CN108529821A - Sheepskin processes effluent cycle and utilizes processing system and treatment process - Google Patents
Sheepskin processes effluent cycle and utilizes processing system and treatment process Download PDFInfo
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- CN108529821A CN108529821A CN201810380863.4A CN201810380863A CN108529821A CN 108529821 A CN108529821 A CN 108529821A CN 201810380863 A CN201810380863 A CN 201810380863A CN 108529821 A CN108529821 A CN 108529821A
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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
- C02F2001/007—Processes including a sedimentation step
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
- Water Treatment By Sorption (AREA)
Abstract
Sheepskin processing water consumption is big, generates large amount of sewage in fur processing cleaning process, chromate waste water is generated in tannery, the major pollutants in waste water are：COD, ammonia nitrogen, suspended matter, Cr VI etc..These sewage direct emissions not only pollute the environment, and can also cause water resource waste.The invention discloses a kind of sheepskin processing effluent cycles to utilize processing system and treatment process, can improve Biodegradability of Wastewater by hydrolysis acidification pool, accelerate follow-up sewage disposal, save the sewage disposal time, improve sewage treating efficiency；The full and uniform mixing of flocculant and sewage is reduced into the flocculation sediment time to accelerate flocculation sediment speed, improves sewage treating efficiency；Desilting area can be increased, precipitation is reduced and taken time, improve sewage treating efficiency.
Description
Technical field
The invention belongs to sheepskin processing effluent cycles to utilize technical field, and in particular to sheepskin processes effluent cycle at
Reason system and processing method.
Background technology
Sheepskin processing water consumption is big, and large amount of sewage is generated in fur processing cleaning process, is generated in tannery useless containing chromium
Water, the major pollutants in waste water are：COD, ammonia nitrogen, suspended matter, Cr VI etc..These sewage direct emissions can not only pollute ring
Border can also cause water resource waste.
Invention content
For the above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of sheepskin processing effluent cycle profit
With processing system and treatment process, sheepskin processing sewage is subjected to purified treatment and is recycled in fur manufacturing engineering, with
Water resource is saved, pollution of the sewage discharge to environment is reduced.
For this purpose, the present invention provides a kind of sheepskin processing effluent cycles to utilize processing system, including comprehensive wastewater collecting-tank
With accident pool, the comprehensive wastewater collecting-tank leads to sedimentation basin, sedimentation basin and gas by sewage pipe and water pump respectively with accident pool
Floating machine connection, the water outlet of air floatation machine are connect by sewage pipe with regulating reservoir, and regulating reservoir passes through sewage pipe and water pump and hydrolysis acid
Change pond connection；The water outlet of hydrolysis acidification pool leads to aerobic tank bottom, the water outlet and tube settling of aerobic tank by sewage pipe
Pond connects, and the water outlet of inclined-tube sedimentation tank is connect with three-level cleaning equipment, and water outlet and the reuse pool of three-level cleaning equipment connect
It connects；The bottom of the inclined-tube sedimentation tank is connect with hydrolysis acidification pool and sludge storage pool respectively by sludge pipe and dredge pump, sludge storage
Comprehensive wastewater collecting-tank is led in the top in pond by supernatant liquid pipe, and biochemistry is led in the bottom of sludge storage pool by sludge pipe and dredge pump
System；Air pump leads to the bottom of aerobic tank by air hose.
Preferably, the top of the air floatation machine is equipped with scum board, and drug reservoir passes through nutrition pencil and Teat pipette and air floatation machine
Connection.
Preferably, the aerobic tank includes level-one aerobic tank and two level aerobic tank.
Preferably, quartz sand is added in first filtering tank in the three-level cleaning equipment, behind two filtering tanks be added and live
Property charcoal, form three-stage filtration, the sewage handled recycles after reaching national environmental standard into workshop, active carbon filter
Filtrate in absorber, the quartz sand that bottom can load 0.15-0.4 meters high are inhaled, and as support layer, the particle of quartz sand can be used
20-40mm can load the activated carbon of 1.0-1.5 rice grain shapes on quartz sand as filter layer, and filling thickness is 1000-
2000mm；For the three-level cleaning equipment before charging, bottom filtrate quartz sand should carry out the stability test of solution, impregnate 24
Hour simultaneously meets claimed below：The incrementss of full solid are no more than 20mg/L, and the increase of oxygen demand is no more than 10mg/L, in alkali
Property medium in impregnate after, the increase of silica is no more than 10mg/L；Active carbon adsorption filter cylinder body is long using hydraulic analogy
Diameter designs the highly effective active carbon that specific surface area is more than 1000m2/g.
The present invention also provides a kind of sheepskin processing effluent cycles to utilize treatment process, comprises the following steps：
(1) production waste water is introduced into sedimentation basin, preliminary sedimentation 1 hour；
(2) the top clear water in step (1) is delivered in air floatation machine, PAC and PAM is successively added by nutrition pencil,
Xiang Shuizhong is passed through air, generates micro-bubble, and due to adhered to one another between bubble and fine suspension, formation suspended matter utilizes
The buoyance lift of bubble acts on, and floats to the water surface, foam or dross is formed, to enable the suspended material in water to detach, into promoting the circulation of qi
Floating processing 0.5-1 hour, while with scum board, scraping gentle steep of removing dross and reaching treatment effect；The PAC is aluminium polychloride,
PAM is polyacrylamide；
(3) air supporting water outlet in step (2) is flowed into regulating reservoir by the pipeline of air floatation machine, adequately with the aqueous fusion of regulating reservoir
It closes, keeps the water quality adjustment in sewage balanced；
(4) water in step (3) is delivered to hydrolysis acidification pool, while the sludge reflux in inclined-tube sedimentation tank is made extremely to be acidified
Chi Zhong makes macromolecule organic molecular breakdown in waste water, large biological molecule substance difficult to degrade be converted into the small of easily biological-degradable
Molecular substance improves waste water BOD/COD ratios, increases the impact resistance ability of biochemical system and reduces its processing load；
(5) water in step (4) is successively delivered to level-one aerobic tank and two level aerobic tank, in level-one aerobic tank and two level
The aerobic tank residence time is respectively 1.5-2.5 hours, and being passed through air makes oxygen concentration in sewage control in 2.5-3.0mg/L, profit
With activated sludge absorption degradable organic pollutant, aerobic microbiological utilizes the metabolism of itself under conditions of oxygen abundance
Organic matter is decomposed into carbon dioxide and water, degradable organic pollutant, and carries out self-reproduction, maintains the life of system middle and high concentration
Object group；
(6) water in step (5) is delivered to inclined-tube sedimentation tank and carries out precipitation process, the mixed liquor come out from aerobic tank exists
This mud-water separation, sewage supernatant squeeze into level-one quartz filter by pump, enter back into three-level cleaning equipment, make effluent quality
Reach the standard of recycling；Activity sludge reflux is to biochemical system after sludge precipitates in sludge storage pool, and upper layer sewage backflow is extremely
Comprehensive wastewater collecting-tank, is handled again.
(7) water in step (6) is delivered to reuse pool, to be delivered to workshop reuse, after testing, the sewage handled
It is recycled into workshop after reaching national environmental standard.
Preferably, the concrete operations of the step (2) are：The PAC of compound concentration 10-15% and a concentration of 0.1-0.3%
PAM；Control wastewater pH is 7.0-8.5, and temperature is controlled at 15-20 DEG C, and concentration 20-50g/m is first pressed under stirring3It adds
In PAC to waste water, stirring to PAC is uniformly dispersed, by concentration 0.3-0.6g/m3It adds in PAM to waste water, stirring to PAC disperses
Uniformly, it staticly settles 1 hour, then carries out air-flotation process 0.5-1 hours.
Preferably, the concrete operations of the step (5) are：, as culture medium, to have contained in the organic pollution in waste water
Under conditions of dissolved oxygen, activated sludge is continuously cultivated, its adsorption-condensation and oxygenolysis is recycled to purify in waste water
Organic pollution, including three phases：
A. absorption phase：Pollutant in sewage is formed with active sludge microorganism contact process by microorganism
Floccule body absorption and adhesion；
B. oxidation stage：Under aerobic conditions, it is nutrition that microorganism takes in internal organic matter using part by absorption, is closed
At cellular material, another part organic matter is decomposed metabolism, and releases energy；
C. the formation of floccule body and coagulative precipitation stage：The thalline of oxidation stage synthesis flocculates to form floccule body, passes through weight
Power precipitation is separated from the water out, and water is made to be purified.
Processing system and treatment process are utilized using above-mentioned sheepskin processing effluent cycle, sheepskin processing sewage is purified
It handles and recycles in fur manufacturing engineering, to save water resource, reduce pollution of the sewage discharge to environment.The present invention has
It has the advantage that and advantageous effect：
(1) present invention can improve Biodegradability of Wastewater by hydrolysis acidification pool, accelerate follow-up sewage disposal, save sewage
Processing time improves sewage treating efficiency；
(2) present invention can be reduced by the full and uniform mixing of flocculant and sewage, to accelerate flocculation sediment speed
The flocculation sediment time improves sewage treating efficiency；
(3) present invention can increase desilting area, reduce precipitation institute by setting coagulative precipitation tank to inclined-tube sedimentation tank
It takes time, improves sewage treating efficiency.
Description of the drawings
Fig. 1 is that the sheepskin processing effluent cycle of the present invention utilizes processing system schematic diagram；
Fig. 2 is to use sewage detection Comparative result before and after the processing system.
In figure：1- comprehensive wastewater collecting-tanks, 2- accident pools, 3- sedimentation basins, 4- air floatation machines, 41- scum boards, 5- regulating reservoirs,
6- hydrolysis acidification pools, 7- aerobic tanks, 71- level-one aerobic tanks, 72- two level aerobic tanks, 8- inclined-tube sedimentation tanks, the purification of 9- three-levels are set
It is standby, 10- reuse pools, 11- sludge storage pools, 12- biochemical systems, 13- air pumps, 14- drug reservoirs
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1, the present invention provides a kind of sheepskin processing effluent cycles to utilize processing system, including comprehensive wastewater collection
Pond 1 and accident pool 2, the comprehensive wastewater collecting-tank 1 lead to sedimentation basin 3 by sewage pipe and water pump respectively with accident pool 2, sink
Shallow lake pond 3 is connect with air floatation machine 4, and the water outlet of air floatation machine 4 is connect by sewage pipe with regulating reservoir 5, regulating reservoir 5 by sewage pipe and
Water pump is connect with hydrolysis acidification pool 6；The water outlet of hydrolysis acidification pool 6 leads to 7 bottom of aerobic tank by sewage pipe, aerobic tank 7
Water outlet is connect with inclined-tube sedimentation tank 8, and the water outlet of inclined-tube sedimentation tank 8 is connect with three-level cleaning equipment 9, three-level cleaning equipment 9
Water outlet connect with reuse pool 10；The bottom of the inclined-tube sedimentation tank 8 by sludge pipe and dredge pump respectively with hydrolysis acidification
Pond 6 and sludge storage pool 11 connect, and comprehensive wastewater collecting-tank 1, sludge storage pool are led in the top of sludge storage pool 11 by supernatant liquid pipe
Biochemical system 12 is led in 11 bottom by sludge pipe and dredge pump；Air pump 13 leads to the bottom of aerobic tank 7 by air hose.
The top of the air floatation machine 4 is equipped with scum board 41, and drug reservoir 14 is connected by nutrition pencil and Teat pipette with air floatation machine 4
It connects.
The aerobic tank 7 includes level-one aerobic tank 71 and two level aerobic tank 72.
Quartz sand is added in first filtering tank in the three-level cleaning equipment 8, behind two filtering tanks activated carbons, shape is added
At three-stage filtration, the sewage that has handled recycles after reaching national environmental standard into workshop, active carbon filter absorber
Interior filtrate, the quartz sand that bottom can load 0.15-0.4 meters high are inhaled, and as support layer, 20- can be used in the particle of quartz sand
40mm can load the activated carbon of 1.0-1.5 rice grain shapes on quartz sand as filter layer, and filling thickness is 1000-2000mm；Institute
Three-level cleaning equipment is stated before charging, bottom filtrate quartz sand should carry out the stability test of solution, impregnate 24 hours and accord with
It closes claimed below：The incrementss of full solid are no more than 20mg/L, and the increase of oxygen demand is no more than 10mg/L, in alkaline medium
After immersion, the increase of silica is no more than 10mg/L；Active carbon adsorption filter cylinder body designs ratio using hydraulic analogy major diameter
Surface area is more than the highly effective active carbon of 1000m2/g.
Fig. 2 is using sewage detection Comparative result before and after the processing system, and wherein West Sewage Disposal uses this hair
Bright sheepskin processing effluent cycle utilizes processing system.The results show that being carried using present treatment system processing the with obvious effects of waste water
It is high.
Some specific experiments are carried out using processing method for sheepskin of the present invention processing effluent cycle, specific implementation is for example
Under：
Embodiment 1：
The sheepskin processing effluent cycle of the present embodiment utilizes treatment process, comprises the following steps：
(1) production waste water is introduced into sedimentation basin, preliminary sedimentation 1 hour；
(2) the top clear water in step (1) is delivered in air floatation machine, the PAC of compound concentration 10-15% and a concentration of
The PAM of 0.1-0.3%；Control wastewater pH is 7.0-8.5, and temperature is controlled at 15-20 DEG C, and concentration 20- is first pressed under stirring
50g/m3It adds in PAC to waste water, stirring to PAC is uniformly dispersed, by concentration 0.3-0.6g/m3It adds in PAM to waste water, stirs
It is uniformly dispersed, staticly settles 1 hour to PAC, air is passed through into water, micro-bubble is generated, due to bubble and fine suspension
Between it is adhered to one another, form suspended matter, acted on using the buoyance lift of bubble, float to the water surface, foam or dross are formed, to make water
In suspended material detached, carry out air-flotation process 0.5-1 hour, while with scum board, scrape gentle steep of removing dross and reach place
Manage effect；The PAC is aluminium polychloride, and PAM is polyacrylamide；
(3) air supporting water outlet in step (2) is flowed into regulating reservoir by the pipeline of air floatation machine, adequately with the aqueous fusion of regulating reservoir
It closes, keeps the water quality adjustment in sewage balanced；
(4) water in step (3) is delivered to hydrolysis acidification pool, while the sludge reflux in inclined-tube sedimentation tank is made extremely to be acidified
Chi Zhong makes macromolecule organic molecular breakdown in waste water, large biological molecule substance difficult to degrade be converted into the small of easily biological-degradable
Molecular substance improves waste water BOD/COD ratios, increases the impact resistance ability of biochemical system and reduces its processing load；
(5) water in step (4) is successively delivered to level-one aerobic tank and two level aerobic tank, in level-one aerobic tank and two level
The aerobic tank residence time is respectively 1.5-2.5 hours, and being passed through air makes oxygen concentration in sewage control in 2.5-3.0mg/L, profit
With activated sludge absorption degradable organic pollutant, aerobic microbiological utilizes the metabolism of itself under conditions of oxygen abundance
Organic matter is decomposed into carbon dioxide and water, degradable organic pollutant, and carries out self-reproduction, maintains the life of system middle and high concentration
Object group；
Using contained in the organic pollution in waste water, as culture medium, under conditions of having dissolved oxygen, continuously culture activity is dirty
Mud recycles its adsorption-condensation and oxygenolysis to purify the organic pollution in waste water, including three phases：
A. absorption phase：Pollutant in sewage is formed with active sludge microorganism contact process by microorganism
Floccule body absorption and adhesion；
B. oxidation stage：Under aerobic conditions, it is nutrition that microorganism takes in internal organic matter using part by absorption, is closed
At cellular material, another part organic matter is decomposed metabolism, and releases energy；
C. the formation of floccule body and coagulative precipitation stage：The thalline of oxidation stage synthesis flocculates to form floccule body, passes through weight
Power precipitation is separated from the water out, and water is made to be purified.
(6) water in step (5) is delivered to inclined-tube sedimentation tank and carries out precipitation process, the mixed liquor come out from aerobic tank exists
This mud-water separation, sewage supernatant squeeze into level-one quartz filter by pump, enter back into three-level cleaning equipment, make effluent quality
Reach the standard of recycling；Activity sludge reflux is to biochemical system after sludge precipitates in sludge storage pool, and upper layer sewage backflow is extremely
Comprehensive wastewater collecting-tank, is handled again.
(7) water in step (6) is delivered to reuse pool, to be delivered to workshop reuse, after testing, the sewage handled
It is recycled into workshop after reaching national environmental standard.
Embodiment 2：
The present embodiment and embodiment 1 difference lies in：
In step (2), the PAM of the PAC of compound concentration 12% and a concentration of 0.2%；Control wastewater pH is 7.0-7.5, temperature
Degree control first presses concentration 30-50g/m at 15-18 DEG C under stirring3It adds in PAC to waste water, stirring is equal to PAC dispersions
It is even, by concentration 0.2-0.4g/m3It adds in PAM to waste water, stirring is uniformly dispersed to PAC, staticly settles 1 hour, carries out air supporting
Processing 0.7 hour.
It is respectively 2 hours in level-one aerobic tank and two level aerobic tank residence time in step (5), oxygen concentration control in sewage
System is in 2.5-2.7mg/L.
Embodiment 3：
The present embodiment and embodiment 1 difference lies in：
In step (2), the PAM of the PAC of compound concentration 15% and a concentration of 0.1%；Control wastewater pH is 8.0-8.5, temperature
Degree control first presses concentration 20-40g/m at 17-20 DEG C under stirring3It adds in PAC to waste water, stirring is equal to PAC dispersions
It is even, by concentration 0.5-0.6g/m3It adds in PAM to waste water, stirring is uniformly dispersed to PAC, staticly settles 1 hour, carries out air supporting
Processing 1 hour.
It is respectively 2.5 hours in level-one aerobic tank and two level aerobic tank residence time in step (5), oxygen concentration in sewage
Control is in 2.8-3.0mg/L.
1 water treatment effect of the present invention of table compares
Above-mentioned combination attached drawing is explained in detail embodiments of the present invention, but the present invention is not limited to above-mentioned implementations
Mode, one skilled in the relevant art within the scope of knowledge, can also make many variations to it.
Claims (7)
1. a kind of sheepskin processing effluent cycle utilizes processing system, which is characterized in that including comprehensive wastewater collecting-tank (1) and accident
Pond (2), the comprehensive wastewater collecting-tank (1) lead to sedimentation basin (3) by sewage pipe and water pump respectively with accident pool (2), precipitate
Pond (3) is connect with air floatation machine (4), and the water outlet of air floatation machine (4) is connect by sewage pipe with regulating reservoir (5), and regulating reservoir (5) passes through
Sewage pipe and water pump are connect with hydrolysis acidification pool (6)；The water outlet of hydrolysis acidification pool (6) leads to aerobic tank (7) by sewage pipe
The water outlet of bottom, aerobic tank (7) is connect with inclined-tube sedimentation tank (8), water outlet and the three-level cleaning equipment of inclined-tube sedimentation tank (8)
(9) it connects, the water outlet of three-level cleaning equipment (9) is connect with reuse pool (10)；The bottom of the inclined-tube sedimentation tank (8) passes through
Sludge pipe and dredge pump are connect with hydrolysis acidification pool (6) and sludge storage pool (11) respectively, and the top of sludge storage pool (11) passes through supernatant
Liquid pipe leads to comprehensive wastewater collecting-tank (1), and biochemical system (12) is led in the bottom of sludge storage pool (11) by sludge pipe and dredge pump；
Air pump (13) leads to the bottom of aerobic tank (7) by air hose.
2. sheepskin processing effluent cycle according to claim 1 utilizes processing system, which is characterized in that the air floatation machine
(4) top is equipped with scum board (41), and drug reservoir (14) is connect by nutrition pencil and Teat pipette with air floatation machine (4).
3. sheepskin processing effluent cycle according to claim 1 utilizes processing system, which is characterized in that the aerobic tank
(7) include level-one aerobic tank (71) and two level aerobic tank (72).
4. sheepskin processing effluent cycle according to claim 1 utilizes processing system, which is characterized in that the three-level purification
Quartz sand is added in first filtering tank in equipment (8), behind two filtering tanks activated carbons are added, form three-stage filtration, handled
Sewage reach national environmental standard after recycled into workshop, the filtrate in active carbon filter absorber, bottom can fill
It fills out 0.15-0.4 meters high of quartz sand to inhale, as support layer, 20-40mm can be used in the particle of quartz sand, can load on quartz sand
For the activated carbon of 1.0-1.5 rice grain shapes as filter layer, filling thickness is 1000-2000mm；
For the three-level cleaning equipment before charging, bottom filtrate quartz sand should carry out the stability test of solution, and it is small to impregnate 24
When and meet claimed below：The incrementss of full solid are no more than 20mg/L, and the increase of oxygen demand is no more than 10mg/L, in alkalinity
After being impregnated in medium, the increase of silica is no more than 10mg/L；
Active carbon adsorption filter cylinder body is more than 1000m using hydraulic analogy major diameter design specific surface area2The highly effective active carbon of/g.
5. a kind of sheepskin processing effluent cycle utilizes treatment process, which is characterized in that comprise the following steps：
(1) production waste water is introduced into sedimentation basin, preliminary sedimentation 1 hour；
(2) the top clear water in step (1) is delivered in air floatation machine, PAC and PAM, Xiang Shui is successively added by nutrition pencil
In be passed through air, generate micro-bubble, due to adhered to one another between bubble and fine suspension, form suspended matter, utilize bubble
Buoyance lift effect, float to the water surface, form foam or dross, to enable the suspended material in water to detach, carry out at air supporting
Reason 0.5-1 hour, while with scum board, scraping gentle steep of removing dross and reaching treatment effect；The PAC is aluminium polychloride, and PAM is
Polyacrylamide；
(3) air supporting water outlet in step (2) is flowed into regulating reservoir by the pipeline of air floatation machine, is adequately closed with the aqueous fusion of regulating reservoir,
Keep the water quality adjustment in sewage balanced；
(4) water in step (3) is delivered to hydrolysis acidification pool, while makes sludge reflux in inclined-tube sedimentation tank to acidification pool
In, so that macromolecule organic molecular breakdown in waste water, large biological molecule substance difficult to degrade is converted into small point of easily biological-degradable
Sub- substance improves waste water BOD/COD ratios, increases the impact resistance ability of biochemical system and reduces its processing load；
(5) water in step (4) is successively delivered to level-one aerobic tank and two level aerobic tank, it is aerobic in level-one aerobic tank and two level
The pond residence time is respectively 1.5-2.5 hours, and being passed through air makes oxygen concentration control in sewage utilize work in 2.5-3.0mg/L
Property sludge absorption degradable organic pollutant, aerobic microbiological will have under conditions of oxygen abundance using the metabolism of itself
Machine object is decomposed into carbon dioxide and water, degradable organic pollutant, and carries out self-reproduction, maintains the biota of system middle and high concentration
Body；
(6) water in step (5) is delivered to inclined-tube sedimentation tank and carries out precipitation process, the mixed liquor come out from aerobic tank is in this mud
Water detaches, and sewage supernatant squeezes into level-one quartz filter by pump, enters back into three-level cleaning equipment, effluent quality is made to reach
Recycle standard；Activity sludge reflux is to biochemical system, upper layer sewage backflow to synthesis after sludge precipitates in sludge storage pool
Wastewater collecting basin is handled again.
(7) water in step (6) is delivered to reuse pool, to be delivered to workshop reuse, after testing, the sewage handled reaches
It is recycled into workshop after national environmental standard.
6. sheepskin processing effluent cycle according to claim 5 utilizes treatment process, which is characterized in that the step (2)
Concrete operations be：The PAM of the PAC of compound concentration 10-15% and a concentration of 0.1-0.3%；Control wastewater pH is 7.0-8.5,
Temperature is controlled at 15-20 DEG C, and concentration 20-50g/m is first pressed under stirring3It adds in PAC to waste water, stirring to PAC disperses
Uniformly, by concentration 0.3-0.6g/m3It adds in PAM to waste water, stirring is uniformly dispersed to PAC, staticly settles 1 hour, then carry out
Air-flotation process 0.5-1 hours.
7. sheepskin processing effluent cycle according to claim 5 utilizes treatment process, which is characterized in that the step (5)
Concrete operations be：Using contained in the organic pollution in waste water, as culture medium, under conditions of having dissolved oxygen, continuously culture is lived
Property sludge, recycle its adsorption-condensation and oxygenolysis to purify the organic pollution in waste water, including three phases：
A. absorption phase：Pollutant in sewage with the wadding that in active sludge microorganism contact process, is formed by microorganism
Solidifying body absorption and adhesion；
B. oxidation stage：Under aerobic conditions, it is nutrition that microorganism takes in internal organic matter using part by absorption, and synthesis is thin
Born of the same parents' substance, another part organic matter are decomposed metabolism, and release energy；
C. the formation of floccule body and coagulative precipitation stage：The thalline of oxidation stage synthesis flocculates to form floccule body, heavy by gravity
Shallow lake is separated from the water out, and water is made to be purified.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810380863.4A CN108529821A (en) | 2018-04-25 | 2018-04-25 | Sheepskin processes effluent cycle and utilizes processing system and treatment process |
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| CN201810380863.4A CN108529821A (en) | 2018-04-25 | 2018-04-25 | Sheepskin processes effluent cycle and utilizes processing system and treatment process |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202369478U (en) * | 2011-12-27 | 2012-08-08 | 隆富纸品加工（昆山）有限公司 | Sewage treatment system |
| CN102674639A (en) * | 2012-06-07 | 2012-09-19 | 故城县海青皮草有限公司 | Treatment process and treatment device of mink skin tanning waste water |
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN103342442A (en) * | 2013-07-18 | 2013-10-09 | 山东太平洋环保有限公司 | Integrated biotreatment system and method for PVC (poly vinyl chloride) industrial wastewater |
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2018
- 2018-04-25 CN CN201810380863.4A patent/CN108529821A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013010388A1 (en) * | 2011-07-21 | 2013-01-24 | 波鹰(厦门)科技有限公司 | Apparatus for treating landfill leachate and treatment method therefor |
| CN202369478U (en) * | 2011-12-27 | 2012-08-08 | 隆富纸品加工（昆山）有限公司 | Sewage treatment system |
| CN102674639A (en) * | 2012-06-07 | 2012-09-19 | 故城县海青皮草有限公司 | Treatment process and treatment device of mink skin tanning waste water |
| CN103342442A (en) * | 2013-07-18 | 2013-10-09 | 山东太平洋环保有限公司 | Integrated biotreatment system and method for PVC (poly vinyl chloride) industrial wastewater |
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