CN107698130A - A kind of environmentally friendly efficient reactivity sludge dehydrating agent - Google Patents
A kind of environmentally friendly efficient reactivity sludge dehydrating agent Download PDFInfo
- Publication number
- CN107698130A CN107698130A CN201710957343.0A CN201710957343A CN107698130A CN 107698130 A CN107698130 A CN 107698130A CN 201710957343 A CN201710957343 A CN 201710957343A CN 107698130 A CN107698130 A CN 107698130A
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- CN
- China
- Prior art keywords
- sludge
- dehydrating agent
- environmentally friendly
- friendly efficient
- sludge dehydrating
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General 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)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to sludge treatment field, more particularly to a kind of environmentally friendly efficient reactivity sludge dehydrating agent for deeply dehydrating sludge, the mass percent of each component is in formula：Calcium silicates 25~30%, dimethyl diallyl ammonium chloride and acrylamide copolymer 8~12%, polyvinylpyrrolidone 2~4%, calcium sulfate 13~17%, zeolite powder 22~28%, tetrahydroxy close sodium aluminate 15~20%, said components are mixed in proportion, obtain this sludge dehydrating agent.The environmentally friendly efficient reactivity sludge dehydrating agent of the present invention can carry out deep dehydration processing to sludge, and addition is few, and general addition is the 5~15% of sludge dry matter weight；Moisture content of the cake as little as 50%, sludge reduction effect protrude；Stench is eliminated, nontoxic pollution-free, secondary argillization will not be produced, realizes the minimizing, innoxious and stabilized while be advantageous to its recycling of Treatment of Sludge.
Description
Technical field
It is more particularly to a kind of for the environmentally friendly efficiently anti-of deeply dehydrating sludge the present invention relates to sludge treatment field
Answering property sludge dehydrating agent.
Background technology
Water is the primary condition of human survival, is the indispensable resource of industrial and agricultural production.On the one hand, distribution of water resources is not
Equilibrium, some areas critical shortage；On the other hand, this rare water resource of human lives' production constantly pollution.Water resource is short
It is two hang-ups currently faced to lack with water pollution.People gradually recognize that only sewage disposal and reusing sewage are only solution water
One of most effectual way of shortage of resources and water pollution.
Sewage disposal is exactly to come out the separated from contaminants in sewage, forms sludge.As sewage treatment plant is continuous daily
Operation and the continuous improvement for the treatment of capacity, the sludge yield of sewage plant increase substantially, and by the end of the end of the year 2010, national cities and towns are dirty
Water process amount has 343 billion cubic meters, and caused dewatered sludge (moisture content 80% or so) is then close to 22,000,000 tons.At sewage
The product of reason, sludge is both containing nitrogen, phosphorus, potassium, while include heavy metal, parasitic ovum, germ again, if mishandling, pole
Easily cause secondary pollution.
The sludge of sewage treatment plant's processing at present can only accomplish concentration and mechanical dehydration, realize mud decrement, be both not carried out
Sewage sludge harmlessness, stabilized requirement, can not meet the needs of recycling, it is also necessary to which sludge is further located
Reason.Have much to specific resistance to filtration method at present, but no matter be to carry out its elsewhere with which kind of mode, reduction moisture percentage in sewage sludge
Put the prerequisite condition of mode.
Currently conventional sludge dewatering agent mainly include the flocculants such as poly- propionamide, aluminium polychloride, ferric trichloride and
The inorganic conditioners such as lime, magnesia.Its principle is exactly between sludge internal build skeleton holding fluid passage, reduction solid-liquid
Interfacial tension, be released in sludge flco grid contained moisture, so as to be advantageous to the abjection of the moisture depth in sludge.
Meanwhile by changing and destroying the organic constitution of water-borne glue body particle surface in alkaline environment, make flocculant or coagulant
More direct and colloidal solid and the effect of the dissolved organic matter of structural change, so as to reach enhanced coagulation, accelerate filtering
Effect.
These Assistants only realize the decrement of sludge, but dewatering efficiency is not high, moisture content of the cake 60~80% it
Between, and secondary pollution can occur without the property for changing sludge, sludge, dehydrated sludge can produce stench during storage, by force
Degree can not meet the requirement of backfill.The addition of some medicaments can influence the recycling in later stage.
The content of the invention
The invention aims to overcome prior art deficiency and shortcoming, there is provided a kind of ring for deeply dehydrating sludge
Border friendly efficient reactivity dehydrating agent.
In order to realize the above object the present invention uses following technical scheme：
A kind of environmentally friendly efficient reactivity sludge dehydrating agent, include the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
As preferable, the dehydrating agent includes the component of following mass percent：
A kind of preparation method of environmentally friendly efficient reactivity sludge dehydrating agent, said components are mixed in proportion
It is even, obtain environmentally friendly reactive sludge dehydrating agent.
The reactivity conditioning principle of the present invention：
Water in sludge mainly exists in the form of Free water, constitution water and internal water, and moisture is combined with mud granule
The descending order of degree is：Internal water>Constitution water>Free water, combination degree is higher, is more difficult to remove.Deeply dehydrating sludge
Free water is not only removed, also to remove absorption water and internal water as far as possible.
Inorganic component in sludge contains with positron-electron, the protein in organic component, polysaccharide, fat and humic acid
Polarized group is distributed in sludge with positron-electron, these electronics with disorderly arranged, and they are with water with hydrogen bond and chemistry
The form of key combines to form stable colloform texture.This partial moisture is removed, the electronic configuration in sludge will be changed first
Unordered arrangement is converted into orderly arrangement, constitution water is converted into Free water.
Claims (8)
1. a kind of environmentally friendly efficient reactivity sludge dehydrating agent, it is characterised in that include the component of following mass percent：
2. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
3. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
4. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
5. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
6. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
7. environmentally friendly efficient reactivity sludge dehydrating agent according to claim 1, it is characterised in that including following matter
Measure the component of percentage：
8. the preparation method of the environmentally friendly efficient reactivity sludge dehydrating agent described in claim 1-7 any one, it is special
Sign is, said components are mixed in proportion, and obtains environmentally friendly reactive sludge dehydrating agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957343.0A CN107698130A (en) | 2017-10-16 | 2017-10-16 | A kind of environmentally friendly efficient reactivity sludge dehydrating agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957343.0A CN107698130A (en) | 2017-10-16 | 2017-10-16 | A kind of environmentally friendly efficient reactivity sludge dehydrating agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107698130A true CN107698130A (en) | 2018-02-16 |
Family
ID=61185047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710957343.0A Pending CN107698130A (en) | 2017-10-16 | 2017-10-16 | A kind of environmentally friendly efficient reactivity sludge dehydrating agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107698130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640451A (en) * | 2018-05-31 | 2018-10-12 | 中铁十七局集团第二工程有限公司 | A kind of purifying agent and preparation method suitable for bridge drilling mud |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE894713A (en) * | 1981-11-27 | 1983-01-31 | Buckman Labor Inc | POLYMERS GRAFTS OF QUATERNARY AMMONIUM |
| CN106746482A (en) * | 2017-01-19 | 2017-05-31 | 安徽省通源环境节能股份有限公司 | The compound conditioner of sludge dewatering and mud dewatering method |
-
2017
- 2017-10-16 CN CN201710957343.0A patent/CN107698130A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE894713A (en) * | 1981-11-27 | 1983-01-31 | Buckman Labor Inc | POLYMERS GRAFTS OF QUATERNARY AMMONIUM |
| CN106746482A (en) * | 2017-01-19 | 2017-05-31 | 安徽省通源环境节能股份有限公司 | The compound conditioner of sludge dewatering and mud dewatering method |
Non-Patent Citations (3)
| Title |
|---|
| 何铁林: "《水处理化学品手册》", 31 May 2000, 化学工业出版社 * |
| 王星等: "《污泥生物处理技术》", 31 March 2010, 冶金工业出版社 * |
| 郭京育等: "《聚羧酸系高性能减水剂制备、性能与应用技术新进展第六届混凝土外加剂应用技术专业委员会年会》", 31 May 2013, 北京理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108640451A (en) * | 2018-05-31 | 2018-10-12 | 中铁十七局集团第二工程有限公司 | A kind of purifying agent and preparation method suitable for bridge drilling mud |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
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| RJ01 | Rejection of invention patent application after publication |