CN108996806A - A kind of chemical industry original sub-block technique - Google Patents

A kind of chemical industry original sub-block technique Download PDF

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Publication number
CN108996806A
CN108996806A CN201810587438.2A CN201810587438A CN108996806A CN 108996806 A CN108996806 A CN 108996806A CN 201810587438 A CN201810587438 A CN 201810587438A CN 108996806 A CN108996806 A CN 108996806A
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CN
China
Prior art keywords
waste water
treatment
processing
chemical industry
original sub
Prior art date
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Pending
Application number
CN201810587438.2A
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Chinese (zh)
Inventor
韩正刚
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Nanjing Yi Jie Environmental Protection Technology Co Ltd
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Nanjing Yi Jie Environmental Protection Technology Co Ltd
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Priority to CN201810587438.2A priority Critical patent/CN108996806A/en
Publication of CN108996806A publication Critical patent/CN108996806A/en
Pending legal-status Critical Current

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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
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • 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
    • 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
    • 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
    • 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
    • C02F2101/10—Inorganic compounds
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • 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
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • C02F2101/345—Phenols
    • 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
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • 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 chemical industry original sub-block techniques, including following treatment process steps: P1: collection water pretreatment, P2: resin adsorption processing, P3: oxidation processes, P4: biochemical treatment, P5: the processing of second level settlement treatment, P6: flocculation treatment, P7: concentration.The present invention provides a kind of chemical industry original sub-block technique, realizes the adsorption treatment to organic solvent, removes the organic matter in waste water, while recycling to phenol, the salt in waste water, while effective sedimentation filtration, decoloration, reaches discharge standard.

Description

A kind of chemical industry original sub-block technique
Technical field
The present invention relates to sewage-treatment plants, and in particular to a kind of chemical industry original sub-block technique.
Background technique
Chemical engineering sewage raw water refers to the chemical engineering sewage for carrying out any processing not yet, therefore dust in chemical engineering sewage raw water Grain, impurity are more, and concentration is big.Flocculation sedimentation tank is the primary process of chemical engineering sewage original sub-block, and it is heavy to flocculate to chemical engineering sewage Drop, filters out most large dust particle.
Contain a large amount of heavy metal in chemical industry raw water, and phenol content, salt content are higher, therefore effectively recycle phenol It is the research emphasis of existing chemical wastewater treatment with salt.
Summary of the invention
Goal of the invention: in view of the deficiencies of the prior art, the present invention provides a kind of chemical industry original sub-block technique, realizes to organic The adsorption treatment of solvent removes the organic matter in waste water, while recycling to phenol, the salt in waste water, while effective Sedimentation filtration, decoloration, reach discharge standard.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of chemical industry original sub-block technique, including following treatment process steps:
P1: chemical industry raw water is drained into collecting-tank, level-one settlement treatment is carried out in collecting-tank by collection water pretreatment；Adjust Ph Processing, the acid adding in collecting-tank, adjusting Ph are 2.5-3.0；
P2: resin adsorption processing, by P1, treated that waste water enters in resin adsorption tower, adsorption treatment, and timing detects waste water In phenol concentration, according to phenol concentration judge adsorb resin whether reach maximum adsorption intensity；
P3: oxidation processes, by P2 treated waste water enters oxidation pond internal oxidition processing；
P4: biochemical treatment, through P3, treated that waste water enters in biochemistry pool, biochemical treatment；
P5: the processing of second level settlement treatment, through P4, treated that waste water enters in second level settlement treatment pond, settlement treatment, discharge Sediment, the waste water after being settled；
P6: flocculation treatment, through P5, treated that waste water enters in flocculation basin, adds alkali to adjust PH to 8.5~9.0, and stir, and is added Flocculant flocculation arrives clear liquid after then settling；
P7: concentration obtains recycling water and high-salt wastewater through P6 treated clear liquid after concentration technique；It is high Density wastewater recycles salt after evaporator is handled.
Further, adsorption treatment in the resin adsorption tower recycles secondary use, with 5% sodium hydroxide solution with Resin after the flow velocity elution adsorption saturation of 1BV/h, and recycle phenol liquid.Realize the recycling of Pyrogentisinic Acid, meanwhile, to resin Clean cycle uses, save the cost, and cleaning speed is fast, and effect is good, effectively recycling phenol.
Further, P3 oxidation processes include electrochemicial oxidation, heterogeneous catalytic oxidation processing.
Further, P4 biochemical treatment process includes that the anaerobic biological pond successively set gradually is handled, at aerobic biochemical pool Reason.
Further, the anaerobic biological pond is outer circulation biochemical treatment tank, the anaerobic biochemical treatment pond connection biology Dynode system, improvement A/O treatment process.
Further, waste water successively charcoal treated, fluorine-filtering after P6 flocculation treatment.
Further, P7 concentration technique is that waste water is drained into evaporation and concentration tower, is carried out at low-temperature evaporation to waste water Reason.
Compared with prior art, the invention has the following advantages: first catchmenting to wastewater from chemical industry, waste water is assembled Into collecting-tank, Ph is then adjusted, waste water is tuned into acidity, facilitates the adsorption recovery of phenol；Then into resin adsorption tower Middle progress resin adsorption processing, effective Pyrogentisinic Acid are adsorbed, and phenol is then recycled, and after the completion of absorption, carry out oxidation processes, Impurity is restored, biochemical treatment is then carried out, removes the soluble insoluble organic matter of organic matter and part in waste water；Then It is settled, filters out precipitating, then flocculated, settle, then the clear liquid that obtains that treated is concentrated to give salt, to height The waste water of concentration is handled.Operating procedure of the invention is succinct, it can be achieved that effectively recycling phenol after wastewater treatment, recycling Salt, recovering effect is good, and the rate of recovery is high.
Specific embodiment
Technical solution of the present invention is described in detail below by embodiment.
Embodiment 1:
A kind of chemical industry original sub-block technique, including following treatment process steps:
P1: chemical industry raw water is drained into collecting-tank, level-one settlement treatment is carried out in collecting-tank by collection water pretreatment；Adjust Ph Processing, the acid adding in collecting-tank, adjusting Ph are 2.5-3.0；
P2: resin adsorption processing, by P1, treated that waste water enters in resin adsorption tower, adsorption treatment, and timing detects waste water In phenol concentration, according to phenol concentration judge adsorb resin whether reach maximum adsorption intensity；
P3: oxidation processes, by P2 treated waste water enters oxidation pond internal oxidition processing；
P4: biochemical treatment, through P3, treated that waste water enters in biochemistry pool, biochemical treatment；
P5: the processing of second level settlement treatment, through P4, treated that waste water enters in second level settlement treatment pond, settlement treatment, discharge Sediment, the waste water after being settled；
P6: flocculation treatment, through P5, treated that waste water enters in flocculation basin, adds alkali to adjust PH to 8.5~9.0, and stir, and is added Flocculant flocculation arrives clear liquid after then settling；
P7: concentration obtains recycling water and high-salt wastewater through P6 treated clear liquid after concentration technique；It is high Density wastewater recycles salt after evaporator is handled.
Further, adsorption treatment in the resin adsorption tower recycles secondary use, with 5% sodium hydroxide solution with Resin after the flow velocity elution adsorption saturation of 1BV/h, and recycle phenol liquid.Realize the recycling of Pyrogentisinic Acid, meanwhile, to resin Clean cycle uses, save the cost, and cleaning speed is fast, and effect is good, effectively recycling phenol.
Further, P3 oxidation processes include electrochemicial oxidation, heterogeneous catalytic oxidation processing.
Further, P4 biochemical treatment process includes that the anaerobic biological pond successively set gradually is handled, at aerobic biochemical pool Reason.
Further, the anaerobic biological pond is outer circulation biochemical treatment tank, the anaerobic biochemical treatment pond connection biology Dynode system, improvement A/O treatment process.
Further, waste water successively charcoal treated, fluorine-filtering after P6 flocculation treatment.
Further, P7 concentration technique is that waste water is drained into evaporation and concentration tower, is carried out at low-temperature evaporation to waste water Reason.
As above, it although the present invention has been indicated and described referring to specific preferred embodiment, shall not be construed as pair The limitation of invention itself.Without prejudice to the spirit and scope of the invention as defined in the appended claims, can to its It makes a variety of changes in form and in details.

Claims (7)

1. a kind of chemical industry original sub-block technique, it is characterised in that: including following treatment process steps:
P1: chemical industry raw water is drained into collecting-tank, level-one settlement treatment is carried out in collecting-tank by collection water pretreatment；Adjust Ph Processing, the acid adding in collecting-tank, adjusting Ph are 2.5-3.0；
P2: resin adsorption processing, by P1, treated that waste water enters in resin adsorption tower, adsorption treatment, and timing detects waste water In phenol concentration, according to phenol concentration judge adsorb resin whether reach maximum adsorption intensity；
P3: oxidation processes, by P2 treated waste water enters oxidation pond internal oxidition processing；
P4: biochemical treatment, through P3, treated that waste water enters in biochemistry pool, biochemical treatment；
P5: the processing of second level settlement treatment, through P4, treated that waste water enters in second level settlement treatment pond, settlement treatment, discharge Sediment, the waste water after being settled；
P6: flocculation treatment, through P5, treated that waste water enters in flocculation basin, adds alkali to adjust PH to 8.5~9.0, and stir, and is added Flocculant flocculation arrives clear liquid after then settling；
P7: concentration obtains recycling water and high-salt wastewater through P6 treated clear liquid after concentration technique；It is high Density wastewater recycles salt after evaporator is handled.
2. chemical industry original sub-block technique according to claim 2, it is characterised in that: at the absorption in the resin adsorption tower Reason recycling secondary use elutes the resin after adsorption saturation with 5% sodium hydroxide solution with the flow velocity of 1BV/h, and recycles phenol Liquid.
3. chemical industry original sub-block technique according to claim 3, it is characterised in that: P3 oxidation processes include electrochemical oxidation Processing, heterogeneous catalytic oxidation processing.
4. chemical industry original sub-block technique according to claim 1, it is characterised in that: P4 biochemical treatment process include successively according to The processing of anaerobic biological pond, the aerobic biochemical pool processing of secondary setting.
5. chemical industry original sub-block technique according to claim 1, it is characterised in that: the anaerobic biological pond is raw for outer circulation Change processing pond, the anaerobic biochemical treatment pond connects biological dynode system, improvement A/O treatment process.
6. chemical industry original sub-block technique according to claim 1, it is characterised in that: waste water is successively through work after P6 flocculation treatment Property charcoal processing, fluorine-filtering.
7. chemical industry original sub-block technique according to claim 1, it is characterised in that: P7 concentration technique is to arrange waste water Enter to tower is concentrated by evaporation, low-temperature evaporation processing is carried out to waste water.
CN201810587438.2A 2018-06-08 2018-06-08 A kind of chemical industry original sub-block technique Pending CN108996806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810587438.2A CN108996806A (en) 2018-06-08 2018-06-08 A kind of chemical industry original sub-block technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810587438.2A CN108996806A (en) 2018-06-08 2018-06-08 A kind of chemical industry original sub-block technique

Publications (1)

Publication Number Publication Date
CN108996806A true CN108996806A (en) 2018-12-14

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Application Number Title Priority Date Filing Date
CN201810587438.2A Pending CN108996806A (en) 2018-06-08 2018-06-08 A kind of chemical industry original sub-block technique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111689641A (en) * 2019-03-13 2020-09-22 姜林 Full-quantitative treatment method for landfill leachate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111689641A (en) * 2019-03-13 2020-09-22 姜林 Full-quantitative treatment method for landfill leachate

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Application publication date: 20181214