CN109467145A - A kind of organic waste water treatment agent containing porous sepiolite - Google Patents

A kind of organic waste water treatment agent containing porous sepiolite Download PDF

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Publication number
CN109467145A
CN109467145A CN201811514224.9A CN201811514224A CN109467145A CN 109467145 A CN109467145 A CN 109467145A CN 201811514224 A CN201811514224 A CN 201811514224A CN 109467145 A CN109467145 A CN 109467145A
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parts
sepiolite
waste water
porous
treatment agent
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陈镇
单艳艳
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Hunan Institute of Engineering
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Hunan Institute of Engineering
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Priority to CN201811514224.9A priority Critical patent/CN109467145A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/285Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/286Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds

Abstract

The invention discloses a kind of organic waste water treatment agent containing porous sepiolite, the formula of the organic waste water treatment agent containing porous sepiolite is as follows: calculating by composition quality specific gravity: porous sepiolite 40-60 parts, 10-15 parts of bentonite, 10-15 parts of active carbon, 2-5 parts of activated sludge, 15-20 parts of polymeric aluminium ferrum silicate, 2-5 parts of starch, 3-8 parts of organic acid, 10-15 parts of ammonium persulfate, 0.3-3 parts of borax, 25-30 parts of polyacrylamide, 8-15 parts of diatomite, 5-8 parts of zinc sulfate, 5-8 parts of sodium acetate, 5-8 parts of calcium sulfate.A kind of organic waste water treatment agent containing porous sepiolite provided by the invention, sepiolite has extremely strong absorption, decoloration and dispersion performance, the processing of organic sewage is carried out by sepiolite, and the organic matter after adsorbing will not reduce decomposition efficiency, sewage treatment speed is substantially increased, and through activated sludge in conjunction with sepiolite, so that microbial adherence is on sepiolite, convenient for decomposing to the organic matter that sepiolite adsorbs, sewage treatment capacity is improved.

Description

A kind of organic waste water treatment agent containing porous sepiolite
Technical field
The invention belongs to technical field of sewage, more specifically more particularly to a kind of having containing porous sepiolite Machine waste water treating agent.Meanwhile the invention further relates to a kind of preparation methods of organic waste water treatment agent containing porous sepiolite.
Background technique
Organic wastewater is exactly the waste water based on organic pollutant, and organic wastewater easily causes Water Eutrophication, hazard ratio It is larger.Organic wastewater is generally referred to by the discharge of the industries such as printing and dyeing, papermaking, leather and food in 2000mg/L or more waste water.? In the industrial wastewaters such as textile printing and dyeing, sanitary sewage, food processing and papermaking, containing material of having illicit sexual relations, carbohydrate, protein, oil The organic substances such as rouge, lignin.These substances can pass through the bioid of microorganism to suspend or dissolved state is present in sewage Act on and decompose.It needs to consume oxygen, thus referred to as oxygen consumption pollutant in its decomposable process.This pollutant can cause Oxygen in water is reduced, and influences the growth of fish He other aquatiles.After oxygen in water exhausts, organic matter carries out anaerobism point Solution generates the bad smells such as hydrogen sulfide, ammonia and mercaptan, makes water quality deterioration.Organic components are extremely complex in water body, and oxygen consumption is organic Consumed oxygen amount indicates during aerobic substance biochemical decomposition in object concentration conventional unit volume of water.
When organic wastewater is handled, sewage treatment is usually carried out using absorption method, however in processing, using object When reason absorption, after general inorganic agent adsorption effect is poor, and absorption reaches saturation, effect is reduced, and the organic matter after absorption Decomposition efficiency reduces, and the processing time of sludge is longer.Therefore it is proposed that a kind for the treatment of of Organic Wastewater containing porous sepiolite Agent and preparation method thereof.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and the one kind proposed contains porous sepiolite Organic waste water treatment agent and preparation method thereof.
To achieve the above object, the invention provides the following technical scheme:
A kind of organic waste water treatment agent containing porous sepiolite, the organic waste water treatment agent containing porous sepiolite Formula it is as follows: by composition quality specific gravity calculate: porous sepiolite 40-60 parts, 10-15 parts of bentonite, 10-15 parts of active carbon, 2-5 parts of activated sludge, 15-20 parts of polymeric aluminium ferrum silicate, 2-5 parts of starch, 3-8 parts of organic acid, 10-15 parts of ammonium persulfate, borax 0.3-3 parts, 25-30 parts of polyacrylamide, 8-15 parts of diatomite, 5-8 parts of zinc sulfate, 5-8 parts of sodium acetate, 5-8 parts of calcium sulfate.
Preferably, the formula of the organic waste water treatment agent containing porous sepiolite is as follows: pressing composition quality densimeter Calculate: 40 parts of porous sepiolite, 10 parts of bentonite, 10 parts of active carbon, 2 parts of activated sludge, 15 parts of polymeric aluminium ferrum silicate, 2 parts of starch, 3 parts of organic acid, 10 parts of ammonium persulfate, 0.3 part of borax, 25 parts of polyacrylamide, 8 parts of diatomite, 5 parts of zinc sulfate, sodium acetate 5 Part, 5 parts of calcium sulfate.
Preferably, the formula of the organic waste water treatment agent containing porous sepiolite is as follows: pressing composition quality densimeter Calculate: 60 parts of porous sepiolite, 15 parts of bentonite, 15 parts of active carbon, 5 parts of activated sludge, 20 parts of polymeric aluminium ferrum silicate, 5 parts of starch, 8 parts of organic acid, 15 parts of ammonium persulfate, 3 parts of borax, 30 parts of polyacrylamide, 15 parts of diatomite, 8 parts of zinc sulfate, 8 parts of sodium acetate, 8 parts of calcium sulfate.
Preferably, the formula of the organic waste water treatment agent containing porous sepiolite is as follows: pressing composition quality densimeter Calculate: 50 parts of porous sepiolite, 13 parts of bentonite, 12 parts of active carbon, 3 parts of activated sludge, 18 parts of polymeric aluminium ferrum silicate, 4 parts of starch, 6 parts of organic acid, 12 parts of ammonium persulfate, 1.5 parts of borax, 28 parts of polyacrylamide, 12 parts of diatomite, 7 parts of zinc sulfate, sodium acetate 6 Part, 6 parts of calcium sulfate.
Preferably, the starch is tapioca.
Preferably, the organic acid is one of oxalic acid, citric acid or tartaric acid.
The present invention also provides a kind of preparation methods of organic waste water treatment agent containing porous sepiolite, including walk as follows It is rapid:
S1, it porous sepiolite is put into pulverizer crushing, and screened by sieve, sieve is provided with two groups, and one Group is 10 mesh, and one group is 20 mesh, and the diameter of the porous sepiolite after screening is 10-20 mesh;
S2, porous sepiolite, bentonite, diatomite, starch and activated sludge are sufficiently mixed, and be added with it is more Hole sepiolite, bentonite, diatomite, starch and the isometric distilled water of activated sludge, are heated to 30-40 DEG C of heat preservation 10-12 Hour;
S3, it after drying the mixture for completing S2, is put into mixing machine, and active carbon, polymerization silicon is added in mixing machine Sour ferro-aluminum, organic acid, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate, and be stirred;
S4, mixture vacuum packaging or the nitrogen-filled packaging that will complete S3, complete preparation.
Preferably, Zoogloea bacteria and filamentous fungi microorganism are contained on the activated sludge.
Preferably, the active carbon, polymeric aluminium ferrum silicate, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate It is the granular structure of 80-100 mesh with calcium sulfate.
A kind of technical effect and advantage of the invention: treatment of Organic Wastewater containing porous sepiolite provided by the invention Agent, sepiolite have extremely strong absorption, decoloration and dispersion performance, the processing of organic sewage are carried out by sepiolite, is greatly improved Sewage treatment speed, and through activated sludge with sepiolite in conjunction with, so that microbial adherence on sepiolite, is convenient for Hai Pao The organic matter of stone absorption is decomposed, and improves sewage treatment capacity, and the organic matter after absorption will not reduce decomposition efficiency;This hair A kind of preparation method of organic waste water treatment agent containing porous sepiolite of bright offer, directly by sepiolite into the water with work Property sludge mixing so that bacterium grow and bred on sepiolite and carry out kept dry, easily fabricated, when use, contacts water Microorganism can be activated again by dividing, and will not be failed.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work Every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of organic waste water treatment agent containing porous sepiolite, the organic waste water treatment agent containing porous sepiolite Formula it is as follows: by composition quality specific gravity calculate: 40 parts of porous sepiolite, 10 parts of bentonite, 10 parts of active carbon, activated sludge 2 Part, 15 parts of polymeric aluminium ferrum silicate, 2 parts of starch, 3 parts of organic acid, 10 parts of ammonium persulfate, 0.3 part of borax, 25 parts of polyacrylamide, 8 parts of diatomite, 5 parts of zinc sulfate, 5 parts of sodium acetate, 5 parts of calcium sulfate.The starch is tapioca.The organic acid is grass Acid.
A kind of preparation method of the organic waste water treatment agent containing porous sepiolite of the present invention, includes the following steps:
S1, it porous sepiolite is put into pulverizer crushing, and screened by sieve, sieve is provided with two groups, and one Group is 10 mesh, and one group is 20 mesh, and the diameter of the porous sepiolite after screening is 10-20 mesh;
S2, porous sepiolite, bentonite, diatomite, starch and activated sludge are sufficiently mixed, and be added with it is more Hole sepiolite, bentonite, diatomite, starch and activated sludge are (true containing Zoogloea bacteria and filiform on the activated sludge Bacteria microorganism) isometric distilled water, it is heated to 30-40 DEG C of heat preservation 10-12 hours;
S3, it after drying the mixture for completing S2, is put into mixing machine, and active carbon, polymerization silicon is added in mixing machine Sour ferro-aluminum, organic acid, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate, and be stirred, The active carbon, polymeric aluminium ferrum silicate, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate are 80- The granular structure of 100 mesh;
S4, mixture vacuum packaging or the nitrogen-filled packaging that will complete S3, complete preparation.
Embodiment 2
A kind of organic waste water treatment agent containing porous sepiolite, the organic waste water treatment agent containing porous sepiolite Formula it is as follows: by composition quality specific gravity calculate: 60 parts of porous sepiolite, 15 parts of bentonite, 15 parts of active carbon, activated sludge 5 Part, 20 parts of polymeric aluminium ferrum silicate, 5 parts of starch, 8 parts of organic acid, 15 parts of ammonium persulfate, 3 parts of borax, 30 parts of polyacrylamide, silicon 15 parts of diatomaceous earth, 8 parts of zinc sulfate, 8 parts of sodium acetate, 8 parts of calcium sulfate.The starch is tapioca.The organic acid is lemon Acid.
A kind of preparation method of the organic waste water treatment agent containing porous sepiolite of the present invention, includes the following steps:
S1, it porous sepiolite is put into pulverizer crushing, and screened by sieve, sieve is provided with two groups, and one Group is 10 mesh, and one group is 20 mesh, and the diameter of the porous sepiolite after screening is 10-20 mesh;
S2, porous sepiolite, bentonite, diatomite, starch and activated sludge are sufficiently mixed, and be added with it is more Hole sepiolite, bentonite, diatomite, starch and activated sludge are (true containing Zoogloea bacteria and filiform on the activated sludge Bacteria microorganism) isometric distilled water, it is heated to 30-40 DEG C of heat preservation 10-12 hours;
S3, it after drying the mixture for completing S2, is put into mixing machine, and active carbon, polymerization silicon is added in mixing machine Sour ferro-aluminum, organic acid, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate, and be stirred, The active carbon, polymeric aluminium ferrum silicate, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate are 80- The granular structure of 100 mesh;
S4, mixture vacuum packaging or the nitrogen-filled packaging that will complete S3, complete preparation.
Embodiment 3
A kind of organic waste water treatment agent containing porous sepiolite, the organic waste water treatment agent containing porous sepiolite Formula it is as follows: by composition quality specific gravity calculate: 50 parts of porous sepiolite, 13 parts of bentonite, 12 parts of active carbon, activated sludge 3 Part, 18 parts of polymeric aluminium ferrum silicate, 4 parts of starch, 6 parts of organic acid, 12 parts of ammonium persulfate, 1.5 parts of borax, 28 parts of polyacrylamide, 12 parts of diatomite, 7 parts of zinc sulfate, 6 parts of sodium acetate, 6 parts of calcium sulfate.The starch is tapioca.The organic acid is wine Stone acid.
A kind of preparation method of the organic waste water treatment agent containing porous sepiolite of the present invention, includes the following steps:
S1, it porous sepiolite is put into pulverizer crushing, and screened by sieve, sieve is provided with two groups, and one Group is 10 mesh, and one group is 20 mesh, and the diameter of the porous sepiolite after screening is 10-20 mesh;
S2, porous sepiolite, bentonite, diatomite, starch and activated sludge are sufficiently mixed, and be added with it is more Hole sepiolite, bentonite, diatomite, starch and activated sludge are (true containing Zoogloea bacteria and filiform on the activated sludge Bacteria microorganism) isometric distilled water, it is heated to 30-40 DEG C of heat preservation 10-12 hours;
S3, it after drying the mixture for completing S2, is put into mixing machine, and active carbon, polymerization silicon is added in mixing machine Sour ferro-aluminum, organic acid, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate, and be stirred, The active carbon, polymeric aluminium ferrum silicate, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate are 80- The granular structure of 100 mesh;
S4, mixture vacuum packaging or the nitrogen-filled packaging that will complete S3, complete preparation.
The component list of three groups of embodiments is as follows:
In summary: a kind of organic waste water treatment agent containing porous sepiolite provided by the invention, sepiolite have pole Strong absorption, decoloration and dispersion performance is carried out the processing of organic sewage by sepiolite, substantially increases sewage treatment speed, And through activated sludge in conjunction with sepiolite, so that microbial adherence is on sepiolite, convenient for the organic matter adsorbed to sepiolite It is decomposed, improves sewage treatment capacity, and the organic matter after absorption will not reduce decomposition efficiency;One kind provided by the invention contains There is the preparation method of the organic waste water treatment agent of porous sepiolite, sepiolite is mixed with activated sludge into the water directly, is made Bacterium grow and is bred on sepiolite, and carry out kept dry, easily fabricated, contact wetting can activate again when use Microorganism will not fail.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention, Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features, All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention Within protection scope.

Claims (9)

1. a kind of organic waste water treatment agent containing porous sepiolite, it is characterised in that: described to contain the organic of porous sepiolite The formula of waste water treating agent is as follows: calculating by composition quality specific gravity: porous sepiolite 40-60 parts, 10-15 parts of bentonite, activity 10-15 parts of charcoal, 2-5 parts of activated sludge, 15-20 parts of polymeric aluminium ferrum silicate, 2-5 parts of starch, 3-8 parts of organic acid, ammonium persulfate 10- 15 parts, 0.3-3 parts of borax, 25-30 parts of polyacrylamide, 8-15 parts of diatomite, 5-8 parts of zinc sulfate, 5-8 parts of sodium acetate, sulfuric acid 5-8 parts of calcium.
2. a kind of organic waste water treatment agent containing porous sepiolite according to claim 1, it is characterised in that: described to contain There is the formula of the organic waste water treatment agent of porous sepiolite as follows: being calculated by composition quality specific gravity: 40 parts of porous sepiolite, swelling Native 10 parts, 10 parts of active carbon, 2 parts of activated sludge, 15 parts of polymeric aluminium ferrum silicate, 2 parts of starch, 3 parts of organic acid, ammonium persulfate 10 Part, 0.3 part of borax, 25 parts of polyacrylamide, 8 parts of diatomite, 5 parts of zinc sulfate, 5 parts of sodium acetate, 5 parts of calcium sulfate.
3. a kind of organic waste water treatment agent containing porous sepiolite according to claim 1, it is characterised in that: described to contain There is the formula of the organic waste water treatment agent of porous sepiolite as follows: being calculated by composition quality specific gravity: 60 parts of porous sepiolite, swelling Native 15 parts, 15 parts of active carbon, 5 parts of activated sludge, 20 parts of polymeric aluminium ferrum silicate, 5 parts of starch, 8 parts of organic acid, ammonium persulfate 15 Part, 3 parts of borax, 30 parts of polyacrylamide, 15 parts of diatomite, 8 parts of zinc sulfate, 8 parts of sodium acetate, 8 parts of calcium sulfate.
4. a kind of organic waste water treatment agent containing porous sepiolite according to claim 1, it is characterised in that: described to contain There is the formula of the organic waste water treatment agent of porous sepiolite as follows: being calculated by composition quality specific gravity: 50 parts of porous sepiolite, swelling Native 13 parts, 12 parts of active carbon, 3 parts of activated sludge, 18 parts of polymeric aluminium ferrum silicate, 4 parts of starch, 6 parts of organic acid, ammonium persulfate 12 Part, 1.5 parts of borax, 28 parts of polyacrylamide, 12 parts of diatomite, 7 parts of zinc sulfate, 6 parts of sodium acetate, 6 parts of calcium sulfate.
5. a kind of organic waste water treatment agent containing porous sepiolite according to claim 1, it is characterised in that: the shallow lake Powder is tapioca.
6. a kind of organic waste water treatment agent containing porous sepiolite according to claim 1, it is characterised in that: described Organic acid is one of oxalic acid, citric acid or tartaric acid.
7. a kind of preparation method of the organic waste water treatment agent described in claim 1 containing porous sepiolite, it is characterised in that: Include the following steps:
S1, it porous sepiolite is put into pulverizer crushes, and screened by sieve, sieve is provided with two groups, and one group is 10 mesh, one group is 20 mesh, and the diameter of the porous sepiolite after screening is 10-20 mesh;
S2, porous sepiolite, bentonite, diatomite, starch and activated sludge are sufficiently mixed, and are added and porous sea Afrodite, bentonite, diatomite, starch and the isometric distilled water of activated sludge, are heated to 30-40 DEG C of heat preservation 10-12 hours;
S3, it after drying the mixture for completing S2, is put into mixing machine, and active carbon, polymer aluminium silicate is added in mixing machine Iron, organic acid, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate, and be stirred;
S4, mixture vacuum packaging or the nitrogen-filled packaging that will complete S3, complete preparation.
8. a kind of preparation method of organic waste water treatment agent containing porous sepiolite according to claim 7, feature It is: contains Zoogloea bacteria and filamentous fungi microorganism on the activated sludge.
9. a kind of preparation method of organic waste water treatment agent containing porous sepiolite according to claim 7, feature Be: the active carbon, polymeric aluminium ferrum silicate, ammonium persulfate, borax, polyacrylamide, zinc sulfate, sodium acetate and calcium sulfate are equal For the granular structure of 80-100 mesh.
CN201811514224.9A 2018-12-04 2018-12-04 A kind of organic waste water treatment agent containing porous sepiolite Pending CN109467145A (en)

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CN110372079A (en) * 2019-07-10 2019-10-25 广西万鑫源环境科技工程有限公司 River water body dystopy processing flocculant and preparation method thereof
CN110921762A (en) * 2019-12-18 2020-03-27 陕西易莱德新材料科技有限公司 Water purification composite material for sewage treatment and preparation method thereof

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CN110921762A (en) * 2019-12-18 2020-03-27 陕西易莱德新材料科技有限公司 Water purification composite material for sewage treatment and preparation method thereof

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