CN109305712A - Powdered Activated Carbon filter device and technique for advanced treatment of wastewater - Google Patents
Powdered Activated Carbon filter device and technique for advanced treatment of wastewater Download PDFInfo
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- CN109305712A CN109305712A CN201811259452.6A CN201811259452A CN109305712A CN 109305712 A CN109305712 A CN 109305712A CN 201811259452 A CN201811259452 A CN 201811259452A CN 109305712 A CN109305712 A CN 109305712A
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- activated carbon
- powdered activated
- water
- valve
- filter device
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The present invention provides a kind of Powdered Activated Carbon filter device and technique for advanced treatment of wastewater, its device includes: row's charcoal pump, blender, middle water tank, Powdered Activated Carbon filter device, water producing tank, air compressor machine, row's charcoal pump is connected to by pipeline with the middle water tank, the middle water tank passes through pipeline, intake pump, circulating pump, inlet valve, recycle inlet valve, outer circulation valve, interior circulating valve, return valve and the Powdered Activated Carbon filter device, the Powdered Activated Carbon filter device passes through pipeline, backwashing pump, produce water valve, backwash inlet valve is connected to the water producing tank, the air compressor machine passes through pipeline, backwash intake valve is connected to the Powdered Activated Carbon filter device.The present invention uses the further treatment technique of Powdered Activated Carbon filtering, can effectively remove the dissolubility COD in sewage, have many advantages, such as that system operatio is simple, occupied area is small, effluent quality is good, operating cost is low, high degree of automation.
Description
Technical field
The present invention relates to technology of middle water recycle fields, and in particular to a kind of Powdered Activated Carbon mistake for advanced treatment of wastewater
Filter device and technique.
Background technique
The second half in 20th century, many countries are sharply increased with water, and water crisis occur in many areas, and water resources problems are complete
The world causes to pay attention to extensively.Point out in a report that World Commission on Environment and Development in 1988 proposes: " water resource is taking
Become the main problem to provoke a crisis in the whole world for petroleum ".
Treated sewage reusing has been internationally recognized " city second water source ", and the reuse of countries in the world centering water is all attached great importance to.
At abroad, such as Treated sewage reusing system is being widely used very early in the country such as Japan, Israel, the U.S., Australia, Canada
System, theirs is technologically advanced, laws and regulations also comparatively perfect, and the Treated sewage reusing consciousness of people is also stronger.And China, it is dirty
It in water reuse technology starting evening, is still in infancy at present, reuse technology falls behind relatively, and reusing sewage rate is relatively relatively low.
In order to solve the problems, such as water resource growing tension, while people find new water source, water conservation and waste water
Re-using is considered as of equal importance with the new water source of searching；China is a freshwater resources critical shortage and imbalance between supply and demand state outstanding
Family, shortage of water resources problem have become the serious restraining factors of national economy and social sustainable development, usable water resources
It is limited, the recycling of waste water is more urgent, and wastewater treatment and reuse has been inexorable trend；But domestic industrial wastewater
Reclamation rate has a long way to go compared with developed countries, therefore water-saving and reuse technology research and development, to China's sustainable development to closing weight
It wants.However, existing traditional handicraft is limited to dissolubility COD removal ability difficult to degrade, the work difficult to degrade such as printing and dyeing, petrochemical industry, papermaking
Pigment, dissolubility COD processing in industry wastewater treatment tail water are a great problem so far, and there is presently no relatively inexpensive efficient places
Reason means, dissolubility COD are an important restrictions factors for restricting Treated sewage reusing.Therefore, dissolubility in sewage how is removed
COD, the standard that the water quality that makes that treated reaches Treated sewage reusing become hot research topic.
Summary of the invention
The object of the present invention is to provide a kind of Powdered Activated Carbon filter devices and technique for advanced treatment of wastewater, use
The further treatment technique of Powdered Activated Carbon filtering, can effectively remove the dissolubility COD in sewage, have that system operatio is simple, accounts for
The advantages that ground area is small, effluent quality is good, operating cost is low, high degree of automation.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A kind of Powdered Activated Carbon filter device for advanced treatment of wastewater, including row charcoal pump, blender, middle water tank, powder
Last active carbon filtering device, water producing tank, air compressor machine, row's charcoal pump are connected to by pipeline with the middle water tank, the middle water tank
It is living by pipeline, intake pump, circulating pump, inlet valve, circulation inlet valve, outer circulation valve, interior circulating valve, return valve and the powder
Property charcoal filter device, the Powdered Activated Carbon filter device by pipeline, backwashing pump, produce water valve, backwash inlet valve with it is described
Water producing tank connection, the air compressor machine are connected to by pipeline, backwash intake valve with the Powdered Activated Carbon filter device.
According to above scheme, the blender is set to the napex center of the middle water tank.
According to above scheme, the Powdered Activated Carbon filter device includes that shell, precision stainless steel filtration core and powder are living
Property charcoal.
Middle water tank main function of the invention is temporary middle water, excessive and Powdered Activated Carbon and the well-mixed appearance of middle water
Device；Blender is that Powdered Activated Carbon and middle water are sufficiently mixed and provide power；Circulating pump filters dress in Powdered Activated Carbon of the invention
The vertical active carbon film layer stage is set up, Powdered Activated Carbon, middle water mixed liquid in water tank in extraction recycle it in filter element,
Gradually form active carbon film layer；Intake pump runs production water for system and provides driving force after active carbon film layer is formed；Powder activity
Charcoal filter device utilizes the composite filtering material based on Powdered Activated Carbon to organic in the superpower suction-operated removal waste water of organic matter
Object, coloration, stink etc.；Utilize Powdered Activated Carbon filter device precision stainless steel filtration core and powder activity carbon layer double filtration
Effect, effectively removes the substances such as particulate matter in middle water, suspended matter, colloid, dissolubility COD (TOC).Sewage treatment can be discharged
Comprehensive discharge standard level-one B class water or even worse water quality reach four class of earth's surface or even three classes water quality after processing；And
Water outlet in Treated sewage reusing field, processing can meet reverse osmosis membrane influent quality requirement；Water producing tank is Powdered Activated Carbon filtering
Device produces water collection tank, while providing anti-scouring water；Backwashing pump provides driving force for system backwash；Air compressor machine is air-water backwashing
Enough compressed airs are provided, stainless steel filtration core cleaning efficiency is improved by air-water backwashing, is backwashed more thorough.
Powdered Activated Carbon filter device of the invention is according to processing water size, by multiple Powdered Activated Carbon filter element groups
At, connect in parallel, lower part water inlet, top water outlet.
Circulation inlet valve of the invention, interior circulating valve, outer circulation valve, return valve, pass through outer circulation valve regulation outer circulation stream
Amount is to adjust inner recirculation flow amount；By return valve, control loop produces water regurgitant volume；Guarantee that Powdered Activated Carbon is in cyclic process
Even suspension state guarantees to form uniform active carbon film layer on stainless steel filter core.
The present invention also provides the filterers of the Powdered Activated Carbon filter device for advanced treatment of wastewater described in one kind
Skill, comprising the following steps:
(1) charcoal mem stage is established:
Powdered Activated Carbon puts into the middle water tank by dosing system, under the action of the blender with the middle water tank
Interior middle water is sufficiently mixed；It closes the inlet valve, produce water valve, backwash inlet valve, backwash intake valve, open the circulation water inlet
Valve, interior circulating valve, outer circulation valve, return valve, open the circulating pump；Powdered Activated Carbon and middle water mixed liquid pass through the circulation
Pump is delivered to the Powdered Activated Carbon filter device, recycles inside it；By controlling the outer circulation valve opening, adjust external
Circular flow is to adjust the Powdered Activated Carbon filter device inner recirculation flow amount；Reflux valve opening, control filtering are controlled simultaneously
Produce water regurgitant volume；
This step cycle water, filtering produce water and are back to the middle water tank, produce water by control inner recirculation flow amount and filtering
Flow guarantees that Powdered Activated Carbon keeps even suspension state, Powdered Activated Carbon filtering dress in the Powdered Activated Carbon filter device
Continuous production water is set, filtration core retains Powdered Activated Carbon, and Powdered Activated Carbon is gradually accumulated on filtration core, forms work in homogeneous thickness
Property charcoal film layer；
(2) filtering produces the water stage:
Close the circulating pump, circulation inlet valve, interior circulating valve, outer circulation valve, return valve, backwash inlet valve；Open institute
It states inlet valve, produce water valve, open the intake pump, waste water is delivered to by the Powdered Activated Carbon filtering dress by the intake pump
It sets, under absorption, filtration, removes Pollutants in Wastewater；Water is produced to be collected by water producing tank；
System stable operation, when the Powdered Activated Carbon filter device Inlet and outlet water pressure difference reaches setting value, system is needed
It backwashes；After activated carbon adsorption saturation, system producing water water quality can be decreased obviously, and at this moment need replacing active carbon；
(3) backwash stage:
It closes the intake pump, inlet valve, produce water valve, open backwash inlet valve, outer circulation valve, open the backwash
Pump, backwashes the Powdered Activated Carbon filter device using producing water as backwash water；In backwash process, backwashing water is broken
Powdered Activated Carbon and backwashing water are back to the middle water tank by outer circulation pipeline by bad activated charcoal membrane；Open the recoil
Intake valve, air compressor machine are washed, air-water backwashing is carried out；
After backwash, carbon membrane stages operating is established in repetition, after forming new activated charcoal membrane, can put into stabilization again
Operation.
Above-mentioned technique is further comprising the steps of:
(4) active carbon is replaced:
After powder electroless plating saturation, by backwash operation, Powdered Activated Carbon is all rinsed to middle water tank, then is led to
Saturation Powdered Activated Carbon is drained into regenerative system regeneration by the row's of mistake charcoal pump；After arranging charcoal, will newly it be lived by active carbon dosing system
Property charcoal or regenerated carbon add the water tank into backwash intake valve, repetition builds charcoal mem stage and can start the operation in a new period.
The beneficial effects of the present invention are:
1) the ingenious filter membrane for forming secondary filter net and Powdered Activated Carbon of the present invention combines, and utilizes powder activity
The advantages of charcoal adsorbs dissolved organic matter, coloration, stink etc., rejection high to suspended matter；Available high-quality water outlet, can
To be widely used in black and odorous water emergency processing, sewage mentions mark, Treated sewage reusing pretreatment etc. fields；
2) compared with traditional handicraft, the present invention can effectively remove soluble COD and coloration difficult to degrade in waste water, effectively solve
Certainly the pigment in the indegradable industrial effluents such as printing and dyeing, petrochemical industry, papermaking processing tail water, dissolubility COD handle this great problem；
3) compared with the membrane filtration process such as ultrafiltration membrane, the present invention is low to influent quality requirement, and contamination resistance is strong, can reduce
Pretreatment investment；Effluent quality is good, meets reverse osmosis membrane influent quality requirement, may replace the techniques such as ultrafiltration as reverse osmosis pre- place
Reason；
4) permeant flux of the invention is big, and occupied area is small, and operating cost is low；
5) renewable after activated carbon adsorption of the invention saturation；Active carbon quality after regeneration is equally even better than former living
Property charcoal, is recycling in filter element, system does not generate useless charcoal, will not cause secondary pollution to environment.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
In figure: 1, arranging charcoal pump；2, blender；3, middle water tank；4, intake pump, 5, circulating pump, 6, Powdered Activated Carbon filtering dress
It sets；7, water producing tank；8, backwashing pump；9, air compressor machine；10, inlet valve；11, inlet valve is recycled；12, outer circulation valve；13, interior circulation
Valve；14, water valve is produced；15, backwash inlet valve；16, return valve；17, intake valve is backwashed.
Specific embodiment
Technical solution of the present invention is illustrated with embodiment with reference to the accompanying drawing.
Embodiment 1, is shown in Fig. 1:
The present invention provides a kind of Powdered Activated Carbon filter device for advanced treatment of wastewater, including row's charcoal pumps 1, blender
2, middle water tank 3, Powdered Activated Carbon filter device 6, water producing tank 7, air compressor machine 9.
Row's charcoal pump 1 is connected to by pipeline with middle water tank 3, and middle water tank 3 passes through pipeline, intake pump 4, circulating pump 5, inlet valve
10, inlet valve 11, outer circulation valve 12, interior circulating valve 13, return valve 16 and Powdered Activated Carbon filter device 6, powder activity are recycled
Charcoal filter device 6 is connected to by pipeline, backwashing pump 8, production water valve 14, backwash inlet valve 15 with water producing tank 7, and air compressor machine 9 passes through
Pipeline, backwash intake valve 17 are connected to Powdered Activated Carbon filter device 6, and blender 2 is set to the napex center of middle water tank 3, powder
Last active carbon filtering device 6 includes shell, precision stainless steel filtration core and Powdered Activated Carbon.
Operation of the invention is broadly divided into four-stage: establishing charcoal mem stage, filtering produces water stage, backwash stage, work
Property charcoal replacement, technical process are as follows:
(1) charcoal mem stage is established:
Powdered Activated Carbon is filled under the action of blender 2 with middle water in middle water tank 3 by water tank 3 in dosing system investment
Divide mixing；It closes inlet valve 10, produce water valve 14, backwash inlet valve 15, backwash intake valve 17, open circulation inlet valve 11, interior
Circulating valve 13, outer circulation valve 12, return valve 16 open circulating pump 5；Powdered Activated Carbon is defeated by circulating pump 5 with middle water mixed liquid
It send to Powdered Activated Carbon filter device 6, recycles inside it；By controlling 12 aperture of outer circulation valve, outer loop flow is adjusted
To adjust 6 inner recirculation flow amount of Powdered Activated Carbon filter device；Reflux valve opening is controlled simultaneously, and control filtering produces water regurgitant volume；
This step cycle water, filtering produce water and are back to middle water tank 3.Water flow is produced by control inner recirculation flow amount and filtering
Amount guarantees that Powdered Activated Carbon keeps even suspension state in Powdered Activated Carbon filter device 6, and Powdered Activated Carbon filter device 6 connects
Continuous to produce water, filtration core retains Powdered Activated Carbon, and Powdered Activated Carbon is gradually accumulated on filtration core, forms active carbon in homogeneous thickness
Film layer；
(2) filtering produces the water stage:
Close circulating pump 5, circulation inlet valve 11, interior circulating valve 13, outer circulation valve 12, return valve 16, backwash inlet valve 15；
It opens inlet valve 10, produce water valve 14, open intake pump 4, waste water is delivered to by Powdered Activated Carbon filter device 6 by intake pump 4,
Under absorption, filtration, the pollutants such as suspended matter, coloration, organic matter, stink in waste water are removed；Water is produced to be received by water producing tank 7
Collection.
System stable operation, when 6 Inlet and outlet water pressure difference of Powdered Activated Carbon filter device reaches setting value, system needs anti-
It rinses；After activated carbon adsorption saturation, system producing water water quality can be decreased obviously, and at this moment need replacing active carbon；
(3) backwash stage:
It closes intake pump 4, inlet valve 10, produce water valve 14, open backwash inlet valve 15, outer circulation valve 12, open backwash
Pump 8, backwashes Powdered Activated Carbon filter device 6 using producing water as backwash water；In backwash process, backwashing water is destroyed
Powdered Activated Carbon and backwashing water are back to middle water tank 3 by outer circulation pipeline by activated charcoal membrane；Open backwash intake valve
17, air compressor machine 9 carry out air-water backwashing；It backwashes intake valve air compressor machine 9 and provides enough compressed airs for air-water backwashing,
Compressed air is passed through, and is greatly strengthened disturbance of the backwashing water in backwash intake valve Powdered Activated Carbon filter device 6, is increased
The big cleaning effect of backwash, while backwashing water time and backwash water can be reduced.
After backwash, carbon membrane stages operating is established in repetition, after forming new activated charcoal membrane, can put into stabilization again
Operation；
(4) active carbon is replaced:
After powder electroless plating saturation, Powdered Activated Carbon can all be rinsed by backwash operation to middle water tank 3,
Saturation Powdered Activated Carbon is drained by regenerative system regeneration by row's charcoal pump 1 again.
After arranging charcoal, new active carbon or regenerated carbon are added by the water into backwash intake valve by active carbon dosing system
Case 3, repeating aforesaid operations can stable operation.
The processing of actual waste water, treatment effect are carried out using this implementing device are as follows:
Certain industrial park dyeing waste water Treated sewage reusing engineering, design scale 40000m3/ d, intermediate water reuse system water intaking are work
Industry garden treatment of dyeing wastewater factory secondary clarifier effluent；Utilize the system process flow of the present invention water as in as shown in Figure 1
Reclaiming system preprocessing part, its Inlet and outlet water water quality indicator of system of the present invention are as follows:
| Project | COD(mg/L) | SS(mg/L) | Coloration | SDI | Conductivity (us/cm) |
| Water inlet | 110 | 30 | 120 | / | 7980 |
| Water outlet | 22 | 3 | 20 | 2.2 | 7980 |
Certain industry park composite wastewater handles engineering, design scale 10000m3/ d, design effluent quality reach " at town sewage
Manage factory's pollutant emission standard " (GB18918-2002) level-one A standard；System is cooperated of the present invention using conventional biochemical technique
System process flow as shown in Figure 1, processing after water outlet be better than level-one A standard；System Inlet and outlet water water quality is as follows:
Certain refuse landfill landfill leachate tail water mentions mark improvement project, design scale 500m3/ d, design effluent quality reach
" urban wastewater treatment firm pollutant emission standard " (GB18918-2002) level-one A standard.System uses system of the present invention
Process flow of uniting is as shown in Figure 1, water outlet is better than level-one A standard after actual motion processing；System Inlet and outlet water water quality is as follows:
The above embodiments are only used to illustrate and not limit the technical solutions of the present invention, although above-described embodiment to the present invention into
Gone detailed description, the related technical personnel of this field it is understood that can modify to the present invention or replace on an equal basis, but
Any modification and part replacement for not departing from spirit and scope of the invention should all be covered in scope of the presently claimed invention.
Claims (5)
1. a kind of Powdered Activated Carbon filter device for advanced treatment of wastewater, which is characterized in that including row's charcoal pump (1), stirring
Device (2), middle water tank (3), Powdered Activated Carbon filter device (6), water producing tank (7), air compressor machine (9), row's charcoal pump (1) pass through pipe
Road is connected to the middle water tank (3), and the middle water tank (3) passes through pipeline, intake pump (4), circulating pump (5), inlet valve (10), follows
Ring inlet valve (11), outer circulation valve (12), interior circulating valve (13), return valve (16) and the Powdered Activated Carbon filter device (6),
The Powdered Activated Carbon filter device (6) by pipeline, backwashing pump (8), produce water valve (14), backwash inlet valve (15) with it is described
Water producing tank (7) connection, the air compressor machine (9) pass through pipeline, backwash intake valve (17) and the Powdered Activated Carbon filter device
(6) it is connected to.
2. the Powdered Activated Carbon filter device according to claim 1 for advanced treatment of wastewater, which is characterized in that described
Blender (2) is set to the napex center of the middle water tank (3).
3. the Powdered Activated Carbon filter device according to claim 1 for advanced treatment of wastewater, which is characterized in that described
Powdered Activated Carbon filter device (6) includes shell, precision stainless steel filtration core and Powdered Activated Carbon.
4. a kind of filtering technique of the Powdered Activated Carbon filter device described in claim 1 for advanced treatment of wastewater, special
Sign is, comprising the following steps:
(1) charcoal mem stage is established:
Powdered Activated Carbon puts into the middle water tank (3) by dosing system, under the action of the blender (2) with the middle water
Case (3) Nei Zhongshui is sufficiently mixed；It closes the inlet valve (10), produce water valve (14), backwash inlet valve (15), backwash intake valve
(17), the circulation inlet valve (11), interior circulating valve (13), outer circulation valve (12), return valve (16) are opened, the circulation is opened
It pumps (5)；Powdered Activated Carbon and middle water mixed liquid pass through the circulating pump (5) and are delivered to the Powdered Activated Carbon filter device (6),
It recycles inside it；By controlling outer circulation valve (12) aperture, it is living to adjust the powder to adjust outer loop flow
Property charcoal filter device (6) inner recirculation flow amount；Return valve (16) aperture is controlled simultaneously, and control filtering produces water regurgitant volume；
This step cycle water, filtering produce water and are back to the middle water tank (3), produce water flow by control inner recirculation flow amount and filtering
Amount guarantees that the interior Powdered Activated Carbon of the Powdered Activated Carbon filter device (6) keeps even suspension state, Powdered Activated Carbon filtering dress
It sets (6) and continuously produces water, filtration core retains Powdered Activated Carbon, and Powdered Activated Carbon is gradually accumulated on filtration core, and it is uniform to form thickness
Active carbon film layer；
(2) filtering produces the water stage:
Close the circulating pump (5), circulation inlet valve (11), interior circulating valve (13), outer circulation valve (12), return valve (16), anti-
Wash inlet valve (15)；It opens the inlet valve (10), produce water valve (14), open the intake pump (4), pass through the intake pump
(4) waste water is delivered to the Powdered Activated Carbon filter device (6), under absorption, filtration, removes Pollutants in Wastewater；
Water is produced to be collected by water producing tank (7)；
System stable operation, when Powdered Activated Carbon filter device (6) the Inlet and outlet water pressure difference reaches setting value, system needs
Backwash；After activated carbon adsorption saturation, system producing water water quality can be decreased obviously, and at this moment need replacing active carbon；
(3) backwash stage:
It closes the intake pump (4), inlet valve (10), produce water valve (14), open backwash inlet valve (15), outer circulation valve (12),
The backwashing pump (8) are opened, the Powdered Activated Carbon filter device (6) is backwashed using producing water as backwash water；Instead
In flushing process, backwashing water destroys activated charcoal membrane, and Powdered Activated Carbon and backwashing water are back to institute by outer circulation pipeline
State middle water tank (3)；The backwash intake valve (17), air compressor machine (9) are opened simultaneously, air-water backwashing is carried out；
After backwash, carbon membrane stages operating is established in repetition, after forming new activated charcoal membrane, can put into stable fortune again
Row.
5. the filtering technique of the Powdered Activated Carbon filter device according to claim 1 for advanced treatment of wastewater, special
Sign is, further comprising the steps of:
(4) active carbon is replaced:
After powder electroless plating saturation, by backwash operation, Powdered Activated Carbon is all rinsed into backwash intake valve
Water tank (3), then Powdered Activated Carbon will be saturated by row's charcoal pump (1) and drain into regenerative system regeneration；After arranging charcoal, pass through active carbon
Dosing system adds new active carbon or regenerated carbon into valve water tank (3), and charcoal mem stage is built in repetition can start a new period
Operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259452.6A CN109305712A (en) | 2018-10-26 | 2018-10-26 | Powdered Activated Carbon filter device and technique for advanced treatment of wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811259452.6A CN109305712A (en) | 2018-10-26 | 2018-10-26 | Powdered Activated Carbon filter device and technique for advanced treatment of wastewater |
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| Publication Number | Publication Date |
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| CN109305712A true CN109305712A (en) | 2019-02-05 |
Family
ID=65222144
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811259452.6A Pending CN109305712A (en) | 2018-10-26 | 2018-10-26 | Powdered Activated Carbon filter device and technique for advanced treatment of wastewater |
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| CN (1) | CN109305712A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358138A (en) * | 2020-11-30 | 2021-02-12 | 吴江华衍水务有限公司 | Algae micro-polluted raw water treatment device and treatment method |
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2018
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| JP2008229581A (en) * | 2007-03-23 | 2008-10-02 | Metawater Co Ltd | Water purification method |
| WO2015110091A1 (en) * | 2014-01-22 | 2015-07-30 | 湖北君集水处理有限公司 | System and method for purifying waste water using powdered activated carbon |
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| CN112358138A (en) * | 2020-11-30 | 2021-02-12 | 吴江华衍水务有限公司 | Algae micro-polluted raw water treatment device and treatment method |
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