CN1668536A - Comprehensive sewage treatment method - Google Patents
Comprehensive sewage treatment method Download PDFInfo
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- CN1668536A CN1668536A CN02829684.2A CN02829684A CN1668536A CN 1668536 A CN1668536 A CN 1668536A CN 02829684 A CN02829684 A CN 02829684A CN 1668536 A CN1668536 A CN 1668536A
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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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- 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)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A comprehensive sewage treatment method comprises primary treatment and secondary treatment. It is characterized in that the first-stage treatment adopts a solid-phase object high-efficiency load blocking device, and the second-stage treatment is that BMS flora sludge-free biological sewage treatment technology (BMS for short) and mechanical energy are used for generating hydroxyl radical OH－Combining physicochemical treatment technology (HYDROX for short) of chemical oxidation pollutants. The sewage treatment process comprises the following steps: the sewage firstly enters a solid-phase object blocking device, enters a BMS stage after impurities are intercepted, and finally is treated by HYDROX to discharge water. Solves the problems of foreign odor and sludge treatment in the traditional treatment method, and can be used for treating organic sewage.
Description
Technical field at a kind of sewage
The present invention relates to a kind of sewage water treatment method, the process for comprehensively treating sewage for handling city domestic sewage, industrial organic waste water that more particularly to a kind of utilization BMS floras are combined without sludge organism sewage disposal technology with HYDR0X device sewage physicochemical treatment technologies.Background technology
Municipal wastewater is frequently with secondary treatment system, mainly based on biological treatment.The active sludge processing system of conventional method（Conventional activated sludge method, AO methods, AB methods, oxidation ditch process etc.）, biomembrance process processing system, stabilization pond and land treatment system.Municipal wastewater recycling processing system is usually using physics, chemistry or bioanalysis denitrogenation after municipal wastewater secondary treatment system；Chemical method or bioanalysis dephosphorization；Ozone or charcoal absorption remove micro-content organism；Ozone oxidation or chloridising are except pathogen and virus etc..After advanced treating, water outlet is set to reach reuse standard.Using conventional secondary treatment system and municipal wastewater recycling processing system, the problem of being primarily present has：1. there is foreign odor, running environment poor hygienic in sewage and sludge handling process.2. operational administrative is complicated, easily occurs the anomaly such as sludge bulking or sludge blockage in operation.3. need to set residual active sludge processing system, system investments and operating cost are high.4. treatment effect is general, and floor space is big.For the high concentrated organic wastewater of high-concentration industrial organic waste water, particularly biodegradability difference, conventional treatment method has coagulation, A/O biochemical treatments, UF membrane, extraction, burning etc..Common problem is：Emission request is reached, cost of investment and operating cost are high, extremely uneconomical.Cost of investment and operating cost are in relatively inexpensive scope, and intractability is big, and treatment effeciency is low, it is difficult to reach discharge standard.The content of the invention
It is high it is an object of the invention to provide a kind of system automation degree, management is simple, floor space is small, excess sludge processing unit need not be set, investment and operating cost are relatively low, and treatment effeciency is high, are especially suitable for biodegradability poor, COD is high, the process for comprehensively treating sewage of the low organic industrial sewage of suspension.
The object of the present invention is achieved like this：A kind of process for comprehensively treating sewage, including coagulation and two stage treatment.Put it is characterized in that coagulation efficiently blocks to carry using solid formation, two stage treatment is without sludge organism processing Technology of Sewage by BMS floras（Abbreviation BMS) produce hydroxy radical OH- chemical oxidations pollutant 1 with mechanical energy
Confirm this
Materializing strategy technology（Abbreviation HYDROX) it is combined.Waste water processes are：Sewage, which initially enters solid formation and efficiently blocks to carry, to be put, and enters BMS processing stages after interception impurity, finally by HYDROX handle after water outlet.Brief description of the drawings
Fig. 1 is the schematic diagram of BMS systems of the present invention.
Fig. 2 is removal efficiency of the BMS systems of the present invention to various different COD sewage.Embodiment
Solid formation, which efficiently blocks to carry, is set to gravity continuous conveyor filter, sewage first passes around gravity continuous conveyor filter, suspension and floating object and partial suspended thing (SS) containing a large amount of larger particles are trapped in sewage, and trapped substance is transported outward after being collected through solid formation automatic collecting device.Flow by gravity enters the lattice point pond of BMS biological regulating reservoirs four after sewage dams through filtering, and four lattice are three-phase fluidization biological reaction pool.Many kind BMS bacterium, filler and suspension type biological grower and efficiently micro- aeration tube are filled in bio-oxidation pond.
Process step is：
A, fermentation vat：Sewage after damming through filtering enters fermentation vat, using many flora microorganisms of culture, reduces the BOD and COD in water;
B, decomposing pool：Fermentation vat water outlet enters decomposing pool, further eliminates fermented material using many flora microorganism decompositions of BMS and is typically harmful to mushroom；
C, digester：Decomposing pool water outlet enters digester, by adjusting a large amount of coccuses in the culture many flora microorganisms of BMS, and eat the various septages of digestion and bacillus；
D, discharge bay：Digester water outlet enters after discharge bay, enters after further aeration biochemical processing through flow by gravity and level alarm for water and automatic control system are set in intermediate pool, pond.Process step is：Water level is less than lowest water level, and HYDROX working barrels are self-closing, and higher than setting water level, pump is opened automatically；Intermediate pool water outlet, to entering after fluid pressurization, deceleration after discharge bay, enters intermediate pool after further aeration biochemical processing through HYDROX working barrels through flow by gravity.Level alarm for water and automatic control system are set in pond, process step is：Water level is less than lowest water level, and HYDROX working barrels are self-closing, and higher than setting water level, pump is opened automatically；Intermediate pool water outlet, to entering HYDROX reactors after fluid pressurization, deceleration, passes the fluid through overcompression and decompression process, causes cavitation erosion, the expansion of bubble through HYDROX working barrels.When expansive force is more than the surface tension of fluid, in moment explosion occurs for trickle bubble, water-splitting is produced hydroxy radical group OH-, the oxidable decomposing organic matter of strong oxidizer hydroxy radical,
Generation final product (：02With 1120, sterilizing；
When e, Dang Shui leave reactor, a part is discharged by outlet valve, and the suction inlet of most of liquid recycle and entrance pump is handled again.Due to the recycling of liquid, so that residence time of the fluid in reactor is added, to improve degradation rate of the HYDROX devices to harmful substance；
F, after HYDROX devices in water outlet rely on pressure itself, be used as the backwashing water of gravity continuous conveyor filter into city planting ductwork, or reuse.
BMS systems
All contain BMS systems in fermentation vat, decomposing pool, digester and/or discharge bay in BMS processing.BMS systems are Best-Microorganism- System, and it mainly includes（A) porous carrier and（B) symbiotic co-existence is constituted in many flora microorganisms on porous carrier.A kind of particularly preferred BMS systems also contain；With（C) microbubble supply arrangement（See Fig. 1).Porous carrier
Currently preferred porous carrier is timber carrier, wherein having eliminated the composition for easily causing corruption, but retains cellulose, lignin and pentosan composition.The voidage of the present invention is 75-85 %, when being placed in water, partly can be suspended in water, so as to increase gas, liquid, solid three-phase contact area.
In addition, the timber carrier of the present invention has size and deep mixed hole, so that a certain degree of anaerobic zone, aerobic area and aerobic zone are formed, so as to provide suitable growing environment for different types of microorganism.
As used herein, " biological growth device " refers to the porous carrier for being loaded with many flora microorganisms of BMS.Many flora microorganisms
Symbiotic co-existence is an aggregate being made up of a variety of floras in many flora microorganisms on porous carrier, wherein containing selected from following microorganism：Photosynthetic bacteria, lactic acid bacteria, saccharomycete, actinomyces etc..
Available for the present invention microorganism be not particularly limited, can be it is any have decompose, utilize the bacterium of the various pollutants such as dirty Organic substance in water, sulfide, nitrogen oxides, organophosphor.For above-mentioned main several quasi-microorganisms, photosynthetic bacteria is mainly used in decomposing low fatty acid, aromatic compound；The material such as lactic acid bacteria main decomposition protein and glucose, lactic acid, acetic acid, propionic acid；Saccharomycete mainly has fabulous effect to high concentrated organic wastewater；Gas chromatography of the actinomyces principal degradation including aromatic compound.
Representational microorganism example includes but is not limited to：For eliminating NH3Ammonifiers, nitrifier, denitrifying bacterium；Sulfide-oxidizing enzyme for eliminating sulfide（Such as Thiobacillus）, thread sulphur bacteria（Such as bayesian sulfur bacteria, hair sulphur bacterium）, photosynthetic sulfur bacteria（Such as green sulphur bacteria, red sulfur bacteria）；Ammonifiers for denitrogenation dephosphorizing（Such as bacillus）, nitrifier, denitrifying bacterium, phosphobacteria（Such as Serratieae）.These microorganisms can be the conventional microbe species in this area, can also be separated and obtained under the environment such as place where the garage is piled up and waste water treatment plant with conventional method.Microbubble supply arrangement
Microbubble supply arrangement is located at the lower section of timber carrier, and oxygen is provided for many flora microorganisms.
It (is preferably " I types " hole to have many tiny holes on the air supply pipe of microbubble supply arrangement）, and there is constant slope in the cross section in hole, so that microbubble is not only tiny intensive, and stops to cover automatically during supply and prevent obstruction.
The BMS system response device simulating natural environment ecosystems, are present by being permitted the longer food chain that multiple-microorganism is constituted.Place occupy the BMS floras of carrier usually in a dormant state.When contact waste water and biological assistant ' when, flora turns to active state by resting state quickly.Organic substance is adsorbed on thalline for 30 minutes in very short time ＜ about 10- in ＞ in waste water, and solable matter is directly penetrating intracellular.Into in the presence of intracellular nutriment in the cell enzyme, through a series of biochemical reactions, organic matter is set to be converted into the simple inorganic matter such as carbon dioxide and water.Energy is produced simultaneously.The intermediate product synthetic cell material produced in energy and oxidizing process that microorganism is released using breathing, makes thalline amount reproduction.Microorganism constantly carries out organic matter in biological oxidation, environment and constantly reduced, and is purified sewage.
BMS systems used in the present invention have following main feature；
(1) BMS system simulations natural ecological environment, its purification process and flow principle are different from traditional biological handling process, BMS systems not only can be with fast decoupled organic matter, the generation of the foreign odor such as suppression and removal of hydrogen sulfide, ammonia, and whole process can be made to be discharged without excess sludge.
(2) BMS biological treatment systems are different from traditional bioremediation, clogging of the system both without traditional biological embrane method；Also the sludge bulking phenomenon without traditional activated sludge process；Oxygen transfer efficiency, coefficient of oxygen utilization, treatment effeciency, biomass and activity, the index such as economy are substantially better than traditional bioremediation；System has the irreplaceable high-efficient denitrification and dephosphorization effect of traditional biological facture, except foreign odor effect.
(3) timber carrier of the invention, different from bio-carrier conventional at present, proportion is moderate in carrier, forms biological species, the rational ecosystem of distributed number.
(4) there is efficient micro- aerating system from resistance, can not only produce uniform fine gas bubbles, while will not block, substantial oxygen source is provided for microorganism species.System for handling WGR is about the 1/3-1/2 of traditional biological processing, and energy consumption is small, and coefficient of oxygen utilization is high.
(5) microbubble supply arrangement provides optimal conditions for the growth and breeding of microorganism.
(6) equipment treatment effeciency is high (COD removal efficiency is shown in Fig. 2), and floor space is small, and cost of investment is low, and integrated degree is high.Embodiment：
A kind of process for comprehensively treating sewage, including coagulation and two stage treatment.It is characterised by that coagulation efficiently blocks to carry using solid formation altogether to put, two stage treatment is without sludge organism sewage disposal technology by BMS floras（Abbreviation BMS) with mechanical energy produce hydroxy radical Ο Η chemical oxidation pollutants materializing strategy technology（Referred to as
HYDROX) it is combined.Waste water processes are：Sewage, which initially enters solid formation and efficiently blocks to carry, to be put, and enters the BMS stages after interception impurity, finally by HYDROX handle after water outlet.
Because sewage source is complicated, therefore solid formation need to be set efficiently blocks to carry and put, to ensure the normal operation of aftertreatment device, grid device is replaced using the high gravity continuous conveyor filter of high-efficient automatic degree.Sewage first passes around suspension and floating object and partial suspended thing containing a large amount of larger particles in gravity continuous conveyor filter, sewage and is trapped, and remove above-mentioned substance has important protective effect to water pump assembly and subsequent treatment structures.Trapped substance is transported outward after being collected through solid formation automatic collecting device, DZ-0.7-500 type gravity continuous conveyors filter uses the Germany technology applied to sewage disposal, and filter rejection is high, and the solid phase water content of matter of collection is low, dehydration device need not be set, and gleanings can be transported outward directly.
Sewage enters BMS biological regulating reservoirs by flow by gravity after band filter filtering.When water quality and quantity is changed greatly in sewage quantity one day, regulating reservoir need to be set, regulating reservoir is one of main source that foreign odor is produced.Efficient micropore aeration equipment is provided with BMS biological regulating reservoirs, many kind BMS bacterium and suspension type biological grower, constitute three-phase fluidization biological reaction pool, because the design of aeration tube position and aeration quantity makes to produce interior circulation system in pond in pond, certain proportion anaerobism and oxygen, aerobe area are formed.Sewage is in pond along system water (flow) direction repeatedly through A/A/O biological treatment process.Biological growth device adsorbs the insoluble organic matter of organic matter, particularly macromolecular, many kind fungal component rapid digestions, decomposing organic matter.Using BMS biological treatment systems as biological regulating reservoir,
Both water quality and quantity is can adjust, can be suppressed again by BMS floras and eliminate foreign odor, BMS bacterium have the effect of digestion denitrogenation dephosphorizing and oxidation Decomposition organic matter, shock absorbing load, it can be ensured that the normal running conditions of follow up device.BMS biological treatment regulating reservoir system suspension things clearance 80%, pass through bioflocculation, the insoluble organic matter of biological oxidation simultaneously, ensure coagulation removal efficiency 82%, COD clearances are in 30- 40% or so, this binomial index of BMS biological regulating reservoirs effluent quality, can effectively ensure HYDROX normal running conditions and treatment effeciency.
The water outlet of BMS biological regulating reservoirs enters through flow by gravity sets level alarm for water and automatic control system in intermediate pool, pond, water level is less than lowest water level, and HYDROX working barrels are self-closing, and higher than setting water level, pump is opened automatically.Intermediate pool water outlet, to entering HYDROX reactors after fluid pressurization, deceleration, passes the fluid through overcompression and decompression process, causes cavitation erosion, the expansion of bubble through HYDROX working barrels.When expansive force is more than the surface tension of fluid, in moment explosion occurs for trickle bubble, while causing local high temperature reachable（2000k) and high pressure（Up to 200 bars）, make water-splitting produce hydroxy radical group OH-.The oxidable decomposing organic matter of the hydroxy radical of strong oxidizer one, generates final product (02With 1120, sterilizing.When water leaves reactor, a part is discharged by outlet valve, and the suction inlet of most of liquid recycle and entrance pump is handled again.Due to the recycling of liquid, so that residence time of the fluid in reactor is added, to improve degradation rate of the HYDROX devices to harmful substance.Water outlet can rely on pressure itself after HYDROX devices, and batch (-type) gravity continuous conveyor filter backwashing water is used as into city planting ductwork or reuse.
Water outlet indices are less than emission request, and HYDROX system COD clearances 85% can utterly destroy pathogen.Water quality index through processing： COD<60mg/L, BOD5<15mg/L, NH3- H^8mg/L, TP 0.2mg/L, SS 20mg/L.The beneficial effects of the invention are as follows：Because coagulation is using the high solid formation device for trapping gravity continuous conveyor filter of advanced technology, automaticity, intercepting efficiency is high, and solid phase water content of matter is low, can save the dehydration device in conventional treatment systems.BMS biological regulating reservoirs both can balanced water quality and quantity, and part that can be removed COD and most suspended substances pass through BMS bacterium and digest denitrogenation dephosphorizing and oxidation Decomposition organic matter, shock absorbing load, it can be ensured that the normal running conditions of follow up device.BMS biological treatment regulating reservoir system suspension things clearance 80%, pass through bioflocculation, the insoluble organic matter of biological oxidation simultaneously, ensure coagulation removal efficiency 82%, COD clearances are in 30-40% or so, BMS biological regulating reservoirs are discharged without excess sludge, therefore whole set process need not set sludge treatment equipment, processing system investment and operating cost are low.HYDROX physical reaction devices, by production
The raw hydroxy radical oxidation Decomposition organic matter of strong oxidizer one and various reducing substanceses, sterilizing.HYDROX system COD clearances 85%, can utterly destroy pathogen.Processing procedure odorless, tasteless, environmental sanitation condition is good.
Claims (1)
- Claim1st, a kind of process for comprehensively treating sewage, including coagulation and two stage treatment, it is characterized in that coagulation efficiently blocks to carry using solid formation puts progress, two stage treatment is without sludge organism processing Technology of Sewage i.e. BMS technologies by BMS floras, the materializing strategy technology that hydroxy radical Ο Η chemical oxidation pollutants are produced with mechanical energy is that HYDROX technologies are combined, and waste water processes are：Sewage, which initially enters efficient solid formation and blocks to carry, to be put, and enters BMS processing stages after interception impurity, finally by HYDROX handle after water outlet.2nd, according to the method described in claim 1, it is characterized in that described efficient solid formation, which blocks to carry, is set to gravity continuous conveyor filter, sewage first passes around gravity continuous conveyor filter, suspension and floating object and partial suspended thing containing a large amount of larger particles are trapped in sewage, trapped substance is transported outward after being collected through solid formation automatic collecting device, and flow by gravity enters BMS biological oxidation regulating reservoirs after sewage dams through filtering.3rd, according to the method described in claim 1, it is characterized in that the sewage after damming through filtering sequentially enters four lattice point ponds of BMS biological oxidation regulating reservoirs, four lattice point ponds are all three-phase fluidization biological reaction pool, the many flora microorganisms of BMS, filler and suspension type biological grower and efficiently micro- aeration tube are filled in bio-oxidation pond, process step is：A, fermentation vat：Sewage after damming through filtering enters fermentation vat, using many flora microorganisms of culture, reduces the BOD and COD in water;B, decomposing pool：Fermentation vat water outlet enters decomposing pool, further eliminates fermented material using many flora microorganism decompositions of BMS and is typically harmful to mushroom；C, digester：Decomposing pool water outlet enters digester, by adjusting a large amount of coccuses in the culture many flora microorganisms of BMS, and eat the various septages of digestion and bacillus, and such as digestion is not thorough, can be recycled by system water (flow) direction in three above pond；D, discharge bay：Digester water outlet enters after discharge bay, enters intermediate pool through flow by gravity after further aeration biochemical processing.4th, according to the method described in claim 1, it is characterised in that BMS biological oxidation regulating reservoir water outlets enter through flow by gravity sets level alarm for water and automatic control system in intermediate pool, pond, process step is：A, water level are less than lowest water level, and HYDROX working barrels are self-closing, and higher than setting water level, pump is opened automatically；B, intermediate pool water outlet, to entering HYDROX reactors after fluid pressurization, deceleration, pass the fluid through overcompression and decompression process, cause cavitation erosion, the expansion of bubble through HYDROX working barrels, when expansive force is more than fluid Surface tension when, in moment explosion occurs for trickle bubble, water-splitting is produced hydroxy radical group OH-;When c, Dang Shui leave reactor, a part is discharged by outlet valve, and the suction inlet of most of liquid recycle and entrance pump is handled again；D, after HYDROX devices water outlet can rely on pressure itself, be used as the backwashing water of gravity continuous conveyor filter into city planting ductwork, or reuse.5th, method according to claim 3, it is characterised in that fermentation vat, decomposing pool, digester and/or discharge bay in described BMS processing contain BMS systems, and the system includes（A) porous carrier,（B) symbiotic co-existence is in many flora microorganisms on porous carrier.6th, method as claimed in claim 5, it is characterised in that described BMS systems also include（C) microbubble supply arrangement.7th, method as claimed in claim 5, it is characterised in that described porous carrier is timber carrier, and voidage is 75-85 %, and when being placed in water, partly can be suspended in water.8th, method as claimed in claim 5, it is characterised in that described symbiotic co-existence contains following microorganism in many flora microorganisms on porous carrier：Photosynthetic bacteria, lactic acid bacteria, saccharomycete, actinomyces.
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 true CN1668536A (en) | 2005-09-14 |
| CN1305787C CN1305787C (en) | 2007-03-21 |
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ID=32034724
Family Applications (1)
| 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 |
Country Status (3)
| 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 |
|---|---|---|---|---|
| CN104568852A (en) * | 2015-01-30 | 2015-04-29 | 重庆大学 | Fenton catalytic nano plasma COD (chemical oxygen demand) sensor and detection method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104961244B (en) * | 2015-07-02 | 2017-03-01 | 山东阜丰发酵有限公司 | A kind of processing method of L arginine fermented waste fluid |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3853764A (en) * | 1964-04-23 | 1974-12-10 | E Armstrong | Waste water treatment system |
| JPH04349997A (en) * | 1991-05-28 | 1992-12-04 | Ebara Infilco Co Ltd | Treatment of organic waste water |
| JPH05317891A (en) * | 1992-05-25 | 1993-12-03 | Kurita Water Ind Ltd | Filter device |
| US6361697B1 (en) * | 1995-01-10 | 2002-03-26 | William S. Coury | Decontamination reactor system and method of using same |
| JP2971775B2 (en) * | 1995-03-03 | 1999-11-08 | 輝清 北澤 | Waste treatment equipment |
| US6206098B1 (en) * | 1997-11-14 | 2001-03-27 | Kent Cooper | In situ water and soil remediation method and system |
| 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 |
| CN1300718A (en) * | 1999-12-23 | 2001-06-27 | 雷恒毅 | Process for clarifying waste water difficult to degradate |
-
2002
- 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
- 2002-09-27 AU AU2002338138A patent/AU2002338138A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568852A (en) * | 2015-01-30 | 2015-04-29 | 重庆大学 | Fenton catalytic nano plasma COD (chemical oxygen demand) sensor and detection method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004028982A1 (en) | 2004-04-08 |
| AU2002338138A1 (en) | 2004-04-19 |
| CN1305787C (en) | 2007-03-21 |
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