CN1101628A - Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature - Google Patents
Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature Download PDFInfo
- Publication number
- CN1101628A CN1101628A CN94113963A CN94113963A CN1101628A CN 1101628 A CN1101628 A CN 1101628A CN 94113963 A CN94113963 A CN 94113963A CN 94113963 A CN94113963 A CN 94113963A CN 1101628 A CN1101628 A CN 1101628A
- Authority
- CN
- China
- Prior art keywords
- waste water
- mud
- excess sludge
- under
- treatment
- 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.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- Y02W10/20—Sludge processing
Abstract
The invention is specially applicable to treatment of waste water of caprolactam from the synthetic fibre mill and also from food processing plant. The waste residue, first treated in acid hydrolysis trough, is led to the eobiont waste water treatment system for 3-phase biological treatment, thereafter, the clear water is drained and the waste mud is returned to the aeration pool and the residue mud, after being concentrated, is sent to the acid hydrolysis trough. In this way, no waste mud need be discharged. It raises the rate of purification and the rate of CODcr removal from 70% to 80-98.2%.
Description
The present invention is an a kind of novel process of administering the wastewater treatment plant excess sludge with normal temperature acidification hydrolization-three-phase biologic treatment process.Be specially adapted to handle the caprolactam waste water that produces in chemical fibre factory's polyamide fibre 6 production processes.
The excess sludge of waste water treatment plant can't dewater because of its thickness, can not adopt general method of chemical treatment.The mud stabilizing treatment of developed countries such as current Japanese America and Europe mostly adopts anaerobic digestion process, traditional anaerobic digestion process is the operational administrative complexity not only, and the solid matter residence time need 20 days, add aerogenesis fire-fighting requirement, general plant effluent treatment station is difficult to realize.And along with the raising to heavy metal content and hygienic requirements in the agricultural mud, the agricultural amount of its mud is subjected to certain limitation, adopts landfill as Japan, and is inaccurate agricultural; U.S. EPA regulation mud agricultural standards is 35～50 ℃ of temperature, and hydraulic detention time 15 days, VS are degraded and reached 38% at least, and the sludge treatment expense accounts for 100% of sewage disposal expense.So in recent years, the U.S. and Japan take much count of the research of anaerobic sludge digestion, attempt to find out a kind of organic removal rate height, the operating load height, and aspects such as good stability and the deactivation of pathogeny bacterium are better than traditional anaerobic digestion process.Studying more is diphasic anaerobic technique, thinks a kind of sludge stabilizing New Process for Treatment likely, but does not see industrial applications as yet.Domestic sludge stabilizing is handled and still is in the starting stage.The inventor handles at methanol rectified raffinate, antibiotic pharmaceutical wastewater is handled, and the fishery products wastewater treatment (CN92108434. *, 93112446.8) the double oxygen one aerobic treatment high density of employing, the organic waste water of difficult degradation.
The novel process that the object of the present invention is to provide a kind of organic sludge to handle.Adopt normal temperature acidification hydrolization groove series connection aeration tank, organic metabolism in mud metabolism and the waste water is combined in same system, same device, finish the purification of organic waste water, eliminated excess sludge simultaneously.
The inventive method provides the particularly bioremediation of excess sludge after polyamide fibre 6 biological wastewater treatment of a kind of organic sludge, its main technique route is, organic sludge concentration 17～28 grams per liters, VSS/SS93.5～99.9%, the pH value is 7～7.5 excess sludge, enter the oxygen acidification hydrolization groove of holding concurrently, low-speed agitator is set in the groove to be stirred, to improve hydrolysis rate, prevent mud knot cake, mud was in 25～30 ℃ of following hydraulic retentions 24～25 hours, and acidification hydrolization is 5.2 to the pH value under the effect of the oxygen animalcule of holding concurrently, enter original biological treatment waste water system then, in equalizing tank, mix, enter the aeration tank by the ratio of mixture 1～1.5: 250 of mud and waste water, under the revolution of aeration impeller with caprolactam waste water or food wastewater, air, mud, the waste water thorough mixing, under the aerobic microbiological effect, adsorb-absorb-metabolism-synthesize, discharge clear liquor, mud is back to the aeration tank, and excess sludge is got back to the oxygen acidification hydrolization groove of holding concurrently after concentrating.
Double oxygen acidification hydrolization groove in the inventive method is open in air, because sludge concentration height to 17～28 grams per liters, mud just under anoxia condition because acidification hydrolization is carried out in the effect of a series of heterotroph acid formerss, be converted into organic acid, alcohol, carbonic acid gas etc., molecular weight reduces.So can with waste water metabolism in same system, the oxygen acidification hydrolization groove of holding concurrently is connected in series in the protista treatment system of caprolactam or food wastewater.Metabolism simultaneously under the effect of mud and waste water aerobic microbiological in the aeration tank reaches the purpose of purification of waste water.
Advantage of the present invention is that sludge retention time only is 1.25 days, the purification rate 80～98.2% of CODcr, and need not to add any pharmaceutical chemicals, energy consumption is low, flow process is simple, except that the acidification hydrolization groove that to set up a volume be aerobic biochemical treatment device 1/100, if with original sewage disposal networking, convenient management.Fig. 1 is a process flow sheet of the present invention, accompanying drawing is used to describe main flow process proposed by the invention, the excess sludge 1 that produces in the Waste Water Treatment, enter the oxygen acidification hydrolization groove 2 of holding concurrently, at low speed impeller 2(1) carry out acidification hydrolization under stirring, the equalizing tank 4 that flows into then in the wastewater treatment mixes with waste water 3, mixing the back mixed solution promotes by lift pump 5, enter aeration tank 7, enter settling tank 8 then, outside clear liquor 12 outflow systems, precipitating sludge 9 enters sludge sump 10, most of mud 1(1) be promoted to the aeration tank by sludge reflux pump 11, excess sludge 1 is got back in the acidification reactor 2.
Enumerate below and implement object lesson of the present invention:
Example 1: the excess sludge of certain caprolactam Waste Water Treatment the results are shown in Table 1 through this flow processing.
Example 2: the excess sludge of certain dairy plant's Waste Water Treatment the results are shown in Table 2 through this flow processing.
Table 1
| Project | CODcr mg/1 | Mud: waste water | |
| Water inlet | Water outlet | ||
| This technology | 1600 | 64.45 | 6∶1000 |
| Clearance (%) | 95.97 | ||
Table 2
| Project | CODcr mg/1 | Mud: waste water | |
| Water inlet | Water outlet | ||
| This technology | 1495 | 40 | 4∶1000 |
| Clearance (%) | 97.32 | ||
Claims (2)
1, a kind of bioremediation of excess sludge, it is characterized in that organic sludge concentration 17～28 grams per liters, VSS/SS93.5～99.9%, the pH value is that 7～7.5 excess sludge enters the double oxygen acidification hydrolization groove under the stirring at low speed, mud was in 25～30 ℃ of following hydraulic retentions 24～25 hours, acidification hydrolization is 5.2 to the pH value under the effect of the oxygen animalcule of holding concurrently, enter original biological treatment waste water system then, in equalizing tank, mix with hexanolactam waste water, ratio of mixture 1～1.5 by mud and waste water: 250 enter the aeration tank, under the revolution of aeration impeller, air, mud, the waste water thorough mixing is under the aerobic microbiological effect, adsorb-absorb-metabolism-synthesize, discharge clear liquor, mud is back to the aeration tank, and excess sludge is got back to the oxygen acidification hydrolization groove of holding concurrently after concentrating.
2, the bioremediation of excess sludge according to claim 1, it is characterized in that waste water also can be food wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94113963A CN1101628A (en) | 1994-10-27 | 1994-10-27 | Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94113963A CN1101628A (en) | 1994-10-27 | 1994-10-27 | Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1101628A true CN1101628A (en) | 1995-04-19 |
Family
ID=5036920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94113963A Pending CN1101628A (en) | 1994-10-27 | 1994-10-27 | Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1101628A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418903C (en) * | 2004-08-07 | 2008-09-17 | 安徽建筑工业学院 | Tech. for treating urban sewage by complete mixed hydrolytic acidify |
| CN101693576B (en) * | 2009-10-22 | 2011-05-11 | 燕山大学 | Technology for rapidly treating domestic sewage discharged without residual mud by second-stage adsorption |
| WO2011066736A1 (en) * | 2009-12-01 | 2011-06-09 | Li Jinmin | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment |
| CN102108000A (en) * | 2011-01-12 | 2011-06-29 | 中国海洋石油总公司 | Biological treatment method of oilfield drilling waste |
| CN105000765A (en) * | 2015-08-05 | 2015-10-28 | 天紫环保产业开发有限责任公司 | Sludge acidification fermentation treatment system |
| CN109987794A (en) * | 2019-04-25 | 2019-07-09 | 云南今业生态建设集团有限公司 | A kind of chemical fibre factory's sewage disposal system |
-
1994
- 1994-10-27 CN CN94113963A patent/CN1101628A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100418903C (en) * | 2004-08-07 | 2008-09-17 | 安徽建筑工业学院 | Tech. for treating urban sewage by complete mixed hydrolytic acidify |
| CN101693576B (en) * | 2009-10-22 | 2011-05-11 | 燕山大学 | Technology for rapidly treating domestic sewage discharged without residual mud by second-stage adsorption |
| WO2011066736A1 (en) * | 2009-12-01 | 2011-06-09 | Li Jinmin | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment |
| CN102149645A (en) * | 2009-12-01 | 2011-08-10 | 李进民 | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment |
| CN102149645B (en) * | 2009-12-01 | 2011-11-16 | 李进民 | Sludge treatment method and apparatus thereof and application to wastewater bio-treatment |
| JP2013512096A (en) * | 2009-12-01 | 2013-04-11 | リ、ジンミン | Sludge treatment method using sludge biological treatment method, and sludge treatment apparatus and apparatus |
| US8932466B2 (en) | 2009-12-01 | 2015-01-13 | Jinmin Li | Method and apparatus for sluge treatment and use thereof in sewage biotreatment |
| EA024049B1 (en) * | 2009-12-01 | 2016-08-31 | Цзиньминь Ли | Sludge treatment method and apparatus and application of said method and apparatus for wastewater bio-treatment |
| CN102108000A (en) * | 2011-01-12 | 2011-06-29 | 中国海洋石油总公司 | Biological treatment method of oilfield drilling waste |
| CN102108000B (en) * | 2011-01-12 | 2012-11-14 | 中国海洋石油总公司 | Biological treatment method of oilfield drilling waste |
| CN105000765A (en) * | 2015-08-05 | 2015-10-28 | 天紫环保产业开发有限责任公司 | Sludge acidification fermentation treatment system |
| CN109987794A (en) * | 2019-04-25 | 2019-07-09 | 云南今业生态建设集团有限公司 | A kind of chemical fibre factory's sewage disposal system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Farizoglu et al. | Simultaneous removal of C, N, P from cheese whey by jet loop membrane bioreactor (JLMBR) | |
| CN111348748A (en) | Aerobic granular sludge sewage treatment process and equipment of two-stage sequencing batch reactor | |
| CN107473513B (en) | Bamboo product wastewater Fenton treatment device and method | |
| CN110668633A (en) | Kitchen waste sorting wastewater treatment system and process | |
| CN114291964B (en) | Sewage treatment system and method for denitrification and phosphorus recovery | |
| CN108529834A (en) | A kind of method and its device of Fenton-SMAD-BBR processing high concentrated organic wastewater | |
| CN103408201A (en) | Treatment method of industrial wastewater in silicon wafer mortar recovery | |
| CN106365373A (en) | Method and apparatus for treating municipal sludge anaerobic digestion solution | |
| CN1101628A (en) | Slurry acidifying and hydrolyzing three phase biological treatment method at normal at mospheric temperature | |
| CN100417604C (en) | Fully biological treatment of wastewater of nitrobenzol or aniline or their mixture | |
| CN216236438U (en) | Pretreatment system for garbage extrusion leachate | |
| US20230121223A1 (en) | A Novel Single Hybrid Airlift Bioreactor for Wastewater Treatment | |
| JP2013176746A (en) | Treatment method and treatment device for organic wastewater | |
| CN115340256A (en) | CDMO pharmacy effluent disposal system | |
| CN210825614U (en) | （AO）2- -precipitation integrated multistage circulation reactor | |
| CN114685014A (en) | Livestock and poultry breeding wastewater treatment circulating system | |
| Pitman et al. | Operating experience with biological nutrient removal at the Johannesburg Bushkoppie Works | |
| CN210635848U (en) | High-efficient denitrogenation system of hair products waste water | |
| CN207418382U (en) | Sewage-treatment plant | |
| CN101607774A (en) | A kind of sewage disposal device and method | |
| CN201990572U (en) | Trimethylolpropane and butanol industrial sewage mixing treatment and purification system | |
| KR100377947B1 (en) | Aqua-composting BNR Device and Method for Clearing Wastewater Employing the Same | |
| KR0129831B1 (en) | A process for sewage treatment wsing denitrification and dephosphorization | |
| CN110713318A (en) | Treatment system and treatment method for dehydration filtrate after anaerobic digestion of sludge | |
| CN219620994U (en) | System suitable for high-concentration organic sewage and wastewater treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |