CN105776485A - Flocculating agent for sewage treatment and preparation method thereof - Google Patents
Flocculating agent for sewage treatment and preparation method thereof Download PDFInfo
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- CN105776485A CN105776485A CN201610328307.3A CN201610328307A CN105776485A CN 105776485 A CN105776485 A CN 105776485A CN 201610328307 A CN201610328307 A CN 201610328307A CN 105776485 A CN105776485 A CN 105776485A
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- flocculating agent
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- polyacrylamide
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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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/52—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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a flocculating agent for sewage treatment. The flocculating agent comprises the following substances in parts by weight: 20-40 parts of sodium carboxymethylcellulose, 20-40 parts of polyacrylamide, 10-30 parts of aluminium sulfate ocatadecahydrate, 15-30 parts of powder of leaf of stem of noble dendrobium, 40-60 parts of 2,3-epoxypropyltrimethylammonium chloride, 20-40 parts of nano silica, 20-40 parts of gelatinized corn starch, 20-40 parts of alkylamine polyoxyethylene ether phosphate, 20-40 parts of sodium acetate, 20-40 parts of flyash and 50-100 parts of deionized water. The flocculating agent for sewage treatment has the beneficial effects that the reaction speed is high and toxic and harmful gases are not generated in the process; the product after reaction is stable and can not be decomposed into toxic substances; the flocculating agent is efficient and nontoxic, is safe to human bodies before and after reaction, does not corrode objects and has high sewage treatment efficiency.
Description
Technical field
The present invention relates to a kind of sewage treatment flocculating agent and preparation method thereof, belong to technical field of sewage.
Background technology
Currently, environmental conservation has become the problem of World Focusing, and the emission request of trade effluent is strict, and country takes
Corresponding compulsory measure, seeks a kind of effective sewage treatment flocculating agent, it is possible to can reach sewage discharge requirement after making sewage disposal, be numerous enterprises urgent need to solve the problem.Water saving, the problem such as energy-conservation are had a very important role by sewage disposal technology, but also affect to environment during the use of sewage treatment drug simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of sewage treatment flocculating agent and preparation method thereof, this sewage treatment flocculating agent is efficient, nontoxic, corrosion-free to object, and the preparation method of this sewage treatment flocculating agent is simple.
To achieve these goals, technical scheme is as follows.
A kind of sewage treatment flocculating agent, it is made up of the material of following mass fraction: sodium carboxymethyl cellulose 20～40 parts, polyacrylamide 20～40 parts, aluminum sulfate octadecahydrate 10～30 parts, Herba Dendrobii leaf powder 15～30 parts, 2,3-epoxypropyltrimethylchloride chloride 40～60 parts, nano silicon 20～40 parts, gelatinizing corn starch 20～40 parts, ethoxylated fatty amines phosphate ester 20～40 parts, sodium acetate 20～40 parts, flyash 20～40 parts, deionized water 500～1000 parts.
Further, described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 20 parts, polyacrylamide 20 parts, aluminum sulfate octadecahydrate 10 parts, 15 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 40 parts, nano silicon 20 parts, gelatinizing corn starch 20 parts, ethoxylated fatty amines phosphate ester 20 parts, sodium acetate 20 parts, 20 parts of flyash, deionized water 500 parts.
Further, described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 30 parts, polyacrylamide 30 parts, aluminum sulfate octadecahydrate 20 parts, 18 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 50 parts, nano silicon 30 parts, gelatinizing corn starch 30 parts, ethoxylated fatty amines phosphate ester 30 parts, sodium acetate 30 parts, 30 parts of flyash, deionized water 800 parts.
Further, described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 40 parts, polyacrylamide 40 parts, aluminum sulfate octadecahydrate 30 parts, 30 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 60 parts, nano silicon 40 parts, gelatinizing corn starch 40 parts, ethoxylated fatty amines phosphate ester 40 parts, sodium acetate 40 parts, 40 parts of flyash, deionized water 1000 parts.
The preparation method of sewage treatment flocculating agent of the present invention, employing following steps:
(1) measuring raw material according to above-mentioned mass fraction, cleaning treatment material is mixed with blender, adds secondary deionized water；
(2) polyacrylamide is slowly added to material be mixed with in blender, record mixing time, from open material be mixed with blender to polyacrylamide feed intake end required time be 5～10 minutes；
(3) it is slowly added to sodium carboxymethyl cellulose stir in material is mixed with blender；
(4) slowly putting into raw material aluminum sulfate octadecahydrate under normal pressure, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes；
(5) slowly put under normal pressure Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride and unclassified stores, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes, and pH controls between 8～9, stopping material and be mixed with blender, the examination and test of products is packed.
This beneficial effect of the invention is: the sewage treatment flocculating agent in this invention, and response speed is fast, during without toxic and harmful generation；Reacted product is stable, will not be further decomposed into noxious substance；Efficiently, nontoxic, safe to the human body before and after reaction, corrosion-free to object；High for sewage treating efficiency.
Detailed description of the invention
Below in conjunction with embodiment, the detailed description of the invention of the present invention is described, in order to be better understood from the present invention.
Embodiment
1
Sewage treatment flocculating agent in the present embodiment, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 20 parts, polyacrylamide 20 parts, aluminum sulfate octadecahydrate 10 parts, 15 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 40 parts, nano silicon 20 parts, gelatinizing corn starch 20 parts, ethoxylated fatty amines phosphate ester 20 parts, sodium acetate 20 parts, 20 parts of flyash, deionized water 500 parts.
The preparation method of a kind of sewage treatment flocculating agent of the present invention, described preparation method employing following steps:
(1) measuring raw material according to above-mentioned mass fraction, cleaning treatment material is mixed with blender, adds secondary deionized water；
(2) polyacrylamide is slowly added to material be mixed with in blender, record mixing time, from open material be mixed with blender to polyacrylamide feed intake end required time be 5 minutes；
(3) it is slowly added to sodium carboxymethyl cellulose stir in material is mixed with blender；
(4) slowly putting into raw material aluminum sulfate octadecahydrate under normal pressure, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes；
(5) slowly put under normal pressure Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride and unclassified stores, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes, and pH controls about 8, stopping material and be mixed with blender, the examination and test of products is packed.
Utilize the sewage treatment flocculating agent in the present embodiment, be respectively directed to waste water before treatment and and clear water detection COD, BOD and SS (float in water quality) of solid-liquid separation after processing, and detect total nitrogen, total phosphorus and ammonia-nitrogen content, result is as follows:
COD and BOD is dropped to 1250mg/L and 480mg/L by initial 13500mg/L and 5990mg/L respectively；SS is dropped to 368mg/L by initial 3796mg/L；Total nitrogen content is dropped to 28mg/L by 77.8mg/L, and total phosphorus content is dropped to 4.4mg/L by 13.9mg/L, and ammonia-nitrogen content is dropped to 6.5mg/L by 18.9mg/L.
Apparent effect measuring: before processing, chroma in waste water is 2280 times, the clear water colourity after process is less than 50 times；Compared to waste water before processing, the foul odour of the clear water after process substantially alleviates；Before processing, chroma in waste water is 120 times, and the clear water colourity after process drops to 22 times；Before processing, turbidity of wastewater is 298NTU, the clear water turbidity reduction after process to 24NTU.
Embodiment
2
Sewage treatment flocculating agent in the present embodiment, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 30 parts, polyacrylamide 30 parts, aluminum sulfate octadecahydrate 20 parts, 18 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 50 parts, nano silicon 30 parts, gelatinizing corn starch 30 parts, ethoxylated fatty amines phosphate ester 30 parts, sodium acetate 30 parts, 30 parts of flyash, deionized water 800 parts.
The preparation method of sewage treatment flocculating agent of the present invention, described preparation method employing following steps:
(1) measuring raw material according to above-mentioned mass fraction, cleaning treatment material is mixed with blender, adds secondary deionized water；
(2) polyacrylamide is slowly added to material be mixed with in blender, record mixing time, from open material be mixed with blender to polyacrylamide feed intake end required time be 8 minutes；
(3) it is slowly added to sodium carboxymethyl cellulose stir in material is mixed with blender；
(4) slowly putting into raw material aluminum sulfate octadecahydrate under normal pressure, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes；
(5) slowly put under normal pressure Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride and unclassified stores, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes, and pH controls about 9, stopping material and be mixed with blender, the examination and test of products is packed.
Being respectively directed to clear water detection COD, BOD and SS (float in water quality) of waste water before treatment and solid-liquid separation, and detect total nitrogen, total phosphorus and ammonia-nitrogen content, result is as follows:
COD and BOD is dropped to 1350mg/L and 280mg/L by initial 11500mg/L and 5690mg/L respectively；SS is dropped to 355mg/L by initial 3636mg/L；Total nitrogen content 88.9mg/L drops to 23mg/L, and total phosphorus content is dropped to 1.9mg/L by 12.9mg/L, and ammonia-nitrogen content is dropped to 8.6mg/L by 17.8mg/L.
Apparent effect measuring: before processing, chroma in waste water is 2200 times, the clear water colourity after process is less than 45 times；Compared to waste water before processing, the foul odour of the clear water after process substantially alleviates；Before processing, chroma in waste water is 125 times, and the clear water colourity after process drops to 26 times；Before processing, turbidity of wastewater is 278NTU, the clear water turbidity reduction after process to 31NTU.
Embodiment
3
Sewage treatment flocculating agent in the present embodiment, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 40 parts, polyacrylamide 40 parts, aluminum sulfate octadecahydrate 30 parts, 30 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 60 parts, nano silicon 40 parts, gelatinizing corn starch 40 parts, ethoxylated fatty amines phosphate ester 40 parts, sodium acetate 40 parts, 40 parts of flyash, deionized water 1000 parts.
The preparation method of a kind of sewage treatment flocculating agent of the present invention, described preparation method employing following steps:
(1) measuring raw material according to above-mentioned mass fraction, cleaning treatment material is mixed with blender, adds secondary deionized water；
(2) polyacrylamide is slowly added to material be mixed with in blender, record mixing time, from open material be mixed with blender to polyacrylamide feed intake end required time be 10 minutes；
(3) it is slowly added to sodium carboxymethyl cellulose stir in material is mixed with blender；
(4) slowly putting into raw material aluminum sulfate octadecahydrate under normal pressure, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes；
(5) slowly put under normal pressure Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride and unclassified stores, temperature is less than 60 DEG C, until charging terminates, whole process completed in 40 minutes, and pH controls about 8.5, stopping material and be mixed with blender, the examination and test of products is packed.
Being respectively directed to clear water detection COD, BOD and SS (float in water quality) of waste water before treatment and solid-liquid separation, and detect total nitrogen, total phosphorus and ammonia-nitrogen content, result is as follows:
COD and BOD is dropped to 1120mg/L and 380mg/L by initial 14500mg/L and 4990mg/L respectively；SS is dropped to 330mg/L by initial 3989mg/L；Total nitrogen content is dropped to 26mg/L by 78.9mg/L, and total phosphorus content is dropped to 4.6mg/L by 18.9mg/L, and ammonia-nitrogen content is dropped to 7.1mg/L by 21.9mg/L.
Apparent effect measuring: before processing, chroma in waste water is 2450 times, the clear water colourity after process is less than 36 times；Compared to waste water before processing, the foul odour of the clear water after process substantially alleviates；Before processing, chroma in waste water is 155 times, and the clear water colourity after process drops to 24 times；Before processing, turbidity of wastewater is 489NTU, the clear water turbidity reduction after process to 51NTU.
The above is the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (5)
1. a sewage treatment flocculating agent, it is characterized in that: be made up of the material of following mass fraction: sodium carboxymethyl cellulose 20～40 parts, polyacrylamide 20～40 parts, aluminum sulfate octadecahydrate 10～30 parts, Herba Dendrobii leaf powder 15～30 parts, 2,3-epoxypropyltrimethylchloride chloride 40～60 parts, nano silicon 20～40 parts, gelatinizing corn starch 20～40 parts, ethoxylated fatty amines phosphate ester 20～40 parts, sodium acetate 20～40 parts, flyash 20～40 parts, deionized water 500～1000 parts.
Sewage treatment flocculating agent the most according to claim 1, it is characterized in that: described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 20 parts, polyacrylamide 20 parts, aluminum sulfate octadecahydrate 10 parts, 15 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 40 parts, nano silicon 20 parts, gelatinizing corn starch 20 parts, ethoxylated fatty amines phosphate ester 20 parts, sodium acetate 20 parts, 20 parts of flyash, deionized water 500 parts.
Sewage treatment flocculating agent the most according to claim 1, it is characterized in that: described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 30 parts, polyacrylamide 30 parts, aluminum sulfate octadecahydrate 20 parts, 18 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 50 parts, nano silicon 30 parts, gelatinizing corn starch 30 parts, ethoxylated fatty amines phosphate ester 30 parts, sodium acetate 30 parts, 30 parts of flyash, deionized water 800 parts.
Sewage treatment flocculating agent the most according to claim 1, it is characterized in that: described sewage treatment flocculating agent, be made up of the material of following mass fraction: sodium carboxymethyl cellulose 40 parts, polyacrylamide 40 parts, aluminum sulfate octadecahydrate 30 parts, 30 parts of Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride 60 parts, nano silicon 40 parts, gelatinizing corn starch 40 parts, ethoxylated fatty amines phosphate ester 40 parts, sodium acetate 40 parts, 40 parts of flyash, deionized water 1000 parts.
Sewage treatment flocculating agent the most according to claim 1, it is characterised in that: its preparation method employing following steps:
(1) measuring raw material according to above-mentioned mass fraction, cleaning treatment material is mixed with blender, adds secondary deionized water；
(2) polyacrylamide is slowly added to material be mixed with in blender, record mixing time, from open material be mixed with blender feed intake to polyacrylamide end required time can be about 5～10 minutes；
(3) it is slowly added to sodium carboxymethyl cellulose stir in material is mixed with blender；
(4) slowly putting into raw material aluminum sulfate octadecahydrate under normal pressure, temperature can be less than about 60 DEG C, until charging terminates, whole process completed in 40 minutes；
(5) slowly put under normal pressure Herba Dendrobii leaf powder, 2,3-epoxypropyltrimethylchloride chloride and unclassified stores, temperature is less than about 60 DEG C, until charging terminates, whole process can complete in about 40 minutes, and pH controls between 8～9, stopping material and be mixed with blender, the examination and test of products is packed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610328307.3A CN105776485A (en) | 2016-05-18 | 2016-05-18 | Flocculating agent for sewage treatment and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610328307.3A CN105776485A (en) | 2016-05-18 | 2016-05-18 | Flocculating agent for sewage treatment and preparation method thereof |
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| CN105776485A true CN105776485A (en) | 2016-07-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055727A (en) * | 2017-04-20 | 2017-08-18 | 合肥浦尔菲电线科技有限公司 | A kind of machining high polymer coagulant |
| CN107739079A (en) * | 2017-11-25 | 2018-02-27 | 长沙秋点兵信息科技有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN112047422A (en) * | 2020-09-16 | 2020-12-08 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999351A (en) * | 2006-12-29 | 2007-07-18 | 大连海事大学 | Compound flocculating agent used for treating red tide organisms and its preparation method |
| CN101041707A (en) * | 2007-03-02 | 2007-09-26 | 王旭东 | Positive ion organic high polymer coagulant and preparation method thereof |
| CN103508536A (en) * | 2013-10-15 | 2014-01-15 | 江苏商达水务有限公司 | Sewage treatment flocculating agent in livestock farm |
| CN104787821A (en) * | 2015-05-04 | 2015-07-22 | 刘瑞 | Industrial sewage treatment agent |
| CN104891778A (en) * | 2015-06-23 | 2015-09-09 | 杜普利 | Flocculant and method for dewatering sludge |
-
2016
- 2016-05-18 CN CN201610328307.3A patent/CN105776485A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999351A (en) * | 2006-12-29 | 2007-07-18 | 大连海事大学 | Compound flocculating agent used for treating red tide organisms and its preparation method |
| CN101041707A (en) * | 2007-03-02 | 2007-09-26 | 王旭东 | Positive ion organic high polymer coagulant and preparation method thereof |
| CN103508536A (en) * | 2013-10-15 | 2014-01-15 | 江苏商达水务有限公司 | Sewage treatment flocculating agent in livestock farm |
| CN104787821A (en) * | 2015-05-04 | 2015-07-22 | 刘瑞 | Industrial sewage treatment agent |
| CN104891778A (en) * | 2015-06-23 | 2015-09-09 | 杜普利 | Flocculant and method for dewatering sludge |
Non-Patent Citations (2)
| Title |
|---|
| 胡岳华主编: "《矿物浮选》", 31 March 2014 * |
| 黄祖佑等: "《农副化工新产品与新技术》", 30 June 1998 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055727A (en) * | 2017-04-20 | 2017-08-18 | 合肥浦尔菲电线科技有限公司 | A kind of machining high polymer coagulant |
| CN107739079A (en) * | 2017-11-25 | 2018-02-27 | 长沙秋点兵信息科技有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN112047422A (en) * | 2020-09-16 | 2020-12-08 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
| CN112047422B (en) * | 2020-09-16 | 2022-04-12 | 国投信开水环境投资有限公司 | Production process of composite phosphorus removal agent for sewage treatment |
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