CN103204606A - Advanced treatment process for treating complex waste water of super-heavy oil - Google Patents
Advanced treatment process for treating complex waste water of super-heavy oil Download PDFInfo
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- CN103204606A CN103204606A CN2013100972526A CN201310097252A CN103204606A CN 103204606 A CN103204606 A CN 103204606A CN 2013100972526 A CN2013100972526 A CN 2013100972526A CN 201310097252 A CN201310097252 A CN 201310097252A CN 103204606 A CN103204606 A CN 103204606A
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Abstract
The invention relates to the technical field of treatment for sewage of heavy oil of oil fields, in particular to an advanced treatment process for treating complex waste water of super-heavy oil. The process includes steps of firstly, performing demulsification and physico-chemical pretreatment for the complex waste water of the super-heavy oil, and then cooling the complex waste water of the super-heavy oil until the temperature of the complex waste water ranges from 35 DEG C to 40 DEG C; secondly, biologically degrading the cooled waste water by a anaerobic treatment and aerobic treatment combined technology; thirdly, adsorbing the waste water treated in the second step by fresh adsorbents and controlling a COD (chemical oxygen demand) index of yielded water so that the COD index is lower than or equal to 50mg/L; fourthly, adsorbing the complex waste water of the super-heavy oil by the unsaturated adsorbents used in the third step after the complex waste water is subjected to demulsification and physico-chemical pretreatment; and fifthly, cooling the waste water treated in the fourth step until the temperature of the waste water ranges from 35 DEG C to 40 DEG C, and then repeatedly performing the second step, the third step and the fourth step. The advanced treatment process has the advantages of high pollutant removal rate, low service cost and capabilities of reducing biochemical treatment load and increasing adsorbent utilization rate.
Description
Technical field:
The present invention relates to a kind of oil-field thick-oil technical field of sewage, particularly a kind of advanced treatment process of handling complicated ultra-thick oil waste water.
Background technology:
The oily(waste)water that complicated ultra-thick oil waste water is mainly separated by super viscous crude extraction fluid dewatering, SAGD oil (SAGD) waste water, the tail water of advanced treatment and reclamation boiler (comprises dross dehydration, filter dense water, ion-exchange waste water etc.), formations such as washing oil pipe water and other waste water, the various tensio-active agents that contain the natural and artificial interpolation of a large amount of difficult for biological degradation, through oil removing (rp demulsification) pre-treatment, air supporting/flocculation materialization processing and biological process are handled the main control index of back water outlet COD still up to 120mg/L, also need further to carry out advanced treatment and can reach COD smaller or equal to the emission standard of 50mg/L.
The advanced treatment technology of thick-oil waste water bio-chemical effluent has advanced oxidation processes, absorption method and wetland method at present, the high and generation secondary pollution of advanced oxidation processes running cost; Wetland is handled and to be subjected to weather effect big, winter weak effect, and investment is high, floor space is big; Absorption method is to realize sewage major technique up to standard fast, the running cost height but traditional sorbent material such as cocoanut active charcoal adsorptive capacity are big, and the sorbent material price of coal mass active carbon and other types is low but adsorptive capacity is little, and pollutants removal rate is low.
Summary of the invention:
The technical problem to be solved in the present invention provides a kind of advanced treatment process of handling complicated ultra-thick oil waste water, and this technology has realized reduction biochemical treatment load, and the pollutants removal rate height improves the sorbent material utilization ratio, and use cost is low.Adsorptive capacity is little when having overcome existing absorption method advanced treatment technology and adopting the coal mass active carbon sorbent material, the deficiency that pollutants removal rate is low.
The technical solution used in the present invention is: a kind of advanced treatment process of handling complicated ultra-thick oil waste water, and this processing step is as follows:
One, will be cooled to 35-40 ℃ through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment;
Two, adopt anaerobic treatment and aerobic treatment combination technology biological degradation through the waste water after the cooling process;
Three, will carry out adsorption treatment by fresh adsorbent through the waste water after the step 2 processing, and control effluent index COD is smaller or equal to 50mg/L;
Four, will close sorbent material by satisfying after using in the step 3 through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment and carry out adsorption treatment;
Five, will be cooled to 35-40 ℃ through the waste water after the step 4 processing, then repeating step two, three, four;
Six, used saturated sorbent material is fully carried out manipulation of regeneration or the use that directly acts as a fuel.
Described sorbent material adopts the one or more combination in brown coal activated coke, brown coal gac, the bamboo charcoal.
Described anaerobic treatment and aerobic treatment combination technology are a kind of technology or several process combination of immobilized microorganism BAF, acidication-catalytic oxidation, activated sludge process, membrane bioreactor method.
The invention has the beneficial effects as follows: the present invention comes water to carry out the mode that primary sorption is handled earlier to biochemistry in used unsaturated sorbent material owing to having adopted, thereby have and reduce the biochemical treatment load, the pollutants removal rate height improves sorbent material utilization ratio and the low advantage of use cost.
Embodiment:
A kind of advanced treatment process of handling complicated ultra-thick oil waste water, this processing step is as follows:
One, will be cooled to 35-40 ℃ through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment;
Two, adopt anaerobic treatment and aerobic treatment combination technology biological degradation through the waste water after the cooling process;
Three, will carry out adsorption treatment by fresh adsorbent through the waste water after the step 2 processing, and control effluent index COD is smaller or equal to 50mg/L;
Four, will close sorbent material by satisfying after using in the step 3 through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment and carry out adsorption treatment;
Five, will be cooled to 35-40 ℃ through the waste water after the step 4 processing, then repeating step two, three, four;
Six, used saturated sorbent material is fully carried out manipulation of regeneration or the use that directly acts as a fuel.
Above-mentioned sorbent material adopts the one or more combination in brown coal activated coke, brown coal gac, the bamboo charcoal.
Above-mentioned anaerobic treatment and aerobic treatment combination technology are a kind of technology or several process combination of immobilized microorganism BAF, acidication-catalytic oxidation, activated sludge process, membrane bioreactor method.
Be understandable that, more than about specific descriptions of the present invention, only for the present invention being described and being not to be subject to the described technical scheme of the embodiment of the invention, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.
Claims (3)
1. advanced treatment process of handling complicated ultra-thick oil waste water, it is characterized in that: this processing step is as follows:
One, will be cooled to 35-40 ℃ through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment;
Two, adopt anaerobic treatment and aerobic treatment combination technology biological degradation through the waste water after the cooling process;
Three, will carry out adsorption treatment by fresh adsorbent through the waste water after the step 2 processing, and control effluent index COD is smaller or equal to 50 mg/L;
Four, will close sorbent material by satisfying after using in the step 3 through the complicated ultra-thick oil waste water after breakdown of emulsion and the physico-chemical pretreatment and carry out adsorption treatment;
Five, will be cooled to 35-40 ℃ through the waste water after the step 4 processing, then repeating step two, three, four;
Six, used saturated sorbent material is fully carried out manipulation of regeneration or the use that directly acts as a fuel.
2. according to the advanced treatment process of the complicated ultra-thick oil waste water of the described processing of claim 1, it is characterized in that: described sorbent material adopts the one or more combination in brown coal activated coke, brown coal gac, the bamboo charcoal.
3. according to the advanced treatment process of the complicated ultra-thick oil waste water of the described processing of claim 1, it is characterized in that: described anaerobic treatment and aerobic treatment combination technology are a kind of technology or several process combination of immobilized microorganism BAF, acidication-catalytic oxidation, activated sludge process, membrane bioreactor method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310097252.6A CN103204606B (en) | 2013-03-25 | 2013-03-25 | Advanced treatment process for treating complex waste water of super-heavy oil |
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| CN201310097252.6A CN103204606B (en) | 2013-03-25 | 2013-03-25 | Advanced treatment process for treating complex waste water of super-heavy oil |
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| CN103204606A true CN103204606A (en) | 2013-07-17 |
| CN103204606B CN103204606B (en) | 2014-03-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103601340A (en) * | 2013-11-19 | 2014-02-26 | 天津中油科远石油工程有限责任公司 | Viscous-oil wastewater treating method |
| CN103992007A (en) * | 2014-05-16 | 2014-08-20 | 宁波市恒洁水务发展有限公司 | Refractory thick oil type sewage treatment method and system |
| CN104445841A (en) * | 2014-12-31 | 2015-03-25 | 上海发凯化工有限公司 | Treatment device and treatment process for surfactant waste water |
| CN104556531A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Oil filed sewage treatment method for preparing oil-production polymer solution |
| CN108557829A (en) * | 2018-06-28 | 2018-09-21 | 湖南荣岚智能科技有限公司 | A kind of preparation method of high heat stability silica-based aerogel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DK275280A (en) * | 1979-06-28 | 1980-12-29 | Voest Alpine Ag | PROCEDURES FOR DISSOLUTION AND PROCESSING OF EMULSIONS OF OILS AND FATS |
| CN1367146A (en) * | 2002-03-07 | 2002-09-04 | 吴振庭 | Method for controlling oil-bearing waste water |
| WO2004030788A2 (en) * | 2002-10-07 | 2004-04-15 | Mol Hungarian Oil And Gas Co. | Biochemical method for the treatment and prevention of emulsions in oil-wells and on surface equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556531A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Oil filed sewage treatment method for preparing oil-production polymer solution |
| CN104556531B (en) * | 2013-10-12 | 2017-06-30 | 中国石油化工股份有限公司 | A kind of process for treating oil field sewage for preparing oil recovery polymer solution |
| CN103601340A (en) * | 2013-11-19 | 2014-02-26 | 天津中油科远石油工程有限责任公司 | Viscous-oil wastewater treating method |
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| CN103992007B (en) * | 2014-05-16 | 2015-04-15 | 宁波市恒洁水务发展有限公司 | Refractory thick oil type sewage treatment method and system |
| CN104445841A (en) * | 2014-12-31 | 2015-03-25 | 上海发凯化工有限公司 | Treatment device and treatment process for surfactant waste water |
| CN108557829A (en) * | 2018-06-28 | 2018-09-21 | 湖南荣岚智能科技有限公司 | A kind of preparation method of high heat stability silica-based aerogel |
| CN108557829B (en) * | 2018-06-28 | 2021-08-03 | 湖南荣岚智能科技有限公司 | Preparation method of high-thermal-stability silicon-based aerogel |
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| CN103204606B (en) | 2014-03-12 |
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