CN101050035A - Method for treating wastewater of containing oil by using electron beam irradiation - Google Patents
Method for treating wastewater of containing oil by using electron beam irradiation Download PDFInfo
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- CN101050035A CN101050035A CN 200710038788 CN200710038788A CN101050035A CN 101050035 A CN101050035 A CN 101050035A CN 200710038788 CN200710038788 CN 200710038788 CN 200710038788 A CN200710038788 A CN 200710038788A CN 101050035 A CN101050035 A CN 101050035A
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Abstract
This invention relates to a method for treating oil-containing wastewater produced by oil refinery by electron beam irradiation. The method adopts a combination of carbon nanotube adsorption and electron beam irradiation to treat oil-containing wastewater. The energy of the accelerated electrons by the accelerator is 0.7-0.9 MeV. The electron beam current intensity is 9-11 mA. The treatment time is 60-120 s. Aeration is also adopted during electron beam irradiation. After treatment, wastewater is precipitated and discharged, and carbon nanotubes are precipitated and recovered or recycled. The method has such advantages as simple process, easy operation, and high removal rate of organic matters (higher than 99%). The treated wastewater has reduced toxicity, and can meet state discharge standards.
Description
Technical field
The present invention relates to a kind of method of handling the oily(waste)water that produces in the oil refining process, mainly is the technology of handling by electron irradiation, belongs to wastewater treatment and environmental protection technical field.
Background technology
Oily(waste)water is the waste water that produces in oil refining process, and its principal feature is:
1, the COD value is very high, and COD mean value is about 15000～20000mg/L, and is more than the Gao Shida 30000mg/L.
2, organism in the waste water and inorganics are of a great variety, and composition is quite complicated.
3, the poison type of harm microorganism is many, individual event poisonous substance severe overweight, and under extreme case, toluene level reaches 3797mg/L, and epoxy chloropropane content is 19250mg/L, and cyclohexanone is 4593mg/L.
4, in the waste water ratio of BOD5/COD usually about 0.40, lower sometimes.
The treatment process of oily(waste)water is divided into two classes basically at present:
1, the method that adopts A/O method (anoxic/aerobic) to combine is handled oil refining pipeline recoil water.This method processing cost is low, but because oily(waste)water is intermittent discharging, making up this equipment can not effectively utilize.
2., with coagulating agent coagulating treatment oily(waste)water.This method cost is higher, and can produce a large amount of solid waste, thereby produces secondary pollution.
In order to seek a more suitably treatment process of oily(waste)water, we both can obtain more excellent effect and also can help environment protection having done some research work aspect the employing electronic beam irradiation technology.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing the processing oily(waste)water that electron beam irradiation and carbon nanotube adsorption combine.
A kind of method of handling the oily(waste)water that produces in the oil refining process of the present invention is characterized in that having following treating processes and step:
A. at first will join as the multi-walled carbon nano-tubes of sorbent material in the oily(waste)water to be processed, and stir, and to regulate its pH value be 9～10;
B. the oily(waste)water average rate is passed through irradiation device for electronic accelerator; The energy of accelerator accelerated electron is 0.7～0.9MeV, and electronic beam current intensity is 9～11mA, and the treatment time is 60～120 seconds; When irradiation, be attended by aeration simultaneously and seethe generation;
C. the waste water after the radiation treatment is discharged through post precipitation, and carbon nanotube uses through the post precipitation recirculation that can reclaim or reflux.
Utilize electron beam irradiation to handle the treatment unit of oily(waste)water method, this treatment unit includes inlet pipe, rumbatron, settling tank, carbon nanotube return line and the radiation treatment container that adds carbon nanotube and oily(waste)water; It is characterized in that: the inlet pipe of carbon nanotube and oily(waste)water and radiation treatment container, settling tank, carbon nanotube return line are by the common round-robin piping system that is connected to form; Rumbatron be located immediately at the radiation treatment container directly over, direct irradiated electrons beam energy, the top that is located at the settling tank of device tail end is provided with outlet pipe, treated good waste water is discharged by this spout overflow; And carbon nanotube is deposited in the bottom of settling tank, is back to the device front end through the carbon nanotube return line and recycles.
The principle of the inventive method is: because the present invention utilizes the method for the processing oily(waste)water that carbon nanotube adsorption and electron beam irradiation combine, electron beam is the high-energy electromagnetic radiation that is produced by rumbatron, and the energy by controlling electron beam can make the penetration power of electronics reach service requirements.Ionizing rays makes water decomposition produce hydroxyl radical free radical, hydroperoxyl radical and hydrated electron, they with oily(waste)water in organic substance generation oxidizing reaction and start degradation of organic substances, raising waste water can biochemical purpose.Utilize the high-specific surface area and the strong absorption property of carbon nanotube that pollutants in waste water is carried out adsorption treatment simultaneously; The organic substance reaction of active particle and carbon nanotube adsorption makes it progressively to resolve into harmless water molecules, carbonic acid gas and some organic water moleculess; Simultaneously carbon nanotube is also played regeneration.
The advantage and the effect of the inventive method are: technology is simple, easy to operate, but the industrial treatment oily(waste)water reduces wastewater toxicity, is specially adapted to the organism of the difficult oxidative degradation of oxidation, organic clearance is reached more than 99%, and waste water reaches discharging standards.
Description of drawings
Fig. 1 is an oily(waste)water electron beam irradiation treatment unit synoptic diagram of the present invention.
Embodiment
After now embodiments of the invention specifically being described in.
Embodiment 1
At first will join as the multi-walled carbon nano-tubes of sorbent material in the oily(waste)water to be processed, stir, and regulate its pH value to 10, subsequently the oily(waste)water average rate be passed through irradiation device for electronic accelerator; The energy of accelerator accelerated electron is 0.8MeV, and electronics speed intensity of flow is 10mA, and the treatment time is 60 seconds; Be attended by aeration simultaneously at irradiation and seethe generation; Waste water after the radiation treatment is discharged through post precipitation, and carbon nanotube uses through the post precipitation recirculation that can reclaim or reflux.
Referring to Fig. 1, Fig. 1 is an oily(waste)water electron beam irradiation treatment unit synoptic diagram.This device includes inlet pipe 1, rumbatron 2, settling tank 3, carbon nanotube return line 4 and the radiation treatment container 5 that adds carbon nanotube and oily(waste)water; Inlet pipe 1 and radiation treatment container 5, settling tank 3, the carbon nanotube return line 4 of carbon nanotube and oily(waste)water form a round-robin piping system by pipe connection; Rumbatron 2 be located immediately at radiation treatment container 5 directly over, direct radiation electronic beam current energy; The top that is located at the settling tank 3 of device tail end does not have outlet pipe, and treated good waste water is discharged by this spout overflow; And carbon nanotube is deposited in the bottom of settling tank 3, is back to the device front end through carbon nanotube return line 4 and recycles.
In the present embodiment, be the waste water of 30000mg/L at oily(waste)water COD value, after above-mentioned processing, after testing, wherein organic removal rate can reach more than 99%, reaches discharging standards.
Claims (2)
1. the method for an oily(waste)water of handling to produce in the oil refining process is characterized in that having following treating processes and step:
A. at first will join as the multi-walled carbon nano-tubes of sorbent material in the oily(waste)water to be processed, and stir, and to regulate its pH value be 9～10;
B. the oily(waste)water average rate is passed through irradiation device for electronic accelerator; The energy of accelerator accelerated electron is 0.7～0.9MeV, and electronic beam current intensity is 9～11mA, and the treatment time is 60～120 seconds; When irradiation, be attended by aeration simultaneously and seethe generation;
C. the waste water after the radiation treatment is discharged through post precipitation, and carbon nanotube uses through the post precipitation recirculation that can reclaim or reflux.
2. the described a kind of treatment unit that utilizes electron beam irradiation to handle the oily(waste)water method of claim 1, this treatment unit includes inlet pipe (1), rumbatron (2), settling tank (3), carbon nanotube return line (4) and the radiation treatment container (5) that adds carbon nanotube and oily(waste)water; It is characterized in that: inlet pipe of carbon nanotube and oily(waste)water (1) and radiation treatment container (5), settling tank (3), carbon nanotube return line (4) are by the common round-robin piping system that is connected to form; Rumbatron (2) be located immediately at radiation treatment container (5) directly over, direct irradiated electrons beam energy, the top that is located at the settling tank (3) of device tail end is provided with outlet pipe, treated good waste water is discharged by this spout overflow; And carbon nanotube is deposited in the bottom of settling tank (3), is back to the device front end through carbon nanotube return line (4) and recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710038788 CN101050035A (en) | 2007-03-29 | 2007-03-29 | Method for treating wastewater of containing oil by using electron beam irradiation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710038788 CN101050035A (en) | 2007-03-29 | 2007-03-29 | Method for treating wastewater of containing oil by using electron beam irradiation |
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| CN101050035A true CN101050035A (en) | 2007-10-10 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560031B (en) * | 2009-05-26 | 2012-05-02 | 上海大学 | Method for radiation treatment of chloromycetin wastewater |
| CN102491570A (en) * | 2011-11-30 | 2012-06-13 | 黑龙江省科学院技术物理研究所 | Method of treating municipal sewage by using high energy electron beams |
| CN102616880A (en) * | 2012-03-09 | 2012-08-01 | 清华大学 | Irradiation reactor for continuously treating industrial wastewater under cooperation of electron accelerator, and method for irradiation reactor |
| CN103482718A (en) * | 2013-09-13 | 2014-01-01 | 上海大学 | Method for degrading dienestrol in water body through electron beam irradiation |
| CN103754981A (en) * | 2014-01-02 | 2014-04-30 | 上海大学 | Method for removing biotoxicity of estrogen in water body and electronic beam radiation water treatment device |
| CN105174352A (en) * | 2015-09-10 | 2015-12-23 | 中国石油大学(华东) | Method of recyclably and efficiently treating petroleum-polluted wastewater |
| CN115353250A (en) * | 2022-08-18 | 2022-11-18 | 浙江翔和环保工程有限公司 | Electrocatalytic oxidation wastewater treatment system |
-
2007
- 2007-03-29 CN CN 200710038788 patent/CN101050035A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560031B (en) * | 2009-05-26 | 2012-05-02 | 上海大学 | Method for radiation treatment of chloromycetin wastewater |
| CN102491570A (en) * | 2011-11-30 | 2012-06-13 | 黑龙江省科学院技术物理研究所 | Method of treating municipal sewage by using high energy electron beams |
| CN102491570B (en) * | 2011-11-30 | 2014-04-02 | 黑龙江省科学院技术物理研究所 | Method of treating municipal sewage by using high energy electron beams |
| CN102616880A (en) * | 2012-03-09 | 2012-08-01 | 清华大学 | Irradiation reactor for continuously treating industrial wastewater under cooperation of electron accelerator, and method for irradiation reactor |
| CN103482718A (en) * | 2013-09-13 | 2014-01-01 | 上海大学 | Method for degrading dienestrol in water body through electron beam irradiation |
| CN103754981A (en) * | 2014-01-02 | 2014-04-30 | 上海大学 | Method for removing biotoxicity of estrogen in water body and electronic beam radiation water treatment device |
| CN105174352A (en) * | 2015-09-10 | 2015-12-23 | 中国石油大学(华东) | Method of recyclably and efficiently treating petroleum-polluted wastewater |
| CN115353250A (en) * | 2022-08-18 | 2022-11-18 | 浙江翔和环保工程有限公司 | Electrocatalytic oxidation wastewater treatment system |
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