CN105060586B - A kind of coating waste-water processing unit - Google Patents
A kind of coating waste-water processing unit Download PDFInfo
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- CN105060586B CN105060586B CN201510464286.3A CN201510464286A CN105060586B CN 105060586 B CN105060586 B CN 105060586B CN 201510464286 A CN201510464286 A CN 201510464286A CN 105060586 B CN105060586 B CN 105060586B
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Abstract
Enter raw water the present invention relates to a kind of coating waste-water processing unit, in regulating reservoir, the water in regulating reservoir is entered by elevator pump to be entered degassing after fore filter filtering and be carbonized in linkage；Carbonization membrane module is provided with degassing carbonization linkage, is carbonized on membrane module and activated carbon exhaust gas processing device is connected with by vavuum pump；The outlet of carbonization membrane module is connected to dosing pond a, and the waste water in a of dosing pond can enter micro-electrolysis device by pump a；The delivery port of micro-electrolysis device is connected to dosing pond b, and the waste water in the b of dosing pond enters coiled pipe by pump b and carries out Fenton's reaction；The delivery port of coiled pipe is connected to dosing pond c, and dosing pond c outlet is connected to coagulative precipitation tank；The clear liquid on coagulative precipitation tank top enters photocatalysis apparatus by pump c, and the delivery port of the photocatalysis apparatus is connected to intermediate water tank, and the water of intermediate water tank enters intensive filtration device by pump d.Present invention reduces the COD of coating waste-water, device flow is simple, service life length.
Description
Technical field：
The present invention relates to wastewater treatment equipment field, more particularly to a kind of coating waste-water processing unit.
Background technology：
There are toluene, dimethylbenzene, dicyclopentadiene, phthalic anhydride, cis-butenedioic anhydride, fourth in the coating waste-water main component of manufacturing enterprise's discharge
Enedioic acid (suitable, anti-), dimethoxym ethane, acetal, ethanol, dimethyl ether, butyl ester, hypophosphorous acid etc., these.Often containing phenols, benzene class and
The poisonous and harmful substances such as heavy metal (surface treatment), the COD=4000-5000mg/L of coating waste-water evaporation production water.PH=4-
12.5.Phenol is a kind of chemical auxocarcinogen, if the phenol wastewater of high concentration is discharged into waters can make aquatic organism by
To infringement.Also contain lead and chromium in the pigment that coatings industry uses at present.Lead is current widest pollution element, and it is to hematopoiesis
The damaging effect of device relates generally to brain, cerebellum and spinal cord and peripheral nerve.Chromium compounds toxicity is very big, mainly by drinking
Water and food enter human body.Therefore harm of the coating waste-water to waters is very serious.Organism kinds in waste water are more, and composition is multiple
Miscellaneous, COD contents are high, and have certain toxicity, are the characteristics of such waste water：(1) the waste water yield of unit product is few, but dirty
It is sufficiently complex to contaminate thing composition；(2) containing a variety of macromolecular organic compounds that are virose, being difficult to biochemical degradation, and it is dense；
(3) solid contents is also very high in waste water.The processing method of paint waste water has physico-chemical process and biochemical process, and materialization partition method mainly has
Air supporting, coagulating sedimentation, absorption, micro-filtration, ultrafiltration, reverse osmosis membrane separation etc., biochemical treatment process mainly have Aerobic biological process, anaerobism
Biological treatment etc., these techniques are combined to form many paint wastewater treatment equipments.But it is tediously long technological process to be present, equipment
It can not play one's part to the full, processing cost is high, and qualified discharge stability is poor, and treatment effect has much room for improvement.
The content of the invention：
The purpose of the present invention is in view of the deficiencies of the prior art, there is provided a kind of coating waste-water processing unit, the present apparatus
The COD value of coating waste-water is reduced, technological process is simple, and service life length, investment cost is few, convenient operating maintenance, runs into
This is low, and treatment effect is stable.
The technology solution of the present invention is as follows：
A kind of coating waste-water processing unit, it includes regulating reservoir, enters raw water in regulating reservoir；Water in the regulating reservoir leads to
Cross after elevator pump filters into fore filter and enter in degassing carbonization linkage；The bottom of the degassing carbonization linkage
It is connected with aerator；Carbonization membrane module is provided with the degassing carbonization linkage, is connected on the membrane module that is carbonized by vavuum pump
Activated carbon exhaust gas processing device is connected to, the waste water through the membrane module processing that is carbonized dissolves solvable, compatibility volatile organic matter
Degree is reduced and volatilized, and activated carbon vent gas treatment is entered after volatile organic matter is by Strong oxdiative under the vacuum suction of vavuum pump and is filled
Put；The outlet of the carbonization membrane module is connected to dosing pond a, adds dilute sulfuric acid to adjust the pH value in it in a of dosing pond；It is described to add
Waste water in a of medicine pond can enter micro-electrolysis device by pump a, and micro-electrolysis device links together with described aerator；
The delivery port of the micro-electrolysis device is connected to dosing pond b, and after the b dosings of dosing pond, the waste water in the b of dosing pond is entered by pump b
Coiled pipe carries out Fenton's reaction；The delivery port of the coiled pipe is connected to dosing pond c, and after the c dosings of dosing pond, dosing pond c's goes out
Mouth is connected to coagulative precipitation tank；The clear liquid on the coagulative precipitation tank top enters photocatalysis apparatus, the photocatalysis dress by pump c
The delivery port put is connected to intermediate water tank, and the water of intermediate water tank enters intensive filtration device by pump d, and intensive filtration device reduces waste water
COD value, the discharge of final waste water.
Preferably, the raw water enters regulating reservoir by pump, its outle water rate is 3.5t/h, and the volume of regulating reservoir is 20
~30m3, device starts normal operation after reaching certain water in regulating reservoir.
Preferably, the carbonization membrane module is composed in series by 30 hollow fiber tube membranes, set in hollow fiber tube membrane
There are air inlet, gas outlet, water inlet and delivery port, 30 hollow fiber tube membranes, which employ center water-locator, makes periosteum in carbonized film
Component internal filling is uniform, and the phase-contact surface of gas and water two is big, and degassing efficiency is high.
Preferably, the degassing, which is carbonized on the pipeline between linkage and vavuum pump, is provided with pressure vacuum gauge.
Preferably, the photocatalysis apparatus is externally provided with UV-device, photocatalysis apparatus is with high photosensitive titanium dioxide film
For semiconductor titanium deoxide catalyst, under the irradiation of the ultraviolet light wave of specific wavelength, and complex compound is added in photocatalysis apparatus,
The ability of ultraviolet is enhanced after addition complex compound.
Preferably, the intensive filtration device uses filter of the PTFE biaxial tensiones hydrophilic film for filter core.
The beneficial effects of the present invention are：
Present invention reduces the COD value of coating waste-water, COD value is down to below 700mg/L, and carbonization membrane module of the invention is
It is composed in series by 30 hollow fiber tube membranes, hollow fiber tube membrane has the characteristics that film contact area is big, film wire is tough.With the country
Other like products compare, and have following several big advantages：1st, hollow fiber tube membrane uses biaxial tension technology, can accurately control
The percent opening of membrane tube, it is adapted to different process purposes；2nd, hollow fiber tube membrane passes through silicic acid anhydride, ensures " to cross gas for a long time
But water "；Periosteum after silicic acid anhydride, the center water-locator of employing make periosteum be filled evenly in component internal, gas and water
Two phase-contact surfaces are bigger, so as to which degassing efficiency is higher.
The micro-electrolysis device of the present invention has the following advantages that：(1) reaction rate is fast, and commonly industrial wastewater only needs half an hour
To a few hours；(2) it is wide to act on organic pollution materials scope, such as：Difficulty containing even fluorine, carbon double bond, nitro, halo based structures is except drop
Solution organic substance etc. has good degradation effect；(3) technological process is simple, service life is long, investment cost is few, Operation and Maintenance
Conveniently, operating cost is low, treatment effect is stable.A small amount of micro-electrolysis reaction agent is only consumed in processing procedure.Fine electrolyser only needs
Periodically addition is added and direct plungeed into without carrying out activation without changing.(4) waste water can be in water after microelectrolysis processing
The ferrous iron or iron ion of ecosystem are formed, there is coagulation more more preferable than common coagulants, without adding the coagulant such as molysite again,
COD clearances are high, and will not cause secondary pollution to water；(5) there is good coagulation effect, colourity, COD clearances are high,
Same amount can largely improve the biodegradability of waste water.
The present invention waste water COD be reduced to it is up to standard after, into intensive filtration device.Intensive filtration device uses in this device
PTFE biaxial tensiones hydrophilic film is the filter of filter core, can effectively remove colourity, wait the organic matter of denier.Traditional ultrafiltration
Film can not remove micro quantity organic pollutant and a small amount of, micro metal ion, and the effect of the micelle of surfactant molecule and
The properties such as the solubilization of micelle can make trace contaminant in water be gathered in Surfactants surface and be realized by filter membrane
Separation.It can be reduced to waste water COD lower, ensure the stability of device.
Brief description of the drawings：
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the present invention.
Embodiment：
Embodiment, see accompanying drawing 1, a kind of coating waste-water processing unit, it includes regulating reservoir 1, enters raw water in regulating reservoir；Institute
State and enter after the water in regulating reservoir is filtered by elevator pump 2 into fore filter 3 in degassing carbonization linkage 4；It is described de-
The bottom of gas carbon linkage is connected with aerator 5；Carbonization membrane module, carbonization are provided with the degassing carbonization linkage
Activated carbon exhaust gas processing device 7 is connected with by vavuum pump 6 on membrane module, the waste water through the membrane module processing that is carbonized makes solvable, mixed
The volatile organic matter solubility of dissolubility is reduced and volatilized, and volatile organic matter passes through Strong oxdiative under the vacuum suction of vavuum pump
Enter activated carbon exhaust gas processing device afterwards；The outlet of the carbonization membrane module is connected to dosing pond a8, adds dilute sulfuric acid in a of dosing pond
To adjust the pH value in it；Waste water in the dosing pond a can enter micro-electrolysis device 10 by pump a9, and micro-electrolysis device with
Described aerator links together；The delivery port of the micro-electrolysis device is connected to dosing pond b11, after the b dosings of dosing pond,
Waste water in the b of dosing pond enters coiled pipe 13 by pump b12 and carries out Fenton's reaction；The delivery port of the coiled pipe is connected to dosing
Pond c14, after the c dosings of dosing pond, dosing pond c outlet is connected to coagulative precipitation tank 15；The clear liquid on the coagulative precipitation tank top
Photocatalysis apparatus 17 is entered by pump c16, the delivery port of the photocatalysis apparatus is connected to intermediate water tank 18, the water of intermediate water tank
Intensive filtration device 20 is entered by pump d19, intensive filtration device reduces the COD value of waste water, final waste water discharge.
The raw water enters regulating reservoir by pump, and its outle water rate is 3.5t/h, and the volume of regulating reservoir is 20~30m3, adjust
Device starts normal operation after reaching certain water in section pond.
It is described carbonization membrane module be to be composed in series by 30 hollow fiber tube membranes, hollow fiber tube membrane be provided with air inlet,
Gas outlet, water inlet and delivery port, 30 hollow fiber tube membranes, which employ center water-locator, makes periosteum in carbonized film component internal
Filling is uniform, and the phase-contact surface of gas and water two is big, and degassing efficiency is high.
Pressure vacuum gauge is installed on pipeline between the degassing carbonization linkage and vavuum pump.
The photocatalysis apparatus is externally provided with UV-device, and photocatalysis apparatus is using high photosensitive titanium dioxide film as semiconductor two
Titanium oxide catalyst, under the irradiation of the ultraviolet light wave of specific wavelength, and complex compound is added in photocatalysis apparatus, add complex compound
The ability of ultraviolet is enhanced afterwards.
The intensive filtration device uses filter of the PTFE biaxial tensiones hydrophilic film for filter core.
The technical process of the present invention is as follows：
(1) raw water enters regulating reservoir：Raw water enters regulating reservoir 1 by pump, and its outle water rate is 3.5t/h, the body of regulating reservoir
Product is 24m3, device starts normal operation after reaching certain water in regulating reservoir.
(2) regulating reservoir reclaimed water is entered after fore filter 3 filters by elevator pump 2 enters degassing carbonization linkage 4:It is de-
Carbonization membrane module is provided with gas carbon linkage, the carbonization membrane module is composed in series by 30 hollow fiber tube membranes, in
Hollow fiber periosteum is provided with air inlet, gas outlet, water inlet and delivery port, and periosteum uses silicic acid anhydride, ensures prolonged
Cross cannot restrain one's anger water；30 hollow fiber tube membranes, which employ center water-locator, makes periosteum uniform in the filling of carbonized film component internal, gas,
The phase-contact surface of water two is big, and degassing efficiency is high.The biaxial tension PTFE microporous hydrophobic membranes that waste water passes through in carbonization membrane module, while
Under aerator 5 acts on, producing high density aeration makes solvable, the miscible volatile organic matter in waste water lose VLE,
Waste water is carbonized using the carbon dioxide in air simultaneously, reduce solvable, compatibility volatile organic matter solubility
And volatilize, activated carbon exhaust gas processing device 7 is entered after volatile organic matter is by Strong oxdiative under the vacuum suction of vavuum pump 6.
(3) micro-electrolysis device:Carbonization membrane module water outlet enters micro-electrolysis device after the a8 dosings of dosing pond by pump a9
10 pairs of high concentrated organic wastewaters are handled, and dosing is dilute sulfuric acid in a of dosing pond, and chemical feeding quantity automatically adjusts according to pH value, makes pH
For 2~3；The micro-electrolysis material used in the micro-electrolysis device is 3.8V iron-carbon filling material, while micro-electrolysis device is described
Under aerator 5 acts on, 3.8V iron-carbon filling materials can efficiently remove Coal Gas Washing Cycling Water organic matter while can also avoid running
In filler passivation or hardened phenomenon.Micro-electrolysis device needs periodic cleaning, and cleaning way is cleaned using ultrasonic wave.
It is in the case of cold to micro-electrolysis device, is produced using the micro-electrolysis material being filled in waste water itself
1.2V potential differences carry out electrolysis processing to waste water, to reach the purpose of degradable organic pollutant.After micro-electrolysis device water flowing, if
Countless microcell devices can be formed for interior, an electric field is formed in its action space.The caused nascent state in processing procedure
[H]、Fe2+Etc. redox reaction can occur with many components in waste water, than if coloring matter in damaged colored waste water
Chromophoric group or auxochrome group, or even chain rupture has the function that degradation and decolorization；The Fe of generation2+It is further oxidized to Fe3+, it
Hydrate there is stronger adsorption-flocculation activity, ferrous hydroxide and iron hydroxide are generated particularly after adjusting PH with base value is added
Colloid flocculant, their adsorption capacity are significantly larger than the ferric hydroxide colloid that general medicament hydrolyzes to obtain, and can largely adsorb water
In the molecule that disperses, metallic and organic macromolecule.Its operation principle is based on electrochemistry, redox, physical absorption
And the collective effect of flocculation sediment is handled waste water.
Traditionally micro-electrolysis material is generally iron filings and charcoal used by weak electrolysis mechanism, wants acid adding alkali to live using preceding
Change, be easy to be passivated during use it is hardened, and because iron with charcoal is physical contact, between be readily formed separation layer make it is micro-
Electrolysis can not continue and ineffective, and which results in micro-electrolysis material is replaced as frequently as, not only the big cost of workload is high also
Influence the treatment effect and efficiency of waste water.Also wastewater treatment is caused to need to grow very much in addition, traditional micro-electrolysis material surface area is too small
Time, add a ton water cost of investment, this has all had a strong impact on the utilization and popularization of weak electrolysis mechanism.The present invention's is efficient micro-
Electrolysis unit can efficiently be removed Coal Gas Washing Cycling Water organic matter while can also be avoided running using special 3.8V iron-carbon filling materials
Phenomena such as filler in journey is passivated, is hardened.
(4) Fenton's reaction:After the b11 dosings of dosing pond, water is entered by pump b12 into coiled pipe 13 for micro-electrolysis device water outlet
Row Fenton's reaction, medicine pond b dosings adjust pH value and content of hydrogen peroxide.
(5) coagulating sedimentation:Water outlet precipitates after the c14 dosings of dosing pond into coagulative precipitation tank 15 after Fenton's reaction.
(6) photocatalysis:The clear liquid on coagulative precipitation tank top enters photocatalysis apparatus 17 by pump c16, can remove in clear liquid
Organic matter, the photocatalysis apparatus is using high photosensitive titanium dioxide film as semiconductor titanium deoxide catalyst, in specific wavelength
The ability for fighting for ultraviolet is enhanced after complex compound is introduced under the irradiation of ultraviolet light wave, in device, much also may be used even if organic matter
Light is absorbed in wider wave-length coverage photodissociation, Fe caused by photodissociation occurs2+Generation-OH quickly can be reacted with H, O, improved
H, O utilization rates.The utilization rate to ultraviolet and visible ray is improved, and then improve its film surface to high-concentration waste water to produce electricity
Sub- hole, the organic matter of film adsorption is activated by the H+ with strong oxidizing property, with H202Linkage is aoxidized and degraded, so as to reach
The purpose of organics removal.
(7) intensive filtration:Photocatalysis water outlet has intermediate water tank 18 to collect, then enters the row of intensive filtration device 20 by pump d19
Go out, the intensive filtration device uses filter of the PTFE biaxial tensiones hydrophilic film for filter core, can effectively remove colourity, denier
Organic matter and a small amount of, micro metal ion, the micelle of the surfactant molecule of PTFE biaxial tension hydrophilic films act on
And the solubilization of micelle can make trace contaminant in water be gathered in Surfactants surface and realize separation by filter membrane,
It can be reduced to waste water COD lower, ensure the stability of device.
Above-described embodiment is the specific descriptions carried out to the present invention, simply the present invention is further described, it is impossible to manage
Solve as limiting the scope of the present invention, it is nonessential that those skilled in the art according to the content of foregoing invention makes some
Modifications and adaptations are each fallen within protection scope of the present invention.
Claims (4)
- A kind of 1. coating waste-water processing unit, it is characterised in that：It includes regulating reservoir, enters raw water in regulating reservoir；The regulation Water in pond is entered after fore filter filtering by elevator pump to be entered in degassing carbonization linkage；The degassing carbonization linkage The bottom of device is connected with aerator；Carbonization membrane module is provided with the degassing carbonization linkage, is led on the membrane module that is carbonized Cross vavuum pump and be connected with activated carbon exhaust gas processing device, the waste water through the membrane module processing that is carbonized makes solvable, compatibility volatility Organic matter solubility is reduced and volatilized, and activated carbon is entered after volatile organic matter is by Strong oxdiative under the vacuum suction of vavuum pump Exhaust gas processing device；The outlet of the carbonization membrane module is connected to dosing pond a, adds dilute sulfuric acid to adjust the pH values in it in a of dosing pond；It is described Waste water in a of dosing pond can enter micro-electrolysis device by pump a, and micro-electrolysis device is connected to one with described aerator Rise；The delivery port of the micro-electrolysis device is connected to dosing pond b, and after the b dosings of dosing pond, the waste water in the b of dosing pond passes through pump b Fenton's reaction is carried out into coiled pipe；The delivery port of the coiled pipe is connected to dosing pond c, and after the c dosings of dosing pond, dosing pond c outlet is connected to coagulating sedimentation Pond；The clear liquid on the coagulative precipitation tank top enters photocatalysis apparatus, the delivery port connection of the photocatalysis apparatus by pump c Intermediate water tank, the water of intermediate water tank enters intensive filtration device by pump d, and intensive filtration device reduces the COD value of waste water, final water Discharge；The carbonization membrane module is composed in series by 30 hollow fiber tube membranes, and hollow fiber tube membrane is provided with air inlet, outlet Mouth, water inlet and delivery port, 30 hollow fiber tube membranes, which employ center water-locator, makes periosteum be filled in carbonized film component internal Uniformly, the phase-contact surface of gas and water two is big, and degassing efficiency is high；The photocatalysis apparatus is externally provided with UV-device, and photocatalysis apparatus is using high photosensitive titanium dioxide film as semiconductor titanium dioxide Titanium catalyst, under the irradiation of the ultraviolet light wave of specific wavelength, and complex compound is added in photocatalysis apparatus, increased after adding complex compound The strong ability of ultraviolet.
- A kind of 2. coating waste-water processing unit according to claim 1, it is characterised in that：The raw water is entered by pump to be adjusted Pond is saved, its outle water rate is 3.5t/h, and the volume of regulating reservoir is 20~30m3, device starts after reaching certain water in regulating reservoir Normal operation.
- A kind of 3. coating waste-water processing unit according to claim 1, it is characterised in that：The degassing carbonization linkage Pressure vacuum gauge is installed on pipeline between vavuum pump.
- A kind of 4. coating waste-water processing unit according to claim 1, it is characterised in that：The intensive filtration device uses PTFE biaxial tensiones hydrophilic film is the filter of filter core.
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| CN201510464286.3A CN105060586B (en) | 2015-07-31 | 2015-07-31 | A kind of coating waste-water processing unit |
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| CN201510464286.3A CN105060586B (en) | 2015-07-31 | 2015-07-31 | A kind of coating waste-water processing unit |
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| CN105060586B true CN105060586B (en) | 2017-12-08 |
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| CN107522362B (en) * | 2016-01-21 | 2018-06-19 | 山水环境科技股份有限公司 | A kind of deep treatment method for removing waste water mineral oil in fluid |
| CN107265557B (en) * | 2017-06-20 | 2020-10-23 | 天津大学 | Series-parallel combined oily sewage purification system based on photocatalysis and electrolysis technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100251405B1 (en) * | 1997-09-08 | 2000-04-15 | 이규철 | Wastewater treatment system using electrolysis and photocatalyst and synthetic method of the catalyst |
| CN101254987B (en) * | 2007-04-13 | 2010-11-24 | 东莞市英硫净水服务有限公司 | Handling method for advanced purification of little-volume refractory wastewater and operation equipment |
| CN202099086U (en) * | 2011-06-15 | 2012-01-04 | 杭州求是膜技术有限公司 | Novel degassing membrane component |
| CN203602439U (en) * | 2013-10-22 | 2014-05-21 | 湖北纽太力环境科技有限公司 | Comprehensive physicochemical treatment device for high-concentration difficultly-degradable industrial wastewater |
| CN104226116B (en) * | 2014-07-01 | 2016-06-22 | 杭州求是膜技术有限公司 | A kind of membrane contactor and manufacturing process thereof |
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