CN107235599A - The method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment - Google Patents
The method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment Download PDFInfo
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- CN107235599A CN107235599A CN201710444998.8A CN201710444998A CN107235599A CN 107235599 A CN107235599 A CN 107235599A CN 201710444998 A CN201710444998 A CN 201710444998A CN 107235599 A CN107235599 A CN 107235599A
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- strong oxdiative
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to the method for producing waste water with the thin miscellaneous skin of circulation biochemical treatment based on Strong oxdiative, belong to technical field of sewage, thin miscellaneous skin is produced wastewater collection and squeezed into by this method carries out water quality adjustment and runoff investigation in regulating reservoir, water quality adjustment includes oil, SS, pH and COD value regulation, regulation is stable to each index, runoff investigation duration 10H, waste water after regulation squeezes into progress multidimensional Strong oxdiative in multidimensional Strong oxdiative equipment, heavy metal ion in water and the organic matter in direct degrading waste water are eliminated by electrode adsorption, including protein, grease, skin slag, scurf etc., the water quality fluctuation that these organic matter breed bacterias can be avoided to bring, stable aquatic environment is provided for subsequent treatment, flocculation sediment separation is carried out after Strong oxdiative, waste water is then subjected to level Four circulation biochemical, biochemistry is carried out using sludge activation method, precipitation separation is carried out after biochemical reaction, eventually pass and qualified processing water is obtained after flocculation sediment and adsorption filtration.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment
The method for producing waste water.
Background technology
Thin miscellaneous skin is that hide is smaller, yield is relatively low and the fur product of main application, including standard mink skin, fox are used as using hair side
Leopard cat skin, beaver and raw weasel skin etc., it can produce a large amount of waste water, the complicated component of waste water, water quality and quantity ripple in manufacturing process
Dynamic amplitude is big, and production waste water is essentially from processes such as degreasing, softening, tanning and dyeing process, and Pollutants in Wastewater is mainly contained
Organic matter and the suspensions such as protein, grease, skin slag, scurf, while the also nothing such as sulfide, chromium ion, sodium chloride, sulfate
Machine thing, existing handling process is mainly using elimination and the colourity for adding flocculant and decolorising agent progress organic matter and inorganic matter
Reduction, or carry out wastewater treatment using precipitation separation is carried out after the metabolism of common aerobic bacteria, but be due to thin miscellaneous skin
Middle complicated component, existing handling process all can only make a part of pollutant load up to standard, can not make various pollutants in waste water
Content reaches discharge standard, and it all exists on environment in one aspect after discharging influences, such as heavy metal ion in waste water,
Sulfide, NH3-N etc..
The content of the invention
The present invention makes up the deficiencies of the prior art there is provided one kind based on the thin miscellaneous skin life of Strong oxdiative and circulation biochemical treatment
The method for producing waste water, this method avoids the water quality of thin miscellaneous skin production waste water uncertain and fluctuation by multidimensional Strong oxdiative
Influence, then circulate biochemistry to improve water quality by flocculation sediment and level Four again, finally give qualified processing water and circulate
Reuse.
The present invention concrete technical scheme be：
The method for producing waste water based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, key point is that described method includes
Following steps：
A, thin miscellaneous skin is produced wastewater collection and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir；
B, the waste water after regulation is squeezed into progress one-level multidimensional Strong oxdiative, multidimensional Strong oxdiative equipment in multidimensional Strong oxdiative equipment
To be filled with the two-dimentional electrolytic cell of granular electrode material between electrode, power frequency is 6-8KHz, and the duration is 25-35min, with
Add coagulant, flocculation aid in waste water after backward multidimensional Strong oxdiative, coagulant is PAC, and addition is the one thousandth of wastewater flow rate
To 3/1000ths, flocculation aid is PAM, and addition is 4th/20000th to ten thousand/10000ths of wastewater flow rate, flocculation sediment 2.5-3.5H；
Waste water after C, flocculation sediment, which is squeezed into four biochemical systems being sequentially connected, carries out level Four circulation biochemistry, department of biochemistry
System includes aeration tank, sedimentation basin and activating tank, and waste water, which is squeezed into the sludge produced behind aeration tank and squeezed into activating tank, to be activated, work
Sludge after change is returned in aeration tank, aeration tank mesophytization time 7H, sludge reflux amount 50-80%, sludge concentration 6000mg/L,
Waste water after aeration is finished is squeezed into sedimentation basin and precipitated, precipitation duration 3.5-4H, and the sludge after precipitation squeezes into activation
Activated, be then returned in aeration tank in pond, sludge reflux amount 50-80%, sludge concentration 6000mg/L；
D, advanced treating, plus coagulant and flocculation aid are carried out to the waste water after precipitation separation in sedimentation basin, coagulant is
PAC, addition is 1/1000th 2/5000ths to thousand of wastewater flow rate, and flocculation aid is PAM, addition for wastewater flow rate ten thousand/
0. 2/50000ths to ten thousand, coagulating sedimentation duration 2.5-3.5H；Comprehensive adsorption filtration 10-20min, it is qualified to finally give
Handle water.
In described step A, water quality adjustment includes oil, the regulation of SS, pH and COD content value, regulation to oil, SS, pH
And COD content value stabilizations.
In described step B, coagulant addition is 2/1000ths of wastewater flow rate, and flocculation aid addition is the ten thousand of wastewater flow rate
/ tri-, flocculation sediment 3H.
In described step D, coagulant addition is the one thousandth of wastewater flow rate, and flocculation aid addition is the ten thousand of wastewater flow rate
/ mono-, coagulating sedimentation duration 3H, comprehensive adsorption filtration 15min.
The beneficial effects of the invention are as follows：The present invention is eliminated by the organic matter in multidimensional Strong oxdiative degrading waste water and absorption
Heavy metal chromium ion in waste water, the process can avoid the organic matters such as protein, grease, skin slag, scurf from being grown in water respectively
Bacterium is planted, the bacterium of growth can produce on waste water quality destroys growth carefully after continual influence, above-mentioned organic matter degradation
The growing environment of bacterium, the water quality of waste water is no longer fluctuated widely, and stable aquatic environment is provided for wastewater treatment, is reduced
Carbon dioxide, water and relatively simple compound are generated after the uncertainty of wastewater treatment, organic matter degradation, then by waste water
In original inorganic matter and organic matter decompose after compound carry out flocculation sediment separation, by aerobic during level Four circulation is biochemical
Bacterium metabolism squeezes into department of biochemistry again to consume the sludge produced in waste water in remaining organic matter, consumption process through overactivation
In system, sludge quantity can be reduced to greatest extent on the basis of biochemical treatment is not influenceed.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of method in the present invention.
Embodiment
The present invention relates to the method for producing waste water based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, the multidimensional in this method
Strong oxdiative process is at least one of electro-catalysis, electric flocculation or electric Fenton, and the biochemical number of times of circulation is four times, and circulation is biochemical
The sludge that system is included in aeration tank, sedimentation basin and activating tank, aeration tank and sedimentation basin is squeezed into progress activation in activating tank and laid equal stress on
New squeeze into carries out biochemical reaction in aeration tank, the regulation processing including regulating reservoir, one successively based on above-mentioned 2 points of processing methods
Each in level multidimensional Strong oxdiative, flocculation sediment, biochemical level Four circulation, precipitation, flocculation sediment and comprehensive adsorption filtration, method is walked
Rapid state modulator and detail is illustrated by specific embodiment.
Specific embodiment, as shown in figure 1, the method for the thin miscellaneous skin production waste water of processing comprises the following steps：
A, thin miscellaneous skin is produced wastewater collection and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir, runoff investigation
Duration is 10H, and the volume of regulating reservoir is carried out according to the treating capacity of the residence time, the actual yield of waste water and waste water
Design, the treating capacity of thin miscellaneous skin production waste water is 300-1200m3/ d, water quality adjustment includes oil, SS, pH and COD content value
Regulation, regulation to These parameters reaches stable state；
B, the waste water after regulation is squeezed into progress one-level multidimensional Strong oxdiative in multidimensional Strong oxdiative equipment, power frequency is 6-
8KHz, the duration is 30min, equipment used in multidimensional Strong oxdiative be loaded between the electrode of conventional two-dimensional electrolytic cell it is granular
Working electrode, granular working electrode is diameter 5-10mm graphite particle, and multidimensional electric machine structure is formed after filling, anti-by anode
Direct degradation of organic substances is answered, or Strong oxdiative particle is produced by anode reaction, such as hydroxyl, oxygen, hydrogen peroxide, hydroxyl are certainly
By base, the strong oxidizer of the class of ozone one, these strong oxidizers with the organic pollution in waste water without selectively quickly occurring chain type
Reaction carries out oxidative degradation, is degraded to carbon dioxide and water, it is more thorough that this biodegrading process decomposes organic matter, and advantage is：
1st, these granular working electrodes being filled between both positive and negative polarity improve mass transfer in liquid phase efficiency and current efficiency；2nd, electro transfer
Carried out between electrode and waste water component, the hydroxyl radical free radical that oxidation reaction is produced by system oneself is carried out, it is not necessary to added
Decoction, non-secondary pollution；3rd, water inlet pollutant concentration is unrestricted, and COD concentration may be up to thousands of mg/L, decolourizes, detoxification effect shows
Write, percent of decolourization is up to more than 50-80%, the course of reaction of organic pollutant degradation processing is rapid, and retention time of sewage is short, it is only necessary to
30-60min, required equipment volume is small；4th, ammonia nitrogen, total phosphorus and the colourity in waste water can be efficiently removed simultaneously；5th, reaction condition temperature
With carried out under normal temperature and pressure, operation is flexible, can adjust reaction condition at any time by changing voltage, electric current, controllability is good；6th, account for
Ground area is small, and the completion time of project is short, and operating cost is low；7th, non-stripping property DSA anodes, electrodeless burn into problem of passivation, with height
Effect, long-life feature；
Organic matter and absorption in multidimensional Strong oxdiative degrading waste water eliminate the heavy metal chromium ion in waste water, the process energy
The organic matters such as protein, grease, skin slag, scurf are enough avoided to grow various bacteriums in water, the bacterium of growth can be to waste water quality
The growing environment that breed bacteria is destroyed after continual influence, above-mentioned organic matter degradation is produced, the water quality of waste water is no longer sent out
Life is fluctuated widely, and stable aquatic environment is provided for wastewater treatment, the uncertainty of wastewater treatment is reduced, then to strong oxygen
In waste water after change processing plus coagulant, flocculation aid, coagulant is PAC, addition be waste water weight in the step thousand/
Two, flocculation aid is PAM, and addition is 3/10000ths of waste water weight in the step, and flocculation sediment continues 3H, will be original in waste water
Inorganic matter and organic matter decompose after compound carry out flocculation sediment separation；
Waste water after C, flocculation sediment, which is squeezed into four biochemical systems being sequentially connected, carries out level Four circulation biochemistry, department of biochemistry
System includes aeration tank, sedimentation basin and activating tank, and aeration tank carries out decomposition and consumption of the aerobic bacteria to organic matter under aeration condition, with
The sludge in sedimentation basin in progress precipitation separation, aeration tank and sedimentation basin, which is squeezed into, afterwards carries out activation process in activating tank, living
Sludge after change processing is returned again participates in biochemical reaction in aeration tank, the aeration tank mesophytization time is 7H, sludge reflux amount 50-
Precipitation duration 3.5-4H in 80%, sludge concentration 6000mg/L, sedimentation basin, sludge reflux amount 50-80%, sludge concentration
6000mg/L；
D, advanced treating, plus coagulant and flocculation aid are carried out to the waste water after precipitation separation in sedimentation basin, coagulant is
PAC, addition is the one thousandth of waste water weight in the step, and flocculation aid is PAM, and addition is waste water weight in the step
A ten thousandth, the coagulating sedimentation duration is 3H, and then comprehensive adsorption filtration 15min, finally gives qualified processing water.
Claims (4)
1. the method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, it is characterised in that described method includes
Following steps：
A, thin miscellaneous skin is produced wastewater collection and squeezed into water quality adjustment and runoff investigation are carried out in regulating reservoir；
B, the waste water after regulation is squeezed into progress one-level multidimensional Strong oxdiative in multidimensional Strong oxdiative equipment, multidimensional Strong oxdiative equipment is electricity
Interpolar is filled with the two-dimentional electrolytic cell of granular electrode material, and power frequency is 6-8KHz, and the duration is 25-35min, then to
In waste water after multidimensional Strong oxdiative plus coagulant, flocculation aid, coagulant is PAC, addition for wastewater flow rate one thousandth to thousand
/ tri-, flocculation aid is PAM, and addition is 4th/20000th to ten thousand/10000ths of wastewater flow rate, flocculation sediment 2.5-3.5H；
Waste water after C, flocculation sediment, which is squeezed into four biochemical systems being sequentially connected, carries out level Four circulation biochemistry, biochemical system bag
Include aeration tank, sedimentation basin and activating tank, waste water, which is squeezed into the sludge produced behind aeration tank and squeezed into activating tank, to be activated, after activation
Sludge return aeration tank in, aeration tank mesophytization time 7H, sludge reflux amount 50-80%, sludge concentration 6000mg/L, aeration
Waste water after finishing, which is squeezed into sedimentation basin, to be precipitated, and is precipitated the sludge after duration 3.5-4H, precipitation and is squeezed into activating tank
Activated, be then returned in aeration tank, sludge reflux amount 50-80%, sludge concentration 6000mg/L；
D, carry out advanced treating to the waste water after precipitation separation in sedimentation basin, plus coagulant and flocculation aid, coagulant is PAC, is added
Dosage is 1/1000th 2/5000ths to thousand of wastewater flow rate, and flocculation aid is PAM, and addition is 5th/10000ths of wastewater flow rate
To 2/10000ths, coagulating sedimentation duration 2.5-3.5H；Comprehensive adsorption filtration 10-20min, finally gives qualified processing
Water.
2. the method according to claim 1 that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, its feature
Be, in described step A, water quality adjustment include oil, the regulation of SS, pH and COD content value, adjust to oil, SS, pH and
COD content value stabilizations.
3. the method according to claim 1 that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, its feature
Be, in described step B, coagulant addition be wastewater flow rate 2/1000ths, flocculation aid addition be wastewater flow rate very much
Three, flocculation sediment 3H.
4. the method according to claim 1 that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of circulation biochemical treatment, its feature
Be, in described step D, coagulant addition be wastewater flow rate one thousandth, flocculation aid addition be wastewater flow rate very much
One of, coagulating sedimentation duration 3H, comprehensive adsorption filtration 15min.
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| CN201710444998.8A CN107235599A (en) | 2017-06-12 | 2017-06-12 | The method that waste water is produced based on Strong oxdiative and the thin miscellaneous skin of multiple stage circulation biochemical treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112209506A (en) * | 2020-10-22 | 2021-01-12 | 江苏美能膜材料科技有限公司 | High-concentration dimethylacetamide wastewater treatment device and treatment method |
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2017
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| EP2230211A1 (en) * | 2009-03-09 | 2010-09-22 | F-Tec Systems SA | Installation and method for the pre-processing of raw water |
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| CN104310696A (en) * | 2014-05-09 | 2015-01-28 | 中国科学院生态环境研究中心 | Method for treating and recycling leather wastewater by electro-adsorption |
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