CN109970282A - A kind of vegetable product high-salt sewage treatment process - Google Patents
A kind of vegetable product high-salt sewage treatment process Download PDFInfo
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- CN109970282A CN109970282A CN201910337697.4A CN201910337697A CN109970282A CN 109970282 A CN109970282 A CN 109970282A CN 201910337697 A CN201910337697 A CN 201910337697A CN 109970282 A CN109970282 A CN 109970282A
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- Prior art keywords
- sewage
- salt
- salt sewage
- salinity
- water
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- 239000010865 sewage Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 20
- 235000013311 vegetables Nutrition 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 150000003839 salts Chemical class 0.000 claims abstract description 12
- 238000010612 desalination reaction Methods 0.000 claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 claims abstract description 8
- 238000000909 electrodialysis Methods 0.000 claims abstract description 7
- 230000000813 microbial effect Effects 0.000 claims abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 6
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 4
- 239000013535 sea water Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 6
- 239000012267 brine Substances 0.000 claims description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 5
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 238000009287 sand filtration Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 2
- 238000011069 regeneration method Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 235000021110 pickles Nutrition 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The present invention relates to technical field of sewage, provide a kind of vegetable product high-salt sewage treatment process, including filtering and impurity removing, oil removing, salinity and pH are adjusted, microbial biochemical processing, tube settling, sterilization, filtering and impurity removing again, reverse osmosis, sea water desalination and selective electrodialysis step.The beneficial effects of the invention are as follows high-salt sewage impure part qualified discharge after processing, is reused between the high-purity salt water carriage return after pure water and concentration, greatly reduce the pollution to environment；And by microbial biochemical handle can organic matter in fast degradation sewage, the COD value of sewage is effectively reduced.
Description
Technical field
The present invention relates to technical field of sewage, more particularly, to a kind of vegetable product high-salt sewage treatment process.
Background technique
Salted & preserved vegetable and pickles are marinated from cleaning to, and will generate a large amount of waste water, and the pickling waste water discharged after marinated belongs to organic
Sewage, waste water salt content are 400-45000ppm, and total salt averagely reaches 15000ppm or so, and COD is generally 1000-1500ppm,
If untreated with regard to direct emission, serious pollution will be generated to soil and groundwater.Currently, what salted & preserved vegetable and pickles generated
Organic sewage, some producers take coarse filtration, ultrafiltration, desalination etc. to handle, and contained organic matter cannot get harmless treatment, discharge subsequent
It is continuous to pollute, although what is had increases microbial biochemical processing, with decomposing organic matter and denitrogenate, the effect is unsatisfactory.
Summary of the invention
The object of the present invention is to provide a kind of vegetable product high-salt sewage treatment process, and treated, and impure sewage is up to standard
It is reused between high-purity salt water carriage return after discharge, pure water and concentration, realizes harmful sewage zero-discharge.
The technical scheme is that a kind of vegetable product high-salt sewage treatment process, which is characterized in that including walking as follows
It is rapid:
(1) filtering and impurity removing: the high-salt sewage come out from plant effluent outlet first passes through the filtering of coarse rack and fine fack
Biggish impurity is removed, is then cleaned using Microfilter further progress；
(2) oil removing: the high-salt sewage after filtering and impurity removing enters grease removal tank, and the scraper plate being arranged in grease removal tank will float on the surface
Oil strike off；
(3) salinity is adjusted: the high-salt sewage after oil removing enters salinity conditioning tank and carries out salinity and pH value adjusting；
(4) microbial biochemical is handled: the high-salt sewage after salinity and pH value adjusting sequentially enters anaerobic pond and aerobic tank, leads to
The biochemical action for crossing Facultative Halophiles reduces COD value；
(5) tube settling: the sewage after biochemical treatment enters inclined-tube sedimentation tank, makes the suspended matter in water, solidfied material and wadding
Condensate further settles removal；
(6) it sterilizes: ultraviolet sterilization is carried out to the high-salt sewage after precipitation process；
(7) filter again: treated sewage is again successively through sand filtration, and active carbon filter and regeneration filter are into one
Step removal of impurities；
(8) film filters: the high-salt sewage after removal of impurities enters reverse osmosis membrane and carries out film filtration treatment, pure water carriage return that treated
Between continue to produce and use, account for about the 80~85% of water, remaining 15~20% concentrated waters are further processed through sea water desalination membrane again
To desalination water and high salinity brine, continue to produce and use between desalination water carriage return；
(9) selective electrodialysis: above-mentioned high salinity brine passes through selective electrodialysis, obtained impure water row up to standard
It puts, clean high-purity salt water returns to workshop after sterilizing and uses for marinated.
Further, the size of Microfilter filtering surface is 20 mesh in step (1).
Further, NaOH is added in step (3) and the pH of high-salt sewage is adjusted to alkalinity.
Further, it is additionally provided with air floatation machine between step (3) and step (4), for removing solid suspension.
The advantages and positive effects of the present invention are:
(1) through this process technique, it can be achieved that high-purity after treated impure sewage qualified discharge, pure water and concentration
It is reused between degree salt water carriage return, realizes harmful sewage zero-discharge；
(2) it is handled by microbial biochemical, degradation treatment effectively can be carried out to the organic matter in sewage, quickly made
COD value is reduced to 150 from 1000.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Attached drawing 1 is process flow chart of the invention, a kind of specific embodiment is given, with reference to the accompanying drawing to this hair
It is bright to be further elaborated.
A kind of vegetable product high-salt sewage treatment process, includes the following steps:
(1) filtering and impurity removing: the high-salt sewage come out from plant effluent outlet first passes through the filtering of coarse rack and fine fack
Biggish impurity is removed, is then cleaned using Microfilter further progress, the impurity of 20 mesh or more is removed；
(2) oil removing: the high-salt sewage after filtering and impurity removing enters grease removal tank, and the scraper plate being arranged in grease removal tank is back and forth transported back and forth
It is dynamic to strike off supernatant oil；
(3) salinity is adjusted: the high-salt sewage after oil removing enters salinity conditioning tank and carries out salinity and pH value adjusting, and salinity is adjusted
It is mainly mixed by the sewage of Low-salinity and high salinity, the less salt sewage and 16000- of 5000-6000ppm or so
NaOH is added by salt water pH value in conditioning tank to which salinity is adjusted to 14000ppm in the haline water mixing of 20000ppm
8 or so are adjusted to be further processed in favor of subsequent；
(4) microbial biochemical is handled: the high-salt sewage after salinity and pH value adjusting is introduced into air floatation machine and further removes admittedly
Body suspended matter, then sequentially enters anaerobic pond and aerobic tank again, reduces COD value by the biochemical action of extraordinary Facultative Halophiles, aerobic
The bottom of pond in pond is provided with porous aeration tube, and the outer air blower of connection pool adds the aerobic strain of salt tolerant into pond, will generate biology in pond
Oxidation reaction and biological nitration reaction, can be by the COD value of high-salt sewage from 1000 by the biochemical action of anaerobic pond and aerobic tank
It is reduced to 150；
(5) tube settling: the sewage after biochemical treatment enters inclined-tube sedimentation tank, makes the suspended matter in water, solidfied material and wadding
Condensate further settles removal；
(6) it sterilizes: ultraviolet sterilization being carried out to the high-salt sewage after precipitation process, avoids sterilization using ultraviolet sterilization
Damage of the agent strong oxidizing property to film in subsequent processes；
(7) filter again: treated sewage is again successively through sand filtration and active carbon filter by the miscellaneous of 20um or more
Matter removal, after regenerated filter and further cleaned, the impurity of 5um or more is removed；
(8) film filters: the high-salt sewage after removal of impurities enters reverse osmosis membrane and carries out Multistage Membranes filtration treatment, treated pure water
Continue to produce and use between carriage return, account for about the 80~85% of water, residue 15~20% treated concentrated water salinity improves to
30000ppm, then it is further processed to obtain desalination water and salinity through sea water desalination membrane as the high salinity salt of 40000-50000ppm
Water continues to produce and use between desalination water carriage return；
(9) selective electrodialysis: above-mentioned high salinity brine passes through selective electrodialysis, obtained impure water row up to standard
It puts, clean high-purity salt water returns to the use of workshop Pickle after sterilizing.
One embodiment of the present invention has been described in detail above, but the content is only preferable implementation of the invention
Example, should not be considered as limiting the scope of the invention.It is all according to all the changes and improvements made by the present patent application range
Deng should still be within the scope of the patent of the present invention.
Claims (4)
1. a kind of vegetable product high-salt sewage treatment process, which comprises the steps of:
(1) filtering and impurity removing: the high-salt sewage come out from plant effluent outlet first passes through being filtered to remove for coarse rack and fine fack
Then biggish impurity cleans using Microfilter further progress；
(2) oil removing: the high-salt sewage after filtering and impurity removing enters grease removal tank, and the scraper plate being arranged in grease removal tank is by supernatant oil
It strikes off；
(3) salinity is adjusted: the high-salt sewage after oil removing enters salinity conditioning tank and carries out salinity and pH adjusting；
(4) microbial biochemical is handled: the high-salt sewage after salinity is adjusted sequentially enters anaerobic pond and aerobic tank, passes through Facultative Halophiles
Biochemical action reduces COD value；
(5) tube settling: the sewage after biochemical treatment enters inclined-tube sedimentation tank, further sedimentation removal impurity；
(6) it sterilizes: ultraviolet sterilization is carried out to the high-salt sewage after precipitation process；
(7) filter again: treated sewage is again successively through sand filtration, active carbon filter and the regeneration further mistake of filter
It filters out miscellaneous；
(8) film filter: the high-salt sewage after removal of impurities enter reverse osmosis membrane carry out film filtration treatment, between pure water carriage return that treated after
Continuous to produce and use, concentrated water is further processed to obtain desalination water and high salinity brine again through sea water desalination membrane, between desalination water carriage return after
It is continuous to produce and use；
(9) selective electrodialysis: above-mentioned high salinity brine is by selective electrodialysis, obtained impure water qualified discharge,
Clean high-purity salt water returns to workshop for producing and using.
2. vegetable product high-salt sewage treatment process according to claim 1, it is characterised in that: Microfilter in step (1)
The size of filtering surface is 20 mesh.
3. vegetable product high-salt sewage treatment process according to claim 1, it is characterised in that: be added in step (3)
The pH value of high-salt sewage is adjusted to alkalinity by NaOH.
4. vegetable product high-salt sewage treatment process according to claim 1, it is characterised in that: step (3) and step (4)
Between be additionally provided with air floatation machine, for removing solid suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337697.4A CN109970282A (en) | 2019-04-25 | 2019-04-25 | A kind of vegetable product high-salt sewage treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910337697.4A CN109970282A (en) | 2019-04-25 | 2019-04-25 | A kind of vegetable product high-salt sewage treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109970282A true CN109970282A (en) | 2019-07-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910337697.4A Withdrawn CN109970282A (en) | 2019-04-25 | 2019-04-25 | A kind of vegetable product high-salt sewage treatment process |
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| Country | Link |
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| CN (1) | CN109970282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466017A (en) * | 2022-10-12 | 2022-12-13 | 唐山碳丰农业科技有限公司 | Pickle wastewater treatment method and device |
-
2019
- 2019-04-25 CN CN201910337697.4A patent/CN109970282A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115466017A (en) * | 2022-10-12 | 2022-12-13 | 唐山碳丰农业科技有限公司 | Pickle wastewater treatment method and device |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190705 |
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| WW01 | Invention patent application withdrawn after publication |