CN1305787C - A method for comprehensive treatment of wastewater - Google Patents
A method for comprehensive treatment of wastewater Download PDFInfo
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- CN1305787C CN1305787C CNB028296842A CN02829684A CN1305787C CN 1305787 C CN1305787 C CN 1305787C CN B028296842 A CNB028296842 A CN B028296842A CN 02829684 A CN02829684 A CN 02829684A CN 1305787 C CN1305787 C CN 1305787C
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to a method for comprehensive treatment of wastewater, which comprises first-stage treatment and second-stage treatment. The method is characterized in that the first-stage treatment adopts a high-efficiency solid object blocking device, and the second-stage treatment combines a BMS microbial-population non-sludge biologic waste water treatment technology (BMS for short) with a physicochemical treatment technique (HYDROX for short) for producing hydroxy radical OH<-> chemical oxidation pollutants by mechanical energy. The method comprises the wastewater processing processes that the wastewater enters the solid object blocking device firstly and enters the BMS stage after impurity substances are intercepted, and finally, water flows out after being processed by the HYDROX. The method solves the problems of foreign odor and sludge of the traditional processing methods, and can be used for processing organic wastewater.
Description
Technical field
The present invention relates to a kind of sewage water treatment method, the particularly a kind of BMS of utilization flora does not have the processing city domestic sewage that the sludge organism sewage disposal technology combines with HYDROX device sewage physicochemical treatment technology, the process for comprehensively treating sewage of industrial organic waste water.
Background technology
Municipal wastewater often adopts the second-stage treatment system, mainly based on biological treatment.Method commonly used has Wastewater Treated by Activated Sludge Process system (conventional activated sludge method, AO method, AB method, oxidation ditch process etc.), biomembrance process treatment system, stabilization pond and land treatment system.The municipal wastewater recycling processing system generally is to adopt physics, chemistry or biological process denitrogenation after municipal wastewater second-stage treatment system; Chemical method or biological process dephosphorization; Micro-content organism is removed in ozone or charcoal absorption; Ozone oxidation or chlorination process are removed pathogenic bacteria and virus etc.After advanced treatment, make water outlet reach reuse standard.Adopt conventional second-stage treatment system and municipal wastewater recycling processing system, the main problem that exists has: 1. have foreign odor in sewage and sludge handling process, the running environment poor hygienic.2. operational administrative complexity, in service being prone to such as unusual phenomenoies such as sludge bulking or sludge blockage.3. need establish the residual active sludge treatment system, system's investment and working cost height.4. treatment effect is general, and floor space is big.For high-concentration industrial organic waste water, the high concentrated organic wastewater of biodegradability difference particularly, conventional treatment method has coagulation, A/O biochemical treatment, membrane sepn, extraction, burning etc.Ubiquitous problem is: reach emission request, and cost of investment and working cost height, extremely uneconomical.Cost of investment and working cost are in comparatively economic scope, and intractability is big, and processing efficiency is low, is difficult to reach emission standard.
Summary of the invention
The object of the present invention is to provide a kind of system automation degree height, management is simple, floor space is little, need not to be provided with the excess sludge treatment unit, investment and running cost are lower, the processing efficiency height, and it is poor especially to be fit to biodegradability, the COD height, the process for comprehensively treating sewage of the organic industrial sewage that suspended substance is low.
The object of the present invention is achieved like this: a kind of process for comprehensively treating sewage comprises one-level processing and second-stage treatment.It is characterized in that it is the BMS flora not to be had the sludge organism technology (being called for short BMS) of disposing of sewage produce hydroxy radical qiao OH with mechanical energy that one-level handle to adopt solid formation efficiently to block to carry a device, second-stage treatment
-The materialization treatment technology of chemical oxidation pollutent (being called for short HYDROX) combines.The sewage disposal flow process is: sewage at first enters solid formation and efficiently blocks a year device, the treatment stage of entering BMS behind the intercepting impurity, handles the back water outlet by HYDROX at last.
Description of drawings
Fig. 1 is the synoptic diagram of BMS of the present invention system.
Fig. 2 is the removal efficient of BMS of the present invention system to various different COD sewage.
Embodiment
Solid formation efficiently blocks and carries device is gravity continuous conveyor filter, sewage at first passes through gravity continuous conveyor filter, contain the suspended substance of a large amount of larger particles and floating matter and part suspended substance (SS) in the sewage and be trapped, trapped substance is collected the back through the solid formation automatic collecting device and is transported outward.Flow by gravity entered BMS biological regulating reservoir four lattice branch ponds after sewage dammed after filtration, and four lattice are the three-phase fluidization biological reaction tank.All adorn multiple genus BMS bacterium, filler and suspension type biological grower and efficient little aeration tube in the bio-oxidation pond.
Treatment step is:
A, fermentation vat: the sewage after damming after filtration enters fermentation vat, utilizes many floras microorganism of cultivating, reduces BOD and COD in the water;
B, decomposing pool: the fermentation vat water outlet enters decomposing pool, further utilizes many floras of BMS microbiological degradation to eliminate fermented material and general harmful mushroom;
C, digester: the decomposing pool water outlet enters digester, and by regulating a large amount of coccuses of cultivating in many floras of BMS microorganism, various corruption things of digestion and bacillus eat;
D, outlet sump: after the digester water outlet entered outlet sump, further aeration biochemical was handled after flow by gravity enters intermediate pool, establishes water-level alarm device and automatic control system in the pond.Treatment step is: water level is lower than lowest water level, and the HYDROX working barrel is self-closing, is higher than designated water level, opens pump automatically; The intermediate pool water outlet enters the HYDROX reactor after the pressurization of HYDROX working barrel convection cell, deceleration, make fluid through overdraft and decompression process, causes the expansion of cavitation erosion, bubble.When bulging force during greater than the fluidic surface tension, explosion takes place in moment in trickle bubble, makes water-splitting produce the OH of hydroxy radical qiao group
-, the oxidable decomposing organic matter of strong oxidizer hydroxy radical qiao generates final product CO
2And H
2O, sterilization and disinfection;
E, when Dang Shui leaves reactor, a part is discharged by outlet valve, most of liquid recirculation also enters pump intake and handles once more.Since the recirculation of liquid, thus the residence time of fluid increased at reactor, to improve the degradation rate of HYDROX device to objectionable impurities;
F, behind the HYDROX device, rely on self pressure in the water outlet, enter city planting ductwork, or reuse is as the backwashing water of gravity continuous conveyor filter.
The BMS system
All contain the BMS system in fermentation vat, decomposing pool, digester and/or the outlet sump in BMS handles.The BMS system is Best-Microorganism-System, it mainly comprise (a) porous support and (b) symbiotic co-existence many floras microorganism on porous support constitute.A kind of particularly preferred BMS system also contains; (c) microbubble supply arrangement (see figure 1).
Porous support
The preferred porous support of the present invention is a timber carrier, has wherein removed and has easily caused putrid composition, but kept Mierocrystalline cellulose, xylogen and piperylene composition.Voidage of the present invention is 75-85%, in the time of in being placed on water, can partly be suspended in the water, thereby increase gas, liquid, solid three-phase contact area.
In addition, timber carrier of the present invention has size and deep mixed hole, thus to a certain degree anaerobic zone, aerobic area and aerobic zone of formation, thus provide suitable growing environment for dissimilar microorganisms.
As used herein, " biological growth device " refers to be loaded with the porous support of many floras of BMS microorganism.
Many floras microorganism
Symbiotic co-existence many floras microorganism on porous support is an aggregate that is made of multiple flora, wherein contains to be selected from following microorganism: photosynthetic bacterium, milk-acid bacteria, yeast, actinomycetes etc.
Can be used for microorganism of the present invention and be not particularly limited, can be any bacterium that has decomposition, utilizes all contaminations such as organism in the sewage, sulfide, oxynitride, organophosphorus.With regard to above-mentioned main several quasi-microorganisms, photosynthetic bacterium is mainly used in decomposes low fatty acid, aromatics; Materials such as main decomposing protein of milk-acid bacteria and glucose, lactic acid, acetic acid, propionic acid; Yeast mainly has fabulous effect to high concentrated organic wastewater; Actinomycetes are mainly degraded and comprise the multiple organism of aromatics.
Representational microorganism example includes, but are not limited to: be used to eliminate NH
3Ammonifying bacteria, nitrifier, denitrifying bacteria; Be used to eliminate the sulfuration bacterium (as thiobacillus) of sulfide, thread sulphur bacteria (as Bei Shi thiobacterium, a sulphur bacterium), photosynthetic sulfur bacteria (as green sulphur bacteria, red thiobacterium); The ammonifying bacteria (as genus bacillus), nitrifier, denitrifying bacteria, the phosphorus bacteria (as Serratia) that are used for denitrogenation dephosphorizing.These microorganisms can be the microbe species commonly used in this area, also can separate obtaining with ordinary method down from environment such as place where the garage is piled up and waste water treatment plants.
The microbubble supply arrangement
The microbubble supply arrangement is positioned at the below of timber carrier, for many floras microorganism provides oxygen.
Many tiny holes (being preferably " I type " hole) are arranged on the air-supply duct of microbubble supply arrangement, and there is constant slope in the transverse section in hole, thereby microbubble is not only tiny intensive, and can covers automatically when stopping air feed and prevent to block.
There is the longer food chain that is made of many kinds of microorganisms in the BMS system response device simulating natural environment ecosystem.The BMS flora that the place occupy carrier is in dormant state at ordinary times.When contact waste water and biological assistant, flora is very fast to turn to active state by dormant state.In the waste water organic substance the very short time＜about 10-30 minute in be adsorbed on the thalline, soluble substance directly penetrates in the cell.Enter intracellular nutritive substance under the effect of desmo enzyme,, make organism be converted into simple inorganics such as carbonic acid gas and water through a series of biochemical reactions.The while generate energy.The intermediate product synthetic cell material that produces in energy that microorganism utilization breathing is emitted and the oxidising process is bred thalline in a large number.Microorganism constantly carries out bio-oxidation, and organism constantly reduces in the environment, and sewage is purified.
The used BMS system of the present invention has following principal feature;
(1) BMS systems simulation natural ecological environment, its scavenging process and flow process principle are different from the traditional biological treatment process, the BMS system is decomposing organic matter fast not only, the generation of foreign odors such as inhibition and removal of hydrogen sulfide, ammonia, and can make whole process not have excess sludge to discharge.
(2) the BMS biological treatment system is different from traditional bioremediation, and system had not both had the latch up phenomenon of traditional biological embrane method; The sludge bulking phenomenon of also not having traditional activated sludge process; Oxygen transfer efficiency, coefficient of oxygen utilization, processing efficiency, biomass and activity, indexs such as economy obviously are better than traditional bioremediation; System has the irreplaceable high-efficient denitrification and dephosphorization effect of traditional biological facture, removes the foreign odor effect.
(3) timber carrier of the present invention is different from bio-carrier commonly used at present, and proportion is moderate in the carrier, forms biological species, the rational ecosystem of distributed number.
(4) the efficient little aerating system that hinders from anti-is arranged, not only can produce uniform trickle bubble, can not stop up simultaneously, for microorganism species provides the oxygen source that enriches.The system for handling water-gas ratio is about the 1/3-1/2 that traditional biological is handled, and energy consumption is little, the coefficient of oxygen utilization height.
(5) the microbubble supply arrangement provides optimal conditions for microbial growth and breeding.
(6) device processes efficient height (COD removes efficient and sees Fig. 2), floor space is little, and cost of investment is low, the integrated degree height.
Embodiment:
A kind of process for comprehensively treating sewage comprises one-level processing and second-stage treatment.Be characterised in that altogether one-level processing employing solid formation efficiently blocks a year device, second-stage treatment is that the BMS flora is not had sludge organism sewage disposal technology (being called for short BMS) and mechanical energy generation hydroxy radical qiao OH
-The materialization treatment technology of chemical oxidation pollutent (being called for short HYDROX) combines.The sewage disposal flow process is: sewage at first enters solid formation and efficiently blocks a year device, enters the BMS stage behind the intercepting impurity, handles the back water outlet by HYDROX at last.
Because the sewage source complexity is efficiently blocked a year device so need establish solid formation,, adopt the high gravity continuous conveyor filter of high-efficient automatic degree to replace grid device to guarantee the normal operation of aftertreatment device.Sewage at first passes through gravity continuous conveyor filter, contains the suspended substance of a large amount of larger particles and floating matter and part suspended substance in the sewage and is trapped, and removes above-mentioned substance water pump assembly and subsequent disposal structures are had important provide protection.Trapped substance is outward transport after the solid formation automatic collecting device is collected, DZ-0.7-500 type gravity continuous conveyor filter adopts the Germany technology that is applied to sewage disposal, filter rejection height, and the solid formation water ratio of collection is low, dewatering unit need not be set, and gleanings can directly be transported outward.
Sewage filters the back flow by gravity by the band filter and enters the BMS biological regulating reservoir.When water quality and quantity in the sewage quantity one day changes greatly, equalizing tank need be set, equalizing tank is one of main source of foreign odor generation.Be provided with efficient micro-pore aeration equipment in the BMS biological regulating reservoir, multiple genus BMS bacterium and suspension type biological grower, constitute the three-phase fluidization biological reaction tank, the design of in the pond because aeration tube position and aeration rate makes and produces the internal recycle system in the pond, forms certain proportion anaerobism, double oxygen, aerobe district.Sewage in the pond along the system water flow path direction repeatedly through the A/A/O biological treatment process.The biological growth device is adsorbing organism, the insoluble organism of macromole particularly, and multiple genus fungal component digests fast, decomposing organic matter.Adopt the BMS biological treatment system as biological regulating reservoir, the both adjustable water saving matter water yield can suppress and the elimination foreign odor by the BMS flora again, and the BMS bacterium has digestion denitrogenation dephosphorizing and the organic effect of oxygenolysis, shock absorbing is loaded, and can guarantee the normal running conditions of follow up device.BMS biological treatment equalizing tank system suspension thing clearance 〉=80%, simultaneously by biofloculation, the insoluble organism of bio-oxidation, guarantee one-level processing suspended substance removal rate 〉=82%, the COD clearance is about 30-40%, this binomial index of BMS biological regulating reservoir effluent quality can effectively be guaranteed normal running conditions and the processing efficiency of HYDROX.
The water outlet of BMS biological regulating reservoir enters intermediate pool through flow by gravity, establishes water-level alarm device and automatic control system in the pond, and water level is lower than lowest water level, and the HYDROX working barrel is self-closing, is higher than designated water level, opens pump automatically.The intermediate pool water outlet enters the HYDROX reactor after the pressurization of HYDROX working barrel convection cell, deceleration, make fluid through overdraft and decompression process, causes the expansion of cavitation erosion, bubble.When bulging force during greater than the fluidic surface tension, explosion takes place in moment in trickle bubble, causes partial high temperature can reach (2000k) and high pressure (can reach 200 crust) simultaneously, makes water-splitting produce the OH of hydroxy radical qiao group
-The oxidable decomposing organic matter of strong oxidizer-hydroxy radical qiao generates final product CO
2And H
2O, sterilization and disinfection.When water left reactor, a part was discharged by outlet valve, and most of liquid recirculation also enters pump intake and handles once more.Since the recirculation of liquid, thus the residence time of fluid increased at reactor, to improve the degradation rate of HYDROX device to objectionable impurities.Water outlet can rely on self pressure behind the HYDROX device, enters city planting ductwork or reuse as intermittent type gravity continuous conveyor filter backwashing water.
The every index of water outlet is lower than emission request, and the COD of HYDROX system clearance 〉=85% can be utterly destroyed pathogenic agent.Treated water-quality guideline: COD＜60mg/L, BOD
5＜15mg/L, NH
3-H≤8mg/L, TP≤0.2mg/L, SS≤20mg/L.
The invention has the beneficial effects as follows: because coagulation adopts advanced technology, solid formation that automaticity is high Device for trapping gravity continuous conveyor filter, the intercepting efficiency height, the solid formation moisture content is low, can save conventional process Dewater unit in the system. The BMS biological regulating reservoir both can balanced water quality and quantity, again part that can be removed COD and Most suspended substances, by BMS bacterium digestion denitrogenation dephosphorizing and oxidation Decomposition organic matter, the shock absorbing load, Can guarantee the normal running conditions of follow up device. BMS biological treatment regulating reservoir system suspension thing clearance 〉=80%, By bioflocculation, the insoluble organic matter of biological oxidation, guarantee coagulation removal efficiency 〉=82% simultaneously, The COD clearance is about 30-40%, and the BMS biological regulating reservoir does not have excess sludge discharges, so a whole set of technology need not Sludge treatment equipment is set, and treatment system investment and operating cost are low. HYDROX physical reaction device relies on and produces Give birth to strong oxidizer-hydroxy radical oxidation Decomposition organic matter and various reducing substances, sterilizing. HYDROX System COD clearance 〉=85% can be utterly destroyed pathogen. The processing procedure odorless, tasteless, the environmental sanitation condition Good.
Claims (8)
1, a kind of process for comprehensively treating sewage, comprise one-level processing and second-stage treatment, it is characterized in that one-level handle to adopt solid formation efficiently to block to carry a device carries out, and second-stage treatment is that the BMS flora is not had the sludge organism technology of disposing of sewage is the BMS technology, produces hydroxy radical qiao OH with mechanical energy
-The materialization treatment technology of chemical oxidation pollutent is that the HYDROX technology combines, and the sewage disposal flow process is: sewage at first enters efficient solid formation and blocks a year device, the treatment stage of entering BMS behind the intercepting impurity, handles the back water outlet by HYDROX at last;
Sewage after wherein damming after filtration enters four lattice branch ponds of BMS bio-oxidation equalizing tank successively, four lattice branch ponds are all the three-phase fluidization biological reaction tank, comprise fermentation vat, decomposing pool, digester and outlet sump, and fermentation vat, decomposing pool, digester and/or outlet sump during described BMS handles contain the BMS system, this system comprises (a) porous support and (b) the many flora microorganism of symbiotic co-existence on porous support, and treatment step is:
A, fermentation vat: the sewage after damming after filtration enters fermentation vat, utilizes many floras microorganism of cultivating, reduces BOD and COD in the water;
B, decomposing pool: the fermentation vat water outlet enters decomposing pool, further utilizes many floras of BMS microbiological degradation to eliminate fermented material and harmful mushroom;
C, digester: the decomposing pool water outlet enters digester, and by regulating the coccus of cultivating in many floras of BMS microorganism, various corruption things of digestion and bacillus eat;
D, outlet sump: after the digester water outlet entered outlet sump, further aeration biochemical was handled after flow by gravity enters intermediate pool;
Wherein said symbiotic co-existence many floras microorganism on porous support contains following microorganism: photosynthetic bacterium, milk-acid bacteria, yeast, actinomycetes.
2, method according to claim 1, it is characterized in that, described efficient solid formation blocks and carries device is gravity continuous conveyor filter, sewage at first passes through gravity continuous conveyor filter, containing particulate suspended substance and floating matter and suspended substance in the sewage is trapped, trapped substance is outward transport after the solid formation automatic collecting device is collected, and flow by gravity entered BMS bio-oxidation equalizing tank after sewage dammed after filtration.
3, method according to claim 1 is characterized in that, in BMS handles, also comprises in step c by the system water flow path direction and carry out recirculation in these three ponds of fermentation vat, decomposing pool and digester.
4, method according to claim 1 is characterized in that the water outlet of BMS bio-oxidation equalizing tank enters intermediate pool through flow by gravity, establishes water-level alarm device and automatic control system in the pond, and treatment step is:
A, water level are lower than lowest water level, and the HYDROX working barrel is self-closing, is higher than designated water level, open pump automatically;
B, intermediate pool water outlet enter the HYDROX reactor after the pressurization of HYDROX working barrel convection cell, deceleration, make fluid through overdraft and decompression process, cause the expansion of cavitation erosion, bubble, when bulging force during greater than the fluidic surface tension, explosion takes place in moment in trickle bubble, makes water-splitting produce the OH of hydroxy radical qiao group
-
C, when Dang Shui leaves reactor, a part is discharged by outlet valve, most of liquid recirculation also enters pump intake and handles once more;
D, water outlet can rely on self pressure behind the HYDROX device, enters city planting ductwork, or reuse is as the backwashing water of gravity continuous conveyor filter.
5, method according to claim 1 is characterized in that, fermentation vat, decomposing pool, digester and outlet sump during described BMS handles all contain the BMS system.
6, method as claimed in claim 5 is characterized in that, described BMS system also comprises (c) microbubble supply arrangement.
7, method as claimed in claim 5 is characterized in that, described porous support is a timber carrier, and voidage is 75-85%, and when being placed in the water, can partly be suspended in the water.
8, the method for claim 1 is characterized in that, described BMS system also comprises (c) microbubble supply arrangement.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2002/000691 WO2004028982A1 (en) | 2002-09-27 | 2002-09-27 | A method for treating wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1668536A CN1668536A (en) | 2005-09-14 |
| CN1305787C true CN1305787C (en) | 2007-03-21 |
Family
ID=32034724
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028296842A Expired - Fee Related CN1305787C (en) | 2002-09-27 | 2002-09-27 | A method for comprehensive treatment of wastewater |
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| Country | Link |
|---|---|
| CN (1) | CN1305787C (en) |
| AU (1) | AU2002338138A1 (en) |
| WO (1) | WO2004028982A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961244A (en) * | 2015-07-02 | 2015-10-07 | 山东阜丰发酵有限公司 | Treatment method for L-arginine fermentation waste liquid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568852B (en) * | 2015-01-30 | 2017-10-27 | 重庆大学 | A kind of Fenton catalytic nanometers plasma COD sensors and its detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04349997A (en) * | 1991-05-28 | 1992-12-04 | Ebara Infilco Co Ltd | Treatment of organic waste water |
| US6206098B1 (en) * | 1997-11-14 | 2001-03-27 | Kent Cooper | In situ water and soil remediation method and system |
| CN1300718A (en) * | 1999-12-23 | 2001-06-27 | 雷恒毅 | Process for clarifying waste water difficult to degradate |
| US6361697B1 (en) * | 1995-01-10 | 2002-03-26 | William S. Coury | Decontamination reactor system and method of using same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3853764A (en) * | 1964-04-23 | 1974-12-10 | E Armstrong | Waste water treatment system |
| JPH05317891A (en) * | 1992-05-25 | 1993-12-03 | Kurita Water Ind Ltd | Filter device |
| JP2971775B2 (en) * | 1995-03-03 | 1999-11-08 | 輝清 北澤 | Waste treatment equipment |
| CN1069091C (en) * | 1998-01-21 | 2001-08-01 | 岳舜琳 | Process for deeper purifying drinking water |
| JP2001079594A (en) * | 1999-09-17 | 2001-03-27 | Teshika:Kk | Regenerating and recycling device for waste water, solid- liquid separating device and sterilization and filtering device |
| JP3390386B2 (en) * | 1999-11-15 | 2003-03-24 | 善行 澤田 | Sewage treatment equipment used in merger treatment purification equipment and merger treatment purification tank |
-
2002
- 2002-09-27 AU AU2002338138A patent/AU2002338138A1/en not_active Abandoned
- 2002-09-27 WO PCT/CN2002/000691 patent/WO2004028982A1/en active Application Filing
- 2002-09-27 CN CNB028296842A patent/CN1305787C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04349997A (en) * | 1991-05-28 | 1992-12-04 | Ebara Infilco Co Ltd | Treatment of organic waste water |
| US6361697B1 (en) * | 1995-01-10 | 2002-03-26 | William S. Coury | Decontamination reactor system and method of using same |
| US6206098B1 (en) * | 1997-11-14 | 2001-03-27 | Kent Cooper | In situ water and soil remediation method and system |
| CN1300718A (en) * | 1999-12-23 | 2001-06-27 | 雷恒毅 | Process for clarifying waste water difficult to degradate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961244A (en) * | 2015-07-02 | 2015-10-07 | 山东阜丰发酵有限公司 | Treatment method for L-arginine fermentation waste liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1668536A (en) | 2005-09-14 |
| WO2004028982A1 (en) | 2004-04-08 |
| AU2002338138A1 (en) | 2004-04-19 |
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