CN108339325A - A kind of low cost sewage greasy dirt filter plate and preparation method - Google Patents
A kind of low cost sewage greasy dirt filter plate and preparation method Download PDFInfo
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- CN108339325A CN108339325A CN201810210433.8A CN201810210433A CN108339325A CN 108339325 A CN108339325 A CN 108339325A CN 201810210433 A CN201810210433 A CN 201810210433A CN 108339325 A CN108339325 A CN 108339325A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
Abstract
The invention belongs to the technical field of sewage disposal, a kind of inexpensive sewage greasy dirt filter plate and preparation method are provided.This method first prepares concrete layer using foam process, then glass fibre is added in silica dioxide gel liquid, and aerogel layer is made in the surface coated on foamed concrete layer, and further high-strength polymer fiber textle layers are bonded on aerogel layer, and sewage water filtration plate is made.Compared with conventional method; the high-strength polymer fiber textle layers of the inexpensive sewage greasy dirt filter plate of the preparation of the present invention have good toughness; can effectively protect filter plate is not damaged by Sewage shock; special micropore is formed using aerosil; the pollutants such as greasy dirt, microparticle object and bacteria particles that can be effectively in filter sewage; strainability reaches the filtering function of ultrafiltration membrane; simultaneously using foamed concrete layer as supporting layer; effectively extend the service life of filter plate; and cost is reduced, it can be widely used for sewage treatment field.
Description
Technical field
The invention belongs to the technical field of sewage disposal, a kind of inexpensive sewage greasy dirt filter plate and preparation side are provided
Method.
Background technology
Currently, the problem of water pollution getting worse, not only the problems such as living garbage pollution water source, lake eutrophication
It is quite severe, and because of industrial production, sea transport etc., cause the oil pollutions getting worse such as river, lake, ocean.Especially
Be oil pollution event occur after, oil float across the sea, diffuse to form oil film rapidly, can by diffusion, evaporation, dissolving,
Emulsification, light degradation and biodegradation and absorption etc. are migrated, are converted.Oils can attach on the fish gill, and fish is made to suffocate, and inhibit
Aquatic bird lays eggs and hatching.Oil film formation can hinder the reoxygenation of water body to act on, and influence halomereid growth, destroy marine ecology
Balance.
The oil pollution of lake, seawater is administered mainly using absorption, sprinkling Chemical treatment at present.But existing absorption
Technology can only extensive ground recovery section greasy dirt, can not thoroughly clean the water surface；New chemical course is sprayed, by chemical reaction, is promoted
Into the decomposition or sedimentation of greasy dirt, the microscopic, spherical object that can be melt into water is formed, but be possible using the drawbacks of chemical reagent
Cause secondary pollution, destroys Ecology.The oil pollution of water body is administered using microorganism decomposition greasy dirt, but due to microorganism point
Solution is slow, imitated and is not obvious, and since the intermediate that microorganism decomposition generates is mostly harmful substance, can be made to aqueous bio
At influence.
Therefore, filtration method becomes a kind of common sewage disposal technology, currently used filtering skill because its is simple and efficient
Art is mainly membrane filtration, and membrane filtration technique is also known as by the membrane separation technique of motive force of pressure, it is the one of depth-averaged model
Kind advanced means can be divided into reverse osmosis, nanofiltration, ultrafiltration and microfiltration etc. according to the difference of film selectivity.Research is more efficient and low
The sewage disposal membrane filtration technique of cost is the important topic of environmental protection industry (epi), is increasingly paid attention to by people.
At present one has been achieved in terms of effluent treatment and filtering technology, the especially filtering materials such as sewage water filtration film both at home and abroad
Determine effect.Wherein Wang Tianfu et al. has invented a kind of preparation method of aeroge carbon fiber composite filtering film（Chinese invention patent
Application number 201611049884.5）, aeroge is dissolved in solvent, dispersant is added, then by 0.1mm carbon fiber pass into solutions
In, it stirs evenly；Adhesive is added, is coated on basement membrane after stirring evenly, obtains aeroge carbon fibre composite filter membrane；
This method is simple for process, and the aeroge filter membrane of preparation had both had the low-density of aeroge, high-specific surface area and high porosity spy
Point, while but also with carbon fiber physical characteristic, adsorption effect is good, it is soft not easy to break.In addition, Chou Yingying et al. has invented one kind
The preparation method of antipollution composite filtering film（Chinese invention patent application number 201610469765.9）, for current for reduction film
The taken method and process of pollution is complicated, and surface coating is easy to fall off, it is difficult to obtain uniform Modified Membrane, while oil recovery treatment
Filter membrane preparation process it is complicated, therefore the cost is relatively high, and the problem of be not easy to regenerate, and the present invention passes through expanded graphite high temperature
Activation, then it mix with polyoxyethylene carboxylate to progress surface modification, improves the hydrophily of film, then by with poly- second two
Alcohol, the mixing of soybean separation protein bletilla sodium hydroxyethlcellulose, under Titanium Dioxide, using ferulic acid as crosslinking agent, are being screened
Under the action of strain, internal structure modification is carried out, while wrapping up enzyme decomposing pollutant, increases resistance tocrocking, finally by electronics
The modified mechanical strength for increasing filter membrane, not easily to fall off, the antipollution compound mistake of high mechanical strength uniform to be prepared into structure
Filter membrane.
As it can be seen that when effluent treatment and filtering film in the prior art, filter plate etc. are used for sewage purification, there are of high cost, make
With short life, it is easy to block, water flux is smaller, it is difficult to the shortcomings of adapting to a large amount of filter sewages.
Invention content
For such case, it is proposed that a kind of low cost sewage greasy dirt filter plate and preparation method, mainly use hair
Bubble technique prepares concrete layer, and the silica dioxide gel liquid for being compounded with glass fibre is then coated in foamed concrete surface,
Coagulant liquid part is set to penetrate into foamed concrete layer, predrying makes coagulant liquid form a film, then sprays calcium salt soln, by high strength polymer
Fibrous woven layer is bonded on gel layer, is further dried to obtain sewage water filtration plate.Filter plate intensity made from the method is high, tough
Property is good, and service life is long, at low cost, and can reach the filter effect of ultrafiltration membrane.
To achieve the above object, specific technical solution of the present invention is as follows：
A kind of preparation method of low cost sewage greasy dirt filter plate, first prepares concrete layer, then by glass using foam process
Fiber is added in silica dioxide gel liquid, and aerogel layer is made in the surface coated on foamed concrete layer, further will be high-strength
Polymer fiber textle layers are bonded on aerogel layer, and sewage water filtration plate is made, and preparation is as follows：
（1）Foaming agent high-speed stirred is blistered, is uniformly mixed with concrete grout, mold is then poured into and is molded, 10 ~ 12h of thermal curing,
Foamed concrete layer is made；Wherein：4 ~ 8 parts by weight of foaming agent, 92 ~ 96 parts by weight of concrete grout；
（2）Glass fibre is added in silica dioxide gel liquid, is stirred evenly, step is coated on（1）Foamed concrete obtained
The surface of layer makes coagulant liquid part penetrate into foamed concrete layer, and then 30 ~ 50min of predrying at 80 ~ 90 DEG C, makes gel
Liquid forms a film, and aerogel layer is made；Wherein：15 ~ 25 parts by weight of glass fibre, 75 ~ 85 parts by weight of silica dioxide gel liquid；
（3）In step（2）The calcium salt soln of the surface coating quality a concentration of 20 ~ 30% of aerogel layer obtained as adhesive linkage,
Then high-strength polymer fiber textle layers are bonded on aerogel layer, 20 ~ 35min are further dried at 100 ~ 120 DEG C, i.e.,
Inexpensive sewage greasy dirt filter plate can be made.
The concrete grout selects conventional foamed concrete slurry, is matched by cement, water, flyash, aggregate, additive
It makes.Such as by the cement of 30 parts by weight, the water of 35 parts by weight, the flyash of 10 parts by weight, the fine sand aggregate of 15 parts by weight, 1
The acrylate re-dispersible glue powder of parts by weight is formulated.It can also be according to requiring to increase other ingredients such as chopped strand, have
Machine high molecular polymer etc..
Preferably, step（1）The foaming agent is that lauryl sodium sulfate/polyethylene glycol compounds foaming agent, dodecyl
At least one of sodium sulphate/saponin solution compounding foaming agent, glycosyl polyoxyethylene ether, alpha-olefin sodium sulfonate.
Preferably, step（2）The glass fibre is alkali-free glass fibre, and sodium oxide content is not higher than 0.5%.
Preferably, step（2）The solid content of the silica dioxide gel liquid is 30 ~ 40%.
Preferably, step（3）The calcium salt be calcium chloride, calcium bisulfate, calcium nitrate, calcium bromide, in calcium bicarbonate extremely
Few one kind.
Preferably, step（3）The polymer fiber is polypropylene fibre, Fypro, polyacrylonitrile fibre, polyester
At least one of fiber.
The present invention also provides the inexpensive sewage greasy dirt filter plates that a kind of above-mentioned preparation method is prepared.
Preferably, the sewage water filtration plate includes supporting layer, filter layer, front water layer.
Preferably, the supporting layer is foamed concrete layer, and thickness is 5 ~ 20mm.
Preferably, the filter layer is aerogel layer, and thickness is 1 ~ 3mm.
Preferably, the front water layer is high-strength polymer fiber textle layers, and thickness is 0.5 ~ 2mm.
This method first prepares concrete layer using foam process, and then glass fibre is added in silica dioxide gel liquid,
And aerogel layer is made in the surface coated on foamed concrete layer, and high-strength polymer fiber textle layers are further bonded in airsetting
On glue-line, sewage water filtration plate is made.Compared with conventional method, the inexpensive sewage greasy dirt filter plate of preparation of the invention it is high-strength
There is polymer fiber textle layers good toughness, can effectively protect filter plate not to be damaged by Sewage shock, utilize silica
Aeroge forms special micropore, the pollutants such as greasy dirt, microparticle object and bacteria particles that can be effectively in filter sewage, filterability
The filtering function of ultrafiltration membrane can be reached, while using foamed concrete layer as supporting layer, effectively extend the service life of filter plate,
And cost is reduced, it can be widely used for sewage treatment field.
The present invention provides a kind of inexpensive sewage greasy dirt filter plate and preparation methods to protrude compared with prior art
The characteristics of and excellent effect be：
1. inexpensive sewage greasy dirt filter plate prepared by the present invention, strainability reach the filtering function of ultrafiltration membrane, can use extensively
In the sewage treatment field that greasy dirt seriously pollutes.
2. using high-strength polymer fiber textle layers as front water layer in the preparation of the present invention, there is good toughness,
Can effectively protect filter plate is not damaged by Sewage shock, improves endurance quality.
It, can be effectively in filter sewage 3. filter plate prepared by the present invention forms special micropore using aerosil
The pollutants such as greasy dirt, microparticle object and bacteria particles.
4. the filter plate of the preparation of the present invention, using foamed concrete layer as supporting layer, effectively extend filter plate uses the longevity
Life, and reduce cost.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
It is uniform with the concrete grout of 95kg by the lauryl sodium sulfate of 5kg/polyethylene glycol compounding foaming agent high-speed stirred blistering
Mixing, the concrete grout by the cement of 30 parts by weight, the water of 35 parts by weight, the flyash of 10 parts by weight, 15 parts by weight it is thin
Sand aggregate, 1 parts by weight acrylate re-dispersible glue powder be formulated；Then mold molding is poured into, heat is supported at 50-60 DEG C
11h is protected, foamed concrete layer is made；The silica dioxide gel liquid that 79kg solid contents are 36% is added in 21kg alkali-free glass fibres
In, it stirs evenly, is coated on the surface of foamed concrete layer, then the predrying 42min at 86 DEG C, aerogel layer is made；
The calcium chloride solution of the surface coating quality a concentration of 24% of aerogel layer forms adhesive linkage, then spins High-strength polypropylene fiber
Tissue layer is bonded on aerogel layer, and 28min is further dried at 110 DEG C, you can low cost sewage greasy dirt filter plate is made.It should
Sewage water filtration plate includes supporting layer, filter layer, front water layer；Supporting layer is foamed concrete layer, thickness 14mm；Filter layer
For aerogel layer, thickness 2mm；Front water layer is high-strength polymer fiber textle layers, thickness 1.2mm.
Test method：
It is used for filter plate prepared by the present invention to be filtered processing to the sewage of oil-containing 300mg/L, averagely contain after filtered
It is oily as shown in table 1；
It is used for filter plate produced by the present invention to be filtered processing to the sewage of oil-containing 300mg/L, carries out water treatment by membrane examination
It tests, the analytical unit time（1h）It is interior to penetrate 1m2The volume of the water of filter plate obtains the water flux of filter plate, indicates filter plate
Sewage water filtration ability, test the data obtained are as shown in table 1.
Embodiment 2
It is uniform with the concrete grout of 96kg by the lauryl sodium sulfate of 4kg/saponin solution compounding foaming agent high-speed stirred blistering
Mixing, then pours into mold molding, and foamed concrete layer is made in thermal curing 10h；15kg alkali-free glass fibres addition 85kg is consolidated
It in the silica dioxide gel liquid that content is 30%, stirs evenly, is coated on the surface of foamed concrete layer, it is then pre- at 80 DEG C
Dry 50min, is made aerogel layer；In the calcium bisulfate solution of the surface coating quality of aerogel layer a concentration of 20%, then will
High-strength Fypro textle layers are bonded on aerogel layer, and 35min is further dried at 100 DEG C, you can low cost is made
Sewage greasy dirt filter plate.The sewage water filtration plate includes supporting layer, filter layer, front water layer；Supporting layer is foamed concrete layer,
Thickness is 5mm；Filter layer is aerogel layer, thickness 1mm；Front water layer is high-strength polymer fiber textle layers, and thickness is
2mm。
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Embodiment 3
The glycosyl polyoxyethylene ether high-speed stirred of 8kg is blistered, is uniformly mixed with the concrete grout of 92kg, then pour into mold at
Foamed concrete layer is made in type, thermal curing 12h；The silica that 75kg solid contents are 40% is added in 25kg alkali-free glass fibres
It in coagulant liquid, stirs evenly, is coated on the surface of foamed concrete layer, then the predrying 30min at 90 DEG C, aeroge is made
Layer；The surface coating quality of aerogel layer a concentration of 30% calcium nitrate solution as adhesive linkage, then by high-strength polyacrylonitrile
Fibrous woven layer is bonded on aerogel layer, and 20min is further dried at 120 DEG C, you can low cost sewage greasy dirt mistake is made
Filter plate.The sewage water filtration plate includes support layer, filter layer, front water layer；Supporting layer is foamed concrete layer, thickness 20mm；
Filter layer is aerogel layer, thickness 3mm；Front water layer is high-strength polymer fiber textle layers, thickness 2mm.
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Embodiment 4
The alpha-olefin sodium sulfonate high-speed stirred of 6kg is blistered, is uniformly mixed with the concrete grout of 94kg, then pour into mold at
Foamed concrete layer is made in type, thermal curing 10.5h；The titanium dioxide that 82kg solid contents are 32% is added in 18kg alkali-free glass fibres
It in Silica hydrogel liquid, stirs evenly, is coated on the surface of foamed concrete layer, then the predrying 45min at 82 DEG C, airsetting is made
Glue-line；The surface coating quality of aerogel layer a concentration of 22% calcium bromide solution thin layer as adhesive linkage, then will be high-strength poly-
Ester fiber textle layers are bonded on aerogel layer, and 32min is further dried at 105 DEG C, you can low cost sewage greasy dirt is made
Filter plate.The sewage water filtration plate includes supporting layer, filter layer, front water layer composition；Supporting layer is foamed concrete layer, thickness
For 8mm；Filter layer is aerogel layer, thickness 1mm；Front water layer is high-strength polymer fiber textle layers, and thickness is
1.1mm。
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Embodiment 5
It is uniform with the concrete grout of 93kg by the lauryl sodium sulfate of 7kg/polyethylene glycol compounding foaming agent high-speed stirred blistering
Mixing, then pours into mold molding, and foamed concrete layer is made in thermal curing 11.5h；78kg is added in 22kg alkali-free glass fibres
It in the silica dioxide gel liquid that solid content is 38%, stirs evenly, the surface of foamed concrete layer is coated on, then at 88 DEG C
Aerogel layer is made in predrying 35min；In the calcium bicarbonate solution of the surface coating quality of aerogel layer a concentration of 28%, then
High-strength polypropylene fiber textle layers are bonded on aerogel layer, 32min is further dried at 110 DEG C, you can be made it is low at
This sewage greasy dirt filter plate.The sewage water filtration plate includes supporting layer, filter layer, front water layer；Supporting layer is foamed concrete
Layer, thickness 15mm；Filter layer is aerogel layer, thickness 3mm；Front water layer is high-strength polymer fiber textle layers, thick
Degree is 1.6mm.
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Embodiment 6
It is uniform with the concrete grout of 94kg by the lauryl sodium sulfate of 6kg/saponin solution compounding foaming agent high-speed stirred blistering
Mixing, then pours into mold molding, and foamed concrete layer is made in thermal curing 11h；20kg alkali-free glass fibres addition 80kg is consolidated
It in the silica dioxide gel liquid that content is 35%, stirs evenly, is coated on the surface of foamed concrete layer, it is then pre- at 85 DEG C
Dry 40min, is made aerogel layer；It, then will be high in the calcium chloride solution of the surface coating quality of aerogel layer a concentration of 25%
Strong Fypro textle layers are bonded on aerogel layer, and 28min is further dried at 110 DEG C, you can it is dirty that low cost is made
Water greasy dirt filter plate.The sewage water filtration plate includes supporting layer, filter layer, front water layer；Supporting layer is foamed concrete layer, thick
Degree is 15mm；Filter layer is aerogel layer, thickness 2mm；Front water layer is high-strength polymer fiber textle layers, and thickness is
1mm。
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Comparative example 1
It is uniform with the concrete grout of 94kg by the lauryl sodium sulfate of 6kg/saponin solution compounding foaming agent high-speed stirred blistering
Mixing, then pours into mold molding, and foamed concrete layer is made in thermal curing 11h；20kg alkali-free glass fibres addition 80kg is consolidated
It in the silica dioxide gel liquid that content is 35%, stirs evenly, is coated on the surface of foamed concrete layer, it is then pre- at 85 DEG C
Dry 40min, is made aerogel layer, you can low cost sewage greasy dirt filter plate is made.The sewage water filtration plate includes supporting layer, mistake
Filtering layer；Supporting layer is that foaming coagulation blisters the lauryl sodium sulfate of 6kg/saponin solution compounding foaming agent high-speed stirred, with
The concrete grout of 94kg uniformly mixes, and then pours into mold molding, and foamed concrete layer is made in thermal curing 11h；By 20kg alkali-frees
Glass fibre is added in the silica dioxide gel liquid that 80kg solid contents are 35%, stirs evenly, and is coated on the table of foamed concrete layer
Face, then the predrying 40min at 85 DEG C, is made aerogel layer；In the chlorine of the surface coating quality of aerogel layer a concentration of 25%
Change calcium solution, then high-strength Fypro textle layers be bonded on aerogel layer, 28min is further dried at 110 DEG C,
It can be prepared by inexpensive sewage greasy dirt filter plate.The sewage water filtration plate includes supporting layer, filter layer, front water layer；Supporting layer
For foamed concrete layer, thickness 15mm；Filter layer is aerogel layer, thickness 0.5mm；Front water layer is high strength polymer
Fibrous woven layer, thickness 1mm.
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Comparative example 2
It is uniform with the concrete grout of 94kg by the lauryl sodium sulfate of 6kg/saponin solution compounding foaming agent high-speed stirred blistering
Mixing, then pours into mold molding, and foamed concrete layer is made in thermal curing 11h；In the surface coating quality concentration of concrete layer
For 25% calcium chloride solution, then high-strength Fypro textle layers are bonded on concrete layer, at 110 DEG C further
Dry 28min, you can low cost sewage greasy dirt filter plate is made.The sewage water filtration plate includes supporting layer, front water layer；Support
Layer is foamed concrete layer, thickness 15mm；Front water layer is high-strength polymer fiber textle layers, thickness 1mm.
Test method is consistent with embodiment 1, and the data obtained is as shown in table 1.
Table 1：
Claims (10)
1. a kind of preparation method of low cost sewage greasy dirt filter plate, which is characterized in that first prepare concrete using foam process
Then layer glass fibre is added in silica dioxide gel liquid, and aerogel layer is made in the surface coated on foamed concrete layer,
Further high-strength polymer fiber textle layers are bonded on aerogel layer, sewage water filtration plate are made, the specific steps of preparation are such as
Under：
（1）Foaming agent high-speed stirred is blistered, is uniformly mixed with concrete grout, mold is then poured into and is molded, 10 ~ 12h of thermal curing,
Foamed concrete layer is made；Wherein：4 ~ 8 parts by weight of foaming agent, 92 ~ 96 parts by weight of concrete grout；
（2）Glass fibre is added in silica dioxide gel liquid, is stirred evenly, step is coated on（1）Foamed concrete obtained
The surface of layer makes coagulant liquid part penetrate into foamed concrete layer, and then 30 ~ 50min of predrying at 80 ~ 90 DEG C, makes gel
Liquid forms a film, and aerogel layer is made；Wherein：15 ~ 25 parts by weight of glass fibre, 75 ~ 85 parts by weight of silica dioxide gel liquid；
（3）In step（2）The calcium salt soln of the surface coating quality a concentration of 20 ~ 30% of aerogel layer obtained as adhesive linkage,
Then high-strength polymer fiber textle layers are bonded on aerogel layer, 20 ~ 35min are further dried at 100 ~ 120 DEG C, i.e.,
Inexpensive sewage greasy dirt filter plate can be made.
2. a kind of preparation method of inexpensive sewage greasy dirt filter plate according to claim 1, it is characterised in that：Step（1）
The foaming agent is that lauryl sodium sulfate/polyethylene glycol compounds foaming agent, lauryl sodium sulfate/saponin solution compounding foaming
At least one of agent, glycosyl polyoxyethylene ether, alpha-olefin sodium sulfonate.
3. a kind of preparation method of inexpensive sewage greasy dirt filter plate according to claim 1, it is characterised in that：Step（2）
The glass fibre is alkali-free glass fibre, and sodium oxide content is not higher than 0.5%.
4. a kind of preparation method of inexpensive sewage greasy dirt filter plate according to claim 1, it is characterised in that：Step（2）
The solid content of the silica dioxide gel liquid is 30 ~ 40%m.
5. a kind of preparation method of inexpensive sewage greasy dirt filter plate according to claim 1, it is characterised in that：Step（3）
The calcium salt is at least one of calcium chloride, calcium bisulfate, calcium nitrate, calcium bromide, calcium bicarbonate.
6. a kind of preparation method of inexpensive sewage greasy dirt filter plate according to claim 1, it is characterised in that：Step（3）
The polymer fiber is at least one of polypropylene fibre, Fypro, polyacrylonitrile fibre, polyester fiber.
7. the inexpensive sewage greasy dirt filter plate that any one of claim 1 ~ 6 preparation method is prepared, it is characterised in that：
The sewage water filtration plate includes supporting layer, filter layer, front water layer.
8. a kind of inexpensive sewage greasy dirt filter plate according to claim 7, it is characterised in that：The supporting layer is that foaming is mixed
Solidifying soil layer, thickness are 5 ~ 20mm.
9. a kind of inexpensive sewage greasy dirt filter plate according to claim 7, it is characterised in that：The filter layer is aeroge
Layer, thickness are 1 ~ 3mm.
10. a kind of inexpensive sewage greasy dirt filter plate according to claim 7, it is characterised in that：The front water layer is
High-strength polymer fiber textle layers, thickness are 0.5 ~ 2mm.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441023A (en) * | 2018-11-06 | 2019-03-08 | 河南金拇指防水科技股份有限公司 | A kind of method that water-proof acrylic acid paint is laid with |
| CN110304879A (en) * | 2019-06-28 | 2019-10-08 | 济南大学 | A kind of method making concrete with water body purification function and the concrete with water body purification function |
| CN110759548A (en) * | 2019-12-04 | 2020-02-07 | 瀚蓝(福清)固废处理有限公司 | Combined purification treatment method for landfill leachate membrane separation system |
-
2018
- 2018-03-14 CN CN201810210433.8A patent/CN108339325A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441023A (en) * | 2018-11-06 | 2019-03-08 | 河南金拇指防水科技股份有限公司 | A kind of method that water-proof acrylic acid paint is laid with |
| CN110304879A (en) * | 2019-06-28 | 2019-10-08 | 济南大学 | A kind of method making concrete with water body purification function and the concrete with water body purification function |
| CN110759548A (en) * | 2019-12-04 | 2020-02-07 | 瀚蓝(福清)固废处理有限公司 | Combined purification treatment method for landfill leachate membrane separation system |
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