CN101985375B - High-efficiency washing method and device for filter adopting expansive filler - Google Patents
High-efficiency washing method and device for filter adopting expansive filler Download PDFInfo
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- CN101985375B CN101985375B CN2010102415133A CN201010241513A CN101985375B CN 101985375 B CN101985375 B CN 101985375B CN 2010102415133 A CN2010102415133 A CN 2010102415133A CN 201010241513 A CN201010241513 A CN 201010241513A CN 101985375 B CN101985375 B CN 101985375B
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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
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Abstract
The invention discloses a high-efficiency washing method and a high-efficiency washing device for a filter adopting expansive fillers. The structure and working process comprise that: a valve for water inlet, a valve for normal water outlet and a valve for aeration are closed; a water level in the filter is reduced to a washing water level through drainage, wherein the washing water level is lower than a normally working water level; a valve for washing water inlet and a valve for washing aeration at the lower part of the filter are opened and a purification device in the filter is washed by using upward water flow and airflow; and the washing water is discharged from a washing water outlet at the bottom end of a washing water receiving tank outside the top end of the filter. The invention has the advantages that: due to reduction of the water level in the filter, the reduced water level washing reduces pressure needed by a washing water pump and a washing fan and the energy are saved; the reduced water level washing is to reduce the water level in the filter first to provide an expansion area for activated carbon, so that the activated carbon rolls to form friction on the part below the normal water level in the process of washing. Therefore, the biofilm is separated and flows out of the system along with the washing water, and the washing effect is improved.
Description
Technical field
The present invention relates to a kind of efficient purging method that all adopt the filter tank (like BAF, activated carbon filter and charcoal absorption pond etc.) of dilatancy filler that is used for; And the isolated plant of implementing this method; Be applicable to polluted river water, the improvement of lake, little pollution river, also can be used for high-quality regeneration waterworks construction.
Background technology
The polluter (dissolving, suspension, colloidal substance and microorganism etc.) that in polluted river water, little pollution river lake water, exists various forms to exist; When adopting biological activated carbon clarifier-tank or BAF, activated carbon filter and charcoal absorption pond to handle; After operation a period of time, biofilm biomass increases gradually on the filtrate, to the resistance increase of water; Filtering velocity descends, and when resistance acquires a certain degree, just need wash the filter tank.Present purging method is when full-water level, directly the filter tank to be washed, and the aeration of the water of flushing adds from the bottom, filter tank, and the water after the flushing is discharged from the water receiving tank of purifying waste water at top, filter tank.The shortcoming that above-mentioned purging method exists is: full-water level has increased the power consumption of flush water pump and flushing blower fan, causes the waste of the energy; Owing to be full-water level, make that the water discharge capacity (ratio) after the flushing descends, reduced developing result; Can not be for active carbon provide expansion area, limited rolling, rubbing of active carbon in the flushing process, reduced biomembranous disengaging, also can reduce developing result.
Summary of the invention
The purpose of this invention is to provide a kind of efficient purging method and device that all adopt the filter tank of dilatancy filler that be used for, to solve the high and low problem of developing result of power consumption that prior art exists.
Technical scheme of the present invention is:
A kind of efficient purging method that is used for the filter tank of all employing dilatancy fillers is characterized in that its flow process comprises: close the into valve of water, normal water outlet, aeration; Draining is reduced to the flushing water level with the filter tank middle water level, and this flushing water level is lower than the water level of operate as normal; Open the flushing water inlet of bottom, filter tank and the valve of flushing aeration, utilize current upwards and air-flow that the purifier of inside, filter tank is washed; Flushing water is discharged from the flushing water outlet of the flushing water water receiving tank bottom in the outside, top, filter tank.
A kind ofly implement the described device that is used for the efficient purging method in all filter tanks of adopting the dilatancy fillers; It is characterized in that; Comprise pond body, filter material layer, water-distributing device, the distribution device in filter tank and the water receiving tank of purifying waste water; In the body of pond, be disposed with water-distributing device, distribution device and filter material layer from bottom to up, it is external that the cloth water inlet of this water-distributing device and the work aeration of distribution device inlet all pass this pond; The outside in the port of this pond body is provided with the flushing water water receiving tank, is provided with the water receiving tank of purifying waste water in the outside of this flushing water water receiving tank, and the top, outer of this flushing water water receiving tank is higher than the top of pond body and is lower than the top of the water receiving tank outer of purifying waste water; Bottom at this flushing water water receiving tank and the water receiving tank of purifying waste water is respectively equipped with flushing water outlet and treated water outlet; Be connected to flushing water inlet and flush water pump at described cloth water inlet, be connected to the flushing air inlet at described work aeration inlet.
The invention has the beneficial effects as follows:
1, the flushing of precipitation position has reduced flush water pump and the required pressure of flushing blower fan because the filter tank middle water level reduces, and has practiced thrift the energy;
2, the flushing of precipitation position at first reduces the filter tank middle water level; For active carbon provides expansion area; Make that active carbon rolls, rubs with the lower part at ordinary water level in the flushing process, biomembrane is broken away from, the biomembrane that comes off is with the flushing water outflow system; This process has reduced the friction probability of active carbon and upper strata catch net, reduces the wearing and tearing and the loss of active carbon.
Description of drawings
Fig. 1 is a general structure sketch map of the present invention.
Description of reference numerals: 1, pond body, 2, the carbon leaching material layer, 3, the flushing water water receiving tank, 4, the water receiving tank of purifying waste water; 5, flushing water outlet, 6, treated water outlet, 7, distribution device, 8, work aeration inlet; 9, filter gripper shoe, 10, water-distributing device, 11, the cloth water inlet, 12, flush water pump; 13, flushing water inlet, 14, the flushing air inlet, D1, flushing water level, D2, normal (draining) water level.
The specific embodiment
Referring to Fig. 1; A kind of efficient purging method and flusher that is used for the filter tank (like BAF, activated carbon filter and charcoal absorption pond etc.) of all employing dilatancy fillers of the present invention; It is characterized in that; Comprise pond body 1, filter material layer 2, water-distributing device 10, the distribution device 7 in filter tank and the water receiving tank 4 of purifying waste water; In pond body 1, be disposed with water-distributing device 10, distribution device 7 and filter material layer 2 from bottom to up, the work aeration inlet 8 of the cloth water inlet 11 of this water-distributing device 10 and distribution device 7 all passes outside this pond body 1.The outside in the port of this pond body 1 is provided with flushing water water receiving tank 3, is provided with the water receiving tank 4 of purifying waste water in the outside of this flushing water water receiving tank 3, and the top, outer of this flushing water water receiving tank 3 is higher than the top of pond body 1 and is lower than the top of water receiving tank 4 outers of purifying waste water.Bottom at this flushing water water receiving tank 3 and the water receiving tank 4 of purifying waste water is respectively equipped with flushing water outlet 5 (valve is housed) and treated water outlet 6 (valve is housed).Be connected to flushing water inlet (valve is housed) 13 and flush water pump 12 at described cloth water inlet 11, be connected to flushing air inlet (valve is housed) 14 at described work aeration inlet 8.On work aeration inlet 8 and cloth water inlet 11, valve is housed all also.
Also can between described water-distributing device 10 and distribution device 7, be provided with filter gripper shoe 9, form, be routine techniques by a plurality of filters that are located on the gripper shoe.Water-distributing device 10 also is a routine techniques with distribution device 7.
Described biological activated carbon filter material layer 2 be with common granular activated carbon as a kind of filler, utilize the huge specific area of active carbon, for microorganism in the water provides the carrier of depending on for existence, make microorganism in activated carbon surface growth, breeding.System's initial operating stage, microbial biomass is less, and it is less that activated carbon surface is hung modulus, and the removal of water pollutant mainly is the suction-operated of active carbon.After operation a period of time, activated carbon surface is hung modulus to be increased gradually, and the organism in water amount increases, and when biomembrane was ripe, the removal of pollutant mainly was the degradation of microorganism in the water body, and this moment, active carbon was biological activated carbon.And the common active carbon that general water treatment is used, only with active carbon as adsorbing medium, utilize the suction-operated of active carbon, remove the pollutant in the water.
Need wash biological activated carbon filter after operation a period of time, the course of work of the precipitation flusher of above-mentioned biological activated carbon filter comprises: the valve of closing cloth water inlet 11, treated water outlet 6, work aeration inlet 8; Open flushing water and export 5 drainings, the filter tank middle water level is reduced to flushing water level D1, this flushing water level D1 is lower than the water level D2 of operate as normal (draining); Open the flushing inlet 13 of bottom, filter tank and the valve of flushing air inlet 14, and open flush water pump 12, utilize current upwards and air-flow that the biological activated carbon filter material layer 2 of inside, filter tank is carried out air water and unite flushing; The sewage inlet that the total system front end was discharged or be transported to flushing water from the flushing water outlet 5 of flushing water water receiving tank 3 bottoms in the outside, top, filter tank is handled again.
Claims (1)
1. an enforcement is used to adopt the device of the efficient purging method in dilatancy filler filter tank; It is characterized in that; The pond body, biological activated carbon filter material layer, water-distributing device, distribution device and the water receiving tank of purifying waste water that comprise the filter tank; In the body of pond, be disposed with water-distributing device, distribution device and biological activated carbon filter material layer from bottom to up, it is external that the cloth water inlet of this water-distributing device and the work aeration of distribution device inlet all pass this pond; The outside in the port of this pond body is provided with the flushing water water receiving tank, is provided with the water receiving tank of purifying waste water in the outside of this flushing water water receiving tank, and the top, outer of this flushing water water receiving tank is higher than the top of pond body and is lower than the top of the water receiving tank outer of purifying waste water; Bottom at this flushing water water receiving tank and the water receiving tank of purifying waste water is respectively equipped with flushing water outlet and treated water outlet; Be connected to flushing water inlet and flush water pump at described cloth water inlet, be connected to the flushing air inlet at described work aeration inlet; Between described water-distributing device and distribution device, be provided with the filter gripper shoe; Describedly be used to adopt the flow process of the efficient purging method in dilatancy filler filter tank to comprise: to close the into valve of water, normal water outlet, aeration; Draining is reduced to the flushing water level with the filter tank middle water level, and this flushing water level is lower than the water level of operate as normal; Open the flushing water inlet of bottom, filter tank and the valve of flushing aeration, utilize current upwards and air-flow that the purifier of inside, filter tank is washed; Flushing water is discharged from the flushing water outlet of the flushing water water receiving tank bottom in the outside, top, filter tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102415133A CN101985375B (en) | 2010-08-02 | 2010-08-02 | High-efficiency washing method and device for filter adopting expansive filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102415133A CN101985375B (en) | 2010-08-02 | 2010-08-02 | High-efficiency washing method and device for filter adopting expansive filler |
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| Publication Number | Publication Date |
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| CN101985375A CN101985375A (en) | 2011-03-16 |
| CN101985375B true CN101985375B (en) | 2012-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102415133A Expired - Fee Related CN101985375B (en) | 2010-08-02 | 2010-08-02 | High-efficiency washing method and device for filter adopting expansive filler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772935A (en) * | 2012-07-19 | 2012-11-14 | 江苏傲伦达科技实业股份有限公司 | Flat-bottom suction filter |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663733B (en) * | 2013-12-25 | 2016-05-25 | 卞佳林 | A kind of BAF |
| CN105130095A (en) * | 2015-07-15 | 2015-12-09 | 上海市政工程设计研究总院（集团）有限公司 | Raw water biological pre-treatment system and raw water biological pre-treatment method |
| CN105152310B (en) * | 2015-09-22 | 2017-05-10 | 南京大学 | In-situ excitation method of biological aerated filter aged biological film |
| CN105254001B (en) * | 2015-10-21 | 2020-04-24 | 轻工业环境保护研究所 | Bottom filter material type aerobic reactor |
| CN107129054B (en) * | 2017-06-26 | 2020-10-16 | 河海大学 | Method suitable for intermittent operation of biological activated carbon filter |
| CN108793369A (en) * | 2018-08-08 | 2018-11-13 | 中国华电科工集团有限公司 | A kind of sea water preprocessing equipment cloth water-bound having cleaning function |
| CN115075277A (en) * | 2022-08-13 | 2022-09-20 | 张科举 | Building foundation pit drainage system and drainage structure thereof |
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| CN2438709Y (en) * | 2000-08-04 | 2001-07-11 | 冶金工业部马鞍山钢铁设计研究院 | Upward flow aeration biological filtering tank |
| CN1491903A (en) * | 2003-08-15 | 2004-04-28 | 常建一 | Integrated aeration boilogical filter tank |
| CN1693230A (en) * | 2005-04-28 | 2005-11-09 | 魏刚 | Biological reactor with internal circulating double filtering |
| CN201746382U (en) * | 2010-08-02 | 2011-02-16 | 朱向宏 | High-efficiency flushing apparatus for filters adopting expansion filling |
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2010
- 2010-08-02 CN CN2010102415133A patent/CN101985375B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2438709Y (en) * | 2000-08-04 | 2001-07-11 | 冶金工业部马鞍山钢铁设计研究院 | Upward flow aeration biological filtering tank |
| CN1491903A (en) * | 2003-08-15 | 2004-04-28 | 常建一 | Integrated aeration boilogical filter tank |
| CN1693230A (en) * | 2005-04-28 | 2005-11-09 | 魏刚 | Biological reactor with internal circulating double filtering |
| CN201746382U (en) * | 2010-08-02 | 2011-02-16 | 朱向宏 | High-efficiency flushing apparatus for filters adopting expansion filling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772935A (en) * | 2012-07-19 | 2012-11-14 | 江苏傲伦达科技实业股份有限公司 | Flat-bottom suction filter |
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| CN101985375A (en) | 2011-03-16 |
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Application publication date: 20110316 Assignee: BEIJING NEWATT ENVIRONMENTAL ENGINEERING Co.,Ltd. Assignor: Zhu Xianghong Contract record no.: 2014990000599 Denomination of invention: High-efficiency washing method and device for filter adopting expansive filler Granted publication date: 20120215 License type: Exclusive License Record date: 20140728 |
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