CN107892409A - A kind of efficient reuse method of eider down industrial wastewater and its device - Google Patents
A kind of efficient reuse method of eider down industrial wastewater and its device Download PDFInfo
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
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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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
- C02F1/722—Oxidation by peroxides
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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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/78—Details relating to ozone treatment devices
- C02F2201/782—Ozone generators
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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Abstract
The present invention relates to a kind of efficient reuse method of eider down industrial wastewater and its device, the device includes pretreatment system, ultrafiltration system, decolouring desalting system, concentrated water processing system.Eider down industrial production wastewater removes partial organic substances, bulky grain suspension after biochemical treatment, into pretreatment system.Pretreatment system water outlet enters ultrafiltration system and removes bacterium, Escherichia coli, solid suspension in waste water, reduces turbidity, suspension and colloidal substance, reduces pollution index；Ultrafiltration system water outlet enters back into decolouring desalting system, removes colourity in water quality, salinity material, after water outlet enters mixing system reuse produce；The concentrated water of decolouring desalting system qualified discharge after advanced oxidation degradation is handled.70 ~ 90% wastewater recycle rate and more preferable reuse water quality can be achieved in the present invention; use it for washing down; there is positive effect to lifting Down and Feather, while solve that enterprise water use amount is big and the difficulty of discharge of wastewater, enterprise's long term growth and fwaater resources protection are significant.
Description
Technical field
The present invention relates to field of waste water treatment, in particular to the efficient reuse method of eider down industrial wastewater；In addition, this
Invention also relates to the device of the efficient reuse of eider down industrial wastewater.
Background technology
Down products industry is a rising industry, and China is producing country and the outlet of down products maximum in the world
State, while still maximum down products country of consumption in the world.But need to consume in eider down raw wool process (washing down)
The water resource largely cleaned, while produce the waste water of high pollution.Therefore, the treatment for reuse of washing down industrial wastewater is to protecting water
Environment and saving water resource are significant.
Need to be washed raw wool (drake feather, goose feather) in Eider down processing production process, washing includes previous cleaning, cleaning and rinsing
Step, non-phosphate detergent, hydrogen peroxide, deodorant are added in water-washing process, with except degreasing, dust and peculiar smell.Eider down Industry Waste
Water is mainly produced by rinsing machine (previous cleaning, cleaning, rinsing) and centrifugal separator (dehydration).Washed feather ＆ down suede waste water quality feature master
It is protein, animal fat and a small amount of inorganic matter to want pollutant, soil, sand grains, the excrement of the adhesion of raw material feather, a small amount of detergent
With micro deodorant.
At present to wash suede Industrial Wastewater Treatment mainly using " grid, air supporting, hydrolysis acidification, bio-contact oxidation, sand filtration,
Sterilization " method, it is general using the effluent quality of these processing methods, it is only capable of reaching general discharge standard or reuse requirement.China
Patent CN202265484U proposes a kind of down feather wastewater recycling system, including can lead to the regulating reservoir of eider down waste water, and regulating reservoir connects
Be connected to sewage pump, described sewage pump be connected with by sewage pipe may filter that Down and Feather drag for a mao machine, drag for a mao machine
Primary biochemistry pool is connected with, filler is provided with primary biochemistry pool, primary biochemistry pool outlet is connected with medium sediment pool by sewage pipe, in
Inclined tube is provided with heavy pond, medium sediment pool is connected with secondary biochemical pond by sewage pipe, and the delivery port in secondary biochemical pond is connected with centre
Pond, water clarifier, water clarifier connect clear water reserviors by filtering ponds, and medium sediment pool, water clarifier are connected by sludge pipe
Connect sludge-tank.The system is mainly the processing up to standard discharge and generally conventional reuse, the system recycle-water to eider down industrial wastewater
Matter is difficult to meet to the colourity of eider down water scouring water, transparency, suspension, turbidity, salt index requirement.
With the most important standard GB/T 17685-2016 of China's Feather and down industry《Down and Feather》And GB/T 10288-
2016《The Down and Feather method of inspection》Issue and formal implement, it is meant that to washing down with water water quality it is also proposed that new requirement,
With reference to Feather and down industry water feature, develop the efficient reuse technology of eider down industrial wastewater and compel instantly.
Membrane separation technique is the technology of comparative maturity at present, therefore the integrated technique application based on membrane separation technique
In the dual treatment separate-recycling of eider down wash water, the efficient reuse of eider down washing waste water was both realized, has solved enterprise water use again
Demand.
The content of the invention
The purpose of the present invention is on the basis of existing technology, there is provided a kind of method of eider down industrial effluent reusing, can be with
Solve the problems, such as that eider down washing waste water treatment for reuse difficulty is big, Sewage treatment rate is low, reuse water quality inferiority and unstable.
Another mesh of the present invention is to provide a kind of device of the method for above-mentioned eider down industrial effluent reusing.
Technical scheme is as follows：
A kind of method of the efficient reuse of eider down industrial wastewater, it comprises the following steps：
(1) pre-process：Waste water caused by eider down industrial production after biochemical treatment, is pre-processed,
(2) ultrafiltration：Water outlet after step (1), ultrafiltration is carried out, until meeting index；
(3) decolouring desalination：Water quality meets the water outlet of index after step (2), carries out decolouring desalination；
In step (1), the pretreatment includes one in air-flotation system, filtering cloth filtering pool system or fibre-ball filtration system
Kind is several；The air-flotation system is dissolved gas floatator, Induced-draft air float machine or aeration air floatation machine；Preferably, the pretreatment is gone back
Including slag disposal system, the system is flame filter press or centrifuge.
Further, above-mentioned filtering cloth filtering pool includes filter cloth and filter tank, and the filter cloth is riser filter cloth, and filtering accuracy is 10~
30 μm, be not less than 60% to the solid suspension clearance in waste water, the filter cloth area of cleaning for whole filter cloth area 0.5~
1.5%, cleaning water consumption is less than 1%；The filter tank is riser movable type filter tank.
Further, above-mentioned fibre-ball filtration is steel circular tank, using fibrous nodules as filtrate, the filtrate polyester fiber
Spheroid or flat spheroid are fabricated to, fiber filtering layer porosity is more than 80%, and the rate of filtration is 30~80m/h；Preferably, it is described
Fibre-ball filtration using pressure type filter, may be selected from air-water backwashing, mechanical backlash is washed or raw water backwash in one kind or several
Kind, backwash water consumption accounting water production 1~3%.
In step (2), for the milipore filter that the ultrafiltration uses for inoranic membrane or organic film, average pore size is 0.01~0.1 μ
m；Membrane component in ultrafiltration is tubular type, hollow fiber form or board-like membrane component；Further, water quality does not meet finger in the ultrafiltration
Target water outlet is back to step (1) through backwash, flush cycle operation, continues to pre-process.
In step (3), the decolouring desalination includes multiple integrated membrane components in parallel or series, and the membrane component is anti-
Permeable membrane, the membrane material of the reverse osmosis membrane are polyamide, cellulose acetate or the composite being made up of both, the reverse osmosis membrane
Salt rejection rate not less than 98%, Water Sproading rate be 70%~90%；The membrane component is tubular type, hollow fiber form, board-like or volume
Formula membrane component.
Preferably, the decolouring desalination also includes concentrated water processing system.
Above-mentioned concentrated water processing system can be Fenton oxidation process or ozone oxidation process.
In a kind of scheme, the Fenton oxidation process uses electro-fenton process or chemical Fenton process.
In another scheme, ozone oxidation system is used during the ozone oxidation, it includes compressed air source unit, ozone is sent out
Raw device device, air-water contact device, exhaust gas processing device, monitoring and controlling instrument, wherein ozone generator device using liquid oxygen or
Air is source of the gas, and air-water contact device is microporous diffuser, bubble tower, injector or turbine-type mixer, and exhaust gas processing device is
Electrical heating failure mode or catalyst failure mode.
A kind of efficient reclamation set of eider down industrial wastewater, it includes pretreatment system, ultrafiltration system, decolouring desalting system,
The delivery port of the pretreatment system is connected by pipeline with the water inlet of the ultrafiltration system, the backflow of the ultrafiltration system
Water out is connected by pipeline with the water inlet of the pretreatment system, and the delivery port of the ultrafiltration system removes with the decolouring
Salt system is connected.
The pretreatment system includes air-flotation system, filtering cloth filtering pool system or one kind or several in fibre-ball filtration system
Kind；Preferably, the pretreatment system also includes slag disposal system, it is furthermore preferred that the slag disposal system is flame filter press
Or centrifuge；
Further, air-flotation system is dissolved gas floatator, Induced-draft air float machine or aeration air floatation machine；
Further, filtering cloth filtering pool system includes filter cloth and filter tank, and filter cloth is riser filter cloth；Filter tank is the portable filter of riser
Riser filter, back purge system, mobile crane device and mud discharging device are contained in pond, the filter tank；
Further, fibre-ball filtration system is steel circular tank；
Membrane component in the ultrafiltration system is tubular type, hollow fiber form or board-like；
The decolouring desalting system includes multiple integrated membrane components in parallel or series, and the membrane component is tubular type, hollow
Fiber type, board-like or rolling；Preferably, the decolouring desalination also includes concentrated water processing system, and the concentrated water processing system can adopt
With ozone oxidation system, it includes compressed air source unit, ozone generator device, air-water contact device, exhaust gas processing device, monitoring control
Instrument processed.
It is as follows using technical scheme, advantage:
The method and its device of a kind of efficient reuse of eider down industrial wastewater provided by the invention, solve eider down industrial wastewater
Treatment for reuse difficulty is big, Sewage treatment rate is low, recycle-water salt accumulation effect, reuse water quality inferiority and unstable serial problem.It is logical
Higher wastewater recycle rate and more preferable reuse water quality can be obtained by crossing the present invention, and salt rejection rate is not less than 98%, Water Sproading rate
70%~90%.Recycle-water is used for washing down has positive effect to lifting Down and Feather, is enterprise's extra earning gain, solves
Enterprise water use amount is big and the difficulty of discharge of wastewater, and enterprise's long term growth and fwaater resources protection are significant.
Brief description of the drawings
Fig. 1 is the efficient reuse method flow chart of eider down industrial wastewater.
Embodiment
By following examples and with reference to accompanying drawing to the present invention a kind of efficient reuse of eider down industrial wastewater method and its
Device is further described, but these embodiments do not form any restrictions to the present invention.
Embodiment 1：
Anhui eider down factory eider down production waste water recycling washes suede water, method flow diagram such as Fig. 1.Eider down production waste water warp
Reach national standard after crossing conventional biochemical processing《Eider down industrial water pollution thing discharge standard (GB21901-2016)》The correlation of middle requirement
Pollutant emission limit.Waste water water is 100m3/ h, bulky grain suspension and partial organic substances are removed by pretreatment system,
Pretreatment uses dissolved gas floatator and filtering cloth filtering pool, and slag caused by pretreatment is handled by flame filter press.Filtering cloth filtering pool is shifting
Dynamic riser formula, about 10 μm of filter cloth aperture, operation is full-automatic, can continuously filter.Pretreatment workshop section goes to the suspension in waste water
Except rate is more than 82%.The water outlet of pretreatment workshop section further removes bacterium, microorganism, the suspension of molecule into ultrafiltration system
Impurity, it is ensured that decolouring desalting system influent quality, ultrafiltration system backwash and flushing waste water are back to pretreatment water inlet.Ultrafiltration uses
Filtering accuracy be 0.03 μm Kynoar (PVDF) material external pressure type hollow fiber milipore filter, operating pressure be 0.02~
Between 0.2Mpa, membrane flux 50L/m2·h.Ultra-filtration water water outlet after decolouring desalting system meets reuse requirement, water quality
Situation is as shown in the table.Decolouring desalting system is connected using multistage reverse osmosis units and parallel combination：The production water of one section of counter-infiltration
Reuse after being mixed with two sections of reverse osmosis produced waters, the concentrated water of one section of counter-infiltration further reclaim waste water into two sections of reverse osmosis units
Amount, two sections of reverse osmosis concentrated waters are because pollution factor is higher, qualified discharge after being handled into concentrated water processing system ozone oxidation workshop section.One
The Sewage treatment rate of section reverse osmosis units is 75%, and the Sewage treatment rate of two sections of reverse osmosis units is 60%.Through this technique depth
Reuse water is 88.5m after processing3/ h, waste water comprehensive recovery nearly 90%, specific water sample detection index are shown in Table 1.
Table 1
Embodiment 2
Jiangsu eider down Co., Ltd eider down produces waste water advanced treatment recovery in washing suede industrial water, and method flow diagram is such as
Fig. 1.Eider down production waste water reaches the newest issue of country after biochemical system is handled《Eider down industrial water pollution thing discharge standard
(GB21901-2016)》In require pollutant emission limit.Biochemical tail water water is 160m3/ h, waste water is successively by pretreatment
The dissolved gas floatator and fiber ball filter of workshop section remove bulky grain suspension and partial organic substances, slag caused by pretreatment pass through
Flame filter press processing.Wherein fiber ball filter is steel circular tank, is filtered using pressure type.Fiber-ball filter media polyester
Fiber is fabricated to flat spheroid, rate of filtration 40m/h, using air-water backwashing, backwash water consumption accounting water production 2%.
Fiber ball filter water outlet enters milipore filter and removes bacterium, microorganism, the suspended contamination of molecule, to ensure counter-infiltration system
Influent quality of uniting requires that ultrafiltration system backwash, flushing waste water are back to pretreatment water inlet.Ultrafiltration uses filtering accuracy as 0.1 μm
Kynoar (PVDF) material hollow fiber ultrafiltration membrane, average operation pressure is 0.05Mpa, membrane flux 65L/m2·
h.Ultra-filtration water water outlet after counter-infiltration system meets reuse requirement, and water quality situation is as shown in the table.Decolouring desalting system is adopted
With two sections of reverse osmosis units of one-level, reverse osmosis concentrated water enters qualified discharge after the processing of concentrated water processing system ozone oxidation workshop section.Instead
The membrane component used is permeated for rolling polyamide composite film, for retaining salinity, COD, the average operation cross-film of counter-infiltration system
Pressure difference is 0.6MPa, and 20~35 DEG C of running temperature, reverse osmosis membrane is more than 98% to the clearance of salt, and Sewage treatment rate is
75%, reuse water is 120m after this technique advanced treating3/ h, specific water sample detection index are shown in Table 2.
Table 2
Claims (10)
- A kind of 1. method of the efficient reuse of eider down industrial wastewater, it is characterised in that it comprises the following steps：（1）Pretreatment：Waste water caused by eider down industrial production after biochemical treatment, is pre-processed,（2）Ultrafiltration：By step（1）Water outlet afterwards, ultrafiltration is carried out, until meeting index；（3）Decolouring desalination：By step（2）Water quality meets the water outlet of index afterwards, carries out decolouring desalination.
- 2. the method for the efficient reuse of eider down industrial wastewater according to claim 1, it is characterised in that the pretreatment includes One or more in air-flotation system, filtering cloth filtering pool system or fibre-ball filtration system；The air-flotation system be dissolved gas floatator, Induced-draft air float machine or aeration air floatation machine；Preferably, the pretreatment also includes slag disposal system, the system for flame filter press or Centrifuge.
- 3. the method for the efficient reuse of eider down industrial wastewater according to claim 2, it is characterised in that the filtering cloth filtering pool bag Filter cloth and filter tank are included, the filter cloth is riser filter cloth, and filtering accuracy is 10 ~ 30 μm, to the solid suspension clearance in waste water Not less than 60%, the filter cloth area of cleaning is the 0.5 ~ 1.5% of whole filter cloth area, and cleaning water consumption is less than 1%；The filter tank is Riser movable type filter tank.
- 4. the method for the efficient reuse of eider down industrial wastewater according to claim 2, it is characterised in that the fibre-ball filtration For steel circular tank, using fibrous nodules as filtrate, the filtrate is fabricated to spheroid or flat spheroid, fiber filtering layer with polyester fiber Porosity is more than 80%, and the rate of filtration is 30 ~ 80m/h；Preferably, the fibre-ball filtration is filtered using pressure type.
- 5. the method for the efficient reuse of eider down industrial wastewater according to claim 1, it is characterised in that what the ultrafiltration used Milipore filter is inoranic membrane or organic film, and average pore size is 0.01 ~ 0.1 μm；Membrane component in ultrafiltration is tubular type, hollow fiber form or Board-like membrane component.
- 6. the method for the efficient reuse of eider down industrial wastewater according to claim 1, it is characterised in that water quality in the ultrafiltration The water outlet for not meeting index is back to step through backwash, flush cycle operation（1）, continue to pre-process.
- 7. the method for the efficient reuse of eider down industrial wastewater according to claim 1, it is characterised in that the decolouring desalination bag Including multiple integrated membrane components in parallel or series, the membrane component is reverse osmosis membrane, the membrane material of the reverse osmosis membrane is polyamide, Cellulose acetate or the composite being made up of both, the salt rejection rate of the reverse osmosis membrane not less than 98%, Water Sproading rate be 70%~ 90%；The membrane component is tubular type, hollow fiber form, board-like or wound membrane element.
- 8. the method for the efficient reuse of eider down industrial wastewater according to claim 7, it is characterised in that the decolouring desalination is also Including concentrated water processing system, the concentrated water processing system can be Fenton oxidation process or ozone oxidation process, the Fenton oxidation Process uses electro-fenton process or chemical Fenton process；Ozone oxidation system is used during the ozone oxidation, it is filled including source of the gas Put, ozone generator device, air-water contact device, exhaust gas processing device, monitoring and controlling instrument, wherein ozone generator device is adopted It is source of the gas with liquid oxygen or air, air-water contact device is microporous diffuser, bubble tower, injector or turbine-type mixer, at tail gas It is electrical heating failure mode or catalyst failure mode to manage device.
- 9. a kind of efficient reclamation set of eider down industrial wastewater, it is characterised in that it includes pretreatment system, ultrafiltration system, decolouring Desalting system, the delivery port of the pretreatment system are connected by pipeline with the water inlet of the ultrafiltration system, the ultrafiltration The backflow water out of system is connected by pipeline with the water inlet of the pretreatment system, the delivery port of the ultrafiltration system with The decolouring desalting system is connected.
- 10. the efficient reclamation set of eider down industrial wastewater according to claim 9, it is characterised in thatThe pretreatment system includes the one or more in air-flotation system, filtering cloth filtering pool system or fibre-ball filtration system；It is excellent Choosing, the pretreatment system also includes slag disposal system, it is furthermore preferred that the slag disposal system is flame filter press or centrifugation Machine；Further, air-flotation system is dissolved gas floatator, Induced-draft air float machine or aeration air floatation machine；Further, filtering cloth filtering pool system includes filter cloth and filter tank, and filter cloth is riser filter cloth；Filter tank is riser movable type filter tank, Contain riser filter, back purge system, mobile crane device and mud discharging device in the filter tank；Further, fibre-ball filtration system is steel circular tank；The membrane component that the ultrafiltration system uses is tubular type, hollow fiber form or board-like；The decolouring desalting system includes multiple integrated membrane components in parallel or series, and the membrane component is tubular type, doughnut Formula, board-like or rolling；Preferably, the decolouring desalination also includes concentrated water processing system, and the concentrated water processing system can use smelly Oxygen oxidative system, it includes compressed air source unit, ozone generator device, air-water contact device, exhaust gas processing device, monitoring and controlling instrument Table.
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| CN113668073A (en) * | 2020-05-13 | 2021-11-19 | 宣城明佳羽绒有限公司 | Washing process for down feather processing |
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