CN100360433C - Method and equipment for treating slight polluted water by integrated adsorption and separation - Google Patents
Method and equipment for treating slight polluted water by integrated adsorption and separation Download PDFInfo
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- CN100360433C CN100360433C CNB2005100493955A CN200510049395A CN100360433C CN 100360433 C CN100360433 C CN 100360433C CN B2005100493955 A CNB2005100493955 A CN B2005100493955A CN 200510049395 A CN200510049395 A CN 200510049395A CN 100360433 C CN100360433 C CN 100360433C
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000000630 rising effect Effects 0.000 claims description 15
- 238000005194 fractionation Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 239000012065 filter cake Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229910000278 bentonite Inorganic materials 0.000 abstract description 4
- 239000000440 bentonite Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 239000003651 drinking water Substances 0.000 abstract description 2
- 235000020188 drinking water Nutrition 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000001112 coagulating effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000005446 dissolved organic matter Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Water Treatment By Sorption (AREA)
- Filtration Of Liquid (AREA)
Abstract
The present invention discloses a method and a device thereof for treating micro polluted water. In the method, a circulating and precoating system is adopted to precoat diatomite on a filtering element of a precoating film filter, and mixed suspension liquid of micro polluted water and bentonite is filtered in a circulating and filtering system. After the mixed suspension liquid is filtered by the filtering element, clear water is discharged. The reverse blow is carried out by compressed air, dry residues of the diatomite and the bentonite on the filtering element are blown off, and the treating steps are continuously repeated. The present invention organically combines the high adsorbability of the bentonite and the precoating film filtering technology of the diatomite to successfully solve the technological problem of difficult solid-liquid separation when an adsorption method is used for treating soluble organic substances in the micro polluted water. The present invention has the advantages of compact and simple structure, small occupation area and high processing efficiency. Besides, the adsorption process and the separation process are integrally and simultaneously carried out in a treating device, and the treated micro polluted water can completely reach the water quality standards of water sources of drinking water.
Description
Technical field
The present invention relates to a kind of method and device thereof of handling micro-polluted water.
Technical background
Conventional water treatment process can effectively be removed suspended substance and the colloidalmaterial in the former water, but can not effectively remove organic pollutant and chemical disinfection byproducts.In the face of constantly increasing the weight of of pollution of waterhead, particularly form the organic compound of mutagen and haloform and can be impelled people to research and develop the novel process of removing this compounds by the existence of microorganism as the solubility organic compound of carbon source.Absorption method can effectively be removed dissolved organic matter in the water, becomes one of effective measure in the water treatment.
Pulverous wilkinite has good adsorption treatment effect to the organic micro-polluted water that contains solubility, but because wilkinite is a kind of Powdered clay, swelling easily taking place behind the water logging bubble, form the mud of dispersion suspension, causes solid-liquid separation very difficult.At present a lot of solid-liquid separation adopt coagulating sedimentation or sand filtration technology.Coagulating sedimentation need add chemical agent, and processing cost causes secondary pollution easily than higher; And adopt sand filtration technology, and to stop up easily, back flushing is difficulty relatively, and effluent quality is poor.And absorption be separated in different processing units in carry out respectively, increased floor space greatly, the less water treatment plant of the scale that therefore is not suitable for uses.
Summary of the invention
The object of the present invention is to provide a kind of compact construction, the method and the device thereof of the close-coupled processing micro-polluted water of fractionation by adsorption that processing efficiency is higher.
The method of the close-coupled processing micro-polluted water of fractionation by adsorption of the present invention may further comprise the steps:
1) diatomite of precoating 1-5 mm thick on the filter element of pre-filming filter;
2) micro-polluted water is mixed the suspension that forms with pulverous wilkinite, circulation pumps into pre-filming filter, suspension is carried out circulating filtration handle;
3) circular treatment finishes, the clear water discharging;
4) amass the filter cake that diatomite on the pre-filming filter filter element and wilkinite form with the pressurized air blowback, clear water washes down then, repeats above-mentioned steps again.
Among the present invention, the diatomaceous particle diameter of employing is the 5-30 micron, and wilkinite is a 80-200 purpose powder.
Handle the device of micro-polluted water with above-mentioned fractionation by adsorption integral method, it is characterized in that it mainly comprises slop pail, the precoating bucket, pump, pre-filming filter and air compressor, water inlet pipe is arranged at the bottom of pre-filming filter, the top is provided with rising pipe and tensimeter, has the filter element that surrounds by filter screen of being separated by in the pre-filming filter with housing, the bottom of filter element is connected to water pipe and ventpipe, the water-in of pump also is connected to two water inlet pipes, the water outlet of pump also is connected to two rising pipes, the outlet of precoating bucket links to each other with a water inlet pipe of pump through first valve, a rising pipe of pump links to each other through the water inlet pipe of second valve with the pre-filming filter bottom, the rising pipe at pre-filming filter top is connected through the import of the 3rd valve with the precoating bucket, slop pail has water outlet, water outlet links to each other with another water inlet pipe of pump through the 4th valve, the water pipe of filter element bottom divides two the tunnel, wherein one the tunnel is connected with the import of slop pail through the 5th valve and under meter, another Lu Jingdi six valves link to each other with another rising pipe of pump, and ventpipe communicates with air compressor.
During work, at first add diatomite in the precoating bucket, open first valve, second valve and the 3rd valve, the circulated pre-coating system that is formed by precoating bucket, pump and pre-filming filter begins the precoating that circulates, and forming thick on filter element is the diatomite filtration layer of 1-5 millimeter.In slop pail, add wilkinite then, stir and form suspension, switch valve, first valve and the 3rd valve are closed, the 4th valve and the 5th opening of valves, at this moment slop pail, pump and pre-filming filter form circulated filter system, after suspension pumps into pre-filming filter, enter filter element through scribbling diatomaceous filtering layer, flow out from the water pipe of filter element bottom, be back to slop pail through pipeline and carry out the integrated circular treatment of fractionation by adsorption, the organism in the micro-polluted water is constantly adsorbed by wilkinite, and wilkinite is held back by the diatomite pre-coating film, continuous increase falls in the pressure of the inside and outside both sides of filter element, if the pressure when concentration of suspension is zero in the recirculated water is reduced to filtering ultimate value, when falling in pressure, the value of reaching capacity shows that solid-liquid separation finishes, stop filtration.Utilize the pressurized air blowback,, close second valve again, open the 6th valve, use the less water back flushing earlier most of diatomite and the dried slag stripping of wilkinite.The micro-polluted water processing finishes, and discharges clear water, begins the integrated cycle of fractionation by adsorption of a new round again.
The present invention combines bentonitic high efficiency of additive capability and celatom pre-coating filter technology, because diatomite can form on the filter element surface and be easy to by the filtration precoating rete of stripping, the effectively catching bentonite suspension, thus successful solution absorption method solid-liquid separation difficult technologies difficult problem when handling in the micro-polluted water dissolved organic matter.Apparatus of the present invention compact construction is simple, can realize that an absorption and sepn process are integrated in a treatment unit and carry out simultaneously, has reduced floor space, and the precoating repeatedly of diatomite pre-coating film, and wilkinite original soil and diatomite are cheap and easy to get, the processing efficiency height.Test shows that permanganate index is that water outlet dropped to 3.2mg/L after the former water of 6.8mg/L was handled through the fractionation by adsorption integrated technique.Can reach the drinking water source water quality standard fully after treatment.The present invention is fit to small-sized water treatment plant and uses.
Description of drawings
Fig. 1 is the device synoptic diagram of the close-coupled processing micro-polluted water of fractionation by adsorption;
Fig. 2 is a kind of filter element structural representation.
Embodiment
With reference to Fig. 1, the device of the close-coupled processing micro-polluted water of fractionation by adsorption of the present invention mainly comprises slop pail 1, precoating bucket 3, pump 11, pre-filming filter 13 and air compressor 10, water inlet pipe 17 is arranged at the bottom of pre-filming filter 13, the top is provided with rising pipe 5 and tensimeter 6, has the filter element 7 that surrounds by filter screen of being separated by in the pre-filming filter 13 with housing, filter element 7 can be as shown in Figure 2, the rectangular cavities of fixedly forming by two metal screens 23 in front and back and framework 22, the bottom of filter element 7 is connected to water pipe 16 and ventpipe 8, the water-in of pump 11 also is connected to two water inlet pipes, the water outlet of pump also is connected to two rising pipes, the outlet of precoating bucket 3 links to each other with a water inlet pipe of pump 11 through first valve 18, a rising pipe of pump links to each other through the water inlet pipe 17 of second valve 19 with pre-filming filter 13 bottoms, the rising pipe 5 at pre-filming filter 13 tops is connected with the import of precoating bucket 3 through the 3rd valve 14, slop pail 1 has water outlet 4, water outlet 4 links to each other with another water inlet pipe of pump 11 through the 4th valve 15, the water pipe of filter element 7 bottoms 16 minutes two tunnel, wherein one the tunnel is connected with the import of slop pail 1 through the 5th valve 21 and under meter 9, another Lu Jingdi six valves 20 link to each other with another rising pipe of pump 11, and ventpipe 8 communicates with air compressor 10.2,12 are respectively electric blender among the figure.
Claims (4)
1. the device of the close-coupled processing micro-polluted water of fractionation by adsorption, it is characterized in that it mainly comprises slop pail (1), precoating bucket (3), pump (11), pre-filming filter (13) and air compressor (10), water inlet pipe (17) is arranged at the bottom of pre-filming filter (13), the top is provided with rising pipe (5) and tensimeter (6), has the filter element (7) that surrounds by filter screen of being separated by in the pre-filming filter (13) with housing, the bottom of filter element (7) is connected to water pipe (16) and ventpipe (8), the water-in of pump (11) also is connected to two water inlet pipes, the water outlet of pump also is connected to two rising pipes, the outlet of precoating bucket (3) links to each other with a water inlet pipe of pump (11) through first valve (18), a rising pipe of pump links to each other through the water inlet pipe (17) of second valve (19) with pre-filming filter (13) bottom, the rising pipe (5) at pre-filming filter (13) top is connected through the import of the 3rd valve (14) with precoating bucket (3), slop pail (1) has water outlet (4), water outlet (4) links to each other through the 4th valve (15) another water inlet pipe with pump (11), water pipe (16) Fen Erlu of filter element (7) bottom, wherein one the tunnel is connected with the import of slop pail (1) through the 5th valve (21) and under meter (9), another Lu Jingdi six valves (20) link to each other with another rising pipe of pump (11), and ventpipe (8) communicates with air compressor (10).
2. device according to claim 1 is characterized in that the rectangular cavities that filter element (7) fixedly is made up of two metal screens in front and back (23) and framework (22).
3. the device of the close-coupled processing micro-polluted water of the described fractionation by adsorption of claim 1 is used to handle the method for micro-polluted water, it is characterized in that may further comprise the steps:
1) add diatomite in the precoating bucket, open the circulated pre-coating system that is formed by precoating bucket, pump and pre-filming filter, forming thick on the filter element of pre-filming filter is the diatomite filtration layer of 1-5 millimeter;
2) in slop pail, add wilkinite, stir to form suspension, suspension is pumped into pre-filming filter after, enter filter element through scribbling diatomaceous filtering layer, flow out from the water pipe of filter element bottom, be back to slop pail through pipeline and carry out the integrated circular treatment of fractionation by adsorption;
Solid-liquid separation was finished when 3) concentration of suspension was zero in the recirculated water, stopped to filter;
4) amass the filter cake that diatomite on the pre-filming filter filter element and wilkinite form with the pressurized air blowback, clear water washes down then, and the discharging clear water repeats above-mentioned steps again, begins the integrated cycle of fractionation by adsorption of a new round again.
4. the method for processing micro-polluted water according to claim 3 is characterized in that said diatomaceous particle diameter is the 5-30 micron, and wilkinite is a 80-200 purpose powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100493955A CN100360433C (en) | 2005-03-18 | 2005-03-18 | Method and equipment for treating slight polluted water by integrated adsorption and separation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100493955A CN100360433C (en) | 2005-03-18 | 2005-03-18 | Method and equipment for treating slight polluted water by integrated adsorption and separation |
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| Publication Number | Publication Date |
|---|---|
| CN1686845A CN1686845A (en) | 2005-10-26 |
| CN100360433C true CN100360433C (en) | 2008-01-09 |
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| CNB2005100493955A Expired - Fee Related CN100360433C (en) | 2005-03-18 | 2005-03-18 | Method and equipment for treating slight polluted water by integrated adsorption and separation |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580295B (en) * | 2009-06-22 | 2011-06-01 | 浙江大学 | Method for cooperatively processing micro pollution drinking water source by ozone-bentonite-Fe<3+> |
| CN101935362B (en) * | 2009-06-30 | 2012-07-25 | 上海佰加壹医药有限公司 | Method for purifying hyaluronic acid by pre-laying filter aid |
| CN102050501B (en) * | 2009-11-06 | 2013-12-25 | 上海巴安水务股份有限公司 | Microfiltration film-forming processing device and microfiltration film-forming processing method thereof |
| CN102557197B (en) * | 2012-03-05 | 2013-06-26 | 同济大学 | Method for further reducing effluent turbidity in process of treating raw water by using diatomite dynamic membrane |
| CN105330058B (en) * | 2015-10-30 | 2017-10-20 | 北京国电富通科技发展有限责任公司 | A kind of adsorbing separation integrated reactor and its processing method |
| CN112047418A (en) * | 2020-08-14 | 2020-12-08 | 白银原点科技有限公司 | Wastewater fluorine removal device and wastewater fluorine removal method |
| CN112807827A (en) * | 2020-12-01 | 2021-05-18 | 飞潮（无锡）过滤技术有限公司 | Full-automatic cleaning and filtering system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273703Y (en) * | 1996-03-01 | 1998-02-04 | 同济大学 | Filtering apparatus for drinking water |
| CN1287539A (en) * | 1998-09-25 | 2001-03-14 | Urc技术有限公司 | Rapid coagulation-flocculation and sedimentation type waste water treatment method |
| CN2776961Y (en) * | 2005-03-18 | 2006-05-03 | 浙江大学 | Device for integrated treating micropolluted water by adsorption separation |
-
2005
- 2005-03-18 CN CNB2005100493955A patent/CN100360433C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273703Y (en) * | 1996-03-01 | 1998-02-04 | 同济大学 | Filtering apparatus for drinking water |
| CN1287539A (en) * | 1998-09-25 | 2001-03-14 | Urc技术有限公司 | Rapid coagulation-flocculation and sedimentation type waste water treatment method |
| US6447686B1 (en) * | 1998-09-25 | 2002-09-10 | Chun Sik Choi | Rapid coagulation-flocculation and sedimentation type waste water treatment method |
| CN2776961Y (en) * | 2005-03-18 | 2006-05-03 | 浙江大学 | Device for integrated treating micropolluted water by adsorption separation |
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| CN1686845A (en) | 2005-10-26 |
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Granted publication date: 20080109 Termination date: 20110318 |