CN107758823A - A kind of domestic sewage treating compound and preparation method thereof - Google Patents
A kind of domestic sewage treating compound and preparation method thereof Download PDFInfo
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- CN107758823A CN107758823A CN201711233525.XA CN201711233525A CN107758823A CN 107758823 A CN107758823 A CN 107758823A CN 201711233525 A CN201711233525 A CN 201711233525A CN 107758823 A CN107758823 A CN 107758823A
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- domestic sewage
- sewage treating
- treating compound
- carbon materials
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Classifications
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
Abstract
The invention discloses a kind of domestic sewage treating compound and preparation method thereof.The domestic sewage treating compound includes the raw material of following parts by weight：12~15 parts of polyferric chloride, 20~30 parts of sepiolite, modified 5~10 parts of silkworm excrement base multi-stage porous Carbon Materials, 10~15 parts of sodium hydroxide, 12~15 parts of polyacrylamide, 10~15 parts of sodium carbonate, biological 1~5 part of base porous compound material.Two kinds of new biological carbon materials are with the addition of in the inorganic agent of the present invention, enhance the adsorption cleaning ability of sewage-treating agent, again under the cooperation of other raw materials, resident living sewage can effectively be handled, high treating effect, advantage of lower cost, stable performance, the pollution after processing reach the sewage drainage standard of national regulation.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to sewage-treating agent and preparation method thereof.
Background technology
With the improvement of living standards, the increase of water consumption, caused sanitary sewage amount is also more and more.It is how effective
Processing sanitary sewage, it is always research topic to reduce and reduce pollution to environment.At present, the method for handling sanitary sewage
There are a variety of methods such as physics, chemistry, biology, synthesis.Physical method is to act on not dissolving in recovery sewage by physical separation
Suspended contaminant, filtering, centrifuge etc..Such physical method is simple, but can only do based process, treatment effect
Pollutant that is bad, being dissolved in water cannot be handled, and efficiency is low.Biological treatment is made by the metabolism of microorganism
The organic pollution of dissolving, colloid and suspended state is converted into stable harmless object in sewage.But this method equipment investment is big,
Operating cost is high, and is difficult to heavy-metal ion removal.Therefore, more to handle sewage using chemical method, chemical method is logical
Dispensing chemical reagent is crossed, makes it that the reaction such as neutralization, flocculation, redox occur with the pollutant in sewage and removes decontamination to reach
Contaminate the purpose of thing.It is more thorough that this mode handles sewage, and discharge standard can be reached after processing, and will to floor space
Ask small, effect is more obvious, therefore is generally used.The selection of sewage-treating agent so in chemical method, to prepare this be whole
The key of individual method.
The content of the invention
It is an object of the invention to provide a kind of domestic sewage treating compound and preparation method thereof.The inorganic agent of the present invention can have
Effect processing resident living sewage, high treating effect, advantage of lower cost, performance is relatively stable, and the pollution after processing reaches country
Defined sewage drainage standard.
The purpose of the present invention is achieved through the following technical solutions：
A kind of domestic sewage treating compound, it includes the raw material of following parts by weight：12~15 parts of polyferric chloride, Hai Pao
20~30 parts of stone, 20~30 parts of bentonite, it is modified 5~10 parts of silkworm excrement base multi-stage porous Carbon Materials, 10~15 parts of sodium hydroxide, gathers
12~15 parts of acrylamide, 10~15 parts of sodium carbonate, 1~5 part of biological base porous compound material.
Preferred as technical scheme, domestic sewage treating compound of the invention includes the raw material of following parts by weight：It polymerize trichlorine
Change 12~15 parts of iron, 25~30 parts of sepiolite, 25~30 parts of bentonite, 10~12 parts of sodium hydroxide, polyacrylamide 12~15
Part, 10~12 parts of sodium carbonate, biological 3~5 parts of base porous compound material, modified 5~8 parts of silkworm excrement base multi-stage porous Carbon Materials.
Preferred as technical scheme, domestic sewage treating compound of the invention includes the raw material of following parts by weight：It polymerize trichlorine
Change 15 parts of iron, 25 parts of sepiolite, 30 parts of bentonite, 10 parts of sodium hydroxide, 15 parts of polyacrylamide, 10 parts of sodium carbonate, bio-based
Composite porous 5 parts, modified 5 parts of silkworm excrement base multi-stage porous Carbon Materials.
Preferred as technical scheme, the preparation of the biological base porous compound material is by sodium carboxymethylcellulose gel
With trimesic acid solution according to mass ratio be 1~5：1 is uniformly mixed, and is subsequently poured into the copper sheet for being inserted with that angle of inclination is 15 °
Mould in, be then placed in freeze drier drying and can obtain biomass porous composite.Wherein carboxymethyl cellulose
Sodium gel is to mix under stirring sodium carboxymethylcellulose with water, you can obtains sodium carboxymethylcellulose gel；Equal benzene
Three acid solutions are that trimesic acid is dissolved in into ultrasonic dissolution in absolute ethyl alcohol, you can obtain trimesic acid solution.
Preferred as technical scheme, the preparation of the modified silkworm excrement base multi-stage porous Carbon Materials is Faeces bombycis and ZnCl2Solution
It is 1 according to solid-liquid ratio：It is freeze-dried after 80 mixing swellings, then rear silkworm excrement will be freezed in N2In, activation expansion is carried out at 600 DEG C
Hole is reacted 2 hours, and silkworm excrement base porous carbon material is obtained after then cleaning, centrifuge and drying again；Again by itself and copper-bath
It is 1 according to solid-liquid ratio：Drying is centrifuged after 80 vibration mixing, plasma reactor is placed into, is passed through O2, input voltage 20V,
Modification time 10min carries out surface modification, modified cleaning, and drying can obtain being modified silkworm excrement base multi-stage porous Carbon Materials.
The preparation method of the domestic sewage treating compound of the present invention, first according to parts by weight measure raw material, then by sepiolite,
Sodium carbonate, biological base porous compound material mixing, crush, cross 50~100 mesh, put into container in, add polyacrylamide,
Polyferric chloride continues to stir and evenly mix 10~20 minutes, adds sodium hydroxide and is stirred 10~20 minutes, control mixing
Temperature is less than 55 DEG C, is eventually adding modified silkworm excrement base multi-stage porous Carbon Materials, is uniformly mixed, you can obtain at sanitary sewage
Manage agent.
The application method of the domestic sewage treating compound of the present invention, 0.1~0.2kg is put into according to every 1 cubic metre of sanitary sewage
Domestic sewage treating compound, while start sewage stirrer 10~30 minutes so that domestic sewage treating compound is fully and waste water
Stop stirring afterwards, allow domestic sewage treating compound to be reacted with sewage.
The polyferric chloride of the present invention has good flocculating effect, and hydrolysis rate is fast, and aquation is weak, has wadding
Solidifying ability, easily forms alumen ustum, and closely knit, and sinking speed is fast, is influenceed by water temperature change small, can meet in flow process
The middle requirement for producing shearing force.Polyferric chloride can occur with the hydrogen sulfide in water, phosphate and alkaline hydrated oxide degree
Chemical reaction generation sediment, the sulfide precipitation in sewage is come out, it forms in alumen ustum and adsorbable water and is difficult to what is degraded
Material, it is the flocculant of high efficiency low cost.With obvious precipitation, deodorization, oil removing, sterilization, dephosphorization, reduction water outlet COD and BOD
And other effects.
Polyacrylamide is flocculant, can adsorb the suspended particulate in water, gradually forms big floc sedimentation, accelerates precipitation
Speed, and it has water-soluble polymer, flocculation can occur with material in water quickly.
Modified silkworm excrement base multi-stage porous Carbon Materials not only have native three dimensional pleated structure and containing a large amount of carboxyls, hydroxyl and
Amino group etc., and high-ratio surface microcellular structure is formed, these microcellular structures can adsorb heavy metal in sanitary sewage, and
Due to the increase of specific surface area, adsorbance substantially increases, while it contains carboxyl, hydroxyl and amino group, can with sewage
Polar group is had an effect, and accelerates the processing of sewage.
The hierarchical porous structure of three-dimensional network intercommunication is formed in biological base porous compound material, and with abundant nanometer
Hole surface, it is very beneficial for improving the absorption affinity to binding molecule, simultaneously because CMC has substantial amounts of hydroxy functional group, therefore
Material has obvious absorption affinity to the heavy metal in sewage.
Sodium carbonate in the present invention can decompose the organic substances such as protein common in sanitary sewage, fat, starch, make
Its lighter material is suspended in the water surface, and heavier species precipitate is water-bed, and can kill the microorganism in fire.
Sepiolite powder is a kind of hydrous magnesium silicate clay pure natural, nontoxic, tasteless, without asbestos, "dead" element
Mineral, there is the content pore passage structure of specific surface area (reaching as high as 900m2/g) maximum in nonmetallic mineral and uniqueness, be
The most strong clay mineral of adsorption capacity.
Bentonite (bentonite) is a kind of clay pit with montmorillonite (montmorillonite) for main component
Thing.Its chemical composition is aluminosilicate, chemical formula Al2O34SiO23H2O.The unit cell of microstructure is by two
Si2O tetrahedrons chip and the Al clipped between them2O or Al2OH octahedrons chip forms, and bentonite has stronger
Adsorptivity and ion exchangeable.
Compared with prior art, the invention has the advantages that：
(1) domestic sewage treating compound of the invention, two kinds of biomass carbon materials, modified silkworm excrement base multi-stage porous charcoal are added
Material and biological base porous compound material, the absorption of heavy metal element and some other polarity electronics in sewage can be significantly improved
Pollutant.Coordinate traditional flocculant, adsorbent simultaneously, rationally compounded by raw material, improve the processing effect to sanitary sewage
Rate so that sanitary sewage COD, BOD after processing are substantially reduced, and meet the discharge standard of national requirements.
(2) domestic sewage treating compound of the invention can also effectively act as inhibition, scale inhibition and the technology for suppressing algal grown
Effect, the fouling and corrosion of system are effectively reduced, reduce production cost, the clear for the treatment of tank is reduced while purifying sewage
Science and engineering sequence.
(3) handling process of the invention is simple, and dosage is few, high treating effect, stable performance, and effluent quality is good；Effectively
Ground reduces the cost of water process.
Embodiment
With reference to embodiment, the present invention will be further described, but the scope of protection of present invention is not limited to
In the scope of embodiment statement.
It is modified the previously prepared of silkworm excrement base multi-stage porous Carbon Materials：The preparation of modified silkworm excrement base multi-stage porous Carbon Materials be by
10kg silkworm excrements add 400L mass concentrations 0.50kg/L ZnCl2It is freeze-dried after solution swelling, then rear silkworm excrement will be freezed in N2
In, carry out activating reaming reaction 2 hours at 600 DEG C, silkworm excrement base porous charcoal is obtained after then cleaning, centrifuge and drying again
Material；It is again 1 according to solid-liquid ratio with 0.1mol/L copper-baths by it：Centrifuge drying after 40 vibration mixing, place into etc. from
Daughter reactor, is passed through O2, input voltage 20V, modification time 10min carry out surface modification, modified cleaning, drying
Obtain being modified silkworm excrement base multi-stage porous Carbon Materials.
Biological base porous compound material it is previously prepared：By 5kg sodium carboxymethylcelluloses and 50L water under stirring
Mixing, you can obtain sodium carboxymethylcellulose gel.5kg trimesic acids are dissolved in ultrasonic dissolution in 30L absolute ethyl alcohols, you can
Obtain trimesic acid solution.Then it is 1~5 according to mass ratio by sodium carboxymethylcellulose gel and trimesic acid solution：1 stirs
Mix it is well mixed, be subsequently poured into be inserted with angle of inclination be 15 ° copper sheet mould in, be then placed in -50 DEG C of freeze driers
Dry and can obtain biomass porous composite.
Embodiment 1
A kind of domestic sewage treating compound, raw material composition are：15 parts of polyferric chloride, 25 parts of sepiolite, bentonite 30
Part, 10 parts of sodium hydroxide, 15 parts of polyacrylamide, 10 parts of sodium carbonate, biological 5 parts of base porous compound material, modified silkworm excrement Quito
5 parts of level hole Carbon Materials.Raw material first is weighed according to raw material proportioning, then by sepiolite, sodium carbonate, biological base porous compound material
Mixing, crush, cross 100 mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 20 points
Clock, add sodium hydroxide and be stirred 15 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement Quito level
Hole Carbon Materials, are uniformly mixed, you can obtain domestic sewage treating compound.
Embodiment 2
A kind of domestic sewage treating compound, raw material composition are：12 parts of polyferric chloride, 30 parts of sepiolite, bentonite 25
Part, 12 parts of sodium hydroxide, 12 parts of polyacrylamide, 12 parts of sodium carbonate, biological 3 parts of base porous compound material, modified silkworm excrement Quito
8 parts of level hole Carbon Materials.Raw material first is weighed according to raw material proportioning, then by sepiolite, sodium carbonate, biological base porous compound material
Mixing, crush, cross 50 mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 15 minutes,
Add sodium hydroxide to be stirred 20 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement base multi-stage porous charcoal
Material, it is uniformly mixed, you can obtain domestic sewage treating compound.
Embodiment 3
A kind of domestic sewage treating compound, raw material composition are：13 parts of polyferric chloride, 28 parts of sepiolite, bentonite 28
Part, 10 parts of sodium hydroxide, 15 parts of polyacrylamide, 10 parts of sodium carbonate, biological 5 parts of base porous compound material, modified silkworm excrement Quito
6 parts of level hole Carbon Materials.Raw material first is weighed according to raw material proportioning, then by sepiolite, sodium carbonate, biological base porous compound material
Mixing, crush, cross 100 mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 10 points
Clock, add sodium hydroxide and be stirred 20 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement Quito level
Hole Carbon Materials, are uniformly mixed, you can obtain domestic sewage treating compound.
Embodiment 4
A kind of domestic sewage treating compound, raw material composition are：15 parts of polyferric chloride, 25 parts of sepiolite, bentonite 25
Part, 15 parts of sodium hydroxide, 12 parts of polyacrylamide, 15 parts of sodium carbonate, biological 1 part of base porous compound material, modified silkworm excrement Quito
10 parts of level hole Carbon Materials.Raw material first is weighed according to raw material proportioning, then by sepiolite, sodium carbonate, biological base porous compound material
Mixing, crush, cross 100 mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 10 points
Clock, add sodium hydroxide and be stirred 20 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement Quito level
Hole Carbon Materials, are uniformly mixed, you can obtain domestic sewage treating compound.
Embodiment 5
A kind of domestic sewage treating compound, raw material composition are：12 parts of polyferric chloride, 20 parts of sepiolite, bentonite 20
Part, 10 parts of sodium hydroxide, 15 parts of polyacrylamide, 12 parts of sodium carbonate, biological 5 parts of base porous compound material, modified silkworm excrement Quito
5 parts of level hole Carbon Materials.Raw material first is weighed according to raw material proportioning, then by sepiolite, sodium carbonate, biological base porous compound material
Mixing, crush, cross 100 mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 15 points
Clock, add sodium hydroxide and be stirred 15 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement Quito level
Hole Carbon Materials, are uniformly mixed, you can obtain domestic sewage treating compound.
By embodiment 1~5 prepare domestic sewage treating compound according to every 1 cubic metre of sanitary sewage input 0.1~
0.2kg domestic sewage treating compounds, while start sewage stirrer 10~30 minutes so that domestic sewage treating compound fully with dirt
Stop stirring after water contact, allow domestic sewage treating compound and sewage are anti-raw to act on.Using the domestic sewage treating compound of the present invention
Sewage after processing meets GB18918-2002《Urban wastewater treatment firm pollutant emission standard》.
Claims (8)
1. a kind of domestic sewage treating compound, it is characterised in that it includes the raw material of following parts by weight：Polyferric chloride 12~15
Part, 20~30 parts of sepiolite, 20~30 parts of bentonite, 10~15 parts of sodium hydroxide, 12~15 parts of polyacrylamide, sodium carbonate 10
~15 parts, 1~5 part of biological base porous compound material, modified 5~10 parts of silkworm excrement base multi-stage porous Carbon Materials.
2. domestic sewage treating compound according to claim 1, it is characterised in that the domestic sewage treating compound includes following
The raw material of parts by weight：12~15 parts of polyferric chloride, 25~30 parts of sepiolite, 25~30 parts of bentonite, sodium hydroxide 10~
12 parts, 12~15 parts of polyacrylamide, 10~12 parts of sodium carbonate, 3~5 parts of biological base porous compound material, modified silkworm excrement Quito
5~8 parts of level hole Carbon Materials.
3. domestic sewage treating compound according to claim 1, it is characterised in that the domestic sewage treating compound includes following
The raw material of parts by weight：15 parts of polyferric chloride, 25 parts of sepiolite, 30 parts of bentonite, 10 parts of sodium hydroxide, polyacrylamide 15
Part, 10 parts of sodium carbonate, 5 parts of biological base porous compound material, modified 5 parts of silkworm excrement base multi-stage porous Carbon Materials.
4. according to any described domestic sewage treating compound of claims 1 to 3, it is characterised in that：The bio-based is porous compound
It by sodium carboxymethylcellulose gel and trimesic acid solution according to mass ratio is 1~5 that the preparation of material, which is,：1 is uniformly mixed,
It is subsequently poured into and is inserted with the mould for the copper sheet that angle of inclination is 15 °, is then placed in drying in freeze drier and can obtain biology
Base porous compound material.
5. domestic sewage treating compound according to claim 4, it is characterised in that：The sodium carboxymethylcellulose gel be by
Sodium carboxymethylcellulose mixes with water under stirring, you can obtains sodium carboxymethylcellulose gel；Trimesic acid solution is
Trimesic acid is dissolved in ultrasonic dissolution in absolute ethyl alcohol, you can obtain trimesic acid solution.
6. according to any described domestic sewage treating compound of claims 1 to 3, it is characterised in that：Modified silkworm excrement Quito level
The preparation of hole Carbon Materials is by Faeces bombycis and ZnCl2Solution is 1 according to solid-liquid ratio：It is freeze-dried, then will freezes after 80 mixing swellings
Silkworm excrement is in N after dry2In carry out at 600 DEG C activating reaming and react 2 hours, then clean, centrifuge again, drying and obtain silkworm excrement Quito hole
Carbon Materials；It is again 1 according to solid-liquid ratio with copper-bath by it：80 vibration mixing, centrifugation drying, place into plasma reaction
Device, it is passed through O2, input voltage 20V, modification time 10min progress surface modification, modified cleaning, drying is that can obtain being modified silkworm
Husky base multi-stage porous Carbon Materials.
7. the preparation method of the domestic sewage treating compound as described in claim 1~6 is any, it is characterised in that first according to weight
Part weighs raw material, then mixes sepiolite, bentonite, sodium carbonate, biological base porous compound material, crushes, crosses 50~100
Mesh, put into container, add polyacrylamide, polyferric chloride continues to stir and evenly mix 10~20 minutes, add hydrogen-oxygen
Change sodium to be stirred 10~20 minutes, control mixing temperature is less than 55 DEG C, is eventually adding modified silkworm excrement base multi-stage porous Carbon Materials, stirs
Mix well mixed, you can obtain domestic sewage treating compound.
8. the application method of the domestic sewage treating compound as described in claim 1~6 is any, it is characterised in that according to every 1 cube
Rice sanitary sewage input 0.1~0.2kg domestic sewage treating compounds, while start sewage stirrer 10~30 minutes so that life
Sewage-treating agent fully with stopping stirring after waste water, allows domestic sewage treating compound to be reacted with sewage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711233525.XA CN107758823B (en) | 2017-11-30 | 2017-11-30 | Domestic sewage treatment agent and preparation method thereof |
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| CN201711233525.XA CN107758823B (en) | 2017-11-30 | 2017-11-30 | Domestic sewage treatment agent and preparation method thereof |
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| CN107758823B CN107758823B (en) | 2020-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108557916A (en) * | 2018-03-30 | 2018-09-21 | 河南金盾环保设备安装工程有限公司 | A kind of high efficiency sewage treating agent and preparation method thereof |
| CN108773886A (en) * | 2018-07-09 | 2018-11-09 | 佛山舒宜添科技有限公司 | A kind of textile waste cleanser and preparation method thereof |
| CN109847716A (en) * | 2018-12-10 | 2019-06-07 | 哈尔滨工程大学 | It is a kind of using natural minerals be base extraction of uranium from seawater adsorbent and preparation method thereof |
| CN110227415A (en) * | 2019-05-31 | 2019-09-13 | 上海应用技术大学 | The method for preparing acid gas adsorption agent as raw material using natural biomass silkworm excrement |
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|---|---|---|---|---|
| CN104355385A (en) * | 2014-10-27 | 2015-02-18 | 无锡伊佩克科技有限公司 | Industrial wastewater purification flocculant and preparation method thereof |
| CN105712495A (en) * | 2016-04-19 | 2016-06-29 | 肥东县柯文斌家庭农场 | Water body clarifying agent capable of improving water body self-purifying capacity |
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2017
- 2017-11-30 CN CN201711233525.XA patent/CN107758823B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104355385A (en) * | 2014-10-27 | 2015-02-18 | 无锡伊佩克科技有限公司 | Industrial wastewater purification flocculant and preparation method thereof |
| CN105712495A (en) * | 2016-04-19 | 2016-06-29 | 肥东县柯文斌家庭农场 | Water body clarifying agent capable of improving water body self-purifying capacity |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108557916A (en) * | 2018-03-30 | 2018-09-21 | 河南金盾环保设备安装工程有限公司 | A kind of high efficiency sewage treating agent and preparation method thereof |
| CN108773886A (en) * | 2018-07-09 | 2018-11-09 | 佛山舒宜添科技有限公司 | A kind of textile waste cleanser and preparation method thereof |
| CN109847716A (en) * | 2018-12-10 | 2019-06-07 | 哈尔滨工程大学 | It is a kind of using natural minerals be base extraction of uranium from seawater adsorbent and preparation method thereof |
| CN109847716B (en) * | 2018-12-10 | 2021-12-24 | 哈尔滨工程大学 | Natural mineral-based uranium extraction adsorbent from seawater and preparation method thereof |
| CN110227415A (en) * | 2019-05-31 | 2019-09-13 | 上海应用技术大学 | The method for preparing acid gas adsorption agent as raw material using natural biomass silkworm excrement |
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| CN107758823B (en) | 2020-05-08 |
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