CN108002472A - A kind of preparation method of domestic sewage treating compound - Google Patents

A kind of preparation method of domestic sewage treating compound Download PDF

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Publication number
CN108002472A
CN108002472A CN201711419435.XA CN201711419435A CN108002472A CN 108002472 A CN108002472 A CN 108002472A CN 201711419435 A CN201711419435 A CN 201711419435A CN 108002472 A CN108002472 A CN 108002472A
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parts
preparation
vermiculite
rare earth
domestic sewage
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不公告发明人
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Wuhu Wanjiang Intellectual Property Operation Center Co Ltd
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Wuhu Wanjiang Intellectual Property Operation Center Co Ltd
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • 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
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/722—Oxidation by peroxides
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/16—Total nitrogen (tkN-N)
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/18—PO4-P
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The present invention provides a kind of preparation method of domestic sewage treating compound, include the following steps：Bentonite and attapulgite are pre-processed through high-temperature roasting；It is then immersed in the mixed solution of molysite and aluminium salt composition, after adjusting pH, roasting has been loaded the bentonite and attapulgite of iron-aluminium oxide, then domestic sewage treating compound is prepared after it is mixed with rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon, and coordinates hydrogen peroxide to use when in use.The domestic sewage treating compound that preparation method provided by the invention is prepared, can there is higher removal rate to total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body in a short time, will not cause secondary pollution, and have the function of disinfection, it is antibacterial, flocculated.

Description

A kind of preparation method of domestic sewage treating compound
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of preparation method of domestic sewage treating compound.
Background technology
As the improvement of people's living standards, the discharge of sanitary sewage is increasingly severe, sanitary sewage is mainly people day Often caused various waste water in life, are mainly wash water, contain substantial amounts of cellulose, starch, carbohydrate in wash water With fat protein etc., the also chloride containing inorganic salts, sulfate, phosphate etc., its main feature is that the content of nitrogen phosphate and sulfur Height, easily produces foul smell under the action of anaerobic bacteria.
In recent years, the treatment process of sanitary sewage is also being continuously improved, and has bioremediation and physical treatment method etc.. Biological method processing time is grown, and speed is slow, and efficiency is low；Physical treatment method is costly, and processing is not thorough, and be easy to cause two Secondary pollution, does not reach discharge standard
The content of the invention
The deficiency for more than, the present invention provides a kind of preparation method of domestic sewage treating compound.
The technical solution that the present invention takes is：
A kind of preparation method of domestic sewage treating compound, the preparation method comprise the following steps：
(1) bentonite and attapulgite are pre-processed into 20~40min through 350~380 DEG C of high-temperature roastings；
(2) molysite and aluminium salt is soluble in water, the pH for adding lye adjusting water body is 9~11；
(3) bentonite and attapulgite obtained step (1) be added in the mixed liquor that step (2) obtains stirring 20~ 30min；Filter, after filter residue and drying through 420~460 DEG C of high-temperature roasting 2~4 it is small when, it is spare after natural cooling；
(4) product that step (3) obtains and rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon are mixed Close, it is 80~120 mesh that particle diameter is crushed to after stirring evenly, you can obtain the domestic sewage treating compound.
The parts by weight of each raw material are as follows：Rare earth modified 30~50 parts of vermiculite, 20~40 parts of bentonite, attapulgite 10 ~20 parts, 2~6 parts of molysite, 5~10 parts of aluminium salt, 10~20 parts of aluminium polychloride, 10~20 parts of bodied ferric sulfate, activated carbon 8~ 16 parts, 5~10 parts of hydrogen peroxide, 50~100 parts of water.
Further, the parts by weight of each raw material are as follows：Rare earth modified 33~44 parts of vermiculite, 24~32 parts of bentonite, 12~18 parts of attapulgite, 3~5 parts of molysite, 6~8 parts of magnesium salts, 5~7 parts of aluminium salt, 13~16 parts of aluminium polychloride, polyaluminum sulfate 12~15 parts of iron, 10~13 parts of activated carbon, 7~9 parts of hydrogen peroxide, 52~70 parts of water.
Further, the parts by weight of each raw material are as follows：Rare earth modified 38 parts of vermiculite, 26 parts of bentonite, concave convex rod 14 parts of soil, 4 parts of molysite, 6 parts of aluminium salt, 15 parts of aluminium polychloride, 14 parts of bodied ferric sulfate, 12 parts of activated carbon, 9 parts of hydrogen peroxide, 55 parts of water.
The domestic sewage treating compound can reach the removal rate of total nitrogen in water body, total phosphorus, ammonia nitrogen, COD, BOD, SS More than 90%.
The preparation method of the rare earth modified vermiculite is：By vermiculite through 300~400 DEG C of 1~2h of sintering, concentration is then added For the rare earth ion aqueous solution of 0.3~0.6M, it is 10~12 to adjust pH using lye, and stirring 30~60min of reaction, centrifuges, filter After slag drying, when 420~550 DEG C of roastings 3~5 are small.
The preparation method of the rare earth modified vermiculite is：By vermiculite through 345 DEG C of sintering 1.5h, then adding concentration is The lanthanum ion aqueous solution of 0.38M, it is 11 to adjust pH using lye, stirring reaction 40min, centrifugation, after filter residue and drying, in 480 DEG C Roast 4.5 it is small when.
The molysite, aluminium salt are respectively ferric chloride hexahydrate and Aluminium chloride hexahydrate.
The lye is 0.1~0.5mol/L sodium hydroxides, one kind in sodium acid carbonate.
In the preparation method of domestic sewage treating compound provided by the invention, each reasonable raw material proportioning, by by bentonite, recessed Convex rod soil high-temperature roasting increases its specific surface area, improves its adsorption effect to molysite and aluminium salt, to molysite and aluminium salt progress After absorption, its pH is adjusted as alkalescence, is then handled through high-temperature roasting, loaded iron, the bentonite of aluminum oxide and recessed Convex rod soil；Then both and rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon have been mixed to get with height Imitate the domestic sewage treating compound for the treatment of effect.
In the preparation method of domestic sewage treating compound disclosed by the invention, rare earth modified vermiculite, activated carbon have stronger Suction-operated can be effectively in adsorbed water body inorganic salts, aluminium polychloride and bodied ferric sulfate have stronger flocculation, can The suspended matter and little particle in sewage are significantly reduced, iron, the bentonite of aluminum oxide and attapulgite has been loaded and has lived During sewage disposal can catalyzing hydrogen peroxide oxidation so as to being decomposed to organic matter, significantly reduce the COD and BOD in water body Value, hydrogen peroxide also has the function of disinfection in addition.
Compared with prior art, the present invention has the following advantages：Domestic sewage treating compound provided by the invention can be short There is higher removal rate to total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body in time, secondary pollution will not be caused, and Have the function of disinfection, it is antibacterial, flocculated.
Embodiment
With reference to embodiment, the present invention is described in detail.
Embodiment 1
The preparation method of the domestic sewage treating compound is：
(1) bentonite and attapulgite are pre-processed into 30min through 350 DEG C of high-temperature roastings；
(2) it is Ferric Chloride Hydrated and Aluminium chloride hexahydrate is soluble in water, add 0.1mol/L sodium hydroxide solutions and adjust water The pH of body is 9；
(3) bentonite and attapulgite obtained step (1) is added in the mixed liquor that step (2) obtains and stirs 30min；Filter, after filter residue and drying through 420 DEG C of high-temperature roasting 4 it is small when, it is spare after natural cooling；
(4) product that step (3) obtains and rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon are mixed Close, after stirring evenly, it is 80~120 mesh to be crushed to particle diameter, you can obtain the domestic sewage treating compound；And in sanitary sewage Hydrogen peroxide is coordinated to use during processing.
The parts by weight of each raw material are as follows：Rare earth modified 38 parts of vermiculite, 26 parts of bentonite, 14 parts of attapulgite, molysite 4 Part, 6 parts of aluminium salt, 15 parts of aluminium polychloride, 14 parts of bodied ferric sulfate, 12 parts of activated carbon, 9 parts of hydrogen peroxide, 55 parts of water.
The preparation method of rare earth modified vermiculite is：By vermiculite through 345 DEG C of sintering 1.5h, it is 0.38M's then to add concentration Lanthanum ion aqueous solution, it is 11 to adjust pH using lye, stirring reaction 40min, centrifugation, and after filter residue and drying, 4.5 are roasted in 480 DEG C Hour.
Sanitary sewage 1L is taken to add the hydrogen peroxide of domestic sewage treating compound 2g that the present embodiment obtains and formula ratio, When stirring reaction 4 is small under 300r/min, the removal of the total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body is tested after standing respectively Rate, the results are shown in Table 1.
Embodiment 2
A kind of preparation method of domestic sewage treating compound is：
(1) bentonite and attapulgite are pre-processed into 35min through 380 DEG C of high-temperature roastings；
(2) Ferric Chloride Hydrated and Aluminium chloride hexahydrate are dissolved in the water of formula ratio, it is molten adds 0.3mol/L sodium acid carbonates The pH that liquid adjusts water body is 10；
(3) bentonite and attapulgite obtained step (1) is added in the mixed liquor that step (2) obtains and stirs 25min；Filter, after filter residue and drying through 440 DEG C of high-temperature roasting 3 it is small when, it is spare after natural cooling；
(4) product that step (3) obtains and rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon are mixed Close, after stirring evenly, it is 80~120 mesh to be crushed to particle diameter, you can obtain the domestic sewage treating compound；And in sanitary sewage The hydrogen peroxide of formula ratio is coordinated to use during processing.
The parts by weight of each raw material are as follows：Rare earth modified 30 parts of vermiculite, 20 parts of bentonite, 10 parts of attapulgite, molysite 2 Part, 5 parts of aluminium salt, 10 parts of aluminium polychloride, 10 parts of bodied ferric sulfate, 8 parts of activated carbon, 5 parts of hydrogen peroxide, 50 parts of water.
The preparation method of rare earth modified vermiculite is：By vermiculite through 345 DEG C of sintering 1.5h, it is 0.38M's then to add concentration Lanthanum ion aqueous solution, it is 11 to adjust pH using lye, stirring reaction 40min, centrifugation, and after filter residue and drying, 4.5 are roasted in 480 DEG C Hour.
Sanitary sewage 1L is taken to add the hydrogen peroxide of domestic sewage treating compound 2g that the present embodiment obtains and formula ratio, When stirring reaction 4 is small under 300r/min, the removal of the total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body is tested after standing respectively Rate, the results are shown in Table 1.
Embodiment 3
A kind of preparation method of domestic sewage treating compound is：
(1) bentonite and attapulgite are pre-processed into 20min through 380 DEG C of high-temperature roastings；
(2) it is Ferric Chloride Hydrated and Aluminium chloride hexahydrate is soluble in water, add 0.5mol/L sodium hydroxide solutions and adjust water The pH of body is 11；
(3) bentonite and attapulgite obtained step (1) is added in the mixed liquor that step (2) obtains and stirs 30min；Filter, after filter residue and drying through 460 DEG C of high-temperature roasting 2 it is small when, it is spare after natural cooling；
(4) product that step (3) obtains and rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon are mixed Close, after stirring evenly, it is 80~120 mesh to be crushed to particle diameter, you can obtain the domestic sewage treating compound；And in sanitary sewage The hydrogen peroxide of formula ratio is coordinated to use during processing.
The parts by weight of each raw material are as follows：Rare earth modified 50 parts of vermiculite, 40 parts of bentonite, 20 parts of attapulgite, molysite 6 Part, 10 parts of aluminium salt, 20 parts of aluminium polychloride, 20 parts of bodied ferric sulfate, 16 parts of activated carbon, 10 parts of hydrogen peroxide, 100 parts of water.
The preparation method of rare earth modified vermiculite is：By vermiculite through 345 DEG C of sintering 1.5h, it is 0.38M's then to add concentration Lanthanum ion aqueous solution, it is 11 to adjust pH using lye, stirring reaction 40min, centrifugation, and after filter residue and drying, 4.5 are roasted in 480 DEG C Hour.
Sanitary sewage 1L is taken to add the hydrogen peroxide of domestic sewage treating compound 2g that the present embodiment obtains and formula ratio, When stirring reaction 4 is small under 300r/min, the removal of the total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body is tested after standing respectively Rate, the results are shown in Table 1.
Comparative example 1
A kind of preparation method of domestic sewage treating compound：By rare earth modified 38 parts of vermiculite, 26 parts of bentonite, attapulgite 14 Part, 4 parts of molysite, 6 parts of aluminium salt, 15 parts of aluminium polychloride, 14 parts of bodied ferric sulfate, 12 parts of activated carbon, 9 parts of hydrogen peroxide, according to Formula ratio is directly mixed.
The preparation method of rare earth modified vermiculite is：By vermiculite through 345 DEG C of sintering 1.5h, it is 0.38M's then to add concentration Lanthanum ion aqueous solution, it is 11 to adjust pH using lye, stirring reaction 40min, centrifugation, and after filter residue and drying, 4.5 are roasted in 480 DEG C Hour.
Sanitary sewage 1L is taken to add the hydrogen peroxide of domestic sewage treating compound 2g that the present embodiment obtains and formula ratio, When stirring reaction 4 is small under 300r/min, the removal of the total nitrogen, total phosphorus, ammonia nitrogen, COD, BOD, SS in water body is tested after standing respectively Rate, the results are shown in Table 1.
Table 1
The above-mentioned detailed description carried out with reference to embodiment to a kind of preparation method of domestic sewage treating compound, is illustrative Rather than it is limited, several embodiments can be included according to limited scope, therefore do not departing from present general inventive concept Under change and modifications, should belong within protection scope of the present invention.

Claims (10)

1. a kind of preparation method of domestic sewage treating compound, it is characterised in that the preparation method comprises the following steps：
(1) bentonite and attapulgite are pre-processed into 20~40min through 350~380 DEG C of high-temperature roastings；
(2) molysite and aluminium salt is soluble in water, the pH for adding lye adjusting water body is 9~11；
(3) bentonite and attapulgite obtained step (1) be added in the mixed liquor that step (2) obtains stirring 20~ 30min；Filter, after filter residue and drying through 420~460 DEG C of high-temperature roasting 2~4 it is small when, it is spare after natural cooling；
(4) product that step (3) obtains is mixed with rare earth modified vermiculite, aluminium polychloride, bodied ferric sulfate, activated carbon, stirred It is 80~120 mesh to be crushed to particle diameter after mixing uniformly, you can obtains the domestic sewage treating compound.
2. preparation method according to claim 1, it is characterised in that the parts by weight of each raw material are as follows：
Rare earth modified 30~50 parts of vermiculite, 20~40 parts of bentonite, 10~20 parts of attapulgite, 2~6 parts of molysite, aluminium salt 5~10 Part, 10~20 parts of aluminium polychloride, 10~20 parts of bodied ferric sulfate, 8~16 parts of activated carbon, 50~100 parts of water.
3. preparation method according to claim 2, it is characterised in that the parts by weight of each raw material are as follows：
Rare earth modified 33~44 parts of vermiculite, 24~32 parts of bentonite, 12~18 parts of attapulgite, 3~5 parts of molysite, magnesium salts 6~8 Part, 5~7 parts of aluminium salt, 13~16 parts of aluminium polychloride, 12~15 parts of bodied ferric sulfate, 10~13 parts of activated carbon, water 52~70 Part.
4. preparation method according to claim 2, it is characterised in that the parts by weight of each raw material are as follows：
Rare earth modified 38 parts of vermiculite, 26 parts of bentonite, 14 parts of attapulgite, 4 parts of molysite, 6 parts of aluminium salt, 15 parts of aluminium polychloride, 14 parts of bodied ferric sulfate, 12 parts of activated carbon, 55 parts of water.
5. preparation method according to claim 1, it is characterised in that the domestic sewage treating compound to total nitrogen in water body, Total phosphorus, ammonia nitrogen, the removal rate of COD, BOD, SS can reach more than 90%.
6. preparation method according to claim 1, it is characterised in that the preparation method of the rare earth modified vermiculite is：Will Then vermiculite adds the rare earth ion aqueous solution that concentration is 0.3~0.6M, uses lye tune through 300~400 DEG C of 1~2h of sintering It is 10~12 to save pH, stirring 30~60min of reaction, centrifugation, after filter residue and drying, when 420~550 DEG C of roastings 3~5 are small.
7. preparation method according to claim 1, it is characterised in that the preparation method of the rare earth modified vermiculite is：Will Then vermiculite adds the lanthanum ion aqueous solution that concentration is 0.38M, it is 11 to adjust pH using lye, stirring through 345 DEG C of sintering 1.5h 40min is reacted, is centrifuged, after filter residue and drying, when 480 DEG C of roastings 4.5 are small.
8. preparation method according to claim 1, it is characterised in that the molysite, aluminium salt are respectively ferric chloride hexahydrate And Aluminium chloride hexahydrate.
9. preparation method according to claim 1, it is characterised in that when being additionally included in progress sanitary sewage disposal, add 5~10 parts of hydrogen peroxide is added while domestic sewage treating compound.
10. preparation method according to claim 1, it is characterised in that the lye is 0.1~0.5mol/L hydroxides One kind in sodium, sodium acid carbonate.
CN201711419435.XA 2017-12-25 2017-12-25 A kind of preparation method of domestic sewage treating compound Pending CN108002472A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
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CN108996637A (en) * 2018-08-07 2018-12-14 阜阳大可新材料股份有限公司 A kind of processing method of density fiber board production waste water
CN109354084A (en) * 2018-11-22 2019-02-19 明光市国星凹土有限公司 A kind of efficient water-purifying agent
CN112794337A (en) * 2021-02-02 2021-05-14 南京公诚节能新材料研究院有限公司 Attapulgite surface modification method
CN113318711A (en) * 2021-06-22 2021-08-31 招商局生态环保科技有限公司 Preparation method of coupled phosphorus removal microspheres and product thereof
CN113716635A (en) * 2021-10-15 2021-11-30 辽宁同筑环保设施运营有限公司 Phosphorus removing agent for industrial sewage treatment and use method thereof
CN114105313A (en) * 2021-12-09 2022-03-01 苏州中晟环境修复有限公司 Method for treating eutrophic water body by combining immobilized microorganism technology and biochar
CN116253410A (en) * 2023-02-28 2023-06-13 内蒙古农业大学 Treating agent for reducing COD and ammonia nitrogen concentration in monosodium glutamate wastewater and preparation method and application thereof
CN117797775A (en) * 2024-02-28 2024-04-02 中蓝长化工程科技有限公司 High-salt wastewater COD removal agent and preparation method and application thereof

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CN108996637A (en) * 2018-08-07 2018-12-14 阜阳大可新材料股份有限公司 A kind of processing method of density fiber board production waste water
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CN112794337A (en) * 2021-02-02 2021-05-14 南京公诚节能新材料研究院有限公司 Attapulgite surface modification method
CN113318711A (en) * 2021-06-22 2021-08-31 招商局生态环保科技有限公司 Preparation method of coupled phosphorus removal microspheres and product thereof
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CN114105313A (en) * 2021-12-09 2022-03-01 苏州中晟环境修复有限公司 Method for treating eutrophic water body by combining immobilized microorganism technology and biochar
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