CN108033630A - A kind of esterified waste water treatment process - Google Patents
A kind of esterified waste water treatment process Download PDFInfo
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- CN108033630A CN108033630A CN201711233179.5A CN201711233179A CN108033630A CN 108033630 A CN108033630 A CN 108033630A CN 201711233179 A CN201711233179 A CN 201711233179A CN 108033630 A CN108033630 A CN 108033630A
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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- 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
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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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
Abstract
The invention discloses a kind of esterified waste water treatment process, comprise the following steps：S1, esterified waste water add H after oil separator, collecting-tank processing successively2O2；S2, react to neutralization pond through outer circulation light electrolysis Fenton oxidation；Regulating reservoir is arrived after S3, neutralized pond, reaction tank A processing；UASB reaction tanks are arrived after S4, adjusted pond, hydrolysis acidification pool, the processing of anaerobism regulating reservoir；S5, arrive multi stage decompression pond after compound UASB processing；S6, arrive reaction tank B after multi stage decompression pond, sedimentation basin B processing；S7, arrive transfer pond after sedimentation basin C precipitations；S8, through transfer pond be pumped into neutral catalysis oxidation pond, then flows into clear water reserviors reuse or discharged through floss hole, completes the treatment process of esterified waste water.Esterified waste water treatment process proposed by the present invention is big to wastewater treatment intensity, a large amount of polluters in energy treatment and purification removal waste water, and cost is low, suitable for the high esterified water of seriously polluted, emission request.
Description
Technical field
The present invention relates to esterified technical field of waste water processing, more particularly to a kind of esterified waste water treatment process.
Background technology
Synthetic resin coating is the esterified water tool that is produced in its production process by artificial synthesized a kind of high molecular polymer
There is the characteristics of high organic content, biodegradability is low.Wherein alkyd resin is a kind of important paint vehicle in coating, it produces waste water
In mainly contain triphen, alcohols, ethers, lipid, COD may be up to upper 100,000；Water paint produces waste water and lacquer production waste water
Component is similar, mainly contains polyvinyl alcohol, emulsion, titanium dioxide etc., and COD and suspended matter are higher.Therefore, how to reduce esterified useless
The COD of water, is a job with important social effect and economic benefit.
With the high speed development of science and technology, wastewater processing technology makes rapid progress, but does not have pin for the technique of esterified waste water
To property scheme.Conventional solution is generally pretreatment+biochemical process, and it is then " anaerobism to pre-process as flocculation sediment, biochemical treatment
+ SBR processing ", or " anaerobism+contact oxidation technology ".The technique obtains certain effect for general waste water energy, but for highly concentrated
It is beyond one's ability that degree, maximum discharge, which require the processing of esterified water,.In recent years, biomembrane hyperfiltration technique, reverse osmosis, electrodialysis, from
The means such as son exchange also continuously emerge, but one side processing cost is excessive, and on the other hand esterified waste component is complicated so that processing
Difficulty increases, and therefore, ripe treatment technology is there is no for the esterified water of high concentration, maximum discharge requirement.
Invention if Authorization Notice No. is CN 103086562A discloses a kind of phenolic resin wastewater processing method and special
Equipment, the patent mainly utilize Ca (OH)2Coagulating sedimentation is carried out with waste water, water outlet enters subsequent biochemical after Fenton reacts
Processing system, but the pretreating process is complicated, control is more demanding, and is only applicable to the useless of phenolic resin and its analogous components
Water, for subsequent treatment using traditional " anaerobism+contact oxidation technology ", COD concentration is about 500mg/L after processing, it is difficult to is reached more
High discharge standard.
For another example Authorization Notice No. is that the invention of CN 104086040A discloses a kind of WATER-WASHING METHOD epoxy resin waste-water processing system
System and technique, including technique, the technique such as advanced oxidation precipitation, hydrolysis anaerobism, two sections of aerobic CBR need before processing system is entered
Matched through dilution, salinity is preserved within the specific limits, Wastewater Pollutant concentration is actual in reduced levels, technique after dilution
Disposal ability is not high.Based on the shortcomings of the prior art, a kind of processing intensity of proposition of the invention is big, energy treatment and purification removal
A large amount of polluters in waste water, cost is low, suitable for the high esterified water treatment technology of seriously polluted, emission request.
The content of the invention
The purpose of the present invention is to solve shortcoming existing in the prior art, and a kind of esterified wastewater treatment work proposed
Skill.
A kind of esterified waste water treatment process, comprises the following steps：
S1, oil removal：Esterified waste water is passed through oil separator, the grease in waste water is removed through oil separator, then enters back into and catchment
Pond regulating pondage water quality, adds H after regulating water quality2O2, then it is pumped into outer circulation light electrolysis Fenton oxidation tank；
S2, the reaction of outer circulation light electrolysis Fenton oxidation：Add H2O2Esterified waste water in outer circulation light electrolysis Fenton oxygen
Change in tank, H2O2Reacted with the iron carbon in outer circulation light electrolysis Fenton oxidation tank, while water outlet flows to the micro- electricity of outer circulation by blowback
Solve Fenton oxidation tank, 1~2h of circular response, then by esterified waste water pump to neutralization pond；
S3, neutralization reaction precipitation：The pH value that sodium hydroxide adjusts esterified waste water is added into neutralization pond, it is then anti-from flowing into
To answer in the A of pond, then flocculation aid is added into reaction tank A, reaction generates precipitable sludge, then through sedimentation basin A supernatants after precipitation
From inflow regulating reservoir；
S4, hydrolysis acidification：The esterified adjusted pond of waste water is delivered to hydrolysis acidification pool after adjusting, and is carried out in hydrolysis acidification pool
Hydrolysis acidification, and specific aim adds obligate strain, the esterified waste water after hydrolysis acidification pool is handled flows automatically to anaerobism regulating reservoir, and
Heat cycles pump is installed in anaerobism regulating reservoir, needs timing that sewage is evacuated to boiler heating according to sewage disposal, in anaerobism tune
Processed esterified waste water is pumped into UASB reaction tanks again in section pond；
S5, compound UASB：Esterified waste water passes through hybrid anaerobic reactor in UASB reaction tanks, to the microorganism in waste water
Sufficient nutrition is provided, the esterified waste water after compound UASB processing flows automatically to multi stage decompression pond；
S6, multi stage decompression：Multi stage decompression pond uses combined stuffing, and bottom of pond is evenly distributed with platy fine bubble aerator,
A large amount of aerobic bacterias are attached with filler, under the conditions of aeration aerating, dirty Organic substance in water is resolved into inorganic matter, while by ammonia nitrogen
Nitrite and nitrate are oxidized to, reaction tank B is flowed into certainly after sedimentation basin B precipitations through the water outlet of multi stage decompression pond；
S7, follow-up coagulating sedimentation：Flocculant and flocculation aid are added into reaction tank B, reaction generates precipitable sludge, warp
After sedimentation basin C precipitations, supernatant flows into transfer pond certainly；
S8, neutral catalytic oxidation treatment：Esterified waste water after follow-up coagulating sedimentation is pumped into neutral catalysis oxygen via transfer pond
Change pond, then oxidant is added into neutral catalysis oxidation pond, the esterified waste water after processing is from inflow clear water reserviors reuse or through discharge
Mouth discharge, completes the treatment process of esterified waste water.
Preferably, the pH value of esterified waste water is adjusted to 7.5~8.5 in the step S3.
Preferably, hydrolysis acidification uses point-to-point water distribution manner in the step S4.
Preferably, hybrid anaerobic reactor uses point-to-point water distribution manner, and hybrid anaerobic reactor in the step S5
With agitating function, and according to the characteristic of esterified waste water, Electrostatic Absorption filler is installed in anaerobic reactor.
Preferably, the addition standard of oxidant is in the step S8：1 ton of esterified waste water adds 1~1.4kg oxidants.
Preferably, the sludge that the sedimentation basin A and sedimentation basin C are produced is discharged into materialized mud pond, the sludge that sedimentation basin B is produced
Biochemical sludge pond, materialized mud pond and biochemical sludge pond are then discharged into by after sludge condensation, is taken off respectively by being pumped into filter press
Water process, the mud cake after dehydration are transported outward again.
Compared with prior art, beneficial effects of the present invention：
1st, treatment process proposed by the present invention is reliable and stable, and disposal ability is strong, advantage of lower cost, suitable for serious pollution
Esterified water；
2nd, reacted using outer circulation light electrolysis Fenton oxidation, esterified water can be reduced to outer circulation light electrolysis by first excluding grease
The influence of Fenton oxidation, waste water are in highly acid, and dosage can be reduced compared to other techniques, reduce acid, the use of lye；Will
Fenton oxidation is combined with light electrolysis improves pollutants removal rate, while is added on the basis of the reaction of light electrolysis Fenton oxidation
External circulating system, not only considerably increases pollutants removal rate, moreover it is possible to ensures that influent quality is stablized, while reduces dosage；
3rd, hydrolysis acidification pool uses point-to-point water distribution manner, makes water distribution more uniform, and biological contact reaction is more efficient, and
Obligate strain is added for esterified water characteristic, removes remaining ethers and benzene class in waste water；
4th, UASB reaction tanks use the improved hybrid anaerobic reactor formed, and reactor uses point-to-point water distribution manner,
Make water distribution more uniform, biological contact reaction is more efficient, the microorganism in reactor is obtained the nutrition of abundance, at the same time
With agitating function, always according to the characteristic of esterified water, in Electrostatic Absorption filler built in anaerobic reactor, in adsorptive reactor
Free floc sludge, is enriched with and improves treatment effeciency so as to fulfill sludge；
5th, the advanced treating stage uses coagulating sedimentation+neutrality catalytic oxidation technique, removes non-degradable remaining in sewage
Organic matter and pathogenic bacteria, make water outlet as clear as crystal, it is ensured that stable effluent quality qualified discharge；
6th, the process effect is good, stable, and the esterified waste water after processing can reach《Synthetic resin industry pollutes
Thing discharge standard》Sewage Water Emissions limit value as defined in GB 31572-2015, water outlet COD is in below 50mg/L.
Brief description of the drawings
Fig. 1 is a kind of flow chart of esterified waste water treatment process proposed by the present invention.
Embodiment
The present invention is made with reference to specific embodiment further to explain.
Embodiment
With reference to Fig. 1, a kind of esterified waste water treatment process proposed by the present invention, comprises the following steps：
S1, oil removal：Esterified waste water is passed through oil separator, the grease in waste water is removed through oil separator, then enters back into and catchment
Pond regulating pondage water quality, adds H after regulating water quality2O2, then it is pumped into outer circulation light electrolysis Fenton oxidation tank；
S2, the reaction of outer circulation light electrolysis Fenton oxidation：Add H2O2Esterified waste water in outer circulation light electrolysis Fenton oxygen
Change in tank, H2O2Reacted with the iron carbon in outer circulation light electrolysis Fenton oxidation tank, while water outlet flows to the micro- electricity of outer circulation by blowback
Solve Fenton oxidation tank, 1~2h of circular response, then by esterified waste water pump to neutralization pond；
S3, neutralization reaction precipitation：The pH value that sodium hydroxide adjusts esterified waste water is added into neutralization pond, it is then anti-from flowing into
To answer in the A of pond, then flocculation aid is added into reaction tank A, reaction generates precipitable sludge, then through sedimentation basin A supernatants after precipitation
From inflow regulating reservoir；
S4, hydrolysis acidification：The esterified adjusted pond of waste water is delivered to hydrolysis acidification pool after adjusting, and is used in hydrolysis acidification pool
Acidifying is hydrolyzed in point-to-point water distribution manner, and specific aim adds obligate strain, esterified useless after hydrolysis acidification pool is handled
Water flows automatically to anaerobism regulating reservoir, and heat cycles pump is installed in anaerobism regulating reservoir, needs timing by sewage according to sewage disposal
Boiler heating is evacuated to, processed esterified waste water is pumped into UASB reaction tanks again in anaerobism regulating reservoir；
S5, compound UASB：Esterified waste water passes through hybrid anaerobic reactor in UASB reaction tanks, to the microorganism in waste water
Sufficient nutrition is provided, and hybrid anaerobic reactor uses point-to-point water distribution manner, while hybrid anaerobic reactor has stirring
Function, and according to the characteristic of esterified waste water, Electrostatic Absorption filler is installed in anaerobic reactor, the fat after compound UASB processing
Change waste water and flow automatically to multi stage decompression pond；
S6, multi stage decompression：Multi stage decompression pond uses combined stuffing, and bottom of pond is evenly distributed with platy fine bubble aerator,
A large amount of aerobic bacterias are attached with filler, under the conditions of aeration aerating, dirty Organic substance in water is resolved into inorganic matter, while by ammonia nitrogen
Nitrite and nitrate are oxidized to, reaction tank B is flowed into certainly after sedimentation basin B precipitations through the water outlet of multi stage decompression pond；
S7, follow-up coagulating sedimentation：Flocculant and flocculation aid are added into reaction tank B, reaction generates precipitable sludge, warp
After sedimentation basin C precipitations, supernatant flows into transfer pond certainly；
S8, neutral catalytic oxidation treatment：Esterified waste water after follow-up coagulating sedimentation is pumped into neutral catalysis oxygen via transfer pond
Change pond, then the dosage for adding 1~1.4kg oxidants according to every 1 ton esterified waste water kind into neutral catalysis oxidation pond adds oxidation
Agent, the esterified waste water after processing complete the treatment process of esterified waste water from flowing into clear water reserviors reuse or being discharged through floss hole.
In the present invention, the sludge that sedimentation basin A and sedimentation basin C are produced is discharged into materialized mud pond, and the sludge that sedimentation basin B is produced is then
Biochemical sludge pond, materialized mud pond and biochemical sludge pond are discharged into by after sludge condensation, is dehydrated respectively by being pumped into filter press
Handle, the mud cake after dehydration is transported outward again.
Esterified waste water is handled using esterified waste water treatment process proposed by the present invention, according to《Synthetic resin industry
Pollutant emission standard》GB 31572-2015 standards are detected the esterified waste water after processing, while water outlet COD is carried out
Detection, waste water indices of the results show after esterified waste water treatment process processing proposed by the present invention meet《Synthesis
Resin Industry pollutant emission standard》, and water outlet COD value only has 46.3mg/L.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of esterified waste water treatment process, it is characterised in that comprise the following steps：
S1, oil removal：Esterified waste water is passed through oil separator, the grease in waste water is removed through oil separator, then enters back into collecting-tank tune
Water-saving amount water quality, adds H after regulating water quality2O2, then it is pumped into outer circulation light electrolysis Fenton oxidation tank；
S2, the reaction of outer circulation light electrolysis Fenton oxidation：Add H2O2Esterified waste water in outer circulation light electrolysis Fenton oxidation tank
In, H2O2Reacted with the iron carbon in outer circulation light electrolysis Fenton oxidation tank, while water outlet flows to outer circulation light electrolysis by blowback
Fenton oxidation tank, 1~2h of circular response, then by esterified waste water pump to neutralization pond；
S3, neutralization reaction precipitation：The pH value that sodium hydroxide adjusts esterified waste water is added into neutralization pond, then from inflow reaction tank
In A, then flocculation aid is added into reaction tank A, reaction generates precipitable sludge, then flows automatically through sedimentation basin A supernatants after precipitation
Enter regulating reservoir；
S4, hydrolysis acidification：The esterified adjusted pond of waste water is delivered to hydrolysis acidification pool after adjusting, and is hydrolyzed in hydrolysis acidification pool
Acidifying, and specific aim adds obligate strain, the esterified waste water after hydrolysis acidification pool is handled flows automatically to anaerobism regulating reservoir, and is detesting
Installation heat cycles pump in oxygen regulating reservoir, needs timing that sewage is evacuated to boiler heating, in anaerobism regulating reservoir according to sewage disposal
In processed esterified waste water be pumped into UASB reaction tanks again；
S5, compound UASB：Esterified waste water passes through hybrid anaerobic reactor in UASB reaction tanks, is provided to the microorganism in waste water
Sufficient nutrition, the esterified waste water after compound UASB processing flow automatically to multi stage decompression pond；
S6, multi stage decompression：Multi stage decompression pond uses combined stuffing, and bottom of pond is evenly distributed with platy fine bubble aerator, filler
On be attached with a large amount of aerobic bacterias, under the conditions of aeration aerating, dirty Organic substance in water is resolved into inorganic matter, while by ammonium oxidation
Into nitrite and nitrate, reaction tank B is flowed into certainly after sedimentation basin B precipitations through the water outlet of multi stage decompression pond；
S7, follow-up coagulating sedimentation：Flocculant and flocculation aid are added into reaction tank B, reaction generates precipitable sludge, through precipitation
After pond C precipitations, supernatant flows into transfer pond certainly；
S8, neutral catalytic oxidation treatment：Esterified waste water after follow-up coagulating sedimentation is pumped into neutral catalysis oxidation pond via transfer pond,
Oxidant is added into neutral catalysis oxidation pond again, the esterified waste water after processing is arranged from inflow clear water reserviors reuse or through floss hole
Put, complete the treatment process of esterified waste water.
A kind of 2. esterified waste water treatment process according to claim 1, it is characterised in that esterified waste water in the step S3
PH value adjust to 7.5~8.5.
A kind of 3. esterified waste water treatment process according to claim 1, it is characterised in that hydrolysis acidification in the step S4
Using point-to-point water distribution manner.
A kind of 4. esterified waste water treatment process according to claim 1, it is characterised in that composite anaerobic in the step S5
Reactor uses point-to-point water distribution manner, and hybrid anaerobic reactor has an agitating function, and according to the characteristic of esterified waste water,
Installation Electrostatic Absorption filler in anaerobic reactor.
A kind of 5. esterified waste water treatment process according to claim 1, it is characterised in that oxidant in the step S8
Addition standard is：1 ton of esterified waste water adds 1~1.4kg oxidants.
6. a kind of esterified waste water treatment process according to claim 1, it is characterised in that the sedimentation basin A and sedimentation basin C
The sludge of generation is discharged into materialized mud pond, and the sludge that sedimentation basin B is produced then is discharged into biochemical sludge pond, and materialized mud pond and biochemistry are dirty
Mud sump is carried out dehydrating by being pumped into filter press respectively by after sludge condensation, and the mud cake after dehydration is transported outward again.
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Cited By (9)
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| CN111592093A (en) * | 2020-05-25 | 2020-08-28 | 中国科学院城市环境研究所 | Phenolic aldehyde wastewater treatment method |
| CN111925062A (en) * | 2020-08-14 | 2020-11-13 | 天津城建大学 | Combined treatment process for pharmaceutical intermediate production wastewater |
| CN112079524A (en) * | 2020-08-28 | 2020-12-15 | 陕西欧菲德环保科技有限公司 | Oily sewage treatment system and treatment process |
| CN112661323A (en) * | 2020-12-29 | 2021-04-16 | 昆山美淼环保科技有限公司 | Water electrochemical treatment method for phenolic resin biochemical tail water |
| CN112759196A (en) * | 2021-01-05 | 2021-05-07 | 广州漓源环保技术有限公司 | Treatment process of esterification wastewater |
| CN114163077A (en) * | 2021-12-07 | 2022-03-11 | 江苏省瑞丰高分子材料有限公司 | Industrial wastewater treatment process for methyl acetate production |
| CN114249491A (en) * | 2021-12-15 | 2022-03-29 | 盐城工学院 | Method for treating chemical wastewater by IFBR-HAF-CASS process |
| CN115353262A (en) * | 2022-10-20 | 2022-11-18 | 威海蓝创环保设备有限公司 | Esterification wastewater treatment process |
| CN116655154A (en) * | 2023-06-08 | 2023-08-29 | 江苏泰源环保科技股份有限公司 | Treatment method of high-concentration capsicum wastewater |
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