CN104891778A - Flocculant and method for dewatering sludge - Google Patents
Flocculant and method for dewatering sludge Download PDFInfo
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- CN104891778A CN104891778A CN201510345248.6A CN201510345248A CN104891778A CN 104891778 A CN104891778 A CN 104891778A CN 201510345248 A CN201510345248 A CN 201510345248A CN 104891778 A CN104891778 A CN 104891778A
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Abstract
The invention relates to the field of sewage treatment, in particular to a flocculant and a method for dewatering sludge. The flocculant for dewatering the sludge comprises an agent A and an agent B. The agent A comprises ferrous sulfate, heavy metal chelating agents, semi-coke, lime powder, alkylamine phosphate polyoxyethylene and lignosulfonate; the agent B comprises betaine, tetraethylenepentamine, formaldehyde, ethanol and water. The flocculant and the method for dewatering the sludge have the advantages that the agent A and the agent B act jointly, accordingly, the flocculation performance of the sludge can be enhanced, heavy metal and organic matters can be comprehensively treated, dewatering effects can be improved, and toxic and harmful substances in the sludge can be reduced.
Description
Technical field
The present invention relates to sewage treatment area, be specifically related to Sludge Dewatering Flocculant and dewatering thereof.
Background technology
The mud generation of Sewage Plant is very large, and containing a large amount of microorganisms, pathogenic agent, heavy metal and organic pollutant, reasonably process, disposing sludge are a very important job, main by concentrating mud, dewatering at present, reach the preliminary requirement of minimizing, then carry out landfill or burning disposal.
In minimizing process, dehydration generally adopts mechanical dehydration, and adds dehydration flocculant, improve the effect of dehydration, at present the main dehydration flocculant used is based on inorganic substance, such as unslaked lime etc., dehydrating effect and the aspect such as removal heavy metal, organism effect unsatisfactory.
Summary of the invention
For above-mentioned technical problem, the invention provides one and both can improve dehydration, the Sludge Dewatering Flocculant of all right material such as removal heavy metal, organism, concrete technical scheme is:
Sludge Dewatering Flocculant, is made up of A agent and B agent; Described A agent is made up of following raw material erection weight number: ferrous sulfate 20-28 part, heavy metal chelating agent 6-12 part, blue charcoal 40-45 part, lime powder 12-17 part, ethoxylated fatty amines phosphoric acid ester 8-14 part, sulfonated lignin 4-9 part;
Described B agent following raw material erection weight number is made: trimethyl-glycine 34-40 part, tetren 15-23 part, formaldehyde 7-10 part, ethanol 9-15 part, water 45-60 part.Wherein, an inventive point of the present invention is: ethanol can be replaced with ethanol and ethylene glycol according to weight ratio 1: (0.5-2) allocates, and the product after allotment has higher stability and quality product.
Described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
Described B agent preparation method comprises, and tetren, ethanol add stirring in a kettle. until tetren dissolves, and is heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
Utilize the dewatering of this Sludge Dewatering Flocculant, comprise the following steps:
(1) add A agent, add-on is A agent 1 ~ 4 part, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 2 ~ 7 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
Inventive point of the present invention is just the flocculation agent different flocculation agent being prepared in the manner of the present invention mixing, and the effect of the finished product is 3-5 times of single component or simple mixed flocculation agent effect, is the method that the present inventor obtains through long-term experiment.
Sludge Dewatering Flocculant provided by the invention, utilizes A agent and B agent acting in conjunction, enhances the flocculating property of mud, and heavy metal and organism can carry out comprehensive treating process, not only improve dehydrating effect, reduces hazardous and noxious substances in mud.
Embodiment
In conjunction with the embodiments, the specific embodiment of the present invention is described.
Embodiment 1
Sludge Dewatering Flocculant, is made up of A agent and B agent; Described A agent is made up of following raw material erection weight number: 28 parts, ferrous sulfate, heavy metal chelating agent 10 parts, blue charcoal 43 parts, lime powder 12 parts, ethoxylated fatty amines phosphoric acid ester 12 parts, sulfonated lignin 9 parts;
Described B agent following raw material erection weight number is made: trimethyl-glycine 35 parts, tetren 20 parts, 9 parts, formaldehyde, ethanol 9 parts, 55 parts, water.
Described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
Described B agent preparation method comprises, and tetren, ethanol add stirring in a kettle. until tetren dissolves, and is heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
Utilize the dewatering of this Sludge Dewatering Flocculant, comprise the following steps:
(1) add A agent, add-on is A agent 3 parts, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 2 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
Embodiment 2
Sludge Dewatering Flocculant, is made up of A agent and B agent; Described A agent is made up of following raw material erection weight number: 20 parts, ferrous sulfate, heavy metal chelating agent 6 parts, blue charcoal 42 parts, lime powder 15 parts, ethoxylated fatty amines phosphoric acid ester 14 parts, sulfonated lignin 6 parts;
Described B agent following raw material erection weight number is made: trimethyl-glycine 37 parts, tetren 15 parts, 8 parts, formaldehyde, ethanol 15 parts, 45 parts, water.
Described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
Described B agent preparation method comprises, and tetren, ethanol add stirring in a kettle. until tetren dissolves, and is heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
Utilize the dewatering of this Sludge Dewatering Flocculant, comprise the following steps:
(1) add A agent, add-on is A agent 1 part, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 6 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
Embodiment 3
Sludge Dewatering Flocculant, is made up of A agent and B agent; Described A agent is made up of following raw material erection weight number: 25 parts, ferrous sulfate, heavy metal chelating agent 8 parts, blue charcoal 45 parts, lime powder 17 parts, ethoxylated fatty amines phosphoric acid ester 10 parts, sulfonated lignin 4 parts;
Described B agent following raw material erection weight number is made: trimethyl-glycine 40 parts, tetren 23 parts, 10 parts, formaldehyde, ethanol 10 parts, 50 parts, water.
Described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
Described B agent preparation method comprises, and tetren, ethanol add stirring in a kettle. until tetren dissolves, and is heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
Utilize the dewatering of this Sludge Dewatering Flocculant, comprise the following steps:
(1) add A agent, add-on is A agent 4 parts, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 7 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
Embodiment 4
Sludge Dewatering Flocculant, is made up of A agent and B agent; Described A agent is made up of following raw material erection weight number: 26 parts, ferrous sulfate, heavy metal chelating agent 12 parts, blue charcoal 40 parts, lime powder 14 parts, ethoxylated fatty amines phosphoric acid ester 8 parts, sulfonated lignin 5 parts;
Described B agent following raw material erection weight number is made: trimethyl-glycine 34 parts, tetren 18 parts, 7 parts, formaldehyde, ethanol 12 parts, 45 parts, water.
Described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
Described B agent preparation method comprises, and tetren, ethanol add stirring in a kettle. until tetren dissolves, and is heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
Utilize the dewatering of this Sludge Dewatering Flocculant, comprise the following steps:
(1) add A agent, add-on is A agent 2 parts, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 5 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
The mud of each embodiment process is the mud that city sewage plant produces above, and treatment capacity is 1000 tons, and the result of process detects as following table 1, as can be seen from the results, in minimizing, has effect clearly.
The each embodiment sludge dewatering of table 1 detects table
Claims (4)
1. Sludge Dewatering Flocculant, comprises by A agent and B agent; It is characterized in that, described A agent is made up of following raw material erection weight number: ferrous sulfate 20-28 part, heavy metal chelating agent 6-12 part, blue charcoal 40-45 part, lime powder 12-17 part, ethoxylated fatty amines phosphoric acid ester 8-14 part, sulfonated lignin 4-9 part;
Described B agent following raw material erection weight number is made: trimethyl-glycine 34-40 part, tetren 15-23 part, formaldehyde 7-10 part, ethanol 9-15 part, water 45-60 part.
2. Sludge Dewatering Flocculant according to claim 1, it is characterized in that: described A agent preparation method comprises, ground 500 mesh sieves of ferrous sulfate, blue charcoal, lime powder, then with heavy metal chelating agent, ethoxylated fatty amines phosphoric acid ester, sulfonated lignin mixing and stirring.
3. Sludge Dewatering Flocculant according to claim 1, it is characterized in that: described B agent preparation method comprises, tetren, ethanol add stirring in a kettle. until tetren dissolves, be heated to 45-50 DEG C, stir with the speed of 100-120 rev/min, add formaldehyde, reaction 1-2 hour, be cooled to room temperature, add trimethyl-glycine and water, stir.
4. the dewatering of the Sludge Dewatering Flocculant according to Claim 1-3, is characterized in that, comprises the following steps:
(1) add A agent, add-on is A agent 1 ~ 4 part, 100 parts, mud, stirs 10-15 minute;
(2) conditioning of mud pH to 6-8; Add B agent, add-on is B agent 2 ~ 7 parts, 100 parts, mud, stirs 10-30 minute;
(3) mechanism filter-pressing dehydration is carried out.
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| CN201510345248.6A CN104891778B (en) | 2015-06-23 | 2015-06-23 | Sludge Dewatering Flocculant and its dewatering |
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| CN201510345248.6A CN104891778B (en) | 2015-06-23 | 2015-06-23 | Sludge Dewatering Flocculant and its dewatering |
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| CN104891778B CN104891778B (en) | 2017-06-23 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776485A (en) * | 2016-05-18 | 2016-07-20 | 宗永臣 | Flocculating agent for sewage treatment and preparation method thereof |
| CN106746475A (en) * | 2016-12-07 | 2017-05-31 | 杨立亮 | Composite high-molecular Sludge Dewatering Flocculant and preparation method thereof |
| CN114273088A (en) * | 2021-12-31 | 2022-04-05 | 永兴特种材料科技股份有限公司 | Mud-control flotation mineral separation process |
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| US5102556A (en) * | 1990-03-30 | 1992-04-07 | Union Oil Company Of California | Method for rendering ferric hydroxide sludges recyclable |
| JP2005334730A (en) * | 2004-05-25 | 2005-12-08 | Katayama Chem Works Co Ltd | Composition for sludge solidification and sludge solidification method |
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| CN102249514A (en) * | 2010-05-17 | 2011-11-23 | 唐菊香 | Low-energy drying treatment method for discharged sludge |
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2015
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| US5102556A (en) * | 1990-03-30 | 1992-04-07 | Union Oil Company Of California | Method for rendering ferric hydroxide sludges recyclable |
| JP2005334730A (en) * | 2004-05-25 | 2005-12-08 | Katayama Chem Works Co Ltd | Composition for sludge solidification and sludge solidification method |
| CN102249514A (en) * | 2010-05-17 | 2011-11-23 | 唐菊香 | Low-energy drying treatment method for discharged sludge |
| CN101955345A (en) * | 2010-09-29 | 2011-01-26 | 江苏艾特克环境工程设计研究院有限公司 | Neutral inorganic composite material for dehydration, solidification and modification of high water content sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105776485A (en) * | 2016-05-18 | 2016-07-20 | 宗永臣 | Flocculating agent for sewage treatment and preparation method thereof |
| CN106746475A (en) * | 2016-12-07 | 2017-05-31 | 杨立亮 | Composite high-molecular Sludge Dewatering Flocculant and preparation method thereof |
| CN114273088A (en) * | 2021-12-31 | 2022-04-05 | 永兴特种材料科技股份有限公司 | Mud-control flotation mineral separation process |
| CN114273088B (en) * | 2021-12-31 | 2023-09-29 | 永兴特种材料科技股份有限公司 | Mud-control flotation beneficiation process |
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