CN103771639B - A kind of oily wastewater treatment method and equipment - Google Patents
A kind of oily wastewater treatment method and equipment Download PDFInfo
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- CN103771639B CN103771639B CN201410013930.0A CN201410013930A CN103771639B CN 103771639 B CN103771639 B CN 103771639B CN 201410013930 A CN201410013930 A CN 201410013930A CN 103771639 B CN103771639 B CN 103771639B
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Abstract
The invention provides a kind for the treatment of facility of oily(waste)water, comprise reaction unit, intake pump, aerating apparatus, main anode, main cathode, porous granule electrode and power supply; Be provided with dividing plate in described reaction unit, reaction unit is divided into lower chamber and upper cavity by described dividing plate, is porous supporting plate in the middle part of dividing plate; Be connected with intake pump bottom described lower chamber, top is provided with an oil discharge outlet, lower chamber center is provided with the filter core vertically running through lower chamber; Described aerating apparatus comprises the air pump and aeration board that connect successively, and described aeration board is placed in bottom filter core; Described main anode, main cathode and porous granule electrode are all arranged in upper cavity, and described main anode, main cathode are connected with power supply; Described upper cavity top is provided with venting port, top is provided with No. two oil discharge outlets, bottoms and is provided with water port; A described oil discharge outlet is connected respectively at refiltered oil storing device with No. two oil discharge outlets.This simple and compact equipment structure, floor space are little, operational management is convenient, and treatment effect is good, processing efficiency is high.
Description
Technical field
The invention belongs to field of water treatment equipment, particularly a kind of oiliness sewage treatment equipment, also relates to the method utilizing this equipment to carry out water treatment.
Background technology
Along with the growth of economy and the fast development of industry, oily(waste)water pollutes the focus having become environmental problem, causes the great attention of various circles of society.Oily(waste)water source is a lot, is profit dispersion system, is broadly divided into oil slick, dispersed oil, oil in water emulsion, dissolving oil four kinds.Its harm is mainly manifested in the ecosystem, plant, soil, the having a strong impact on of water body.Oily(waste)water enters natural water, forms significant threat to water ecological environment.Oily(waste)water can immerse between soil pores and form oil film, produces ponding, causes air, moisture and fertilizer all can not infiltrate in soil, destroys soil layer construction, is unfavorable for the growth of farm crop, even makes farm crop withered.Along with the enhancing of people's environmental consciousness, all kinds of antipollution act, specification are constantly revised, and substantially increase the requirement of process to oily(waste)water and discharge, design and the treatment effect for the treatment of system all face new challenges.
At present for oil-contaminated water processing method, the five large classes such as Physical, physico-chemical processes, chemical oxidization method, electrochemical process and biochemical process can be divided into according to principle difference.Traditional oily water separation technique relies on action of gravity and physical filtering, only there is good treatment effect to oil slick and dispersed oil, and poor to the removal effect of the less oil in water emulsion of elaioleucite and dissolving oil, adopt separately this technology, process effluent quality is difficult to reach emission standard.Although adopt the film processing systems such as ultrafiltration membrance filter, reverse osmosis and MBR effectively can realize the removal of useless oil-in-water, TOC and salinity, but the emulsification degree of oily(waste)water increases, easily cause serious fouling membrane, reduce membrane flux, need the regeneration constantly carrying out film, and COD and BOD removal effect is not up to standard, thus limit its industrial applications.Biochemical process is made good use of oxygen animalcule and is carried out oxygenolysis to the organism in water; Because aerobic microbiological is to the restriction of the capacity of decomposition of oil and oxygen in water concentration, general only for the oily water treatment of low concentration.How to take effective technique, oily(waste)water is processed, realize sewage qualified discharge, significant to preserving the ecological environment.Therefore, seek to set up one can carry out at normal temperatures and pressures, and there is the treatment process of high efficiency and broad spectrum, design the reaction unit Simplified flowsheet of integration and reduced volume is that effectively solve an oiliness sewage treatment difficult problem and promote this technology can the key of practical application.
Summary of the invention
Goal of the invention: the object of this invention is to provide a kind of efficiency is high, volume is little, cost is low oiliness sewage treatment equipment and utilized this equipment to carry out the method for oiliness sewage treatment.
Technical scheme: the treatment facility that the invention provides a kind of oily(waste)water, comprises reaction unit, intake pump, aerating apparatus, main anode, main cathode, porous granule electrode and power supply; Be provided with dividing plate in described reaction unit, reaction unit is divided into lower chamber and upper cavity by described dividing plate, is porous supporting plate in the middle part of dividing plate; Be connected with intake pump bottom described lower chamber, top is provided with an oil discharge outlet, lower chamber center is provided with the filter core vertically running through lower chamber; Described aerating apparatus comprises the air pump and aeration board that connect successively, and described aeration board is placed in bottom filter core; Described main anode, main cathode and porous granule electrode are all arranged in upper cavity, and described main anode, main cathode are connected with power supply; Described upper cavity top is provided with venting port, top is provided with No. two oil discharge outlets, bottoms and is provided with water port; A described oil discharge outlet is connected respectively at refiltered oil storing device with No. two oil discharge outlets.
As improvement, described reaction unit is round tube type, rectangular parallelepiped or square; Described main anode, main cathode be arranged in parallel paired electrode, and main anode main anode, main cathode can Graphite Electrodes, stainless steel electrode or Ti electrode.
Improve as another kind, described porous granule electrode is sorbing material electrode, preferential oxidation aluminium, zeolite or gac, and its particle diameter is 0.5-5.0mm, porous granule electrode surface can doping metals or metal oxide to improve performance.
Improve as another kind, described filter core is porous filter core; It can carry out polymeric filter separation to oil content, and oil content floats up to lower chamber top after assembling the larger oil droplet of formation is discharged by an oil discharge outlet.
Improve as another kind, described porous supporting plate is stainless (steel) wire or the titanium wire network of aperture 0.1-2.0mm; It has the effect of support porous granule electrode, has the effect of water distribution and secondary gas distribution concurrently, make heterogeneous system evenly.
Improve as another kind, also comprise grug feeding jar, described grug feeding jar is located between intake pump and reaction unit; Thus emulsion splitter can be added to the oily(waste)water entering reaction unit, the oil in water emulsion in oily water is decomposed into You Heshui, so that next step process.
Improve as another kind, also comprise water intaking valve, vent valve, a draining valve, No. two draining valves, water discharge valves; Described water intaking valve is located between intake pump and reaction unit; A described draining valve is located between an oil discharge outlet and refiltered oil storing device; Described No. two draining valves are located between No. two oil discharge outlets and refiltered oil storing device; Described water discharge valve is connected with water port; Described vent valve is located between air pump and aeration board; Described water intaking valve, vent valve, draining valve, No. two draining valves, water discharge valves are magnetic valve.
Improve as another kind, also comprise an oil monitor instrument, No. two oil monitor instrument, No. three oil monitor instrument, fie screen and Automatic Control Unit; The top of lower chamber is located at by a described oil monitor instrument, and the top of upper cavity is located at by described No. two oil monitor instrument, and described No. three oil monitor instrument are connected with water outlet; Described Automatic Control Unit is connected with power supply, oil monitor instrument, No. two oil monitor instrument, No. three oil monitor instrument respectively, and described fie screen is located in water port, to prevent porous granule electrode with fluid loss.Described Automatic Control Unit can the function such as parameters, signals collecting, analysis, analog calculation, auto-control, false alarm, data logging as required, and the realization of these functions is the conventional technology in this area.When an oil monitor instrument or No. two oil monitor instrument determination datas reach setup parameter, start a draining valve or No. two outer oil extraction parts of draining valve; And can automatically regulate electrochemical power source electric current, ozone dosage, flooding quantity according to No. three oil monitor instrument determination datas, if still fail to reach emission standard after operating parameters adjustment, now can cut off all the other device power supply (DPS)s, close water discharge valve and report to the police.
Improve as another kind, the gas that aerating apparatus passes into is air or ozonated air; When passing into ozonated air, this equipment also comprises ozone tail gas destructor and the gas flow dryer connected successively, ozonizer, ozone concn monitor, gas meter, vacuum breaker; Described vacuum breaker is connected with aeration board, and described ozone tail gas destructor is connected with venting port.
Present invention also offers a kind of method utilizing the treatment facility of above-mentioned oily(waste)water to carry out water treatment, comprise the following steps: after profit initial gross separation being carried out to oil-containing water body by porous medium filter core, to pass in reaction unit containing waste water, utilize aeration air supporting, electrochemistry air supporting and absorbing synergic effect, the greasy dirt that secondary air-floatation is separated, three grades of absorption-electrochemical degradations remove pulmonary edema is completed in same reaction unit inter-sync, under physical sepn, chemical degradation combined action, advanced treatment is carried out to water body, must purify waste water.
Preferably, also emulsion splitter breakdown of emulsion can be added in reaction unit.
Beneficial effect: the treatment facility of oily(waste)water provided by the invention is simple and compact for structure, floor space is little, easy to use, with low cost, operational management convenient, utilize oil, water-mass density characteristic, be separated by one-level coalescence filtration, secondary air-floatation, three grades of absorption-electrochemical degradation removal effects effectively process oil content in water and other pollutents, realize the effect purified water preferably, treatment effect is good, processing efficiency is high.
Specifically, the present invention compared with prior art, has following beneficial effect:
One, oil, water-mass density difference is utilized, by a level physical coalescence filtration, secondary air-floatation separation, three grades of absorption-electrochemical degradation removal effects, treatment effect can be significantly improved, realize single technique or the unapproachable degradation effect of general technology, also processing cost can be reduced, thorough to purification of waste water, avoid producing secondary pollution, environmental protection is reliable, has wide market outlook.
Two, special reaction unit structure design is utilized, can synchronously realize dissolved air flotation at same reaction interval, absorption-electrochemical degradation is removed, make structure of reactor compact, shorten waste water hydraulic detention time when processing, while improving treatment effect, significantly reduce reactor volume.
Three, the micro-bubble that electrochemical reaction process produces can improve daf efficiency, and air supporting power makes electrochemistry flow field be circulated, and complementation is urged mutually.
Four, utilize porous granule electrode to increase the electrode useful area of electrochemical reaction, in system, improve treatment effect by adsorption-desorption degraded.Utilize the internal recycle flow field that reactor special construction and air supporting process produce, porous granule electrode at reaction unit internal recycle, can obtain abundant fluidisation and utilization simultaneously.
Five, utilize oil monitor instrument, magnetic valve and Automatic Control Unit, full-automatic, the intelligentized control method for the treatment of processes can be realized.
Oily wastewater treatment method technique provided by the invention is simple, processing efficiency is high, can effectively, economy, environmental protection, integration carry out water treatment by filtration, air supporting, absorption/electrochemical degradation.Be somebody's turn to do " integration " namely realizes each technique effect in same reaction unit inter-sync, significantly improve treatment effect and reduce energy consumption, optimize structure of reactor, reduce floor space.
Accompanying drawing explanation
Fig. 1 is the structural representation of the treatment facility of the oily(waste)water of embodiment 1.
Fig. 2 is the schematic top plan view of equipment shown in Fig. 1.
Fig. 3 is the structural representation of the treatment facility of the oily(waste)water of embodiment 2.
Fig. 4 is the schematic top plan view of equipment shown in Fig. 2.
Fig. 5 is the structural representation of the treatment facility of the oily(waste)water of embodiment 3.
Fig. 6 is the structural representation of the treatment facility of the oily(waste)water of embodiment 4.
Fig. 7 is the structural representation of the treatment facility of the oily(waste)water of embodiment 5.
Embodiment
According to following embodiment, the present invention may be better understood.But those skilled in the art will readily understand, concrete material proportion, processing condition and result thereof described by embodiment only for illustration of the present invention, and should can not limit the present invention described in detail in claims yet.
Embodiment 1
The treatment facility of oily(waste)water, is shown in Fig. 1 and 2, comprises reaction unit 1, intake pump 2, aerating apparatus 3, main anode 4, main cathode 5, porous granule electrode 6 and power supply 7; Be provided with dividing plate 11 in described reaction unit 1, reaction unit 1 is divided into lower chamber 12 and upper cavity 13 by described dividing plate 11, is porous supporting plate 18 in the middle part of dividing plate 11; Be connected with intake pump 2 bottom described lower chamber 12, top is provided with an oil discharge outlet 15, lower chamber 12 center is provided with the filter core 14 vertically running through lower chamber 12; Described aerating apparatus 3 comprises the air pump 31 and aeration board 32 that connect successively, and described aeration board 32 is placed in bottom filter core 14; Described main anode 4, main cathode 5 and porous granule electrode 6 are all arranged in upper cavity 13, and described main anode 4, main cathode 5 are connected with power supply 7; Described upper cavity 13 top is provided with venting port 10, top is provided with No. two oil discharge outlets 16, bottom is provided with water port 19; A described oil discharge outlet 15 is connected respectively at refiltered oil storing device 17 with No. two oil discharge outlets 16.
Also comprise water intaking valve 21, vent valve 33, draining valve 22, No. two draining valves 23, water discharge valves 24; Described water intaking valve 21 is located between intake pump 2 and reaction unit 1; A described draining valve 22 is located between an oil discharge outlet 15 and refiltered oil storing device 17; Described No. two draining valves 23 are located between No. two oil discharge outlets 16 and refiltered oil storing device 17; Described water discharge valve 24 is connected with water port 19; Described vent valve 33 is located between air pump 31 and aeration board 32; Described water intaking valve 21, vent valve 33, draining valve 22, No. two draining valves 23, water discharge valves 24 are magnetic valve.
In the present invention, filter core 6 is porous medium filter core; It can carry out polymeric filter separation to oil content, and oil content floats up to lower chamber top after assembling the larger oil droplet of formation is discharged by an oil discharge outlet.Described porous supporting plate 18 is stainless (steel) wire or the titanium wire network of aperture 0.1-2.0mm; It has the effect of support porous granule electrode, has the effect of water distribution and secondary gas distribution concurrently, be heterogeneous system evenly; Described porous granule electrode 11 is sorbing material electrode, preferential oxidation aluminium, zeolite or gac, and its particle diameter is 0.5-5.0mm, porous granule electrode surface can doping metals or metal oxide to improve performance.
After staying water pumps into the lower chamber 12 of reaction unit 1 by intake pump 2, filtered by filter core 14, the upper oil slick comparatively easily removed in waste water is separated floating with dispersed oil, enter refiltered oil storing device 17 by an oil discharge outlet 15, the water body after filtration enters the upper cavity 13 of reaction unit 1 under hydrodynamicpressure and ascending gas bubbles drive; Because reaction unit 1 upper cavity 13 is upper end flaring structure design, namely upper cavity 13 upper dimension is greater than lower dimension, its density of fluid carry-over bubble of central zone is less than the fluid of periphery, can utilize in bubble build-up lag entrained fluids and the electric field region of porous granule electrode 6 between main anode 4 and main cathode 5 on flowing, now under porous granule electrode 6 absorption and electrochemical degradation effect, the dissolving oil in water body and part oil in water emulsion obtain degraded and remove; After fluid enters into flaring district, upper end, residual gas and oil content are discharged respectively by vent valve 10 and No. two draining valves 16; In the flaring district, upper cavity upper end of reaction unit 1, due to reduction, the reduction of bubbles entrain power of rate of flow of fluid, under periphery and central zone fluid density difference and action of gravity, porous granule electrode and water body reflux downwards along reaction unit 1 inner side-wall, be circulated to water port 19 place part to arrange outward, remainder continues to participate in internal circulation flow.
Embodiment 2
The treatment facility of oily(waste)water, is shown in Fig. 3 and Fig. 4, substantially the same manner as Example 1, difference is that reaction unit 1 is for rectangular configuration, aeration board 32 and porous supporting plate 18, main anode 4, main cathode 5 are rectangle, main anode 4 placement parallel with main cathode 5, structure paired electrode.
Embodiment 3
The treatment facility of oily(waste)water, is shown in Fig. 5, substantially the same manner as Example 1, and difference is only: also comprise an oil monitor instrument 25, No. two oil monitor instrument 26, No. three oil monitor instrument 27, fie screen 28 and Automatic Control Unit 8; The top of lower chamber 12 is located at by a described oil monitor instrument 25, and the top of upper cavity 13 is located at by described No. two oil monitor instrument 26, and described No. three oil monitor instrument 27 are connected with water outlet 19; Described Automatic Control Unit 8 is connected with power supply 7, oil monitor instrument 25, No. two oil monitor instrument 26, No. three oil monitor instrument 27 respectively, and described fie screen 28 is located in water port 19, to prevent porous granule electrode with fluid loss.
Described Automatic Control Unit 8 can the function such as parameters, signals collecting, analysis, analog calculation, auto-control, false alarm, data logging as required, and the realization of these functions is the conventional technology in this area.When an oil monitor instrument 25 or No. two oil monitor instrument 26 determination datas reach setup parameter, start a draining valve 22 or No. two outer oil extraction parts of draining valve 23; And can automatically regulate electrochemical power source electric current, ozone dosage, flooding quantity according to No. three oil monitor instrument 27 determination datas, if still fail to reach emission standard after operating parameters adjustment, now can cut off all the other device power supply (DPS)s, close water discharge valve 24 and report to the police.
Embodiment 4
The treatment facility of oily(waste)water, is shown in Fig. 6, substantially the same manner as Example 3, and difference is also to comprise grug feeding jar, and described grug feeding jar is located between intake pump 2 and reaction unit 1; Thus emulsion splitter can be added to the oily(waste)water entering reaction unit, the oil in water emulsion in oily water is decomposed into You Heshui, so that next step process.
Embodiment 5
The treatment facility of oily(waste)water, see Fig. 7, substantially the same manner as Example 4, difference is also to comprise ozone tail gas destructor 39 and the gas flow dryer 34 connected successively, ozonizer 35, ozone concn monitor 36, gas meter 37, vacuum breaker 38; Described vacuum breaker 38 is connected with aeration board 32, and described ozone tail gas destructor 39 is connected with venting port 10.
In electrochemical reaction district, form coupling synergy between ozone oxidation and electrochemical oxidation, the degradation efficiency to oil content in waste water and other pollutents can be improved.
Embodiment 6
The treatment facility of the oily(waste)water described in embodiment 1 to 5 is utilized to carry out water treatment, comprise the following steps: after profit initial gross separation being carried out to oil-containing water body by porous medium filter core, to pass in reaction unit containing waste water, utilize aeration air supporting, electrochemistry air supporting, absorption-electrochemical degradation synergy, the greasy dirt in secondary air-floatation separation, three grades of absorption-electrochemical degradation removal waste water is completed in same reaction unit inter-sync, under physical sepn, chemical degradation combined action, advanced treatment is carried out to water body, must purify waste water.
Wherein, the treatment facility of the oily(waste)water of embodiment 4 and 5 carries out water treatment and also adds emulsion splitter breakdown of emulsion.
Oil-containing waste water for ship is processed, water inlet oil concentration 5.8g/L.Treatment process and effect are in table 1.
The treatment facility of table 1 oily(waste)water carries out treatment process and effect
Claims (10)
1. a treatment facility for oily(waste)water, is characterized in that: comprise reaction unit (1), intake pump (2), aerating apparatus (3), main anode (4), main cathode (5), porous granule electrode (6) and power supply (7); Dividing plate (11) is provided with in described reaction unit (1), reaction unit (1) is divided into lower chamber (12) and upper cavity (13) by described dividing plate (11), and dividing plate (11) middle part is porous supporting plate (18); Described lower chamber (12) bottom is connected with intake pump (2), top is provided with an oil discharge outlet (15), and lower chamber (12) center is provided with the filter core (14) vertically running through lower chamber (12); Described aerating apparatus (3) comprises the air pump (31) and aeration board (32) that connect successively, and described aeration board (32) is placed in filter core (14) bottom; Described main anode (4), main cathode (5) and porous granule electrode (6) are all arranged in upper cavity (13), and described main anode (4), main cathode (5) are connected with power supply (7); Described upper cavity (13) top is provided with venting port (10), top is provided with No. two oil discharge outlets (16), bottom is provided with water port (19); A described oil discharge outlet (15) is connected respectively at refiltered oil storing device (17) with No. two oil discharge outlets (16).
2. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: described reaction unit (1) is round tube type, rectangular parallelepiped or square; Described main anode (4), main cathode (5) be arranged in parallel paired electrode, and main anode (4), main cathode (5) are Graphite Electrodes, stainless steel electrode or Ti electrode.
3. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: described porous granule electrode (6) is sorbing material electrode.
4. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: described filter core (14) is porous filter core.
5. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: the stainless (steel) wire that described porous supporting plate (18) is aperture 0.1-2.0mm or titanium wire network.
6. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: also comprise grug feeding jar, and described grug feeding jar is located between intake pump (2) and reaction unit (1).
7. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: also comprise water intaking valve (21), vent valve (33), draining valve (22), No. two draining valves (23), water discharge valve (24); Described water intaking valve (21) is located between intake pump (2) and reaction unit (1); A described draining valve (22) is located between an oil discharge outlet (15) and refiltered oil storing device (17); Described No. two draining valves (23) are located between No. two oil discharge outlets (16) and refiltered oil storing device (17); Described water discharge valve (24) is connected with water port (19); Described vent valve (33) is located between air pump (31) and aeration board (32); Described water intaking valve (21), vent valve (33), draining valve (22), No. two draining valves (23), water discharge valves (24) are magnetic valve.
8. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: also comprise an oil monitor instrument (25), No. two oil monitor instrument (26), No. three oil monitor instrument (27), fie screen (28) and Automatic Control Unit (8); A described oil monitor instrument (25) is located at the top of lower chamber (12), described No. two oil monitor instrument (26) are located at the top of upper cavity (13), and described No. three oil monitor instrument (27) are connected with water outlet (19); Described Automatic Control Unit (8) is connected with power supply (7), oil monitor instrument (25), No. two oil monitor instrument (26), No. three oil monitor instrument (27) respectively, and described fie screen (28) is located in water port (19).
9. the treatment facility of a kind of oily(waste)water according to claim 1, is characterized in that: the gas that aerating apparatus (3) passes into is air or ozonated air; When passing into ozonated air, this equipment also comprises ozone tail gas destructor (39) and the gas flow dryer (34) connected successively, ozonizer (35), ozone concn monitor (36), gas meter (37), vacuum breaker (38); Described vacuum breaker (38) is connected with aeration board (32), and described ozone tail gas destructor (39) is connected with venting port (10).
10. the method utilizing the treatment facility of a kind of oily(waste)water described in any one of claim 1 to 9 to carry out water treatment, comprise the following steps: after profit initial gross separation being carried out to oil-containing water body by porous medium filter core, oily(waste)water is passed in reaction unit, utilize aeration air supporting, electrochemistry air supporting, absorption-electrochemical degradation acts synergistically, complete secondary air-floatation in same reaction unit inter-sync to be separated, greasy dirt in three grades of absorption-electrochemical degradation removal waste water, in physical sepn, under chemical degradation combined action, advanced treatment is carried out to water body, must purify waste water.
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| CN201410013930.0A CN103771639B (en) | 2014-01-13 | 2014-01-13 | A kind of oily wastewater treatment method and equipment |
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| CN201410013930.0A CN103771639B (en) | 2014-01-13 | 2014-01-13 | A kind of oily wastewater treatment method and equipment |
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| CN103771639B true CN103771639B (en) | 2015-07-29 |
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| CN105540761B (en) * | 2016-01-12 | 2018-05-11 | 河海大学 | A kind of water body disinfection equipment and the method using its progress water body disinfection |
| CN110342695A (en) * | 2018-04-08 | 2019-10-18 | 华东理工大学 | A kind of processing method of used cutting liquid |
| CN111196652A (en) * | 2019-09-19 | 2020-05-26 | 河南中原石油助剂有限公司 | Oil control and mud reduction treatment method and system for oilfield produced water |
| CN112979011A (en) * | 2021-02-11 | 2021-06-18 | 深圳市盘古环保科技有限公司 | Oily wastewater treatment process |
| CN112979012A (en) * | 2021-02-11 | 2021-06-18 | 深圳市盘古环保科技有限公司 | Oily wastewater treatment device integrating coagulation, electric floatation and electrooxidation |
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| GB9921237D0 (en) * | 1999-03-24 | 1999-11-10 | Ion Enterprises Ltd | Fluid treatment |
| CN1490261A (en) * | 2002-10-15 | 2004-04-21 | 上海同济建设科技有限公司 | Waste water treating systems |
| CN102557240A (en) * | 2012-01-18 | 2012-07-11 | 湘潭大学 | Electromagnetic aerobic membrane bio-reactor for treating wastewater |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9921237D0 (en) * | 1999-03-24 | 1999-11-10 | Ion Enterprises Ltd | Fluid treatment |
| CN1490261A (en) * | 2002-10-15 | 2004-04-21 | 上海同济建设科技有限公司 | Waste water treating systems |
| CN102557240A (en) * | 2012-01-18 | 2012-07-11 | 湘潭大学 | Electromagnetic aerobic membrane bio-reactor for treating wastewater |
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