CN102452766A - Process for treating petrochemical wastewater - Google Patents
Process for treating petrochemical wastewater Download PDFInfo
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- CN102452766A CN102452766A CN2010105191026A CN201010519102A CN102452766A CN 102452766 A CN102452766 A CN 102452766A CN 2010105191026 A CN2010105191026 A CN 2010105191026A CN 201010519102 A CN201010519102 A CN 201010519102A CN 102452766 A CN102452766 A CN 102452766A
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- reverse osmosis
- petrochemical wastewater
- concentrated water
- advanced oxidation
- osmosis concentrated
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Abstract
The invention discloses a process for treating petrochemical wastewater. The process comprises the following steps of: performing reverse osmosis treatment on the petrochemical wastewater to obtain reverse osmosis concentrated water and reverse osmosis clear water; performing advanced oxidation treatment on the reverse osmosis concentrated water; and performing aerobic biological treatment on the reverse osmosis concentrated water subjected to advanced oxidation treatment. By the process for treating the petrochemical wastewater, a multi-process section series-connected treatment method is adopted, the biochemical degradability of the wastewater is improved by an advanced oxidation process, the effect of improving water quality can be relatively effectively achieved through aerobic biological treatment, and the petrochemical wastewater treated by the scheme meets the emission standard.
Description
Technical field
The present invention relates to technical field of waste water processing, relate in particular to a kind of treatment process of high salinity petrochemical wastewater.
Background technology
Petrochemical complex industry is an important industry, and the waste water that produces in the petrochemical production process is the petrochemical wastewater of high salinity, and the characteristics of this waste water are that saltiness is high, not high, the difficult for biological degradation of organic contamination substrate concentration.(COD) is higher for the COD of this waste water, does not meet the standard of sewage discharge, must handle waste water.But, adopt conventional biological treatment can't remove the organic pollutant in this waste water effectively because the organism biodegradability is relatively poor in the petrochemical wastewater of high salinity.
So in field of waste water treatment, be badly in need of wanting a kind of treatment process that can effectively handle the petrochemical wastewater of high salinity.
Summary of the invention
To the petrochemical wastewater of high salinity, the present invention proposes a kind of petrochemical wastewater treatment process that combines osmosis process, advanced oxidation and aerobic biological treatment.
According to the present invention, a kind of petrochemical wastewater treatment process is proposed, comprising:
Petrochemical wastewater is carried out reverse-osmosis treated, obtain reverse osmosis concentrated water and r-o-clear water;
Reverse osmosis concentrated water is carried out advanced oxidation to be handled;
The reverse osmosis concentrated water of handling through advanced oxidation is carried out aerobe to be handled.
Wherein reverse-osmosis treated comprises and utilizes the pressure-driven petrochemical wastewater to see through semi-permeable membranes, wherein has the permeability hole that the aperture is 5～10 dusts on the semi-permeable membranes.
Advanced oxidation is handled and is comprised that the use ozonizer produces ozone, is handled reverse osmosis concentrated water by ozone.In one embodiment, the ozone ozone output of ozonizer is 10g/h, and the ozone concn of generation is 10～60mg/L.Advanced oxidation is handled and is also comprised use UV-irradiation reverse osmosis concentrated water, catalytic oxidation process.
Aerobe is handled and is comprised the use aerobic microbiological, handles the reverse osmosis concentrated water of handling through advanced oxidation such as aerobic bacteria.
Adopt petrochemical wastewater treatment process of the present invention to adopt the placed in-line processing mode of many process sections; Utilize advanced oxidation processes to improve the biodegradability of waste water; Using the aerobe processing can reach the effect of improving water quality more effectively, the petrochemical wastewater of handling through scheme of the present invention meets emission standards.
Description of drawings
Fig. 1 is the schema according to petrochemical wastewater treatment process of the present invention.
Fig. 2 is the schema according to the middle-and-high-ranking oxide treatment of petrochemical wastewater treatment process of the present invention.
Embodiment
With reference to shown in Figure 1, the present invention has disclosed a kind of petrochemical wastewater treatment process, comprises following step:
S101. petrochemical wastewater is carried out reverse-osmosis treated, obtain reverse osmosis concentrated water and r-o-clear water.R-o-is a kind of reverse locomotory movement of infiltration, is a kind of separation method that under pressure-driven, by means of the selection crown_interception of semi-permeable membranes solute in the solution and solvent is separated.Reverse osmosis process can be with Impurity removals such as the mineral ion in the former water, bacterium, virus, organism and colloids.In one embodiment, the reverse-osmosis treated of step S101 comprises utilizes the pressure-driven petrochemical wastewater to see through semi-permeable membranes, wherein has the permeability hole that the aperture is 5～10 dusts on the semi-permeable membranes.The r-o-clear water that obtains among the step S101 is the higher water of purity, can directly reclaim, and reverse osmosis concentrated water need further be handled.
S102. reverse osmosis concentrated water being carried out advanced oxidation handles.Because the reverse osmosis concentrated water biodegradability that reverse osmosis process obtains is relatively poor, directly carries out the biochemical treatment poor effect, therefore at first reverse osmosis concentrated water is carried out advanced oxidation and handle.In one embodiment, advanced oxidation is handled and is comprised following step, and with reference to shown in Figure 2: S201. uses ozonizer to produce ozone, by ozone reverse osmosis concentrated water is handled.In one embodiment, the ozone ozone output of ozonizer is 10g/h, and the ozone concn of generation is 10～60mg/L.S202. use the UV-irradiation reverse osmosis concentrated water, catalytic oxidation process.In one embodiment, use wavelength 365nm, the uv lamp of power 125W carries out catalyzed oxidation.The comprehensive technology that adopts ozone and ultraviolet catalytic oxidation can be carried out advanced oxidation to reverse osmosis concentrated water effectively and handled, and improves biodegradability.
S103. the reverse osmosis concentrated water of handling through advanced oxidation being carried out aerobe handles.After handling through advanced oxidation; The biodegradability of reverse osmosis concentrated water is significantly improved; Make good use of oxygen animalcule this moment again, for example aerobic bacteria is handled the reverse osmosis concentrated water of handling through advanced oxidation, the biological purification of the oxygen animalcule of can bringing into play effectively; Improve water quality, make reverse osmosis concentrated water also reach emission standards.
Adopt petrochemical wastewater treatment process of the present invention to adopt the placed in-line processing mode of many process sections; Utilize advanced oxidation processes to improve the biodegradability of waste water; Using the aerobe processing can reach the effect of improving water quality more effectively, the petrochemical wastewater of handling through scheme of the present invention meets emission standards.
Claims (6)
1. a petrochemical wastewater treatment process is characterized in that, comprising:
Petrochemical wastewater is carried out reverse-osmosis treated, obtain reverse osmosis concentrated water and r-o-clear water;
Reverse osmosis concentrated water is carried out advanced oxidation to be handled;
The reverse osmosis concentrated water of handling through advanced oxidation is carried out aerobe to be handled.
2. petrochemical wastewater treatment process as claimed in claim 1 is characterized in that, said reverse-osmosis treated comprises utilizes the pressure-driven petrochemical wastewater to see through semi-permeable membranes, wherein has the permeability hole that the aperture is 5～10 dusts on the semi-permeable membranes.
3. petrochemical wastewater treatment process as claimed in claim 1 is characterized in that, said advanced oxidation is handled and comprised that the use ozonizer produces ozone, is handled reverse osmosis concentrated water by ozone.
4. petrochemical wastewater treatment process as claimed in claim 3 is characterized in that, the ozone ozone output of said ozonizer is 10g/h, and the ozone concn of generation is 10～60mg/L.
5. like the said petrochemical wastewater treatment process of claim 3, it is characterized in that said advanced oxidation is handled and also comprised use UV-irradiation reverse osmosis concentrated water, catalytic oxidation process.
6. petrochemical wastewater treatment process as claimed in claim 1 is characterized in that, said aerobe is handled and comprised the reverse osmosis concentrated water that uses aerobic microbiological to handle the processing of process advanced oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105191026A CN102452766A (en) | 2010-10-26 | 2010-10-26 | Process for treating petrochemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105191026A CN102452766A (en) | 2010-10-26 | 2010-10-26 | Process for treating petrochemical wastewater |
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| CN102452766A true CN102452766A (en) | 2012-05-16 |
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| CN2010105191026A Pending CN102452766A (en) | 2010-10-26 | 2010-10-26 | Process for treating petrochemical wastewater |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102045A (en) * | 2013-01-16 | 2013-05-15 | 武汉千水环境工程技术有限公司 | System for treating waste water from production of carbon fiber |
| CN104261620A (en) * | 2014-09-26 | 2015-01-07 | 江苏省海安石油化工厂 | Petrochemical wastewater treatment method |
| CN104909499A (en) * | 2015-06-10 | 2015-09-16 | 上海化学工业区中法水务发展有限公司 | Petrochemical wastewater secondary effluent treatment method |
| CN105541015A (en) * | 2015-12-28 | 2016-05-04 | 哈尔滨工业大学 | Oxidation-A/O biological treatment method for nanofiltration concentrated solution |
| CN108117221A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of processing method of reverse osmosis concentrated water |
| CN109133487A (en) * | 2017-06-16 | 2019-01-04 | 江苏立业环境科技有限公司 | A kind of petrochemical wastewater treatment process |
-
2010
- 2010-10-26 CN CN2010105191026A patent/CN102452766A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102045A (en) * | 2013-01-16 | 2013-05-15 | 武汉千水环境工程技术有限公司 | System for treating waste water from production of carbon fiber |
| CN104261620A (en) * | 2014-09-26 | 2015-01-07 | 江苏省海安石油化工厂 | Petrochemical wastewater treatment method |
| CN104909499A (en) * | 2015-06-10 | 2015-09-16 | 上海化学工业区中法水务发展有限公司 | Petrochemical wastewater secondary effluent treatment method |
| CN105541015A (en) * | 2015-12-28 | 2016-05-04 | 哈尔滨工业大学 | Oxidation-A/O biological treatment method for nanofiltration concentrated solution |
| CN108117221A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of processing method of reverse osmosis concentrated water |
| CN108117221B (en) * | 2016-11-29 | 2021-01-05 | 中国石油化工股份有限公司 | Treatment method of reverse osmosis concentrated water |
| CN109133487A (en) * | 2017-06-16 | 2019-01-04 | 江苏立业环境科技有限公司 | A kind of petrochemical wastewater treatment process |
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Application publication date: 20120516 |