CN107188373A - A kind of fur manufacturing wastewater treatment equipment and method - Google Patents
A kind of fur manufacturing wastewater treatment equipment and method Download PDFInfo
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- CN107188373A CN107188373A CN201710518196.7A CN201710518196A CN107188373A CN 107188373 A CN107188373 A CN 107188373A CN 201710518196 A CN201710518196 A CN 201710518196A CN 107188373 A CN107188373 A CN 107188373A
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical 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
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
- C02F2103/24—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof from tanneries
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/02—Aerobic processes
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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
- C02F3/28—Anaerobic digestion processes
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of fur manufacturing wastewater treatment equipment, including grille well, dye sump, staining reaction pond, preliminary sedimentation tank, hydrolytic tank, oxidation pond, second pond, second order reaction pond, final deposition pool, drainage well, sludge concentration tank, chrome liquor sump, chrome liquor reaction tank and chromium mud thickener, the dyeing sump is connected to dyeing waste-water output end, chrome liquor sump is connected to chromate waste water output end, between dyeing waste-water output end and dyeing sump, grille well is equipped between chrome waste water output end and chrome liquor sump, the output end of the dyeing sump is connected with the input in staining reaction pond, the output end in staining reaction pond is connected to the input of preliminary sedimentation tank, the output end of chrome liquor sump is connected with the input of chrome liquor reaction tank.The present invention ensure that standard water discharge is discharged by the combination of a variety of handling process, also, present invention process is simple, easy to operate, processing is thorough, save the energy and with low cost.
Description
Technical field
The present invention relates to wastewater processing technology apparatus field, specifically a kind of fur manufacturing wastewater treatment equipment and method.
Background technology
Leather industry is made that major contribution for the development of national economy, but also environment is caused simultaneously extremely serious
Pollution.Process hides, most of processes of fur manufacturing are all completed in water, and the pollution to water body is particularly acute, and water consumption
It is huge.Increasingly serious with global water resources crisis, China environmental protection policy is more and more stricter, people's environmental consciousness by
Step enhancing, China's process hides, fur industries be faced with sternness environmental situation, environmental problem especially water pollution problems, into
It is the problem of process hides, fur industry sustainable development must take into consideration and solve, state for the bottleneck of restriction process hides, the development of fur manufacturing industry
Inside and outside scholar, expert have done substantial amounts of research for tannery wastewater treatment, and many ripe technologies have been successfully applied to reality
In the engineering of border, and achieve good treatment effect.Fur manufacturing waste water has similarity with leather-making waste water feature, but also has very
Many difference, indiscriminately imitate tannery wastewater treatment fur manufacturing waste water, and effect is often undesirable, should from fur manufacturing waste water the characteristics of, from
Reason present situation, the measure that there is problem, intend taking comprehensively are analyzed.
The source of fur waste water：Fur manufacturing be using Animal Skins such as sheepskin, rabbit, raw fox skin, standard mink skins as primary raw material,
Its chemically and physically treatment process there are ten multiple tracks to be carried out in water.Fur waste water main source has two aspects：On the one hand at this
Substantial amounts of industrial chemicals is used in a little processes, such as acid, alkali, salt, degreasing agent, tanning agent, dyestuff, the chemical materials used only have
50-70% enters in product, has quite a few to enter in water body；On the other hand, during fur manufacturing, raw material skin is a large amount of
Soluble protein and grease are entered in water body, and untreated direct discharge necessarily causes serious pollution to environment.With system
Leather is the same, and it is most of that fur manufacturing process is also classified into 3：Beam house, tanning process, dyeing and finishing workshop section.
Fur produces waste water characteristic：Wastewater flow rate is big, variation water quality is big, pollutant kind is more, complicated component, concentration high, color
Degree is high, intractability is big.From the point of view of fur wastewater source, the chemical materials species that raw material skin complicated component and processing are used is numerous
It is many, the complicated component of fur waste water is constituted, the following aspects is mainly manifested in：PH value is low, and fur manufacturing is most
It is to be carried out in the solution of slant acidity, for example pickling, softening, the pH value of chroming waste liquor are respectively 2,3,4 or so.Different workshop sections
The pH value of waste liquid is different.Accomplish the enterprise of finished product from rawhide and only do the Enterprise Integrated waste water of dyeing and finishing in acidity.Suspension：Hair
Concentration of suspended matter in skin waste water mainly has grease, floating hair, skin slag, crimson blood, silt, protein in 1000-2500mg/L
Catabolite and chromium hydroxide precipitation composition, can be removed it by chemical flocculation precipitation.
The waste water of fur manufacturing enterprise is to use waste water integrated treatment, seldom carries out heavily contaminated workshop section waste water and individually carries out
Processing, conventional treatment process mainly has following several：
Coagulation Method：Catabolite containing many greases, floating hair, skin slag, crimson blood, silt, protein in fur manufacturing waste water with
And chromium hydroxide precipitation material, they are mutually exclusive because carrying certain electric charge, are dispersed stably in waste water.When addition is carried
After the coagulant of opposite charges, the electric charge in waste water on colloidal substance, which is neutralized, to be condensed, and then passes through macromolecular flocculation aid
Bridging action, small micelle is gathered into big floc sedimentation, can be removed by external force.By coagulant of ferrous sulfate, polyacrylamide
Fur manufacturing waste water is handled for flocculation aid, under optimal coagulant consumption, pH, temperature and stirring condition, COD clearances are about
37%。
Bioanalysis：Bioanalysis is to utilize microorganism, mainly the metabolism of bacterium, can in oxidation, decomposition, absorption waste water
The insoluble organic matter of the organic matter of dissolubility and part, and it is converted into harmless stable material so that waste water is obtained only.It is raw
Thing method mainly includes hydrolysis acidification method, activated sludge process, oxidation ditch process and biological contact oxidation process.
Hydrolysis acidification method：Hydrolysis acidification method is a kind of between the aerobic method between anaerobism, mainly for the treatment of containing difficulty
The not high industrial wastewater of degradation of organic substances, biodegradability.It utilizes the acid fermentation stage during organic matter anaerobic digestion
Feature, the larger molecular organicses of some difficult degradations is converted into the small organic molecule being easily degraded by microorganisms, so as to improve useless
The biodegradability of water.Such as handled with hydrolysis acidification along fourth and butadiene-styrene rubber composite waste, as inlet COD loading 0.55kg/m3d
And during residence time 6.7h, water outlet BOD/COD values bring up to 0.56 by the 0.44 of before processing and do not detect styrene, it is ensured that after
Continuous aerobic process treatment effect.
Activated sludge process：Activated sludge process is to utilize the various microorganisms in activated sludge to have very strong absorption and oxidation point
The ability of organic matter is solved to handle a kind of method of organic wastewater.The medium-sized of fur manufacturing waste water is handled with traditional activated sludge process
Experiment shows that influent COD average quality concentration is 801mg/L, and after drum exposure processing, secondary clarifier effluent COD average removal rates are
59.2%。
Oxidation ditch process：Oxidation ditch is also known as " ring aeration tank ", " aerating system of endless ", and its aeration tank is in closing
The mixed liquor of irrigation canals and ditches type, sewage and activated sludge is constantly circulated wherein.It is used as a kind of activated sludge process work of innovation
Skill, oxidation ditch process is not required to set preliminary sedimentation tank and sludge digestion tank, but in terms of BOD is removed than traditional activated sludge process effect more
It is good, run also more reliable and more stable.Used after synthetic rubber waste water is mixed by a certain percentage with sanitary wastewater at oxidation ditch process
Reason, BOD clearances are up to 69%~93%.
Biological contact oxidation process：Biological contact oxidation process is the widely used one kind side of current industrial wastewater biological treatment
Method.Because its load is high, organic matter removal effect is good and turns into the follow-up aerobic treatment process of hydrolysis acidification technique.With biological
Oxidative treatment fur manufacturing waste water, 19~33 DEG C of water temperature of water inlet, pH be 6.6~7.3, gas-water ratio 15: 1, DO in pond >=
During 2mg/L and residence time 6.7h, water outlet COD and BOD average removal rate are respectively 83.7%, 89.6%.Various processing methods
The various processing methods for comparing fur manufacturing waste water compare.There is problem and developing direction fur manufacturing waste water is that a kind of processing is difficult
The larger waste water of degree, individually using physical-chemical process, chemical method or Biochemical method, effect is not ideal, and waste water is difficult to up to standard
Discharge.Recent study personnel attempt to use three kinds of Combination of Methods and obtain good result.With SBR- anthracites-quartz sand
Double-layer filter material filtering-active carbon absorption technology processing fur manufacturing waste water, as a result shows, influent COD is 1020mg/L or so
When, optimal water inlet phase 1h, reaction phase 4h, precipitation phase 2h, drainage period 0.5h, lay-up period 0h, aeration use non-Limited Aeration, water outlet
COD, turbidity, colourity are down to below 40mg/L, 0.75NTU and 0 respectively, can be back to production.With coagulant precipitation-hydrolysis acid
Change-catalytic oxidation-sand filtration PROCESS FOR TREATMENT fur manufacturing waste water, COD, BOD and SS clearance are respectively 95%, 95% and 70%
More than, its water quality parameter reaches GB8978-1996 composite wastewater first discharge standards, and reclaimed water can be realized on existing apparatus
Reuse.Therefore, can more it be improved using biology+physical-chemical process or chemical treatment efficiency.
According to narration above, it can be appreciated that although fur has produced work waste water treatment process till now
Comparative maturity, but on this field of fur production and processing wastewater treatment, many problems are still suffered from, only by single processing work
It is difficult to make water outlet qualified discharge that skill, which is, it is necessary to integrated to the progress of existing technique, using the method for kinds of processes Combined Treatment,
Ability qualified discharge, even turns waste into wealth, realizes the purpose of comprehensive utilization of resources.If having grasped above technology, fur life
A kind of real technique is simple, easy to operate, processing is thorough, save the energy and processing with low cost with regard to that can find for production processing waste water
Method.
The content of the invention
It is an object of the invention to provide a kind of fur manufacturing wastewater treatment equipment and method, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：
A kind of fur manufacturing wastewater treatment equipment, including grille well, dyeing sump, staining reaction pond, preliminary sedimentation tank, hydrolytic tank,
Oxidation pond, second pond, second order reaction pond, final deposition pool, drainage well, sludge concentration tank, chrome liquor sump, chrome liquor reaction tank and chromium mud
Concentration basin, the dyeing sump is connected to dyeing waste-water output end, and chrome liquor sump is connected to chromate waste water output end, in dye
Grille well, the dye are equipped between color waste water output end and dyeing sump, between chrome waste water output end and chrome liquor sump
The output end of color sump is connected with the input in staining reaction pond, and the output end in staining reaction pond is connected to the input of preliminary sedimentation tank
End, the output end of chrome liquor sump is connected with the input of chrome liquor reaction tank, and the chrome liquor reaction tank is exported provided with bottom chromium mud
End and upper liquid output end, chrome liquor reaction tank are connected to chromium mud thickener by bottom chromium mud output end, and chrome liquor reaction tank leads to
Cross the input that upper liquid output end is connected to preliminary sedimentation tank；The preliminary sedimentation tank is defeated provided with upper liquid output end and bottom sludge
Go out end, preliminary sedimentation tank bottom sludge output end is connected to the input of sludge concentration tank, and preliminary sedimentation tank upper liquid output end is connected to
The input of hydrolytic tank, the output end of hydrolytic tank is connected to the input of oxidation pond, and the output end of oxidation pond is connected to second pond
Input, the second pond be provided with upper liquid output end and bottom sludge output end, second pond upper liquid output end connect
Drainage well or second order reaction pond are connected to, the output end in second order reaction pond is connected to final deposition pool, and final deposition pool is exported provided with upper liquid
End and bottom sludge output end, final deposition pool upper liquid output end are connected to drainage well；The final deposition pool bottom sludge output end,
Second pond bottom sludge output end is connected to sludge concentration tank.
It is used as further scheme of the invention：Between the dyeing sump and staining reaction pond, chrome liquor sump and chromium
Elevator pump is equipped between liquid reaction tank.
It is used as further scheme of the invention：The staining reaction pond is connected with chemicals dosing plant, and dosing transposition includes dosing
Bucket and dosing pump, the input of dosing pump are connected to medicine-adding bin, and the output end of dosing pump extend into the inside in staining reaction pond.
It is used as further scheme of the invention：The oxidation pond is connected with apparatus of oxygen supply, and apparatus of oxygen supply includes blower fan, blower fan
Output end extend into the inside of oxidation pond.
The method that fur manufacturing wastewater treatment is carried out by above-mentioned fur manufacturing wastewater treatment equipment, comprises the following steps：
The first step, plant area's dyeing waste-water and chromate waste water are divided into coarse rack in grille well, grille well by diameter in waste water
The rubbish filterings such as miscellaneous hair, onal more than 2cm fall, then dyeing waste-water access dyeing sump, the waste water of fat containing chromium access chrome liquor
Sump；
Second step, dyeing sump and chrome liquor sump are collected into certain water and reached after liquid level, will be dyed and collected by elevator pump
Dyeing waste-water in well is promoted to staining reaction pond, and waste water is removed by adding medicament hybrid reaction precipitation to staining reaction pond
In most organic matter, while by elevator pump by the chrome liquor waste water lifting in chrome liquor sump to chrome liquor reaction tank, reaction
Chromate waste water supernatant can together import preliminary sedimentation tank, and chrome liquor reaction tank with the mixed dyeing waste-water of above-mentioned reaction after precipitation
In chromium mud be discharged into chromium mud thickener；
3rd step, preliminary sedimentation tank comprehensive wastewater after preliminary sedimentation supernatant enter hydrolytic tank, waste water passes through anaerobic hydrolysis, detests
Larger molecular organicses are degraded to small organic molecule by oxygen bacterium, are decomposed and absorbed by anaerobic bacteria, and small organic molecule is further
Decompose and absorb, be that next step catalytic oxidation is ready, meanwhile, the sludge in preliminary sedimentation tank is discharged into sludge concentration tank；
Waste water in 4th step, in the third step hydrolytic tank enters oxidation pond, further absorbs and divides by the aerobic bacteria of oxidation pond
Solution, the COD of waste water is further reduced, and treated water gravity flows into sedimentation in secondary sedimentation tank, and lower floor's sludge enters sludge concentration tank, on
Layer clear water such as handles up to standard, then is directly discharged into sewage network, such as water outlet can not be up to standard, then secondary clarifier effluent enters second order reaction pond
Further enter final deposition pool after reaction；
Water in 5th step, final deposition pool flows into drainage well qualified discharge.
Compared with prior art, the present invention ensure that standard water discharge is discharged by the combination of a variety of handling process, and
And, present invention process is simple, easy to operate, processing is thorough, save the energy and with low cost.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of fur manufacturing wastewater treatment equipment.
In figure：1- grille wells, 2- dyeing sump, 3- staining reactions pond, 4- preliminary sedimentation tanks, 5- hydrolytic tanks, 6- oxidation ponds, 7-
Second pond, 8- second order reactions pond, 9- final deposition pools, 10- drainage wells, 11- sludge concentration tanks, 12- chrome liquors sump, 13- chrome liquors are anti-
Ying Chi, 15- chromium mud thickener, 16- chemicals dosing plants, 17- apparatuss of oxygen supply.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Referring to Fig. 1, a kind of fur manufacturing wastewater treatment equipment, including grille well 1, dyeing sump 2, staining reaction pond
3rd, preliminary sedimentation tank 4, hydrolytic tank 5, oxidation pond 6, second pond 7, second order reaction pond 8, final deposition pool 9, drainage well 10, sludge concentration tank 11,
Chrome liquor sump 12, chrome liquor reaction tank 13 and chromium mud thickener 15, the dyeing sump 2 are connected to dyeing waste-water output end,
Chrome liquor sump 12 is connected to chromate waste water output end, between dyeing waste-water output end and dyeing sump 2, chrome waste water output
Grille well 1, the output end of the dyeing sump 2 and the input in staining reaction pond 3 are equipped between end and chrome liquor sump 12
End connection, the output end in staining reaction pond 3 is connected to the input of preliminary sedimentation tank 4, and the output end and chrome liquor of chrome liquor sump 12 are anti-
The input in pond 13 is answered to connect, the chrome liquor reaction tank 13 is provided with bottom chromium mud output end and upper liquid output end, chrome liquor is anti-
Pond 13 is answered to be connected to chromium mud thickener 15 by bottom chromium mud output end, chrome liquor reaction tank 13 is connected by upper liquid output end
To the input of preliminary sedimentation tank 4；The preliminary sedimentation tank 4 is provided with upper liquid output end and bottom sludge output end, and the bottom of preliminary sedimentation tank 4 is dirty
Mud output end is connected to the input of sludge concentration tank 11, and the upper liquid output end of preliminary sedimentation tank 4 is connected to the input of hydrolytic tank 5
End, the output end of hydrolytic tank 5 is connected to the input of oxidation pond 6, and the output end of oxidation pond 6 is connected to the input of second pond 7,
The second pond 7 is provided with upper liquid output end and bottom sludge output end, and the upper liquid output end of second pond 7 is connected to discharge
Well 10 or second order reaction pond 8, the output end in second order reaction pond 8 are connected to final deposition pool 9, and final deposition pool 9 is provided with upper liquid output end
With bottom sludge output end, the upper liquid output end of final deposition pool 9 is connected to drainage well 10；The bottom sludge output of final deposition pool 9
End, the bottom sludge output end of second pond 7 are connected to sludge concentration tank 11.
It is equipped between the dyeing sump 2 and staining reaction pond 3, between chrome liquor sump 12 and chrome liquor reaction tank 13
Elevator pump.
The staining reaction pond 3 is connected with chemicals dosing plant 16, and dosing transposition 16 includes medicine-adding bin and dosing pump, dosing pump
Input is connected to medicine-adding bin, and the output end of dosing pump extend into the inside in staining reaction pond.
The oxidation pond 6 is connected with apparatus of oxygen supply 17, and apparatus of oxygen supply 17 includes blower fan, and the output end of blower fan extend into oxidation
The inside in pond.
The method that fur manufacturing wastewater treatment is carried out by above-mentioned fur manufacturing wastewater treatment equipment, comprises the following steps：
The first step, plant area's dyeing waste-water and chromate waste water are divided into coarse rack in grille well, grille well by diameter in waste water
The rubbish filterings such as miscellaneous hair, onal more than 2cm fall, then dyeing waste-water access dyeing sump, the waste water of fat containing chromium access chrome liquor
Sump；
Second step, dyeing sump and chrome liquor sump are collected into certain water and reached after liquid level, will be dyed and collected by elevator pump
Dyeing waste-water in well is promoted to staining reaction pond, and waste water is removed by adding medicament hybrid reaction precipitation to staining reaction pond
In most organic matter, while by elevator pump by the chrome liquor waste water lifting in chrome liquor sump to chrome liquor reaction tank, reaction
Chromate waste water supernatant can together import preliminary sedimentation tank, and chrome liquor reaction tank with the mixed dyeing waste-water of above-mentioned reaction after precipitation
In chromium mud be discharged into chromium mud thickener；
3rd step, preliminary sedimentation tank comprehensive wastewater after preliminary sedimentation supernatant enter hydrolytic tank, waste water passes through anaerobic hydrolysis, detests
Larger molecular organicses are degraded to small organic molecule by oxygen bacterium, are decomposed and absorbed by anaerobic bacteria, and small organic molecule is further
Decompose and absorb, be that next step catalytic oxidation is ready, meanwhile, the sludge in preliminary sedimentation tank is discharged into sludge concentration tank；
Waste water in 4th step, in the third step hydrolytic tank enters oxidation pond, further absorbs and divides by the aerobic bacteria of oxidation pond
Solution, the COD of waste water is further reduced, and treated water gravity flows into sedimentation in secondary sedimentation tank, and lower floor's sludge enters sludge concentration tank, on
Layer clear water such as handles up to standard, then is directly discharged into sewage network, such as water outlet can not be up to standard, then secondary clarifier effluent enters second order reaction pond
Further enter final deposition pool after reaction；
Water in 5th step, final deposition pool flows into drainage well qualified discharge.
Production waste water is divided to two strands of waste water to include dyeing waste-water and chromate waste water respectively, and two bursts of waste water parallel connections are divided into and catchmented
Pond, is promoted to reaction tank dosing reaction, while chromate waste water is lifted by elevator pump after collecting-tank aeration mixing by dyeing waste-water
To reaction tank containing chromium and dosing reaction, supernatant can enter just heavy together with the above-mentioned dyeing waste-water reacted after reaction precipitation
Pond, after being precipitated by preliminary sedimentation tank, precipitating sludge is pumped into sludge concentration tank, and supernatant respectively enters hydrolytic tank, oxidation pond and two
Heavy pond, secondary clarifier effluent is discharged now if up to standard by drainage well, as can not be up to standard, then is reacted by second order reaction pond
Enter final deposition pool after precipitation, discharged finally by drainage well.It ensure that fur production and processing waste water is obtained fully in processing system
Effective reaction and processing.
The present invention ensure that standard water discharge is discharged by the combination of a variety of handling process, also, present invention process letter
Single, easy to operate, processing is thorough, save the energy and with low cost.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Make a variety of changes.
Claims (5)
1. a kind of fur manufacturing wastewater treatment equipment, it is characterised in that including grille well, dyeing sump, staining reaction pond, just
Heavy pond, hydrolytic tank, oxidation pond, second pond, second order reaction pond, final deposition pool, drainage well, sludge concentration tank, chrome liquor sump, chrome liquor
Reaction tank and chromium mud thickener, the dyeing sump are connected to dyeing waste-water output end, and chrome liquor sump is connected to useless containing chromium
Water output end, is equipped between dyeing waste-water output end and dyeing sump, between chrome waste water output end and chrome liquor sump
Grille well, the output end of the dyeing sump is connected with the input in staining reaction pond, the output end connection in staining reaction pond
To the input of preliminary sedimentation tank, the output end of chrome liquor sump is connected with the input of chrome liquor reaction tank, and the chrome liquor reaction tank is set
There are bottom chromium mud output end and upper liquid output end, chrome liquor reaction tank is connected to chromium mud by bottom chromium mud output end and concentrated
Pond, chrome liquor reaction tank is connected to the input of preliminary sedimentation tank by upper liquid output end；The preliminary sedimentation tank is defeated provided with upper liquid
Go out end and bottom sludge output end, preliminary sedimentation tank bottom sludge output end is connected to the input of sludge concentration tank, preliminary sedimentation tank top
Fluid output port is connected to the input of hydrolytic tank, and the output end of hydrolytic tank is connected to the input of oxidation pond, oxidation pond it is defeated
Go out the input that end is connected to second pond, the second pond is provided with upper liquid output end and bottom sludge output end, second pond
Upper liquid output end is connected to drainage well or second order reaction pond, and the output end in second order reaction pond is connected to final deposition pool, final deposition pool
Provided with upper liquid output end and bottom sludge output end, final deposition pool upper liquid output end is connected to drainage well；The end sinks
Pond bottom sludge output end, second pond bottom sludge output end are connected to sludge concentration tank.
2. fur manufacturing wastewater treatment equipment according to claim 1, it is characterised in that the dyeing sump and dyeing
Elevator pump is equipped between reaction tank, between chrome liquor sump and chrome liquor reaction tank.
3. fur manufacturing wastewater treatment equipment according to claim 1, it is characterised in that the staining reaction pond and dosing
Device is connected, and dosing transposition includes medicine-adding bin and dosing pump, and the input of dosing pump is connected to medicine-adding bin, the output end of dosing pump
It extend into the inside in staining reaction pond.
4. fur manufacturing wastewater treatment equipment according to claim 1, it is characterised in that the oxidation pond and apparatus of oxygen supply
Connection, apparatus of oxygen supply includes blower fan, and the output end of blower fan extend into the inside of oxidation pond.
5. a kind of fur manufacturing wastewater treatment equipment as described in claim 1-2 is any carries out the side of fur manufacturing wastewater treatment
Method, it is characterised in that comprise the following steps：
The first step, plant area's dyeing waste-water and chromate waste water are divided into coarse rack in grille well, grille well by diameter in waste water
The rubbish filterings such as miscellaneous hair, onal more than 2cm fall, then dyeing waste-water access dyeing sump, the waste water of fat containing chromium access chrome liquor
Sump；
Second step, dyeing sump and chrome liquor sump are collected into certain water and reached after liquid level, will be dyed and collected by elevator pump
Dyeing waste-water in well is promoted to staining reaction pond, and waste water is removed by adding medicament hybrid reaction precipitation to staining reaction pond
In most organic matter, while by elevator pump by the chrome liquor waste water lifting in chrome liquor sump to chrome liquor reaction tank, reaction
Chromate waste water supernatant can together import preliminary sedimentation tank, and chrome liquor reaction tank with the mixed dyeing waste-water of above-mentioned reaction after precipitation
In chromium mud be discharged into chromium mud thickener；
3rd step, preliminary sedimentation tank comprehensive wastewater after preliminary sedimentation supernatant enter hydrolytic tank, waste water passes through anaerobic hydrolysis, detests
Larger molecular organicses are degraded to small organic molecule by oxygen bacterium, are decomposed and absorbed by anaerobic bacteria, and small organic molecule is further
Decompose and absorb, be that next step catalytic oxidation is ready, meanwhile, the sludge in preliminary sedimentation tank is discharged into sludge concentration tank；
Waste water in 4th step, in the third step hydrolytic tank enters oxidation pond, further absorbs and divides by the aerobic bacteria of oxidation pond
Solution, the COD of waste water is further reduced, and treated water gravity flows into sedimentation in secondary sedimentation tank, and lower floor's sludge enters sludge concentration tank, on
Layer clear water such as handles up to standard, then is directly discharged into sewage network, such as water outlet can not be up to standard, then secondary clarifier effluent enters second order reaction pond
Further enter final deposition pool after reaction；
Water in 5th step, final deposition pool flows into drainage well qualified discharge.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110183034A (en) * | 2019-05-06 | 2019-08-30 | 中运建设控股有限公司 | The recovery method of fur manufacturing waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110183034A (en) * | 2019-05-06 | 2019-08-30 | 中运建设控股有限公司 | The recovery method of fur manufacturing waste liquid |
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Application publication date: 20170922 |