filter tank 19, and the water outlet of the filter tank 19 is communicated with a treated sewage discharge pipeline to form a wastewater treatment structure.
In order to ensure the use effect and the convenience in use, a first automatic medicine feeding device 3 is arranged on a medicine feeding port of the neutralization adjusting tank 1, a second automatic medicine feeding device 4 is arranged on a medicine feeding port of the air floatation machine 5, and a third automatic medicine feeding device 9 is arranged on a medicine feeding port of the first flocculation sedimentation tank 8;
the bottoms of the air flotation machine 5, the comprehensive adjusting tank 7 and the contact oxidation tank 15 are all provided with aeration discs with micropores, the aeration discs are communicated with a blower 16, and the blower 16 is a Roots blower;
an ozone inlet of the ozone pre-oxidation tank 11 is communicated with an outlet of the ozone generator 10, and the ozone generator 10 conveys ozone into the ozone pre-oxidation tank 11 for aeration;
the sludge outlets of the secondary sedimentation tank 17 and the first flocculation sedimentation tank 8 are communicated with the inlet of a sludge tank 20, and a sludge conditioning agent dosing device 22 is arranged on an outlet pipeline of the sludge tank 20 and is communicated with the inlet of a sludge dewatering machine 21;
the neutralization regulating tank 1 is of a steel concrete structure, four-oil three-cloth corrosion prevention is carried out on the inner wall of the tank, the gap between grids is 10mm, the flow velocity of passing the grids is 0.6-0.8m/s, the inclination angle of the grids is 60 degrees, and a rack and rake teeth are both made of 316L stainless steel materials;
the comprehensive adjusting tank 7 is of a steel concrete structure, the inner wall of the tank wall is subjected to four-oil three-cloth corrosion prevention, a grid is arranged in the comprehensive adjusting tank 7, the gap between the grids is 3mm, the flow speed of the grid passing is 0.6-0.8m/s, the inclination angle of the grid is 60-75 degrees, and the rack and rake teeth are made of 304 stainless steel materials.
It should be noted that, the utility model discloses each part is current product except stating in addition, the utility model discloses a contribution lies in, with these parts through scientific design, reasonable combination is in the same place, constitutes one kind and uses dimethyl malonate and urea to be the treatment of barbituric acid waste water processing equipment of raw materials, effectively is used for the treatment to the barbituric acid waste water of producing with dimethyl malonate and urea as the raw materials.
The utility model has the use condition that the barbital production wastewater enters the neutralization regulating tank from the barbital production wastewater storage pool A through the grille in front of the neutralization regulating tank 1, remove large suspended matters, floaters, fiber substances and solid particles in water, a sodium hydroxide (NaOH) solution with the mass concentration of 15% is added into the neutralization regulating tank through the chemical adding port of the neutralization regulating tank 1 by the first automatic chemical adding device 3, the pH value is regulated at 6-9, and the aeration is carried out to the neutralization regulating tank by the air blower 16 through the microporous aeration disc at the bottom of the neutralization regulating tank 1, the volume ratio of aeration quantity to wastewater is 1: 1, the pretreatment is 12-24h, the neutralization regulation is carried out to the wastewater, a part of Chemical Oxygen Demand (COD) is removed, Biochemical Oxygen Demand (BOD) is removed, the wastewater after the neutralization regulation is pumped into the chemical adding machine 5 through the pump 2, Polymeric Aluminum Chloride (PAC) and Polyacrylamide (PAM) are added into the air floatation machine 5 through the chemical adding port of the air floatation machine 5, the addition amount is as follows: 30-50mg/L of polyaluminium chloride, when in use, preparing an aqueous solution with the mass concentration of 10-15%, 1-2mg/L of polyacrylamide, when in use, preparing an aqueous solution with the mass concentration of 0.1%, staying in an air floatation machine for reaction for 20-30min, removing 80-90% of SS and a small amount of COD in water after treatment by the air floatation machine, and discharging sludge generated in the air floatation machine 5 into a sludge tank 20 through a sludge outlet;
the wastewater treated by the air flotation machine enters a triple-effect evaporator or MVR evaporator 6 for evaporation and concentration treatment to form salt-containing concentrated water with the pH value of 7, so that conditions are created for subsequent biochemical treatment;
the concentrated water containing salt after evaporation and concentration enters a comprehensive regulating reservoir 7, aeration is carried out in the comprehensive regulating reservoir 7 by a blower 16, the volume ratio of aeration quantity to the concentrated water containing salt is 1: 1, the reaction regulating time is 12-24h, and the wastewater is comprehensively regulated;
get into first flocculation and precipitation pond 8 through synthesizing equalizing basin 7, add aluminium Polychlorid (PAC) and Polyacrylamide (PAM) in to first flocculation and precipitation pond 8 through third automatic reagent feeding device 9 simultaneously, the addition is: 30-50mg/L of polyaluminium chloride, which is prepared into an aqueous solution with the mass concentration of 10-15% when in use, 1-2mg/L of polyacrylamide, which is prepared into an aqueous solution with the mass concentration of 0.1% when in use, further removes a part of residual SS, COD and BOD, reduces the subsequent ozone adding amount, saves the operation cost, and has the retention time of 1h in the first flocculation sedimentation tank 8;
the wastewater treated by the first flocculation sedimentation tank 8 enters an ozone pre-oxidation tank 11, an ozone generator 10 conveys ozone into the ozone pre-oxidation tank 11 through an aeration disc for aeration, meanwhile, hydrogen peroxide with the mass concentration of 30% is added into the ozone pre-oxidation tank 11, the aeration time is 0.5-1.5h, the adding amount of the ozone is 400mg/L, and the adding amount of the hydrogen peroxide is 200 mg/L;
pumping the wastewater treated by the ozone pre-oxidation tank 11 into an IC anaerobic reactor 12, reacting for 12-36h, degrading organic matters in the water into methane and carbon dioxide by methanogens in the IC anaerobic reactor 12, and realizing the high-efficiency removal of COD and BOD;
the anaerobic tank 13, the anoxic tank 14 and the contact oxidation tank 15 form an AAO process system, wastewater after reaction treatment of the IC anaerobic reactor 12 flows through the anaerobic tank 13, the anoxic tank 14 and the contact oxidation tank 15, and simultaneously is aerated into the contact oxidation tank 15 by a blower 16 through a microporous aeration disc at the bottom of the contact oxidation tank, the gas-water ratio is 20: 1, the retention time in the contact oxidation tank 15 is 15-20h, and the volume ratio of the anaerobic tank 13, the anoxic tank 14 and the contact oxidation tank 15 is 1: 3; after AAO process treatment, COD and BOD are greatly removed again, and simultaneously, ammonia nitrogen in the sewage is converted into nitrogen through nitrification of nitrifying bacteria and denitrification of denitrifying bacteria, so that ammonia nitrogen pollutants and Total Nitrogen (TN) in the water are also removed, and Total Phosphorus (TP) in the wastewater is removed through anaerobic phosphorus release of phosphorus accumulating bacteria and aerobic phosphorus absorption;
after the wastewater treated by the AAO process enters a secondary sedimentation tank 17 for sedimentation for 1.5h, sludge is pumped into a sludge tank 20 from a sludge outlet of the secondary sedimentation tank 17, meanwhile, a sludge conditioning agent (conventional technology) is added by a chemical adding device 22, and the treated sludge is dehydrated and transported out by a sludge dehydrator 21; pumping the wastewater into a second flocculation sedimentation tank 18, staying for 2 hours, pumping sludge in the second flocculation sedimentation tank 18 into a sludge tank 20, simultaneously adding a sludge conditioning agent (conventional technology) by a dosing device 22, and dehydrating and transporting the treated sludge by a sludge dehydrator 21;
the wastewater in the second flocculation sedimentation tank 18 is pumped into a filter tank 19, quartz sand with the particle size of 1-2mm, activated carbon with the thickness of 300-400mm and the particle size of 0.8-1.6mm, the thickness of 400mm and the flow rate of 12-15m/s are filled in the filter tank, and the wastewater is discharged through a wastewater drainage pipeline after being filtered, so that the treatment of the wastewater in the barbituric acid production is realized.
As can be seen from the foregoing, the utility model discloses equipment design scientific and reasonable, easy operation, convenient to use, it is effectual, to the present big creation on the barbituric acid waste water treatment who uses dimethyl malonate and urea as the raw materials, through the test with use on the spot, compare with prior art, have following outstanding characteristics:
(1) the treatment method of barbituric acid wastewater generated by condensation and acidification of dimethyl malonate and urea serving as raw materials is rarely reported in papers and patents. The utility model discloses set the beginning from strengthening the preliminary treatment, before getting into biochemistry, before traditional triple effect evaporation or MVR technology carry out the crystallization desalination, carry out neutralization and air supporting materialization processing to the workshop raw water earlier, the purpose is got rid of insoluble COD, SS, a small amount of oils in the raw water to alleviate the daily scale deposit degree of follow-up evaporimeter.
(2) Generally, for various waste water with poor biodegradability, technologies such as iron-carbon micro-electrolysis, a Fenton method, ozone oxidation and the like are adopted at present, the purpose is to break chains of organic matters and degrade the organic matters so as to improve the biodegradability of the waste water, but the methods are difficult to take effect on partial heterocyclic organic matters with large requirements on chain breaking chemical energy. The utility model adopts the cooperative combination technology of materialization and ozone catalytic oxidation/H2O 2 aiming at the characteristics of higher ammonia nitrogen, high SS, higher COD, poor biodegradability, high chroma and the like of the desalted waste water, can improve the biodegradability of the wastewater, can remove a large amount of SS through physicochemical property before biochemical treatment, can oxidize ammonia nitrogen through ozone and hydrogen peroxide catalysis through degradation of dyeing groups, realizes the synergistic removal of COD, SS, ammonia nitrogen and chromaticity, has the removal rate of more than 99 percent, meanwhile, compared with the traditional method, the method has the advantages of small mud yield which is only 30 percent of the mud yield in the prior art, no need of pH adjustment, simple operation and maintenance, convenient outward transportation (burying), great realization of environmental protection, and the equipment can also be matched with a controller to realize automatic control, so that the load of subsequent biochemical reaction is greatly reduced.
(3) And a large amount of ammonia nitrogen is removed before the biochemical treatment, the concentration of the ammonia nitrogen entering aerobic biochemical treatment is reduced, the nutrient supply required by the oxidation (nitration) of the ammonia nitrogen is correspondingly reduced, the total aeration amount required by an aerobic biochemical system is reduced, the energy consumption is reduced, and the energy consumption is saved by more than 50%.
(4) The method has the advantages of being wide in application range, suitable for not only newly-built projects but also for modification of the sewage treatment station of the type of production enterprises, convenient in equipment customization and processing, small in occupied area, easy to modify on site and the like, easy to popularize and apply, and great in economic and social benefits.
Claims (7)
1. A barbituric acid production wastewater treatment device taking dimethyl malonate and urea as raw materials comprises a neutralization regulating tank, an air floatation machine, a three-effect evaporator, a comprehensive regulating tank, a flocculation sedimentation tank, an air blower, a contact oxidation tank, a sedimentation tank and a filter tank, and is characterized in that a barbituric acid production wastewater inlet of the neutralization regulating tank (1) is communicated with a water outlet pipeline of a barbituric acid production wastewater storage tank (A), a water outlet of the neutralization regulating tank (1) is communicated with a sewage inlet of the air floatation machine (5) through a sewage pump (2), a sewage outlet of the air floatation machine (5) is communicated with a water inlet of the three-effect evaporator (6), a water outlet of the three-effect evaporator (6) is communicated with a water inlet of the comprehensive regulating tank (7), a water outlet of the comprehensive regulating tank (7) is communicated with a water inlet of a first flocculation sedimentation tank (8), a water outlet of the first flocculation sedimentation tank (8) is communicated with a water inlet of an ozone pre-oxidation tank (11), the water outlet of the ozone pre-oxidation tank (11) is communicated with the water inlet of the IC anaerobic reactor (12), the water outlet of the IC anaerobic reactor (12) is communicated with the water inlet of the anaerobic tank (13), the water outlet of the anaerobic tank (13) is communicated with the anoxic tank (14), the water outlet of the anoxic tank (14) is communicated with the water inlet of the contact oxidation tank (15), the water outlet of the contact oxidation tank (15) is communicated with the water inlet of the secondary sedimentation tank (17), the water outlet of the secondary sedimentation tank (17) is communicated with the water inlet of the second flocculation sedimentation tank (18), the water outlet of the second flocculation sedimentation tank (18) is communicated with the water inlet of the filter tank (19), and the water outlet of the filter tank (19) is communicated with a treated sewage discharge pipeline to form a wastewater treatment structure.
2. The treatment equipment for the barbituric acid production wastewater by taking dimethyl malonate and urea as raw materials according to claim 1, wherein a first automatic dosing device (3) is arranged on a dosing port of the neutralization adjusting tank (1), a second automatic dosing device (4) is arranged on a dosing port of the air flotation machine (5), and a third automatic dosing device (9) is arranged on a dosing port of the first flocculation sedimentation tank (8).
3. The apparatus for treating barbituric acid production wastewater using dimethyl malonate and urea as raw materials according to claim 1, wherein aeration discs with micropores are arranged at the bottoms of the air flotation machine (5), the comprehensive adjusting tank (7) and the contact oxidation tank (15), and are communicated with a blower (16) through the aeration discs, and the blower (16) is a roots blower.
4. The apparatus for treating barbituric acid industrial wastewater using dimethyl malonate and urea as raw materials according to claim 1, wherein an ozone inlet of the ozone pre-oxidation tank (11) is communicated with an outlet of the ozone generator (10), and the ozone generator (10) supplies ozone to the ozone pre-oxidation tank (11) for aeration.
5. The apparatus for treating barbituric acid production wastewater using dimethyl malonate and urea as raw materials according to claim 1, wherein the sludge outlets of the secondary sedimentation tank (17) and the first flocculation sedimentation tank (8) are communicated with the inlet of a sludge tank (20), and the outlet pipeline of the sludge tank (20) is provided with a sludge conditioning agent dosing device (22) and is communicated with the inlet of a sludge dewatering machine (21).
6. The apparatus for treating barbituric acid production wastewater using dimethyl malonate and urea as raw materials according to claim 1, wherein the neutralization regulating tank (1) is of a steel concrete structure, four-oil three-cloth corrosion prevention is performed on the inner wall of the tank, the gap between grids is 10mm, the flow rate of passing the grids is 0.6-0.8m/s, and the inclination angle of the grids is 60 degrees.
7. The apparatus for treating barbituric acid production wastewater using dimethyl malonate and urea as raw materials according to claim 1, wherein the comprehensive adjusting tank (7) is of a steel concrete structure, the inner wall of the tank wall is subjected to four-oil three-cloth corrosion prevention, grids are arranged in the comprehensive adjusting tank (7), the grid clearance is 3mm, the flow rate of the grids is 0.6-0.8m/s, and the inclination angle of the grids is 60-75 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023314778.XU CN214218494U (en) | 2020-12-31 | 2020-12-31 | Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023314778.XU CN214218494U (en) | 2020-12-31 | 2020-12-31 | Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214218494U true CN214218494U (en) | 2021-09-17 |
Family
ID=77707662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023314778.XU Active CN214218494U (en) | 2020-12-31 | 2020-12-31 | Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214218494U (en) |
-
2020
- 2020-12-31 CN CN202023314778.XU patent/CN214218494U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106927628A (en) | Light electrolysis-Fenton-EGSB-A/O-BCO-BAF-coagulating treatment pharmacy waste water technique | |
| CN102107988B (en) | Phenol-amine wastewater treatment and recycling method and device | |
| CN111573991B (en) | Chemical plating comprehensive wastewater treatment method | |
| CN102603128A (en) | Method for advanced treatment and recycling of landfill leachate | |
| CN109824220A (en) | A kind of Biochemical Process for Treating Coke Plant Wastewater | |
| CN109111019B (en) | Method and system for treating high-concentration and degradation-resistant chemical synthesis pharmaceutical wastewater | |
| CN112047583A (en) | Slaughterhouse sewage treatment process | |
| CN112591951A (en) | Catalytic electrolysis purification system and purification method for municipal sewage | |
| CN112607963A (en) | System and method for reducing percolate concentrated solution of waste incineration plant | |
| CN113620541A (en) | System and method for cooperatively treating brewing wastewater and low-carbon domestic sewage | |
| CN210736456U (en) | Treatment device for zero discharge of garbage leachate in garbage incineration power station | |
| CN114133117A (en) | Full-scale treatment system and treatment method for supernatant liquid of sludge dewatering | |
| CN107973488B (en) | Method for denitrification treatment of ammonia nitrogen wastewater | |
| CN114291942A (en) | Catalytic electrolysis municipal sewage purification system and purification method | |
| CN107935303B (en) | Process for recycling power plant boiler water from municipal secondary effluent | |
| CN212770367U (en) | Slaughterhouse sewage treatment system | |
| CN109437447A (en) | A kind of preprocess method of guanine waste water | |
| CN216737990U (en) | Deep treatment system capable of achieving III-class water standard of surface water | |
| CN112707600A (en) | Treatment method of barbituric acid production wastewater by taking dimethyl malonate and urea as raw materials | |
| CN214218494U (en) | Barbituric acid production wastewater treatment equipment taking dimethyl malonate and urea as raw materials | |
| CN206624744U (en) | Light electrolysis Fenton EGSB A/O BCO BAF coagulating treatment pharmacy waste water systems | |
| CN211445406U (en) | Landfill leachate treatment device | |
| CN110713318B (en) | Treatment system and treatment method for dehydration filtrate after anaerobic digestion of sludge | |
| CN205295072U (en) | Landfill leachate processing apparatus based on anaerobic ammonium oxidation | |
| CN114195332A (en) | Deep treatment system and method capable of achieving surface water III-class water standard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |