CN201578930U - Filtering membrane for wastewater treatment and wastewater treatment device - Google Patents
Filtering membrane for wastewater treatment and wastewater treatment device Download PDFInfo
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- CN201578930U CN201578930U CN2009200482193U CN200920048219U CN201578930U CN 201578930 U CN201578930 U CN 201578930U CN 2009200482193 U CN2009200482193 U CN 2009200482193U CN 200920048219 U CN200920048219 U CN 200920048219U CN 201578930 U CN201578930 U CN 201578930U
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Abstract
The utility model discloses a filtering membrane used for wastewater treatment and a wastewater treatment device. The filtering membrane is arranged perpendicularly to the flowing direction of wastewater, comprises a barrier layer and a chemical sieve membrane arranged on the side of the barrier layer facing to the wastewater source, wherein micropore passages are formed in the chemical sieve film, and differential working pressure with the specific value larger than 1 is formed on two sides of the filtering membrane where the chemical sieve membrane is compared with the barrier layer. The wastewater treatment device comprises a wastewater reaction device, a chemical agent dosing device and a chemical membrane filter, wherein at least one layer of filtering membrane is formed on the chemical membrane filter in the water flow direction. Clear water and dry sludge can be separated through the single-step filtration of the chemical sieve film, and harmful substances in the wastewater can be efficiently treated. The utility model has the advantages of simple equipment, few technology steps and low cost.
Description
Technical field
The utility model relates to a kind of use in waste water treatment filter membrane and a kind of wastewater treatment equipment that uses this filter membrane, relates generally to a kind of all kinds of lives and Industrial Wastewater Treatment of being used for, and makes its filter membrane that reaches discharge standard and wastewater treatment equipment.
Background technology
All kinds of waste water that produce in daily life and industrial production must effectively be handled, and reach just to allow discharging after the national specified discharge standard, thereby its pollution to environment is reduced to minimum.Traditional method of wastewater treatment mainly contains at present: chemical precipitation method, chemical air supporting method and RO film (Reverse Osmosismembrane) hyperfiltration (claiming the hyperfiltration method again), specifically:
Chemical precipitation method and chemical air supporting ratio juris are more identical, specific practice is: at first make harmful substance and chemical agent in the waste water react the granule that generates the coagulation shape, adding flocculant again makes the granule of coagulation shape gather the bigger flocculence material of formation, if the proportion of flocculence material is during greater than water, then adopt separation by precipitation to make floccular material generate precipitation, and then water is effectively separated with sediment; If the proportion of flocculence material during less than water (the flocculence material that produces when removing degrease class COD), then generally bubbles through the water column floccular material by the air supporting method, and then the venting clear water.The shortcoming of above-mentioned two kinds of methods is:
1, the mud of Chan Shenging need dewater and press dry, and forms to burn behind the solid waste or processing such as landfill again;
2, the compound that forms in the waste water, particularly when organic glue-like compound proportion and water very near the time, just be difficult to separate and remove with said method.
RO membrane reverse osmosis ratio juris and way are: under the impressed pressure effect that is higher than solution osmotic pressure, can not see through the RO film according to other materials, and these materials and moisture are left, this method can be removed dissolved salts in the water, colloid, microorganism, organic matter etc. effectively.But the dense aquaporin of RO film is very little, if contain the solids of a large amount of molecules in the waste water, the very fast meeting of the dense aquaporin of RO film is blocked, and in a single day drainage channel is blocked, and the RO film will lose efficacy and scrap.In addition, RO film with high costs, its range of application only limits to running water is made pure water or seawater desalination at present, so RO membrane reverse osmosis method can't obtain large-scale application in the field of waste water treatment of the preceding rank of industrial production or life.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of use in waste water treatment filter membrane and uses a kind of wastewater treatment equipment of this filter membrane, solve in the wastewater treatment process and remove harmful substance, particularly low, inferior separating effect, cost height, complex process of efficient during the very approaching organic glue-like compound of proportion and water, be unfavorable for the defective of environmental protection.
Primary and foremost purpose of the present utility model will be achieved through the following technical solutions:
The use in waste water treatment filter membrane, it is characterized in that: the described filter membrane that flows to perpendicular to waste water comprises barrier layer and the barrier layer chemical sieve membrane towards the first side of waste water source, be formed with microchannel in the described chemical sieve membrane, and described filter membrane is poor greater than 1 operating pressure at its chemical sieve membrane contrast both sides, barrier layer formation ratio.
Further, aforesaid use in waste water treatment filter membrane wherein should the chemistry sieve membrane be served as reasons and is contained the insoluble granular solids thing that the chemical agent of adsorbent and the harmful substance chemical reaction in the waste water form and gather formation.Can select one or more the mixture in clay, lime stone, cinder powder, activated carbon powder, kaolin, atlapulgite, aluminium chloride, polyiron sulfate, poly-ferric trichloride, bentonite, zeolite and the polyacrylamide for use, its diameter is between 1nm～1000 μ m.
This barrier layer is selected polyamine adipose membrane, milipore filter, filter cloth, nonwoven or filter paper for use.
Secondary objective of the present utility model, its technical solution is:
A kind of wastewater treatment equipment comprises a waste water reaction device, a chemical agent adder and a chemical films filter, and wherein the chemical films filter is provided with one deck filter membrane at least along water (flow) direction.
Further, aforesaid a kind of wastewater treatment equipment, wherein the chemical films filter can only be established the barrier layer of one deck milipore filter, also can be provided with two-layer filter membrane, and described two-layer filter membrane barrier layer water penetration is separately successively decreased in turn along water (flow) direction.
Because the utilization of technique scheme compares to prior art, has the following advantages:
Chemical sieve membrane as this filtration module/one, its used chemical liquid agent not only fully reacts with pending waste water in the waste water reaction device, and when waste water pressure reduction filters by the barrier layer and also further reaction of chemical sieve membrane itself, filtering by chemical sieve membrane single step is separable water that obtains cleaning and dewatered sludge, can efficiently handle the harmful substance in the waste water; And have that equipment is simple, processing step reaches effect with low cost less.
Description of drawings
Fig. 1 is the schematic diagram that the utility model adopts the single layer filter film;
Fig. 2 is the schematic diagram that the utility model adopts two-layer filter membrane;
Fig. 3 is that the utility model takes the wastewater treatment equipment structure of pressure filtration scheme to implement schematic diagram;
Fig. 4 is that the utility model adopts the wastewater treatment equipment structure of vacuum filtration scheme to implement schematic diagram.
The specific embodiment
The utility model provides a kind of filter membrane that is used for wastewater treatment, flows to perpendicular to waste water to be provided with.It comprises that barrier layer 31 and barrier layer towards the chemical sieve membrane a of the first side of waste water source, are formed with microchannel in the described chemical sieve membrane, and described filter membrane is poor greater than 1 operating pressure at its chemical sieve membrane a contrast 31 both sides, barrier layer formation ratio.
Wherein should chemistry sieve membrane a serve as reasons and contain the insoluble granular solids thing that the chemical agent of adsorbent and the harmful substance chemical reaction in the waste water form and gather formation.Can select any in clay, lime stone, cinder powder, activated carbon powder, kaolin, atlapulgite, aluminium chloride, polyiron sulfate, poly-ferric trichloride, bentonite, zeolite and the polyacrylamide for use, its diameter is between 1nm～1000 μ m.
This barrier layer 31 can be polyamine fat composite membrane or high strength milipore filter, filter cloth, nonwoven, filter paper.And formed operating pressure difference scope can be 0.1MPa～1.5Mpa.Specifically refer to respect to the both sides, barrier layer along the formed pressure differential of water (flow) direction, thereby can make higher waste water one side of pressure see through barrier layer 31, leach clear water with chemical sieve membrane a.The available at least following three kinds of methods of the formation of this pressure reduction:
(1), pressure filtration: promptly form pressure by pump or compressed air;
(2), vacuum filtration: promptly, vacuumize formation pressure reduction at the back side on barrier layer by the effect of vacuum attraction;
(3), centrifugal filtration:, utilize the effect of inertia of water to form pressure reduction promptly by centrifugal action power.
The filter membrane that said structure is described, its step when forming and use is:
At first in pending waste water A, add the traditional chemical medicament and comprise the microparticle adsorbent and fully mix stirring, make it with waste water A in some dissolved substance directly produce chemical reaction, form insoluble microgranular solids; To have the barrier layer 31 of certain mechanical strength and resistance to chemical attack ability through pretreated waste water A by one deck again under the operating pressure difference, the indissoluble in the waste water A separates solids and adsorbent is piled up the filtration sieve membrane a that formation has microchannel at barrier layer surface.Waste water A is after through barrier layer 31, it is long-pending more thick more under differential pressure action to filter sieve membrane a, filter densities is also increasing, indissoluble impurity in the waste water A all can be blocked on the filtration sieve membrane a of formation at last, the clear water B of allow compliance with emission standards then leaches by filtering sieve membrane and barrier layer successively, be stored in the filtered water tank, or directly discharge by water pipe.
In addition, above-mentioned filtration sieve membrane a (behind the 1mm～100mm), can dry up with compressed air, make it the disposable removal of peeling off with machinery, gravity or manual method again reaching certain thickness.Barrier layer 31 is after removing the filtration sieve membrane, and is reusable.When the barrier layer is selected nonwoven or low-cost filter cloth for use, can dispose with the filtration sieve membrane that forms.
A kind of filter membrane and the wastewater treatment equipment that adopt the utility model to provide can solve effectively in the conventional wastewater treatment that efficient is low, inferior separating effect, the too high problem of cost.Compared with prior art, have the following advantages: equipment is simple, with low cost, processing step is few, adopts the water and the dewatered sludge that can obtain cleaning once the step filtration method; Because waste water not only fully reacts with chemical agent in reactor, and in pressure-filtering process, also further react with filtration sieve membrane itself.This reaction utilization concentration gradient principle, the harmful substance that will be difficult to handle effectively retaining forms dewatered sludge outside filter membrane.
Certainly, technical solutions of the utility model are not limited only to the embodiment on above-mentioned one deck barrier layer.As shown in Figure 2, be that the utility model adopts two-layer barrier layer to form the schematic diagram of sieves membrane filtration.By shown in the figure as can be seen: in the chemical films filter, can two-layer barrier layer be set along water (flow) direction, and successively decrease in turn along the barrier layer water penetration that water (flow) direction is set, be that waste water A is earlier by higher barrier layer 32 (the relatively inexpensive filter cloth of water penetration, nonwoven or filter paper) and filter the harmful substance that sieve membrane a partly filters out particle big (diameter 1000 μ m are following), form more clear waste water D relatively, and then by the lower barrier layer 31 of water penetration (polyamine adipose membrane or milipore filter) and filter sieve membrane a and filter once more, it is above but be no more than the harmful substance of hundreds of nanometer to remove whole diameter 1 nanometers, obtains the clear water B of allow compliance with emission standards.
For making technical characterictic of the present utility model and effect clearer and more definite, below just implement the device of this method and, do detailed and nonrestrictive further description in conjunction with its accompanying drawing by concrete.
As shown in Figure 3 and Figure 4, be the enforcement schematic diagram that the utility model is taked the wastewater treatment equipment of pressure filtration scheme and employing vacuum filtration scheme respectively.From seeing shown in the figure: this wastewater treatment equipment comprises a waste water reaction device 1, the integrated chemical agent adder 2 that is installed in the waste water reaction device 1, and a chemical films filter 3 that links to each other with waste water reaction device 1 by pipeline.In the apparatus structure of this general character, can optionally insert pump 41, compressed air reservoir (not shown) or vacuum attraction jar 42 etc., thereby make to form certain pressure differential in the chemical films filter 3 of this wastewater treatment equipment, for filtering the condition that provides by chemical films.The clear water B that filters after sieve membrane a filters through single or multiple lift is discharged in the external environment by water pump extraction or gravity effect.Wherein, can optionally install the barrier layer of one deck or two-layer above different size form in this chemical films filter 3.
Use this method of wastewater treatment and device thereof and carry out plant chimney stalk processing experiment, obtain the following data, can prove fully that technical solutions of the utility model have outstanding and obvious improvement.
Experiment one: the processing of electronickelling, chemical nickel composite waste
Former water nickel content 136.9mg/l handles back water outlet nickel content 0.043mg/l by the method, only is 8.6% of new nation's discharge standard (0.5mg/l).The nickel clearance is up to 99.97%.20m
3Nickel-containing waste water produce nickeliferous mud 320kg, moisture content 70～80%, nickel content are 58.33% (proportion).
Experiment two: the processing of chemical nickel waste water
Former water nickel content 9465mg/l handles back water outlet nickel content 0.073mg/l with the method, only is 14.6% of new nation's discharge standard (0.5).The nickel clearance is up to 99.9992%.
Experiment three: the processing of industrial COD waste water
Former water COD content is 2101mg/l, and water outlet COD content 42.7mg/l after the chemical films filtration treatment only takes over 28.5% of discharge standard (150mg/l) for sewage, and clearance reaches 97.97%.
In sum, feature, the embodiment of a kind of method of wastewater treatment of the utility model and device thereof and the technique effect that is played thereof have obtained comprehensive displaying.But below embodiment in conjunction with the accompanying drawings describes and only provides as understandable explanation, is not to limit enforcement diversity of the present utility model with this.So in every case the simple modification or the equivalence of above-mentioned embodiment are replaced, can realize the design of described technique effect, all should be included within the scope that present patent application asks for protection.
Claims (6)
1. use in waste water treatment filter membrane is characterized in that: the described filter membrane that flows to perpendicular to waste water comprises that barrier layer and barrier layer towards the chemical sieve membrane of the first side of waste water source, are formed with microchannel in the described chemical sieve membrane.
2. use in waste water treatment filter membrane according to claim 1 is characterized in that: described chemical sieve membrane forms for being gathered by the granular solids thing, and the granular solids thing forms microchannel each other.
3. use in waste water treatment filter membrane according to claim 2 is characterized in that: described adsorbent is a diameter between one of the clay of 1nm～1000 μ m, lime stone, cinder powder, activated carbon powder, kaolin, atlapulgite, aluminium chloride, polyiron sulfate, poly-ferric trichloride, bentonite, zeolite and polyacrylamide.
4. use in waste water treatment filter membrane according to claim 1 is characterized in that: described barrier layer is selected polyamine adipose membrane, milipore filter, filter cloth, nonwoven or filter paper for use.
5. wastewater treatment equipment that uses the described filter membrane of claim 1, it is characterized in that: described treating apparatus comprises a waste water reaction device, a chemical agent adder and a chemical films filter, and described chemical films filter is provided with one deck filter membrane at least along water (flow) direction.
6. wastewater treatment equipment according to claim 5 is characterized in that: described chemical films filter is provided with two-layer filter membrane, and described two-layer filter membrane barrier layer water penetration is separately successively decreased in turn along water (flow) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200482193U CN201578930U (en) | 2009-09-01 | 2009-09-01 | Filtering membrane for wastewater treatment and wastewater treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200482193U CN201578930U (en) | 2009-09-01 | 2009-09-01 | Filtering membrane for wastewater treatment and wastewater treatment device |
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| CN201578930U true CN201578930U (en) | 2010-09-15 |
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| CN2009200482193U Expired - Fee Related CN201578930U (en) | 2009-09-01 | 2009-09-01 | Filtering membrane for wastewater treatment and wastewater treatment device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628294A (en) * | 2012-03-04 | 2012-08-08 | 浙江科技学院 | Inspection shaft sludge solidifying and clearing method |
| CN103848469A (en) * | 2012-11-28 | 2014-06-11 | 大连东泰产业废弃物处理有限公司 | Method for processing municipal wastewater |
| CN104837776A (en) * | 2012-11-13 | 2015-08-12 | 艾威拉股份公司 | Purification of oil-polluted water and device suitable therefor |
| CN112759138A (en) * | 2021-01-14 | 2021-05-07 | 苏州融和福天宝环保科技有限责任公司 | Method for removing oil stain in oily wastewater |
| CN112870992A (en) * | 2021-01-13 | 2021-06-01 | 同济大学 | Zeolite membrane and preparation method thereof |
-
2009
- 2009-09-01 CN CN2009200482193U patent/CN201578930U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628294A (en) * | 2012-03-04 | 2012-08-08 | 浙江科技学院 | Inspection shaft sludge solidifying and clearing method |
| CN102628294B (en) * | 2012-03-04 | 2013-11-06 | 浙江科技学院 | Inspection shaft sludge solidifying and clearing method |
| CN104837776A (en) * | 2012-11-13 | 2015-08-12 | 艾威拉股份公司 | Purification of oil-polluted water and device suitable therefor |
| US10358360B2 (en) | 2012-11-13 | 2019-07-23 | Eviola S.A. | Purification of oil-polluted water and device suitable therefor |
| CN103848469A (en) * | 2012-11-28 | 2014-06-11 | 大连东泰产业废弃物处理有限公司 | Method for processing municipal wastewater |
| CN112870992A (en) * | 2021-01-13 | 2021-06-01 | 同济大学 | Zeolite membrane and preparation method thereof |
| CN112759138A (en) * | 2021-01-14 | 2021-05-07 | 苏州融和福天宝环保科技有限责任公司 | Method for removing oil stain in oily wastewater |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20110901 |