CN107746164A - Reduce the electrochemistry AAO devices and its processing method of Sludge in Sewage Treatment amount - Google Patents
Reduce the electrochemistry AAO devices and its processing method of Sludge in Sewage Treatment amount Download PDFInfo
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- CN107746164A CN107746164A CN201711181439.9A CN201711181439A CN107746164A CN 107746164 A CN107746164 A CN 107746164A CN 201711181439 A CN201711181439 A CN 201711181439A CN 107746164 A CN107746164 A CN 107746164A
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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Abstract
The invention belongs to environmental protection technical field, and in particular to a kind of electrochemistry AAO devices and its processing method for reducing Sludge in Sewage Treatment amount.The device includes storage cistern, sludge import, main body A AO devices, magnetic stirring apparatus, electric device, mudpan, sludge supernatant outlet composition, Aerobic Pond is provided with porous electrode plate parallel to water (flow) direction both sides and forms electrochemical cell, can be moved along battery lead plate groove.Sewage is introduced into anaerobic pond by storage cistern, enters back into anoxic pond, carries out polyP bacteria release phosphorus and denitrification process.Sludge by electrokinetic process promotes sludge recessive growth or reaches lysis effect, makes mud decrement.Aerobic Pond sewage enters sedimentation basin by pipeline, carry out sludge settling, again by sludge reflux into anaerobic pond, returned sludge biodegradability improves after electrochemical treatments, supplement the carbon source that anaerobic pond biochemical reaction needs, biochemical efficiency is improved, sewage treating efficiency is further improved, and supernatant is discharged by outlet.
Description
Technical field
The invention belongs to environmental protection technical field, and in particular to and a kind of electrochemistry of reduction Sludge in Sewage Treatment amount-
AAO devices and its processing method.
Background technology
By 2016, China produced 3000~40,000,000 tons of municipal sludges every year (moisture content is 80%).Expect
The year two thousand twenty, China's municipal sludge yield are up to 6000~90,000,000 tons.Dewatered sludge without stabilization procedures has to environment
There is larger toxic action, threaten human body health and ecological environment.
At present, the disposal options of China's sludge have landfill, compost, natural drying and incineration.But containing a large amount of difficult in sludge
With the moisture of removing, difficulty is caused for specific resistance to filtration.A large amount of sludge do not only take up and pollute large area soil, Er Qieyun
Defeated difficulty, conveying cost are high.Therefore the dehydration of sludge and decrement turn into focus and the difficult point that the field is studied now.
In Chinese patent application prospectus CN103553217A《A kind of electrokinetic technique promotes at the sewage of mud decrement
Reason method》In disclose a kind of sewage water treatment method with function of sludge reduction, sanitary sewage initially enters materialization section, place
Biochemistry pool is discharged into after reason and carries out biochemical treatment, the waste water after biochemical treatment enters second pond, qualified discharge after precipitation, is sunk from two
A part is extracted in the sludge in pond and is back to biochemistry pool, another part is delivered in electrokinetic process reactor, after electrochemistry lysis,
Biochemistry pool is partly refluxed to, is partly expelled to sludge dewatering center, is spaced after some cycles and all discharges the sludge of second pond
Sludge dewatering center, supernatant is back to biochemistry pool front end after dehydration, and dewatered sludge then transports outward landfill or liquid processed.This application electricity
Chemical unit is added in second pond rear end, sets independent electrochemistry decrement treatment unit, and space is big, and second pond mud extraction is transported
After being sent to electrochemical cell, cracked to ensure that sludge is perfectly homogenous, electrochemical cell will also be independently arranged and stir and evenly mix equipment, be
System processing energy consumption increase, handling process are cumbersome.And a second pond mud extraction part is directly back to biochemistry pool front end in this application, separately
It is partly into chemistry and cracks unit, wherein direct refluxing portion biochemical is poor compared with non-breaking sludge.System sewage treating efficiency
Difference.Fixed electrode is laid, and voltage sets a timing, and two interpolar voltage gradients are constant, and as the reaction time extends, anode/the moon
Easily occur peracid around pole and cross alkali environment, influence to crack the biochemical of rear returned sludge, can substantially reduce at whole system sewage
Manage efficiency.
The content of the invention
In order to solve the above technical problems, the present invention is for existing sludge in-situ reduced training difference and sewage treatment process mud extraction
Follow-up dehydration difficulty is big to wait technical barrier, there is provided a kind of electrochemistry-AAO devices for reducing Sludge in Sewage Treatment amount and its processing
Method.By applying electric field in oxidation pond, promote sludge aerobic digestion efficiency, improve sludge lysis broken wall efficiency.On the one hand, lead to
Electrical field stimulation electrochemical oxidation process is crossed, microbial metabolism efficiency is improved, larger molecular organicses in sludge is degraded to small molecule
Organic matter, realize that sludge in-situ is reduced；On the other hand make the difficult removing water release such as sludge intracellular combination water and attached water, improve
Sludge is subsequently dehydrated reduced training.
Concrete technical scheme is as follows：
Electrochemistry-AAO the devices of Sludge in Sewage Treatment amount are reduced, the device includes storage cistern, sludge import, main body
AAO devices, magnetic stirring apparatus, electric device, mudpan, sludge supernatant outlet composition, the main body A AO device bags
Anaerobic pond, anoxic pond and Aerobic Pond are included, the Aerobic Pond is provided with porous electrode plate parallel to water (flow) direction both sides and forms electrochemistry
Unit, movable electrode plate include positive plate, minus plate and power supply, and the positive plate material is titanium-based ruthenium iridium coating layer electrode, cloudy
Plate material is pure Ti electrode, lays multiple holes in anode plate and cathode plate, battery lead plate is fixed by battery lead plate groove, can
Moved along battery lead plate groove, two battery lead plate spacing can adjust；The power supply is two-way voltage-stabilizing dc source.
The storage cistern is the lucite body of uncovered.
The AAO body tops are connected to oral siphon, anaerobic pond top seal, and top is equipped with magnetic stirring apparatus, agitating paddle
Close to bottom surface, agitating paddle can be pivoted, and its outer wrap has inert material；Pass through rectangular weir between anaerobic pond and anoxic pond
Holding is communicated, and top is not closed, and bottom surface is equipped with magnetic agitation oar；It is connected between anoxic pond and Aerobic Pond by crest of weir；It is aerobic
There are 4~8 aeration heads in bottom of pond face, is aerated by air blower；Aerobic Pond passes through pipeline water outlet.
The mudpan upper end is cuboid, and lower end is truncated rectangular pyramids, and the two forms one.
The inert material can be one kind in polytetrafluoroethylene (PTFE), polyvinyl chloride or polyethylene.
The processing method of the electrochemistry-AAO devices of Sludge in Sewage Treatment amount is reduced, is specifically comprised the following steps：
(1) sewage enters AAO devices by sludge pump by storage cistern, initially enters anaerobic pond, anaerobic pond sewage is by stirring
Oar stirring is mixed, keeps sludge homogeneous；
(2) sewage enters anoxic pond by crest of weir, and sewage is stirred by agitating paddle, keeps sludge homogeneous；
(3) sewage enters Aerobic Pond, and the on the one hand aerobic sigestion for sludge provides oxygen, on the other hand sludge is carried out
It is electronic, form sludge electrochemistry and crack decrement unit, realize that sludge disintegration is reduced by two interpolar electro ultrafiltrations；
(4) the Aerobic Pond sewage through electrochemical pre-treatment enters mudpan by pipeline, carries out sludge settling；
(5) clarifier sludge is back in anaerobic pond by sludge reflux pump, and returned sludge can give birth to after electrochemical treatments
The property changed improves, and the carbon source that supplement anaerobic pond biochemical reaction needs, improves biochemical efficiency, sewage treating efficiency further improves；
(6) sludge supernatant is discharged by sludge supernatant outlet.
This method have the advantage that：
1st, cancel in the present invention and be independently arranged electrochemical cell, two electrode plates are directly embedded into Aerobic Pond, on the one hand
Reduce and be independently arranged electrochemical cell space-consuming, increase handling process construction investment operating cost, on the other hand aerobic list
Member is directly added into movable electrode plate and forms electrochemical cell, and positive plate material is titanium-based ruthenium iridium coating layer electrode, negative electrode plate material
For pure Ti electrode, multiple holes are laid in anode plate and cathode plate, is advantageous to gas caused by two-plate and escapes in time, ensure electricity
Pole plate fully contacts with sludge, improves electric current conduction efficiency, and battery lead plate can move along battery lead plate groove, pass through traveling electrode
Form control pole plate spacing, adjust voltage gradient, control electrochemical reaction process,
Electrochemical processing cell and aerobic unit are coupled, realize that electric field promotes aerobic sigestion and reaches sludge lysis in real time
To the effect of mud decrement, the space for individually setting up electrochemical processing cell occupancy is saved, the same of aerobic reaction can also be realized
When whole sludge electrochemical oxidation crack, improve the biodegradability of all returned sludges.Movable electrode plate is set simultaneously, side
Just the Effective Regulation of electrical parameter and fixed electrode is avoided to polarize for a long time.The improvement of the design effectively lifts whole system sewage disposal
Ability and sludge disintegration reduced training, and facilitate systematic parameter to regulate and control, easy to operate, cost is cheap.
Aerobic sigestion and the coupling of electrochemical process combination are realized, will further lift aerobic sigestion efficiency, while when electricity
Being pressed onto when reaching to a certain degree, which can also make sludge flco that lysis occur, cracks, and sludge release is difficult to attached water and the combination removed
Water, follow-up dehydration settling property is improved, is reduced sludge in-situ, reduce sludge subsequent treatment disposal difficulty.Both routine can be carried out
Denitrogenation dephosphorizing reaction in sewage disposal, again sludge aerobic can be promoted to digest and make sludge lysis reach sludge with electronic sludge to subtract
The effect of amount, electric device are integrated with Aerobic Pond, save space.Movable electrode plate is provided with simultaneously, facilitates electrical parameter to have
Effect regulation and control, make electronic parameter more optimize
2nd, whole device carries out water delivery using sludge pump, without worrying due to being short of power caused by hydraulic loss, flow
It can be controlled by valve and flowmeter.
3rd, AAO agent sets are all stirred per part with magnetic agitation oar, are settled in advance to prevent sludge, are made sludge homogeneous
Distribution.The aeration quantity of aerator can both play aeration effect, can play stirring action again.
The 4th, mass air flow sensor is housed at aeration tube, by controlling tolerance size, play aeration agitation double action.
5th, sludge bucket bottom is provided with mud return line, and sludge natural back flow can be realized using hydrostatic pressing.Sludge bucket bottom
Provided with gate valve and flowmeter, it is 200~300% to ensure return sludge ratio.
6th, the present apparatus can not only make mud decrement, the nitrogen phosphorus in sewage can also be removed simultaneously, at sewage sludge
There is very big Research Significance in terms of reason.
7th, AAO body tops are equipped with magnetic stirring apparatus, and agitating paddle is close to bottom surface.Agitating paddle can be pivoted, outside it
Portion is enclosed with inert material, can effectively prevent from influenceing caused by anaerobic fermentation environment, and do not influence magnetic force sensing.
Brief description of the drawings
Fig. 1 is electrochemistry-AAO apparatus structure schematic diagrams of the present invention；
Fig. 2 is electrochemistry-AAO device top views.
In figure, 1- storage cisterns, 2- gate valves, 3- sludge pumps, 4- flowmeters, 5- anaerobic ponds, 6- rectangle effluent weirs, 7- anoxics
Pond, 8- magnetic agitation oars, 9- Aerobic Ponds, 10- battery lead plates, 11- aeration heads, 12- battery lead plate grooves, 13- sedimentation basins, the legs of 14- tetra-
Foot stool, 15- air blowers, 16- mass air flow sensor, 17- supernatant outlets, 18- two-way voltage-stabilizing dc sources.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples, but protection scope of the present invention not by accompanying drawing and
Embodiment is limited.
Embodiment 1
The present embodiment reduces the electrochemistry-AAO devices of Sludge in Sewage Treatment amount, including storage cistern, sludge import, main body
AAO devices, agitating device, electric device, sedimentation basin, sludge supernatant outlet composition, main body A AO devices include anaerobic pond 5, lacked
Oxygen pond 7 and Aerobic Pond 9, Aerobic Pond 9 are provided with porous electrode plate 10 parallel to water (flow) direction both sides and form electrochemical cell, may move
Battery lead plate 10 includes positive plate, minus plate and power supply, and the positive plate material is titanium-based ruthenium iridium coating layer electrode, and negative electrode plate material is
Pure Ti electrode, multiple holes is laid in anode plate and cathode plate, battery lead plate is fixed by battery lead plate groove 12, can be along battery lead plate
Groove 12 moves, and the spacing of two battery lead plate 10 can adjust；Power supply is two-way voltage-stabilizing dc source 18.Storage cistern 1 is uncovered
Lucite body.AAO body tops are connected to oral siphon, the top seal of anaerobic pond 5, and device top is equipped with magnetic stirring apparatus, stirred
Mixing oar can be pivoted close to bottom surface, agitating paddle, and its outer wrap has inert material；Pass through square between anaerobic pond and anoxic pond
Shape weir is kept communicating, and top is not closed, and bottom surface is equipped with magnetic agitation oar 8；It is connected between anoxic pond 7 and Aerobic Pond 9 by crest of weir
It is logical；There are 4 aeration heads 11 bottom surface of Aerobic Pond 9, is aerated by air blower 15；Aerobic Pond 9 passes through pipeline water outlet.On sedimentation basin 13
It is truncated rectangular pyramids to hold as cuboid, lower end, and the two forms one, and inert material is polytetrafluoroethylene (PTFE).
Embodiment 2
The present embodiment reduces the electrochemistry-AAO devices of Sludge in Sewage Treatment amount, including storage cistern, sludge import, main body
AAO devices, agitating device, electric device, sedimentation basin, sludge supernatant outlet composition, main body A AO devices include anaerobic pond 5, lacked
Oxygen pond 7 and Aerobic Pond 9, Aerobic Pond 9 are provided with porous electrode plate 10 parallel to water (flow) direction both sides and form electrochemical cell, may move
Battery lead plate 10 includes positive plate, minus plate and power supply, and the positive plate material is titanium-based ruthenium iridium coating layer electrode, and negative electrode plate material is
Pure Ti electrode, multiple holes is laid in anode plate and cathode plate, battery lead plate is fixed by battery lead plate groove 12, can be along battery lead plate
Groove 12 moves, and the spacing of two battery lead plate 10 can adjust；Power supply is two-way voltage-stabilizing dc source 18.Storage cistern 1 is uncovered
Lucite body.AAO body tops are connected to oral siphon, the top seal of anaerobic pond 5, and device top is equipped with magnetic stirring apparatus, stirred
Mixing oar can be pivoted close to bottom surface, agitating paddle, and its outer wrap has inert material；Pass through square between anaerobic pond and anoxic pond
Shape weir is kept communicating, and top is not closed, and bottom surface is equipped with magnetic agitation oar 8；It is connected between anoxic pond 7 and Aerobic Pond 9 by crest of weir
It is logical；There are 6 aeration heads 11 bottom surface of Aerobic Pond 9, is aerated by air blower 15；Aerobic Pond 9 passes through pipeline water outlet.On sedimentation basin 13
It is truncated rectangular pyramids to hold as cuboid, lower end, and the two forms one, and inert material is polyvinyl chloride.
Embodiment 3
The present embodiment reduces the electrochemistry-AAO devices of Sludge in Sewage Treatment amount, including storage cistern, sludge import, main body
AAO devices, agitating device, electric device, sedimentation basin, sludge supernatant outlet composition, main body A AO devices include anaerobic pond 5, lacked
Oxygen pond 7 and Aerobic Pond 9, Aerobic Pond 9 are provided with porous electrode plate 10 parallel to water (flow) direction both sides and form electrochemical cell, may move
Battery lead plate 10 includes positive plate, minus plate and power supply, and the positive plate material is titanium-based ruthenium iridium coating layer electrode, and negative electrode plate material is
Pure Ti electrode, multiple holes is laid in anode plate and cathode plate, battery lead plate is fixed by battery lead plate groove 12, can be along battery lead plate
Groove 12 moves, and the spacing of two battery lead plate 10 can adjust；Power supply is two-way voltage-stabilizing dc source 18.Storage cistern 1 is uncovered
Lucite body.AAO body tops are connected to oral siphon, the top seal of anaerobic pond 5, and device top is equipped with magnetic stirring apparatus, stirred
Mixing oar can be pivoted close to bottom surface, agitating paddle, and its outer wrap has inert material；Pass through square between anaerobic pond and anoxic pond
Shape weir is kept communicating, and top is not closed, and bottom surface is equipped with magnetic agitation oar 8；It is connected between anoxic pond 7 and Aerobic Pond 9 by crest of weir
It is logical；There are 8 aeration heads 11 bottom surface of Aerobic Pond 9, is aerated by air blower 15；Aerobic Pond 9 passes through pipeline water outlet.On sedimentation basin 13
It is truncated rectangular pyramids to hold as cuboid, lower end, and the two forms one, and inert material is polyethylene.
During work, sewage enters AAO devices by storage cistern 1 by sludge pump 3, and flow is controlled by flowmeter 4, initially entered
Anaerobic pond 5, anaerobic pond is equipped with magnetic agitation oar 8, upper end sealing, keeps anaerobic state in pond, and is slowly stirred and keeps sludge equal
It is even, with anti-settling.In this part, polyP bacteria carries out the release reaction of phosphorus in sludge.
There is rectangle effluent weir 6 between anaerobic pond and anoxic pond, sludge enters anoxic pond 7, anoxic pond by rectangle effluent weir 6
7 upper ends are not closed, and are thus made a distinction with anaerobic pond 5.Sludge is taken off in the reaction that anoxic pond 7 occurs for denitrifying bacteria
Nitrogen.
Sewage enters Aerobic Pond 9 by crest of weir.The bottom of Aerobic Pond 9 is provided with aeration head 11, is aerated by air blower 15.
The effect of aeration can both provide oxygen for bacterium, while also act as stirring action, make sludge homogeneous.Enter in the sludge of Aerobic Pond 9
Act charitably oxygen digestion reaction, rapid microbial growth, metabolic breakdown large amount of organic matter.
In Aerobic Pond 9, Aerobic Pond aeration quantity is controlled by air blower 15 and mass air flow sensor 16.Parallel to water (flow) direction
Device both sides are provided with two porous metal electrodes 10, and anode is titanium-based ruthenium iridium coating layer electrode, and negative electrode is porous pure titanium electrode.Electrode
Plate 10 can fix/mobile, the external two-way voltage-stabilizing dc source 18 of battery lead plate 10 by battery lead plate groove 12 in Aerobic Pond.When
When applying suitable distance between suitable voltage and two battery lead plates of selection, sludge aerobic digestive efficiency can be effectively excited, makes micro- life
Thing metabolism enhancing, reduces the content of organic matter in sludge, reaches the purpose of mud decrement；Another aspect electric field can make sludge flco
It is destroyed, promote sludge lysis, discharge and more combine water, improve and be difficult to clearance of the removing with reference to water in sludge, make dirt
Mud volume greatly reduces, and realizes decrement.Aerobic Pond sewage enters sedimentation basin 13 by pipeline, carries out sludge settling, sedimentation basin 13
Bottom is provided with sludge refluxing apparatus, by sludge reflux pump by sludge reflux into anaerobic pond.The bottom of sedimentation basin 13 is provided with gate valve,
Return sludge ratio is controlled 200~300%.Returned sludge is improved in anaerobic pond using carbon source, improves wastewater purification efficiency.
Sludge supernatant can pass through the discharge of outlet 17.
Claims (6)
1. reducing the electrochemistry-AAO devices of Sludge in Sewage Treatment amount, the device includes storage cistern, sludge import, main body A AO
Device, magnetic stirring apparatus, electric device, mudpan, sludge supernatant outlet composition, the main body A AO devices include
Anaerobic pond, anoxic pond and Aerobic Pond, it is characterised in that：The Aerobic Pond is provided with porous electrode plate structure parallel to water (flow) direction both sides
Into electrochemical cell, movable electrode plate includes positive plate, minus plate and power supply, and the positive plate material is titanium-based ruthenium iridium coating layer
Electrode, negative electrode plate material are pure Ti electrode, lay multiple holes in anode plate and cathode plate, battery lead plate is carried out by battery lead plate groove
It is fixed, it can be moved along battery lead plate groove, two battery lead plate spacing can adjust；The power supply is two-way voltage-stabilizing dc source.
2. according to the electrochemistry-AAO devices for reducing Sludge in Sewage Treatment amount described in claim 1, it is characterised in that：Institute
State the lucite body that storage cistern is uncovered.
3. according to the electrochemistry-AAO devices for reducing Sludge in Sewage Treatment amount described in claim 1, it is characterised in that：Institute
State AAO body tops and be connected to oral siphon, anaerobic pond top seal, top is equipped with magnetic stirring apparatus, and agitating paddle stirs close to bottom surface
Mixing oar can be pivoted, and its outer wrap has inert material；Keep communicating by rectangular weir between anaerobic pond and anoxic pond, on
Portion does not close, and bottom surface is equipped with magnetic agitation oar；It is connected between anoxic pond and Aerobic Pond by crest of weir；Aerobic Pond bottom surface has 4~8
Individual aeration head, is aerated by air blower；Aerobic Pond passes through pipeline water outlet.
4. electrochemistry-AAO the devices of Sludge in Sewage Treatment amount are reduced as claimed in claim 1, it is characterised in that：The dirt
Mud sedimentation basin upper end is cuboid, and lower end is truncated rectangular pyramids, and the two forms one.
5. electrochemistry-AAO the devices of Sludge in Sewage Treatment amount are reduced as claimed in claim 3, it is characterised in that：It is described lazy
Property material can be polytetrafluoroethylene (PTFE), polyvinyl chloride or polyethylene in one kind.
6. the processing method of the electrochemistry-AAO devices of Sludge in Sewage Treatment amount is reduced as claimed in claim 1, specific bag
Include following steps：
(1) sewage enters AAO devices by sludge pump by storage cistern, initially enters anaerobic pond, anaerobic pond sewage passes through agitating paddle
Stirring, keep sludge homogeneous；
(2) sewage enters anoxic pond by crest of weir, and sewage is stirred by agitating paddle, keeps sludge homogeneous；
(3) sewage enters Aerobic Pond, and the on the one hand aerobic sigestion for sludge provides oxygen, on the other hand to carry out electricity to sludge
It is dynamic, form sludge electrochemistry and crack decrement unit, realize that sludge disintegration is reduced by two interpolar electro ultrafiltrations；
(4) the Aerobic Pond sewage through electrochemical pre-treatment enters mudpan by pipeline, carries out sludge settling；
(5) clarifier sludge is back in anaerobic pond by sludge reflux pump, the returned sludge biodegradability after electrochemical treatments
Improve, the carbon source that supplement anaerobic pond biochemical reaction needs, improve biochemical efficiency, sewage treating efficiency further improves；
(6) sludge supernatant is discharged by sludge supernatant outlet.
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| CN201711181439.9A CN107746164B (en) | 2017-11-23 | 2017-11-23 | electrochemical-AAO device for reducing sludge amount in sewage treatment and treatment method thereof |
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| CN201711181439.9A CN107746164B (en) | 2017-11-23 | 2017-11-23 | electrochemical-AAO device for reducing sludge amount in sewage treatment and treatment method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109081539A (en) * | 2018-09-06 | 2018-12-25 | 昆山绿威环保科技有限公司 | The processing method of electrochemistry mud decrement |
| CN113402111A (en) * | 2021-06-03 | 2021-09-17 | 哈尔滨工程大学 | Biological/photoelectric/solar coupling sewage treatment integrated device |
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| CN207685100U (en) * | 2017-11-23 | 2018-08-03 | 沈阳建筑大学 | Reduce the electrochemistry-AAO devices of Sludge in Sewage Treatment amount |
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| US6395176B1 (en) * | 1995-11-02 | 2002-05-28 | D-H2O L.L.C. | Method for treating waste-activated sludge using electroporation |
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| CN113402111A (en) * | 2021-06-03 | 2021-09-17 | 哈尔滨工程大学 | Biological/photoelectric/solar coupling sewage treatment integrated device |
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| Publication number | Publication date |
|---|---|
| CN107746164B (en) | 2023-06-09 |
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