CN107253779A - The handling process of low concentration oily waste water - Google Patents

The handling process of low concentration oily waste water Download PDF

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Publication number
CN107253779A
CN107253779A CN201710665143.8A CN201710665143A CN107253779A CN 107253779 A CN107253779 A CN 107253779A CN 201710665143 A CN201710665143 A CN 201710665143A CN 107253779 A CN107253779 A CN 107253779A
Authority
CN
China
Prior art keywords
waste water
ultrafiltration
oxidative
handling
low concentration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710665143.8A
Other languages
Chinese (zh)
Inventor
李飞
许县明
姜广朋
姚嘉恒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU JIUPEI ENVIRONMENTAL TECHNOLOGY Co Ltd
Original Assignee
SUZHOU JIUPEI ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUZHOU JIUPEI ENVIRONMENTAL TECHNOLOGY Co Ltd filed Critical SUZHOU JIUPEI ENVIRONMENTAL TECHNOLOGY Co Ltd
Priority to CN201710665143.8A priority Critical patent/CN107253779A/en
Publication of CN107253779A publication Critical patent/CN107253779A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/725Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • C02F1/78Treatment of water, waste water, or sewage by oxidation with ozone
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/04Flow arrangements
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/02Specific form of oxidant
    • C02F2305/023Reactive oxygen species, singlet oxygen, OH radical

Abstract

The invention discloses a kind of handling process of low concentration oily waste water, comprise the following steps:Original waste water inputs ultrafiltration system after coarse filtration and carries out ultrafiltration, and ultrafiltration system water outlet inputs counter-infiltration system and carries out osmosis filtration, the production Water circulation of counter-infiltration system again;The concentrate input oxidative system of ultrafiltration system and counter-infiltration system carries out oxidative degradation processing, the effluent recycling of oxidative system to ultrafiltration system.The present invention is that 600~800mg/L, Ph values are that 7.5~8.5, pollutant is mainly animal and plant fat and contains the waste water of a small amount of bactericide and lubricating oil matrix oil suitable for Cod, and water quality meets reuse standard after processing.

Description

The handling process of low concentration oily waste water
Technical field
The present invention relates to the handling process of low concentration oily waste water.
Background technology
Wastewater treatment(wastewater treatment methods)It is exactly to utilize physics, chemistry and biological method pair Waste water is handled, and makes purification of waste water, reduces pollution, so that reaching Sewage treatment, multiplexing, makes full use of water resource.
The processing of low concentration oily waste water is always relatively difficult, it is necessary to design applicable handling process.
The content of the invention
It is an object of the invention to provide a kind of handling process of low concentration oily waste water, its be applied to Cod be 600~ 800mg/L, Ph value are that 7.5~8.5, pollutant is mainly animal and plant fat and useless containing a small amount of bactericide and lubricating oil matrix oil Water quality meets reuse standard after water, processing.
To achieve the above object, the technical scheme is that designing a kind of handling process of low concentration oily waste water, bag Include following steps:
Original waste water inputs ultrafiltration system after coarse filtration and carries out ultrafiltration, and ultrafiltration system water outlet inputs counter-infiltration system and carried out instead again Permeation filtration, the production Water circulation of counter-infiltration system;
The concentrate input oxidative system of ultrafiltration system and counter-infiltration system carries out oxidative degradation processing, and the water outlet of oxidative system is returned It flow to ultrafiltration system.
It is preferred that, the Cod of the original waste water is 600~800mg/L, and Ph values are 7.5~8.5, and pollutant is mainly dynamic Vegetable fat, a small amount of bactericide and lubricating oil matrix oil, water is in emulsification state.
It is preferred that, the oxidative system is ozone and electrodeless microwave ultraviolet lamp oxidative system.
It is preferred that, the oxidative system is made up of two sets of isolated oxidation subsystems:Online oxidation subsystem and separate type Aoxidize subsystem.
It is preferred that, directly catalysis produces hydroxyl radical free radical to the online oxidation subsystem in pending concentrate, real Now the decomposition carbonization to pollutant in concentrate is removed.
It is preferred that, the separate type oxidation subsystem produces hydroxyl radical free radical in advance using quasi-molecule optics catalyst converter, real Now the decomposition carbonization to pollutant in concentrate is removed.
The advantages of the present invention are:A kind of handling process of low concentration oily waste water is provided, it is applied to Cod is that 600~800mg/L, Ph values are that 7.5~8.5, pollutant is mainly animal and plant fat and containing a small amount of bactericide and lubricating oil Water quality meets reuse standard after the waste water of matrix oil, processing.
In highly difficult wastewater treatment, wire type oxidation subsystem and separate type oxidation subsystem are used in conjunction with embodiment and rank occur The unrivaled excellent effect of section:
1st, whole oxidizing process is added and only power consumption without medicament;
2nd, oxidation rate is fast and thorough, reduces the size increase wastewater treatment capacity of oxidative system;
3rd, oxidation product is carbon dioxide and a small amount of inorganic salts, no subsequent treatment expense;So ton cost of water treatment is ozone oxygen The 1/3~1/2 of other methods such as change.
The present invention has following features:
1st, the producing method of oxidant hydroxyl radical free radical:Online and separate type.In the case where identical energy is consumed, hydroxyl is certainly It is online high by 1/4~1/3 by quantity and oxidation-reduction potential the ratio list of base, react preceding 10 minutes organic matter degradation speed and carry significantly It is high.
2nd, oxidation reactor inner light source is arranged in pairs or groups for multiband uviol lamp:254nm, 185nm, the former penetration capacity are strong, the latter The oxygen that the energy of photon is better than the former ozone decomposed is produced under its irradiation can recombine ozone, improve ozone solubility and Utilization rate, reducing cost makes oxidation operation more thorough.
Embodiment
With reference to embodiment, the embodiment to the present invention is further described.Following examples are only used for more Plus technical scheme is clearly demonstrated, and can not be limited the scope of the invention with this.
The technical scheme that the present invention is embodied is:
A kind of handling process of low concentration oily waste water, comprises the following steps:
Original waste water inputs ultrafiltration system after coarse filtration and carries out ultrafiltration, and ultrafiltration system water outlet inputs counter-infiltration system and carried out instead again Permeation filtration, the production Water circulation of counter-infiltration system;
The concentrate input oxidative system of ultrafiltration system and counter-infiltration system carries out oxidative degradation processing, and the water outlet of oxidative system is returned It flow to ultrafiltration system.
The Cod of the original waste water is 600~800mg/L, and Ph values are 7.5~8.5, and pollutant is mainly vegetable and animals oils Fat, a small amount of bactericide and lubricating oil matrix oil, water is in emulsification state.
The oxidative system is ozone and electrodeless microwave ultraviolet lamp oxidative system.
The oxidative system is made up of two sets of isolated oxidation subsystems:Online oxidation subsystem and separate type oxidation subsystem System.
Directly catalysis produces hydroxyl radical free radical to the online oxidation subsystem in pending concentrate, realizes to concentration The decomposition carbonization of pollutant is removed in liquid.
The separate type oxidation subsystem produces hydroxyl radical free radical in advance using quasi-molecule optics catalyst converter, realizes to concentration The decomposition carbonization of pollutant is removed in liquid.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (6)

1. the handling process of low concentration oily waste water, it is characterised in that comprise the following steps:
Original waste water inputs ultrafiltration system after coarse filtration and carries out ultrafiltration, and ultrafiltration system water outlet inputs counter-infiltration system and carried out instead again Permeation filtration, the production Water circulation of counter-infiltration system;
The concentrate input oxidative system of ultrafiltration system and counter-infiltration system carries out oxidative degradation processing, and the water outlet of oxidative system is returned It flow to ultrafiltration system.
2. the handling process of low concentration oily waste water according to claim 1, it is characterised in that the original waste water Cod is 600~800mg/L, and Ph values are 7.5~8.5, and pollutant is mainly animal and plant fat, a small amount of bactericide and lubrication oil base Matter oil, water is in emulsification state.
3. the handling process of low concentration oily waste water according to claim 2, it is characterised in that the oxidative system is smelly Oxygen and electrodeless microwave ultraviolet lamp oxidative system.
4. the handling process of low concentration oily waste water according to claim 3, it is characterised in that the oxidative system is by two Cover isolated oxidation subsystem composition:Online oxidation subsystem and separate type oxidation subsystem.
5. the handling process of low concentration oily waste water according to claim 4, it is characterised in that online oxidation Directly catalysis produces hydroxyl radical free radical to system in pending concentrate, realizes that the decomposition carbonization to pollutant in concentrate is gone Remove.
6. the handling process of low concentration oily waste water according to claim 5, it is characterised in that separate type oxidation System produces hydroxyl radical free radical in advance using quasi-molecule optics catalyst converter, realizes that the decomposition carbonization to pollutant in concentrate is gone Remove.
CN201710665143.8A 2017-08-07 2017-08-07 The handling process of low concentration oily waste water Pending CN107253779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710665143.8A CN107253779A (en) 2017-08-07 2017-08-07 The handling process of low concentration oily waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710665143.8A CN107253779A (en) 2017-08-07 2017-08-07 The handling process of low concentration oily waste water

Publications (1)

Publication Number Publication Date
CN107253779A true CN107253779A (en) 2017-10-17

Family

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Application Number Title Priority Date Filing Date
CN201710665143.8A Pending CN107253779A (en) 2017-08-07 2017-08-07 The handling process of low concentration oily waste water

Country Status (1)

Country Link
CN (1) CN107253779A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492200A (en) * 2009-03-04 2009-07-29 广东工业大学 Method for photoelectrocatalysis oxidization of organic waste water with ozone
CN103466865A (en) * 2013-08-29 2013-12-25 中国海洋石油总公司 Ozone and photoelectrocatalysis combined treatment method of reverse osmosis membrane concentrated water in refinery waste water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101492200A (en) * 2009-03-04 2009-07-29 广东工业大学 Method for photoelectrocatalysis oxidization of organic waste water with ozone
CN103466865A (en) * 2013-08-29 2013-12-25 中国海洋石油总公司 Ozone and photoelectrocatalysis combined treatment method of reverse osmosis membrane concentrated water in refinery waste water

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