CN104724826A - Biochemical treatment method of industrial wastewater and aerobic tank - Google Patents
Biochemical treatment method of industrial wastewater and aerobic tank Download PDFInfo
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- CN104724826A CN104724826A CN201510129401.1A CN201510129401A CN104724826A CN 104724826 A CN104724826 A CN 104724826A CN 201510129401 A CN201510129401 A CN 201510129401A CN 104724826 A CN104724826 A CN 104724826A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/163—Nitrates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/166—Nitrites
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- 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
Abstract
The invention discloses a biochemical treatment method of industrial wastewater and an aerobic tank. The biochemical treatment method of industrial wastewater comprises a multifunctional denitrification tank and an aerobic tank. An HSBEMBM environmental management microbial preparation is added to both the multifunctional denitrification tank and the aerobic tank; mixed liquid in the aerobic tank partially returns to the multifunctional denitrification tank, the aerobic tank is provided with a plurality of return openings in the flow direction of the aerobic tank and the return openings are all communicated with return pipelines, wherein the return opening at the tail end is normally open. The aerobic tank adopts an S-shaped corridor so that water flows in the corridor. The aerobic tank is mainly responsible for decarburization and partial nitrification. The plurality of return openings are arranged in the corridor in the aerobic tank so that the return positions and return quantity are adjusted according to the inlet water quality and the operation condition of the whole system. Due to arrangement of the return openings, the different return positions and return quantity can be adjusted in time during the implementation process; therefore, high-efficiency denitrification is realized and COD is removed; moreover, the denitrification efficiency and the buffer resistance of the system are improved.
Description
Technical field
The present invention relates to industrial waste water treatment, particularly relate to a kind of method of biochemical treatment trade effluent, and Aerobic Pond used in biochemical treatment process.
Background technology
Utilizing biochemical technology process waste water, especially carry out the process of removing total nitrogen etc., has been rather ripe operational path.Applicant has also done a lot of research at this point, applies for the patents of invention such as 200710164865,201210242756.The common ground of all these operational paths comprises pretreatment unit, biochemical treatment unit and advanced treatment unit, and its core is biochemical treatment unit, by the combination of different oxygen consumption conditions, and various state modulator, reach different treatment effects.In biochemical treatment unit, need to add certain microorganism, and in reaction process, need according to different wastewater conditions, control each processing parameter and backflow situation.In prior art, sludge reflux is all just reserved when design technology route, and namely planner is according to the particular case of pending engineering, design waste water treatment engineering, and design comprises the parameters of reflux type, reflux ratio.And we find in engineering actual moving process, water is not unalterable, and the treatment effect of biochemical stage also can be variant, and in the case, maintaining fixing reflux type is not best bet.
Summary of the invention
The object of the invention is the method proposing the better biochemical treatment trade effluent of a kind of reflowing result.
Another object of the present invention is to provide a kind of Aerobic Pond that can be used for aforesaid method.
For this reason, the technical solution used in the present invention is such:
A kind of method of biochemical treatment trade effluent, comprise multi-functional denitrification tank and Aerobic Pond, multi-functional denitrification tank and Aerobic Pond add HSBEMBM environmental improvement microbial preparation respectively, the mixed solution of Aerobic Pond is partly refluxed to multi-functional denitrification tank, it is characterized in that: Aerobic Pond has several refluxing openings in its flow direction, all be communicated with reflux line, wherein the refluxing opening of end keeps often opening; When ammonia nitrogen concentration ratio reaches 1:1.6 ~ 2.5 in the nitroso-group nitrogen concentration on all the other refluxing opening positions and multi-functional denitrification tank, open the reflux pump at refluxing opening place, make mixed solution be back to multi-functional denitrification tank from here simultaneously.
Further, described Aerobic Pond adopts the gallery of " S " type, and current are flowed in gallery; Gallery offers three refluxing openings, be located at 1/3 place of flow process, 2/3 place and destination county respectively.
Further, current reflux at 2/3 place of gallery and destination county simultaneously, and the quantity of reflux ratio of 2 is 6:4.
For realizing second goal of the invention, the technical scheme adopted is such: a kind of Aerobic Pond, is characterized in that: the gallery forming " S " type in pond; Gallery offers several refluxing openings, each refluxing opening is all provided with reflux pump.
Further, gallery offers three refluxing openings, be located at 1/3 place of flow process, 2/3 place and destination county respectively.
Multi-functional denitrification tank, is called for short HLA pond, under anoxic conditions, is nitrogen by denitrifying bacterium by nitrate, nitroso-group nitrogen transformation, or is the process of nitrogen by anaerobic ammonia oxidizing bacteria by nitroso-group nitrogen and mineralized nitrogen, thus reaches the function of denitrogenation; Organism is converted into the material of intermediate state, small molecules or CO by all the other the heterotroph microorganisms simultaneously in bacterium colony group
2deng, play the effect of decarburization, therefore named multi-functional denitrification tank.
HSBEMBM environmental improvement microbial preparation is commercially available conventional bacterial classification, is that current effect is best, commercial applications one of microbial strains the most widely.
In the present invention, HLA and Aerobic Pond add HSBEMBM environmental improvement microbial preparation respectively, HLA mainly bears acidication function, also bear denitrification and Anammox function simultaneously, Aerobic Pond bears the function of main decarburization and short distance nitration, in the gallery of Aerobic Pond, multiple refluxing opening is set, be back to HLA pond, namely adopt on " S " type gallery at Aerobic Pond, multiple refluxing opening installed by whole gallery, as at 1/3 of gallery, 2/3, end all installs back head piece, running condition according to influent quality and whole system adjusts backwash deployment and quantity of reflux, namely the ammonia nitrogen concentration ratio in the nitroso-group nitrogen concentration and HLA pond of Aerobic Pond gallery refluxing opening position can reach 40%-60%, the pump opening this refluxing opening carries out mixed-liquor return, be back to HLA pond, make HLA pond can be in short-cut nitrification and denitrification or anaerobic ammonium oxidation process, the denitrification effect of effective raising system, thus multiple refluxing opening is installed so that the different backwash deployment of adjustment and quantity of reflux realize the function (short-cut nitrification and denitrification of regulator control system of efficient denitrification in time in implementation process, Anammox function) while remove COD, the nitric efficiency of raising system and anti-surge capability, thus reduce rear end A(anoxic pond)/O(second Aerobic Pond) system (if any) load, by the mud-water separation of settling tank, water outlet enter follow-up anoxic pond and Aerobic Pond form traditional A/O system (if any), further removal of carbon and nitrogen, guarantees the qualified discharge of the final outflow water of system, mud-water separation is carried out again, bio-chemical effluent access advanced treatment system by settling tank.
To reflux in 2/3 gallery position of Aerobic Pond and end and its quantity of reflux ratio is respectively 60% and 40% simultaneously, have preferably removal effect to decarburization and denitrogenation.Biochemical stage water outlet COD is down to below 120mg/L simultaneously, ammonia nitrogen < 0.5mg/L, total nitrogen < 20mg/L, volatile phenol < 0.2mg/L, petroleum-type < 1mg/L, colourity is down to less than 140 times.And if only in end backflow, water outlet total nitrogen, near 40-60mg/L, adds advanced treatment load, may cause final outflow water total nitrogen (in GB16171-2012, table 2 directly discharges) not up to standard.Visible, the present invention has very large effect to the effect improving biochemical treatment.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention process flow sheet.
Fig. 2 is Aerobic Pond mixed-liquor return schematic diagram.
Embodiment
See accompanying drawing.In Fig. 1, A is blue charcoal waste water; B is residual ozone; C is excess sludge; D is sludge reflux; E is mixed-liquor return; F is water outlet or reuse.
Blue charcoal waste water in this engineering from certain Lan Tan factory via the waste water after ammonia still process, dephenolize, oil removing pre-treatment, be made up of phenolic wastewater and oily(waste)water two portions (flooding quantity with 4:6), water-quality guideline is as shown in table 1, is 1m by the process design flooding quantity of Fig. 1
3the plant running of/h.Wherein the first Aerobic Pond separates and is divided into three sections, is respectively 31,32,33, and the gallery of a common composition S shape, current flow wherein in the direction of arrows.Gallery offers three refluxing openings 11,13,12, as seen from the figure, they are located at 1/3 place of flow process, 2/3 place and destination county respectively.
The present embodiment overall process process is as follows.
1) pretreatment system:
Blue charcoal waste water enters oil trap, remove most heavy oil and part light oil, enter the process of secondary cavitation air flotation after entering equalizing tank homogenization treatment, every grade adds quaternary amine multipolymer and is about 10mg/L, remove most oil in water emulsion and oil slick, remove most of undissolved suspended matter simultaneously.
2) biochemical system:
Pre-treatment water outlet enters PASAB reaction tank, fully mix with excess sludge, simultaneously according to practical situation, add carrier and biological enzyme inducible factor, choosing mixture concentration is control different mixed liquid concentrations in 5000mg/L(PASAB pond, its effluent quality situation is as shown in table 2), hydraulic retention 60min, enter precipitation 1 afterwards and realize mud-water separation, water outlet enters HLA+ first Aerobic Pond, multiple refluxing opening is set in the gallery of the first Aerobic Pond, on " S " type of employing gallery, to reflux in 2/3 gallery position of the first Aerobic Pond and end and its reflux ratio 60% and 40%(table 3 show at gallery 2/3 simultaneously, the water quality situation of the whole bio-chemical effluent of the different reflux ratio of end), mud-water separation is carried out again through the second settling tank, after enter the further denitrification and decarburization of A/O system, the qualified discharge of the water outlet total nitrogen of safeguards system.Draw in this process of the test, biochemical stage water outlet COD is down to below 120mg/L, ammonia nitrogen < 0.5mg/L, total nitrogen < 20mg/L, volatile phenol < 0.2mg/L, petroleum-type < 1mg/L, colourity is down to less than 140 times; And only end backflow, water outlet total nitrogen near 40-60mg/L in, add advanced treatment load, also may cause final outflow water total nitrogen (in GB16171-2012, table 2 directly discharges) not up to standard.In whole biochemical treatment process, the second clarifier sludge is back to HLA pond, and the 3rd clarifier sludge is back to anoxic pond; Simultaneously also according to water quality and system disposition spoil disposal, excess sludge enters PASAB reactor or sludge thickener.
3) advanced treatment:
Bio-chemical effluent is introduced into RBAF, filter material layer in adjustment filter tank is arranged and water inlet aeration mode, realize the internal recycle of water inlet in filter tank, thus improve decomposition and the separating effect of BAF, organism for bio-chemical effluent is effectively removed, afterwards through photocatalytic ozonation, macromolecular substance is degraded to material that intermediate state or small molecules can be biochemical, be conducive to the process of follow-up BAF, the colourity of water outlet is down to less than 15 times, after BAF process, water outlet is through more medium filter, the process of UF/RO film, final outflow water index is made to meet table 3 directly emission standard in " coking chemistry emission of industrial pollutants standard " GB16171-2012, simultaneously index of correlation to be better than in GB50335-2002 reuse water as the water quality standard of recirculated cooling water supplementary feed.Result is as shown in table 4 below:
As can be seen from above-described embodiment, the present invention can reduce every pollutent index effectively, completes goal of the invention.Especially the simultaneous test of table 3, demonstrates core of the present invention difference technical characteristic well and has significant progress.
Claims (5)
1. the method for a biochemical treatment trade effluent, comprise multi-functional denitrification tank and Aerobic Pond, multi-functional denitrification tank and Aerobic Pond add HSBEMBM environmental improvement microbial preparation respectively, the water part of Aerobic Pond is back to multi-functional denitrification tank, it is characterized in that: Aerobic Pond has several refluxing openings in its flow direction, all be communicated with reflux line, wherein the refluxing opening of end keeps often opening; When ammonia nitrogen concentration ratio reaches 1:1.6 ~ 2.5 in the nitroso-group nitrogen concentration on all the other refluxing opening positions and multi-functional denitrification tank, open the reflux pump at this place, make water be back to multi-functional denitrification tank from here simultaneously.
2. according to the method for a kind of biochemical treatment trade effluent described in claim 1, it is characterized in that: described Aerobic Pond adopts the gallery of " S " type, and current are flowed in gallery; Gallery offers three refluxing openings, be located at 1/3 place of flow process, 2/3 place and destination county respectively.
3. according to the method for a kind of biochemical treatment trade effluent described in claim 2, it is characterized in that: current reflux at 2/3 place of gallery and destination county simultaneously, the quantity of reflux ratio of 2 is 6:4.
4. an Aerobic Pond, is characterized in that: the gallery forming " S " type in pond; Gallery offers several refluxing openings, each refluxing opening is all provided with reflux pump.
5. according to a kind of Aerobic Pond described in claim 4, it is characterized in that: gallery offers three refluxing openings, be located at 1/3 place of flow process, 2/3 place and destination county respectively.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396060A (en) * | 2016-11-23 | 2017-02-15 | 福州恒裕陶瓷有限公司 | Ceramic factory pollution discharge wastewater recycling device |
| CN108911133A (en) * | 2018-07-16 | 2018-11-30 | 陶昱明 | A kind of A of improvement2The pond /O and its application |
| CN115304161A (en) * | 2022-06-17 | 2022-11-08 | 天津正达科技有限责任公司 | A/O biological denitrification process method for sectional effluent |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445298A (en) * | 2008-12-23 | 2009-06-03 | 北京桑德环境工程有限公司 | Improved UCT sewage disposal system and method for treating same |
| CN201952322U (en) * | 2010-10-26 | 2011-08-31 | 北京市环境保护科学研究院 | Anaerobic micropore aeration oxidation ditch reactor |
| CN202279730U (en) * | 2011-11-03 | 2012-06-20 | 安徽国祯环保节能科技股份有限公司 | Synchronous nitrification and denitrification control device of surface aeration oxidation ditch technology |
| CN202415261U (en) * | 2012-02-14 | 2012-09-05 | 山东省环境保护科学研究设计院 | Multi-point control and multi-operation mode biological nitrogen and phosphorus removal treatment system |
| JP2012210601A (en) * | 2011-03-31 | 2012-11-01 | Sumitomo Heavy Industries Environment Co Ltd | Oxidation ditch and method for repairing the oxidation ditch |
| CN203360117U (en) * | 2013-07-17 | 2013-12-25 | 郑州大学 | Multipoint inflowing circulation A/O sewage treatment system |
| CN103951059A (en) * | 2014-04-08 | 2014-07-30 | 河海大学 | Multi-cycle composite bioreactor and process thereof |
-
2015
- 2015-03-24 CN CN201510129401.1A patent/CN104724826B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101445298A (en) * | 2008-12-23 | 2009-06-03 | 北京桑德环境工程有限公司 | Improved UCT sewage disposal system and method for treating same |
| CN201952322U (en) * | 2010-10-26 | 2011-08-31 | 北京市环境保护科学研究院 | Anaerobic micropore aeration oxidation ditch reactor |
| JP2012210601A (en) * | 2011-03-31 | 2012-11-01 | Sumitomo Heavy Industries Environment Co Ltd | Oxidation ditch and method for repairing the oxidation ditch |
| CN202279730U (en) * | 2011-11-03 | 2012-06-20 | 安徽国祯环保节能科技股份有限公司 | Synchronous nitrification and denitrification control device of surface aeration oxidation ditch technology |
| CN202415261U (en) * | 2012-02-14 | 2012-09-05 | 山东省环境保护科学研究设计院 | Multi-point control and multi-operation mode biological nitrogen and phosphorus removal treatment system |
| CN203360117U (en) * | 2013-07-17 | 2013-12-25 | 郑州大学 | Multipoint inflowing circulation A/O sewage treatment system |
| CN103951059A (en) * | 2014-04-08 | 2014-07-30 | 河海大学 | Multi-cycle composite bioreactor and process thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396060A (en) * | 2016-11-23 | 2017-02-15 | 福州恒裕陶瓷有限公司 | Ceramic factory pollution discharge wastewater recycling device |
| CN108911133A (en) * | 2018-07-16 | 2018-11-30 | 陶昱明 | A kind of A of improvement2The pond /O and its application |
| CN115304161A (en) * | 2022-06-17 | 2022-11-08 | 天津正达科技有限责任公司 | A/O biological denitrification process method for sectional effluent |
| CN115304161B (en) * | 2022-06-17 | 2023-09-15 | 天津正达科技有限责任公司 | A/O biological denitrification process method for sectional water outlet |
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Denomination of invention: Biochemical treatment method of industrial wastewater and aerobic tank Effective date of registration: 20181212 Granted publication date: 20160608 Pledgee: China Everbright Bank Limited by Share Ltd Hangzhou branch Pledgor: Zhejiang Hanlan Environment Technology Co., Ltd. Registration number: 2018330000458 |
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