CN101028960B - Method for pre-treating seawater by flow-raising aeration biological filtering pool - Google Patents
Method for pre-treating seawater by flow-raising aeration biological filtering pool Download PDFInfo
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- CN101028960B CN101028960B CN2006101299158A CN200610129915A CN101028960B CN 101028960 B CN101028960 B CN 101028960B CN 2006101299158 A CN2006101299158 A CN 2006101299158A CN 200610129915 A CN200610129915 A CN 200610129915A CN 101028960 B CN101028960 B CN 101028960B
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- seawater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
A process for pre-treating seawater by up-flow aerating biologic filter pool includes such steps as depositing sand, fast filtering, filtering in a aerating biologic filter pool, and further filtering.
Description
Technical field:
The invention belongs to the method for in a kind of desalting process seawater being carried out pre-treatment or high salinity sewage is handled, particularly a kind of method of utilizing flow lifting type BAF pre-treating seawater or high salinity sewage being handled.
Background technology:
China's desalination technology is increasingly mature at present, and reverse osmosis (RO) desalination process has progressively become the dominant technology of sea water desaltination.The key of its technology is a reverse osmosis membrane, though the production of film and assembly is quite ripe, but have only 5 years the mean life of film, and this is a major reason that causes the sea water desaltination processing cost higher, and the film pollution is to cause film short major cause in work-ing life.It is decelerating membrane pollution, the work-ing life that prolongs film that seawater is carried out pre-treatment, guarantees the key of reverse osmosis system operation steady in a long-term.Pre-treatment mainly is to remove suspended substance, organism, colloidalmaterial, microorganism, bacterium and some objectionable impurities (as iron, manganese, calcium etc.), and the influent quality that different raw water qualities and film require has determined pretreatment technology.
At present both at home and abroad reverse osmosis seawater desalting engineering pretreatment technology scheme is mostly at removing turbidity, traditional technology has similar technologies such as coagulating sedimentation filtration, but for the more serious seawater of organic contamination, particularly the solvability organic pollutant accounts under the situation of significant proportion, and it is very limited removing organic pollutant by coagulating sedimentation merely.Therefore, for the more serious seawater of organic contamination, the key of its desalting engineering is to seek suitable pretreatment technology route, strengthens the removal of organic pollutant.This class research at present is less, also rare this case history.
BAF is a kind of of microbial film treatment process.Adopt a kind of very particulate filter of bigger serface that has of rough porous, the filter material surface growth has microbial film, and aeration is provided at the bottom of the pond, and during the effluent stream filter bed, pollutent at first is filtered and adsorbs, and then is decomposed by the microbiological oxidation of filter material surface.This technology is widely used in fields such as small-scale Hospital Sewage Treatment engineering, middle water treatment and tap water pre-treatment, does not also utilize at present the BAF technology to carry out the engineering report of sea water preprocessing or high salinity sewage disposal.
Summary of the invention:
Purpose of the present invention just is to provide a kind of method of utilizing flow lifting type BAF pre-treating seawater or high salinity sewage disposal, and this method can be removed the organic pollutant in seawater or the high salinity sewage etc.
Technical scheme of the present invention is: a kind of method of utilizing flow lifting type BAF pre-treating seawater or handling high salinity sewage is characterized in that; Finish according to the following step: 1. sand setting, promptly remove macrobead inorganics and silt particle in seawater or the high salinity sewage; 2. filter fast (rapid filter), soon can't further remove by the suspended matter that filtrate stops up that easily causes that the sand setting process is removed; 3. the seawater behind shakeout and the suspended substance or sewage are passed into to stop in the BAF and carried out for the 3rd step and handle; 4. seawater or sewage after will handling through BAF further filter again, remove the resistates of carrying secretly in the water outlet that can pass through the filtration removal, water outlet.
The hydraulic detention time HRT of above-mentioned BAF is 1～6 hour, and gas-water ratio is 0.5: 1～5: 1.
Advantage of the present invention is: 1, effluent quality is good.Adopt BAF to seawater or high salinity sewage handle not only suspended matter, colloidalmaterial that can be wherein, the biological flora of biological unit loss is got rid of, and solvability organic pollutant removal wherein can be fallen, for next step carries out sea water desaltination or sewage discharge is laid a solid foundation.2, the hydraulic detention time HRT with BAF designed between 1～6 hour, made BAF have good organic matter removal effect.3, adopt BAF to make the utilising efficiency of oxygen can reach 20～30%, aeration rate is starkly lower than general bioremediation.4, capacity of resisting impact load is strong, no sludge bulking problem.5, simple, the easy row of processing method.6, owing to the employing BAF, so floor space is little, easily realize integrated and automatization, and running cost is low.
Embodiment:
Embodiment 1: handle the seawater that contains low-concentration organic.Finish according to the following step: 1. sand setting, promptly remove macrobead inorganics and silt particle in the seawater; 2. filter fast (rapid filter), soon can't further remove by the suspended matter that filtrate stops up that easily causes that the sand setting process is removed; 3. the seawater behind shakeout and the suspended substance is passed into to stop in the BAF and carries out the processing of the 3rd step, it is filtrate that this BAF adopts granular filler; 4. the seawater after will handling through BAF further filters water outlet again.The hydraulic detention time HRT of above-mentioned BAF is 4～6 hours, and gas-water ratio is about 0.5: 1.Adopt this processing method, can remove suspended substance in the seawater, colloidalmaterial, solvability organic pollutant, microorganism, bacterium, ammonia nitrogen etc. effectively.
Embodiment 2: handle the seawater that contains high-enriched organics.Finish according to the following step: 1. sand setting, promptly remove macrobead inorganics and silt particle in the seawater; 2. filter fast (rapid filter), soon can't further remove by the suspended matter that filtrate stops up that easily causes that the sand setting process is removed; 3. the seawater behind shakeout and the suspended substance is passed into to stop in the BAF and carries out the processing of the 3rd step, it is filtrate that this BAF adopts granular filler; 4. the seawater after will handling through BAF further filters water outlet again.The hydraulic detention time HRT of above-mentioned BAF is 2～4 hours, and gas-water ratio is about 1: 1.Adopt this processing method, can remove suspended substance in the seawater, solvability organic pollutant, colloidalmaterial, microorganism, bacterium, ammonia nitrogen etc. effectively.
Embodiment 3: handle the high salinity sewage that contains high-enriched organics.Finish according to the following step: 1. sand setting, promptly remove macrobead inorganics and silt particle in the sewage; 2. filter fast (rapid filter), soon can't further remove by the suspended matter that filtrate stops up that easily causes that the sand setting process is removed; 3. the sewage behind shakeout and the suspended substance is passed into to stop in the BAF and handles, it is filtrate that this BAF adopts granular filler; 4. the seawater after will handling through BAF further filters water outlet again.The hydraulic detention time HRT of above-mentioned BAF is 2～4 hours, and gas-water ratio is about 2: 1.Adopt this processing method, can remove suspended substance in the seawater, solvability organic pollutant, colloidalmaterial, microorganism, bacterium, ammonia nitrogen etc. effectively.
Claims (2)
1. the method utilizing flow lifting type BAF pre-treating seawater or handle high salinity sewage is characterized in that; Finish according to the following step: 1. sand setting, promptly remove macrobead inorganics and silt particle in seawater or the high salinity sewage; 2. rapid filter filters fast, soon can't further remove by the suspended matter that filtrate stops up that easily causes that the sand setting process is removed; 3. the seawater behind shakeout and the suspended substance or sewage are passed into to stop in the BAF and carried out for the 3rd step and handle; 4. seawater or sewage after will handling through BAF further filter again, remove the resistates of carrying secretly in the water outlet that can pass through the filtration removal, water outlet.
2. the method for utilizing flow lifting type BAF pre-treating seawater or handling high salinity sewage according to claim 1, it is characterized in that: the hydraulic detention time HRT of above-mentioned BAF is 1～6 hour, gas-water ratio is 0.5: 1～5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101299158A CN101028960B (en) | 2006-12-07 | 2006-12-07 | Method for pre-treating seawater by flow-raising aeration biological filtering pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101299158A CN101028960B (en) | 2006-12-07 | 2006-12-07 | Method for pre-treating seawater by flow-raising aeration biological filtering pool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028960A CN101028960A (en) | 2007-09-05 |
| CN101028960B true CN101028960B (en) | 2010-09-29 |
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| CN2006101299158A Active CN101028960B (en) | 2006-12-07 | 2006-12-07 | Method for pre-treating seawater by flow-raising aeration biological filtering pool |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896455B (en) * | 2014-03-28 | 2015-10-14 | 北京北控海创科技有限公司 | A kind of biological pre-treatment process for sea-water reverse osmose method |
| CN103964645B (en) * | 2014-05-19 | 2015-10-07 | 哈尔滨工业大学 | A kind of integrated deep water treatment device |
| CN106630400A (en) * | 2016-12-02 | 2017-05-10 | 黑龙江东部节水设备有限公司 | Drinking water aeration treatment device |
| CN108226400A (en) * | 2018-01-24 | 2018-06-29 | 上海华严检测技术有限公司 | A kind of biological activated carbon filter runs appraisal procedure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587114A (en) * | 2004-07-08 | 2005-03-02 | 上海大学 | Liquid flow type capacitance pretreatment method for sea water desalination |
| CN1600704A (en) * | 2003-09-26 | 2005-03-30 | 国家海洋局天津海水淡化与综合利用研究所 | Method of biological reaction of membrane for treating sewage of containing salt |
| CN1613786A (en) * | 2004-10-28 | 2005-05-11 | 王建中 | Pretreating method for reversing asmose seawater desalinating pulsing electromagnetic field |
| CN1673100A (en) * | 2005-03-25 | 2005-09-28 | 池万清 | Pre-treating method and apparatus for desalting sea water |
-
2006
- 2006-12-07 CN CN2006101299158A patent/CN101028960B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600704A (en) * | 2003-09-26 | 2005-03-30 | 国家海洋局天津海水淡化与综合利用研究所 | Method of biological reaction of membrane for treating sewage of containing salt |
| CN1587114A (en) * | 2004-07-08 | 2005-03-02 | 上海大学 | Liquid flow type capacitance pretreatment method for sea water desalination |
| CN1613786A (en) * | 2004-10-28 | 2005-05-11 | 王建中 | Pretreating method for reversing asmose seawater desalinating pulsing electromagnetic field |
| CN1673100A (en) * | 2005-03-25 | 2005-09-28 | 池万清 | Pre-treating method and apparatus for desalting sea water |
Non-Patent Citations (2)
| Title |
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| 何洁等.3种载体生物滤器对养殖废水处理效果.中国水产科学10 3.2003,10(3),241,243-245. |
| 何洁等.3种载体生物滤器对养殖废水处理效果.中国水产科学10 3.2003,10(3),241,243-245. * |
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| CN101028960A (en) | 2007-09-05 |
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Address after: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee after: NORTH CHINA MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee before: North China Municipal Engineering Design & Research Institute Address after: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee after: NORTH CHINA MUNICIPAL ENGINEERING DESIGN & Research Institute Address before: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99 Patentee before: North China Municipal Engineering Design & Research Institute |