CN202465460U - Treatment system used for low-carbon source slightly polluted water source difficult to degrade - Google Patents
Treatment system used for low-carbon source slightly polluted water source difficult to degrade Download PDFInfo
- Publication number
- CN202465460U CN202465460U CN2012200684799U CN201220068479U CN202465460U CN 202465460 U CN202465460 U CN 202465460U CN 2012200684799 U CN2012200684799 U CN 2012200684799U CN 201220068479 U CN201220068479 U CN 201220068479U CN 202465460 U CN202465460 U CN 202465460U
- Authority
- CN
- China
- Prior art keywords
- unit
- treatment system
- water
- mbr
- pump
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a treatment system used for a low-carbon source slightly polluted water source difficult to degrade. The treatment system comprises a Fenton oxidation unit, and an air-floating deslagging unit and a reinforcing A2O unit which are sequentially connected with the Fenton oxidation unit by using pipelines, wherein a water passing pump is arranged on a connecting pipeline between the air-floating deslagging unit and the reinforcing A2O unit, a backflow pipeline of the reinforcing A2O unit is provided with an MBR unit, and the MBR unit comprises a water outlet and a vent nozzle. By utilizing the MBR unit for replacing a secondary sedimentation tank in the conventional A2O process, the occupied area can be greatly saved, the hydraulic retention time can be shortened, and the treatment efficiency can be improved. Meanwhile, the treatment system plays a major role in stabilizing effluent water and improving the resistance to impact load of the system. The treatment system can give play to respective advantages of technologies to supplement each other, and realizes that low-concentration comprehensive organic chemical wastewater with complex water quality compositions meets the discharge standard Class I in Integrated Wastewater Discharge Standard (GB8978-1996) after treatment.
Description
Technical field
The utility model relates to a kind of Sewage treatment systems, relates in particular to a kind of treatment system that is used for low carbon source difficult degradation micro polluted source.
Background technology
Tenth Five-Year Plan Period, the oil and the chemical industry garden of industries such as China's oil chemical industry, Coal Chemical Industry, gas chemical industry, salt chemical engineering in area and central and west regions coastal, riverine and part chemical industry solid foundation, have obtained fast development.
On the one hand, the rise of chemical industry has spurred the development of local economy; On the other hand, because chemical industry belongs to height and causes dirty industry, local water environment protection problem is faced a severe test.Generally; The efflux wastewater of each manufacturing enterprise in the garden; At first will pass through own treatment facility reaches " integrated wastewater discharge standard " and (GB8978-1996) converges that composite wastewater treatment plant focuses on to the garden after three grades of requirements; At this moment water outlet performance assessment criteria will be strict more, in most cases can rise to the primary standard in " integrated wastewater discharge standard ".Therefore, the COD in the effluent quality
Cr, projects such as BOD and nitrogen, phosphorus stably reaching standard will be the rigid index of estimating sewage treatment process.
The universals of wastewater from chemical industry raw water quality are to contain hard-degrading high concentrated organic pollutant and be rich in the material nitrogen that is prone to cause body eutrophication, phosphorus etc., and the mixing wastewater from chemical industry that reaches three grades of emission standards demonstrates some its distinctive character.At first, after biochemical or materialization processing to a certain degree, the organic contamination substrate concentration in the water body generally reduces, and shows the characteristics of little pollution, low carbon source, but the solubility hardly degraded organic substance of Degradation and Transformation one-tenth also remains in the water body; Secondly, the content of nitrogen, phosphorus, petroleum substance etc. satisfies three grades of emission standards, but also has certain gap with first discharge standard; In addition, not as the colourity that effluxes limiting factor etc., in first discharge standard, need to handle up to standard in three grades of emission standards; At last,, also demonstrate certain complex characteristics, mainly show the adding up of various and toxicant of organic substance as the composite waste of chemical industry.
In practice, how the treatment process that adopts to chemical industrial park comprehensive wastewater water quality characteristics solves the quality problem of certain single aspect emphatically.As under the competent situation of carbon source, A/A/O is the main technique that realizes synchronous denitrification dephosphorizing, and very little for the treatment effect of other impurity in the water body; Perhaps adopt the form of A/A/O+ chemical dephosphorization combination process; The intensified denitrification and dephosphorization effect; Thereby overcome the carbon source contradictory problems of dephosphorization and denitrogenation; But can not distinctive impurity in the chemical industry waste water (like oil pollutant etc.) be removed, the effluent quality after the processing can not reach " integrated wastewater discharge standard " first discharge standard in (GB8978-1996).
The utility model content
To the water quality characteristics of chemical industrial park comprehensive wastewater, overcoming traditional denitrification dephosphorization technique (A
2O) on the basis of defective; Organically combine with other advanced water treatment method; The utility model provides a kind of treatment system that is used for low carbon source difficult degradation micro polluted source; Thereby can bring into play technological separately advantage, complement each other, realize meeting " integrated wastewater discharge standard " (GB8978-1996) middle first discharge standard after lower concentration, the comprehensive organic chemical waste water that water-quality constituents is complicated are handled.
In order to solve the problems of the technologies described above, the utility model is used for the technical scheme that the treatment system of low carbon source difficult degradation micro polluted source is achieved and is: comprise the Fenton oxidation unit, be connected with air supporting slagging-off unit in order and strengthen A with pipeline with said Fenton oxidation unit
2The O unit, said air supporting slagging-off unit and said reinforcement A
2Connecting pipeline between the O unit is provided with one and crosses water pump, said reinforcement A
2The unitary return line of O is provided with the MBR unit, and said MBR unit comprises water outlet and drain.
Compared with prior art, the beneficial effect of the utility model is:
1, adding an amount of Fenton's reaction reagent (is H
2O
2+ Fe
2+), the OH that produces through its effect has extremely strong oxidation capacity, is specially adapted to the oxide treatment of bio-refractory or the general reluctant organic waste water of chemical oxidation.Therefore, after the processing to the chemical industrial park comprehensive wastewater, improve wastewater biodegradability 30%, reduced the content of solubility hardly degraded organic substance, increase the organism amount of carbon source capable of using.
2, utilize air supporting slagging-off unit can remove sediment impurity and the part oil pollutant that waste water produces behind chemical oxidation, its advantage is to practice thrift investment, and floor space is little, and efficient is high, effect is good.
3, waste water has produced part carbon source material capable of using through front end chemical oxidation system, therefore can suitably shorten A
2The hydraulic detention time of anaerobic zone in the O system; And, can better bring into play the nitrification of nitrifier through add fixedly filler of obligate bacterium at aerobic unit.
4, be in the terminal MBR system of integrated artistic, be in the running status of high-solubility oxygen, low organic loading for a long time, the microenvironment in the reactor drum helps growth and the accumulation of autotrophy nitrifier; In addition, membrane filtration system can guarantee that to the efficient crown_interception of mikrobe generation time, long autotrophy nitrifier can not run off, thereby can improve the nitrification effect of integrated artistic.In addition, but also the degree of depth is removed other impurity such as macromolecular colloid attitude phosphorus containg substances etc., thereby can further reduce the water outlet total phosphorus concentration; And the terminal MBR that is provided with, because the reactive system of front end has consumed most of COD, the also existing removal to a certain degree of nitrogen phosphorus, the formation that therefore can slow down Film impurity in the membrane module greatly.At last, MBR replaces traditional A
2Second pond in the O technology can be saved floor space greatly, shortens hydraulic detention time, improves processing efficiency, simultaneously, and for stablizing water outlet and the capacity of resisting impact load performance significant role that improves system.
Description of drawings
Fig. 1 is the schema of the utility model single unit system system;
Fig. 2 is that the utility model is the structural representation of single unit system system;
Among the figure:
A-Fenton oxidation unit 1-oxygenant medicine system 2-catalyzer medicine system
3-pH regulates medicine system 4-water-in 5-aerating pipelines
6-crosses mouth of a river 7-whipping appts 8-water outlet
B-air supporting slagging-off unit 9-pH regulates medicine system 10-flocculation medicine system
11-whipping appts 12-air supporting machine 13-sludge pump
C-strengthens A
2O unit 14-crosses water pump 15-water-in
16-refluxing opening 17-crosses mouth of a river 18-aerating pipelines
19-crosses mouth of a river 20-biologic packing material 21---submersible sewage pump
22-surmounts pipeline
D-MBR unit 23-water-in 24-drain
25-MBR membrane module 26-film district air main 27-film district rising pipe
28-membrane support aeration arm 29-water outlet suction pump 30-reflux pump.
Embodiment
Below in conjunction with embodiment the utility model is done to describe in further detail.
As depicted in figs. 1 and 2, the utility model is a kind of treatment system that is used for low carbon source difficult degradation micro polluted source, comprises Fenton oxidation unit A, and said Fenton oxidation unit A is connected with air supporting slagging-off unit B in order and strengthens A with pipeline
2O unit C, said air supporting slagging-off unit B and said reinforcement A
2Connecting pipeline between the O unit C is provided with one and crosses water pump 14, said reinforcement A
2The return line of O unit C is provided with the MBR cells D, and said MBR cells D comprises water outlet and emptying 24.As shown in Figure 2, said Fenton oxidation unit A comprises oxygenant chemicals dosing plant 1, catalyzer chemicals dosing plant 2 and the pH regulator chemicals dosing plant 3 that is arranged on the suction culvert of oxidizing reaction pond; Said oxidizing reaction is provided with aerating pipelines 5 in the pond, and a side that in said oxidizing reaction pond, is positioned at water outlet is provided with a baffle plate, and the bottom of said baffle plate was provided with the mouth of a river 6, is provided with whipping appts 7 said the mistake between the mouth of a river 6 and the said water outlet 8.Said air supporting slagging-off unit B comprises the pH regulator chemicals dosing plant 9 and flocculation chemicals dosing plant 10 that is arranged on air supporting machine 12 suction culverts; The slag-drip opening place of said air supporting machine 12 is provided with sludge sump and sludge pump.Said reinforcement A
2O unit C comprises anaerobic zone, oxygen-starved area, aerobic packed column reactor and aerating pipelines 18, is provided with submersible sewage pump 21 in the said settling tank, and the pump discharge of said sludge pump 21 is connected to the water inlet 23 of said MBR cells D through suction culvert.Be provided with many group MBR membrane modules 25 and reflux pump 30 in the said MBR cells D, the pump discharge of said reflux pump 30 is connected to said reinforcement A through return line
2The backflow 16 of O unit C, the external pipeline of said water outlet is provided with water outlet suction pump 29.
Certainly; Before Fenton oxidation unit A, can be provided with selectable unit is the pretreatment technology unit, and usually, this pretreatment technology unit comprises fine fack, aerated grit chamber and equalizing tank; Pending waste liquid can be carried out pre-treatment through the pretreatment technology unit earlier, as shown in Figure 1.The water inlet transfer line of system will pass through pretreated waste liquid and feed the oxidizing reaction pond among the Fenton oxidation unit A; Through dosing pipe oxygenant, catalyzer and pH regulator agent are joined in the oxidizing reaction pond again; Question response fully back gets into the suction culvert of air supporting slagging-off unit B from the water outlet 8 of Fenton oxidation unit A; Add flocculation agent and pH regulator agent through chemicals dosing plant, get in the air supporting machine 12 and remove chemical sediment and the impurity in the oxidizing reaction, last mechanical water outlet gets into strengthens A
2O unit C.According to the difference of hydraulic detention time, strengthen A
2O unit C removes the traditional A of continuity
2The advantage of O technology is provided with " anaerobism+anoxic+aerobic ", also in Aerobic Pond, adds the advantage degradation bacteria through screening, and is attached on the aerobic filler.Then, carry water outlet to get into the MBR unit through the pump housing and carry out membrane biological reaction, filter through the unitary water outlet suction pump 29 of MBR at last, water body up to standard is effluxed.
Test Example:
The test materials overview:
Certain chemical industry garden is main with fine chemistry industry industries such as chemical industry, biological medicine, paint industry, and the combined sewage that effluxes that the garden has passed through each independent business processes is mainly taken in by the sewage work that is positioned at the garden.Composite waste has the universals of chemical industry waste water, and promptly the organic pollutant composition is complicated, and biodegradability is relatively poor; To the removal amount of high nitrogen phosphorus, belong to the category of low carbon source waste water, i.e. BOD
5/ TN＜3.According to the result of continuous monitoring, sum up several kinds of typical term purpose desired values and the corresponding water outlet requirement that should satisfy in the staying water, see table 1 for details.
Table 1 influent quality and design effluent quality
| Project | Influent quality | The design effluent quality |
| ?COD cr | 605mg/L | 60mg/L |
| ?BOD 5 | 207mg/L | 20mg/L |
| ?SS | 254mg/L | 20mg/L |
| Ammonia nitrogen (in N) | 51.8mg/L | 8(15mg/L) |
| Total nitrogen (in N) | 76mg/L | 20mg/L |
| Total phosphorus (in P) | 13.8mg/L | 1mg/L |
| ?pH | 5-10 | 6-9 |
| Vegetable and animals oils | 5.1mg/L | 3mg/L |
| Oil | 5.5mg/L | 3mg/L |
In the table 1: the controlling index the when controlling index when the outer numerical value of bracket is water temperature＞12 ℃, the outer numerical value of bracket are water temperature≤12 ℃.
Further explore the organic pollutant type in the waste water by gas chromatography mass spectrometry analytical technology (GCMS); Both comprised in the detected result demonstration case study on implementation water body that easily biodegradable organics (was mainly the better simply lipid acid of molecular structure, alcohol and contains the organism of electron-donating group by force such as hydroxyl, amino on a small quantity; Like phenol etc.); Also comprise labile organic compound (mainly comprise aromatic acid, phenyl amines organism etc., its biological degradability is between easily biodegradable organics and hardly degraded organic substance).All the other major parts are hardly degraded organic substance; Like methoxyl group benzene series thing, multi-substituent aniline and phenol, nitrogen-containing heterocycle compound, o-dinitrobenzene etc., this type organic contains stable phenyl ring (heterocycle) structure mostly, and some also contains strong electron-withdrawing group groups (like chloronitrobenzene) such as halogen atom, nitro simultaneously; The chemical property quite stable; Make mikrobe lack corresponding enzyme and live, thereby be difficult to, and finally form residual COD by effective biochemical degradation
CrComponent continues to exist in water outlet.
The treatment system of utilizing the utility model to be used for low carbon source difficult degradation micro polluted source is handled test materials:
Comprehensive wastewater from plant area at first carries out primary treatment through pretreatment technology unit as shown in fig. 1, reaches to remove PM for particulate matter and part suspended impurity in the water body, and the fully effect of mixing water quality.
Then; Through corresponding apparatus pending waste water is promoted to Fenton oxidation unit A; In the Fenton oxidation unit; Be primarily aimed in the Test Example water body easy degraded with can degradation of organic substances be carried out the oxidation utilization, hardly degraded organic substance transforms, for follow-up biochemical unit provides enough denitrogenation, dephosphorization carbon sources.Water-in 4 positions at Fenton oxidation unit A; At first regulate water body and be strong acidic condition through the work of pH regulator chemicals dosing plant 3; PH=3.5 in this example utilizes oxygenant chemicals dosing plant 1 and catalyzer chemicals dosing plant 2 in water body, to add the Fenton's reaction medicament respectively, according to the treatment process characteristics again; When the mol ratio of control ferrous ion and hydrogen peroxide is 1:8, residence time 1.5h.During this time; Utilize the aerating pipelines of laying at the bottom of the oxidizing reaction pond 5 to reach the purpose of the abundant mixing reaction of medicament; Waste water passed through the mouth of a river 6 after reaction finished; Arrive oxidizing reaction pond end again through the work of whipping appts 7, the residual and reaction of anti-oxidation medicament is incomplete, arrives air supporting slagging-off unit B through water outlet 8 at last.
Before getting into air supporting slagging-off unit B, the work that at first will pass through pH regulator chemicals dosing plant 9 makes waste water be alkaline condition, adds corresponding flocculation agent and coagulant aids through flocculation chemicals dosing plant 10 then; And utilizing the whipping appts 11 in the air supporting machine to make the abundant mixing of medicament, the suspended substance behind the stop 20min in the waste water is under the effect of flocculation agent, after aggregated particles becomes greatly gradually; The micro-bubble that utilizes air supporting machine 12 to produce is again held out the water surface with it; With scraper plate it is removed, make that suspended substance descends greatly in the waste water, alleviate subsequent disposal pressure; The water outlet clarification that becomes, sludge pump 13 are mainly used in the mud sediment of carrying air supporting slagging-off unit B.
Utilization is arranged on said air supporting slagging-off unit B and said reinforcement A
2The water pump 14 of crossing between the O unit C on the connecting pipeline makes water body through strengthening A
2The unitary water-in 15 of O flow to strengthens A
2O unit C.Owing to produced part carbon source material capable of using after the waste water process front end chemical oxidation treatment, therefore can suitably shorten at this reinforcement A
2The hydraulic detention time of anaerobic zone among the O unit C, therefore, the pond holds corresponding the minimizing.The excessively mouth of a river 17 entering oxygen-starved areas of waste water between anaerobic zone and oxygen-starved area, it is provided with more traditional A
2O technology does not have significant difference, by the dissolved oxygen content in the aerating pipelines 18 control pond bodies.Then; Waste water gets into aerobic packed column reactor (being the aerobic treatment district) through the mouth of a river 19 of crossing between oxygen-starved area and the aerobic packed column reactor again;, realize through adding biologic packing material 20 in the aerobic treatment district, thereby strengthen the purpose of nitrated denitrogenation the immobilization of long nitrobacteria of generation cycle.Waste water is being strengthened A after submersible sewage pump 21 flow to next processing unit
2Be provided with refluxing opening 16 among the O unit C,, strengthening A in order to the backflow of nitrification liquid
2Among the O unit C, can also be provided with according to the characteristic of influent quality and to surmount pipeline 22,, thereby can practice thrift cost for wastewater treatment with the flow direction of flexible control waste water.
Strengthen A
2Waste water after O unit C handles gets into the MBR cells D through the water-in 23 of MBR cells D, except that having MBR membrane module 25, also is provided with drain 24, film district air main 26, film district rising pipe 27, membrane support aeration arm 28 and reflux pump 30 etc. in the MBR cells D.Wherein, thereby reflux pump 30 is used to satisfy the needs of nitrification liquid backflow denitrogenation, and through the work of water outlet suction pump 29, water body gets final product standard discharge.
To the water body of experimental study material, through the operational monitoring of total system, effluent quality can reach COD basically
Cr＜55mg/L, BOD
5＜20mg/L, ammonia nitrogen＜8mg/L, total nitrogen＜17mg/L, total phosphorus＜1mg/L, vegetable and animals oils＜2mg/L and oil＜2mg/L promptly satisfy design water outlet requirements in water quality.
Although top combination figure is described the utility model; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the utility model.
Claims (5)
1. a treatment system that is used for low carbon source difficult degradation micro polluted source comprises Fenton oxidation unit (A), it is characterized in that: also comprise the air supporting slagging-off unit (B) and the reinforcement A that are connected in order with pipeline with said Fenton oxidation unit (A)
2O unit (C), said air supporting slagging-off unit (B) and said reinforcement A
2Connecting pipeline between the O unit (C) is provided with one and crosses water pump (14), said reinforcement A
2Be in series with MBR unit (D) on the return line of O unit (C), said MBR unit (D) is provided with water outlet (27) and drain (24).
2. the treatment system that is used for low carbon source difficult degradation micro polluted source according to claim 1, it is characterized in that: said Fenton oxidation unit (A) comprises oxygenant chemicals dosing plant (1), catalyzer chemicals dosing plant (2) and the pH regulator chemicals dosing plant (3) that is arranged on the suction culvert of oxidizing reaction pond; Be provided with aerating pipelines (5) in the said oxidizing reaction pond, a side that in said oxidizing reaction pond, is positioned at water outlet is provided with a baffle plate, and the bottom of said baffle plate was provided with the mouth of a river (6), is provided with whipping appts (7) said the mistake between the mouth of a river (6) and the said water outlet (8).
3. the treatment system that is used for low carbon source difficult degradation micro polluted source according to claim 1 is characterized in that: said air supporting slagging-off unit (B) comprises pH regulator chemicals dosing plant (9) and the flocculation chemicals dosing plant (10) that is arranged on air supporting machine (12) suction culvert; The slag-drip opening place of said air supporting machine (12) is provided with sludge sump and sludge pump (13).
4. the treatment system that is used for low carbon source difficult degradation micro polluted source according to claim 1 is characterized in that: said reinforcement A
2O unit (C) comprises anaerobic zone, oxygen-starved area, aerobic packed column reactor and aerating pipelines (18), is provided with submersible sewage pump (21) in the said settling tank, and the pump discharge of said submersible sewage pump (21) is connected to the water-in (23) of said MBR unit (D) through suction culvert.
5. the treatment system that is used for low carbon source difficult degradation micro polluted source according to claim 1; It is characterized in that: be provided with many group MBR membrane modules (25) and reflux pump (30) in the said MBR unit (D), the pump discharge of said reflux pump (30) is connected to said reinforcement A through return line
2The refluxing opening (16) of O unit (C), the external pipeline of said water outlet is provided with water outlet suction pump (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200684799U CN202465460U (en) | 2012-02-28 | 2012-02-28 | Treatment system used for low-carbon source slightly polluted water source difficult to degrade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200684799U CN202465460U (en) | 2012-02-28 | 2012-02-28 | Treatment system used for low-carbon source slightly polluted water source difficult to degrade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465460U true CN202465460U (en) | 2012-10-03 |
Family
ID=46913640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200684799U Expired - Fee Related CN202465460U (en) | 2012-02-28 | 2012-02-28 | Treatment system used for low-carbon source slightly polluted water source difficult to degrade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465460U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319044A (en) * | 2013-06-04 | 2013-09-25 | 绍兴县江滨水处理有限公司 | Processing equipment and processing method for methyldopa sewage |
| CN105330110A (en) * | 2015-12-08 | 2016-02-17 | 神华集团有限责任公司 | Direct coal liquefaction sewage treatment system and method |
| CN106064866A (en) * | 2016-06-14 | 2016-11-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of process technique of dyeing waste water |
-
2012
- 2012-02-28 CN CN2012200684799U patent/CN202465460U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319044A (en) * | 2013-06-04 | 2013-09-25 | 绍兴县江滨水处理有限公司 | Processing equipment and processing method for methyldopa sewage |
| CN103319044B (en) * | 2013-06-04 | 2014-12-10 | 绍兴柯桥江滨水处理有限公司 | Processing method for methyldopa sewage |
| CN105330110A (en) * | 2015-12-08 | 2016-02-17 | 神华集团有限责任公司 | Direct coal liquefaction sewage treatment system and method |
| CN106064866A (en) * | 2016-06-14 | 2016-11-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of process technique of dyeing waste water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101767914B (en) | Method for treating garbage leachate | |
| CN104761097B (en) | It is a kind of suitable for high concentration, the processing method of organic wastewater with difficult degradation thereby total nitrogen | |
| EP3730460B1 (en) | Method for upgrading and expanding sewage biological treatment process | |
| CN101244880B (en) | Advanced treatment method for garbage percolate | |
| CN101157510A (en) | Process for treating antibiotic waste water and usage thereof | |
| CN103253768A (en) | Multi-point water feeding town sewage treatment system and treatment method thereof | |
| CN102491588A (en) | Method and device for sewage treatment | |
| CN106145506A (en) | The apparatus and method of coal chemical industrial waste water Anammox coupling heterotrophic denitrification denitrogenation | |
| CN101659502B (en) | Method for treating waste leachate by utilizing high denitrification shared type Orbal oxidation ditch | |
| CN203558917U (en) | Multi-point water feeding type town sewage treatment system | |
| CN106517516A (en) | Industrial wastewater upgrading and reconstruction biological treatment equipment and treatment technology | |
| CN101863592B (en) | Leachate treatment method for small town household refuse landfill sites | |
| CN202465460U (en) | Treatment system used for low-carbon source slightly polluted water source difficult to degrade | |
| CN105923763A (en) | Permeable sulfur-autotrophic denitrification bio-wall enhanced wastewater denitrification process | |
| CN203295318U (en) | Integrated denitrifying and dephosphorizing MBR device | |
| CN202358992U (en) | Sewage treatment device | |
| CN108996689B (en) | Solid carbon source micro-aeration device and wastewater treatment method thereof | |
| CN100460341C (en) | Biological sewage-treating process | |
| CN101723564B (en) | Garbage percolate treating process by biochemical and membrane separation | |
| CN204848440U (en) | Anaerobic fermentation handles sewage treatment plant who combines together with contact biological oxidation | |
| CN111960537A (en) | System and method for realizing anaerobic ammonia oxidation denitrification of low-ammonia-nitrogen wastewater by using side anaerobic high-pH and FA to inhibit NOB | |
| CN101746884A (en) | Method of capacity enhancement and advanced treatment for sewage treatment plant and use | |
| CN110697991A (en) | Garbage leachate biological treatment process and system | |
| CN217025694U (en) | Sewage treatment device suitable for LNG receiving station | |
| CN109354316A (en) | A kind of low-temperature wastewater treatment technique can reach IV class standard of surface water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20170228 |