CN108529836A - A kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge - Google Patents
A kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge Download PDFInfo
- Publication number
- CN108529836A CN108529836A CN201810366403.6A CN201810366403A CN108529836A CN 108529836 A CN108529836 A CN 108529836A CN 201810366403 A CN201810366403 A CN 201810366403A CN 108529836 A CN108529836 A CN 108529836A
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- component
- ammonium chloride
- sludge
- diallyl ammonium
- raw material
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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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
The present invention relates to a kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge, it is characterized in that：It includes component A and B component to manufacture raw material, and component A is made by polyethers-silica copolymer, dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride, initiator, and initiator is：Persulfate or bisulfites；B component is made by water, aluminium polychloride, polyamine, dispersant, and dispersant is sodium sulfonate；By component A by weight 70~50：30~50 are added in the B component of stirring, and temperature control is compounded at 10~50 DEG C, and high-efficiency sedimentation agent is made.Its advantage is that：To different sewage biochemical process generate sludge it is swollen rise, all can rapid subsidence, ensure the normal operation of sewage disposal system.
Description
Technical field
The present invention relates to a kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge, belong to the chemical agent neck in biochemical sewage technique
Domain.
Background technology
In sewage disposal system technique, since some shortcomings or process do not counted are improper, climate change, into
The factors such as water water quality change, may occur in which activated sludge（It is swollen to rise）Rising phenomenon, i.e., in secondary settling tank, it may occur that activated sludge is not
Precipitation, and outflow with water or agglomerate blocking from underwater the phenomenon that floating, this will result directly in the deterioration of discharge outflow water.
The activated sludge floating analysis of causes：
There are mainly three types of the case where causing activated sludge to float and influencing effluent quality：A, digestion b, sludge denitrification c, filiform
Bacterium sludge is swollen to rise.
Activated sludge floating reason is described below caused by these three specific situations：
A, digestion leads to the reason of Mud up-floating：
The reason of digestion usually occurs is concentrated mainly on misoperation, the too small aspect of aeration quantity.The activated sludge of secondary settling tank
It may be degenerated due to anoxic, cause anaerobic digestion, generate bulk gas, and activated sludge is caused to float.
B, sludge denitrification leads to the reason of Mud up-floating：
Mixed liquor aeration time is long or when aeration quantity is excessive in aeration tank, and height nitrification will occur in aeration tank and make
In the mixed liquor of aeration tank containing more nitrate (especially when into aeration tank sewage, contain more nitridation in waste water
When closing object).At this moment, aeration tank mixed liquor may make Mud up-floating after flowing to secondary settling tank due to denitrification.The reason is that anti-
Gas caused by the effect of nitrifier can form minute bubbles in activated sludge, lead to the activated sludge ratio for having adsorbed bubble
It reduces again, and the floating of monoblock finally occurs or float comprehensively as snowflake.
C, the reason of filamentary discharges cause activated sludge to float：
The reason of der Pilz causes activated sludge to float has been mingled with excessive tiny gas after all or in activated sludge floc sedimentation
Bubble leads to the reduction of activated sludge proportion, is not achieved when progress mud-water separation in secondary settling tank and efficiently separates effect, finally
There is the phenomenon that activated sludge floats.
Invention content
The object of the present invention is to provide a kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge, this sedimentation agent is in biochemical sewage technique
Middle use can reduce gas and sludge interface free energy, to prevent gas from resting in sludge, reduce sludge buoyancy；Together
Unstable colloidal particles make zeta potential reduce by compression double electric layer in Shi Nengrang sludge, make charge from sludge colloidal solid table
Face is spread apart, and destroys the colloidal particle stability in water, is reduced thickness of diffusion layer, the repulsive force of reduction to each other, is reached sludge
Settle purpose, the normal operation of recovery system.
Technical scheme is as follows：
The raw material of manufacturing of the swollen dedicated high-efficiency sedimentation agent of rising of sludge of the present invention includes component A and B component, and component A is by polyethers-
Silica copolymer, dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride, initiator are made, wherein：Polyethers-silicon
Oxygen copolymer, dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride weight ratio proportion relation be 1：0.25~
0.5：0.25~0.5, initiator is component A raw material gross weight（3~6）%, initiator are：Persulfate or bisulfites；
B component is made by water, aluminium polychloride, polyamine, dispersant, wherein：The weight ratio proportion relation of water, aluminium polychloride, polyamine
It is 65~60:30:5~10, dispersant is B component raw material gross weight 2.5~5%, and dispersant is sodium sulfonate；The preparation side of component A
Method is：Raw material proportioning is pressed in a kettle, and polyethers -- silica copolymer, dimethyl diallyl ammonium chloride, diethyl diene is added
Component A was made in 10~60 DEG C of thermotonuses 3~4 hours in propyl ammonium chloride, initiator；The preparation method of B component is：
Water, aluminium polychloride is added by raw material proportioning in another reaction kettle, after stirring evenly, polyamine is added, after dropwise addition is diluted with water
Dispersant, the B component made after stirring evenly；By component A by weight 70~50：30~50 are added to the B groups of stirring
In part, temperature control is compounded at 10~50 DEG C, and high-efficiency sedimentation agent is made.
The component A and B component are polymer.
It is an advantage of the invention that：The present invention solves the difficult point of the long-term technology controlling and process of sludge biochemical treatment system, by right
Sludge quality is analyzed, and is adjusted the compound proportion of polymer component A and B component, can be reduced gas and sludge interface free energy, from
And prevent gas from resting in sludge, and unstable colloidal particles in sludge can be allowed to be agglomerated by compression double electric layer, increase
Add sludge volume density to reduce sludge buoyancy, the sludge generated to different sewage biochemical process is swollen to rise, all can rapid subsidence, ensure dirty
The normal operation of water treatment system；Manufacture technology of the present invention is simple, no pressure, three-waste free discharge.Usage amount is few, at low cost, especially
There is extraordinary purposes to the operation of northern sewage plant winter high concentration.
Specific implementation mode
For the product of the present invention from more than the north experiment use has been carried out in sewerage since 2016, it is very good to achieve
Effect.
Embodiment：
It is as follows in packet header purification of water quality factory service condition：
50,000 tons of treated sewage of the factory day, technique are：Water → just heavy（Primary sedimentation tank）→A2O is biochemical（Detest aerobic biochemical pool）→ bis-
It is heavy（Secondary settling tank）→ clarification（Clarifying basin）→ water outlet.
The factory starts to occur that sludge is swollen to rise after annual mid-October, be 6000~7000mg/ into secondary settling tank sludge concentration
L, secondary settling tank do not have clear water layer, entirely sludge, auspicious before secondary settling tank water inlet to add 20~30mg/L of this product, delivery turbidity,
Clear water layer is as follows：
Explanation：Delivery turbidity is identical as water inlet when 1, not offeing medicine, and second pond supernatant height is 0.
2, during the process system use of other sewage treatment plants, the case where occurring is similar just not to be arranged one by one
It lifts.
3, product of the invention nearly ten million ton of sewage of test process, works well, people is saved using unit to experiment
Power, the energy and expense ensure that water outlet reaches national requirements for environmental protection.
Claims (1)
1. a kind of swollen dedicated high-efficiency sedimentation agent of rising of sludge, it is characterized in that：Manufacture raw material include component A and B component, component A by
Polyethers-silica copolymer, dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride, initiator are made, wherein：It is poly-
Ether-silica copolymer, dimethyl diallyl ammonium chloride, diethyl diallyl ammonium chloride weight ratio proportion relation be 1：
0.25~0.5：0.25~0.5, initiator is component A raw material gross weight（3~6）%, initiator are：Persulfate or sulfurous
Sour hydrogen salt；B component is made by water, aluminium polychloride, polyamine, dispersant, wherein：Water, aluminium polychloride, polyamine weight ratio match
It is 65~60 than relationship:30:5~10, dispersant is B component raw material gross weight 2.5~5%, and dispersant is sodium sulfonate；Component A
Preparation method is：Raw material proportioning is pressed in a kettle, and polyethers -- silica copolymer, dimethyl diallyl ammonium chloride, diethyl is added
Component A was made in 10~60 DEG C of thermotonuses 3~4 hours in base diallyl ammonium chloride, initiator；The preparation method of B component
It is：Water, aluminium polychloride is added by raw material proportioning in another reaction kettle, after stirring evenly, adds polyamine, dropwise addition water is dilute
Dispersant after releasing, the B component made after stirring evenly；By component A by weight 70~50：30~50 are added to stirring
In B component, temperature control is compounded at 10~50 DEG C, and high-efficiency sedimentation agent is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366403.6A CN108529836B (en) | 2018-04-23 | 2018-04-23 | Efficient settling agent special for sludge expansion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366403.6A CN108529836B (en) | 2018-04-23 | 2018-04-23 | Efficient settling agent special for sludge expansion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108529836A true CN108529836A (en) | 2018-09-14 |
| CN108529836B CN108529836B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366403.6A Active CN108529836B (en) | 2018-04-23 | 2018-04-23 | Efficient settling agent special for sludge expansion |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628746A (en) * | 2009-08-26 | 2010-01-20 | 暨南大学 | Polymeric aluminum ferric chloride-polydimethyldiallylammonium chloride composite coagulant and preparation method thereof |
| CN102532418A (en) * | 2012-02-07 | 2012-07-04 | 山东大学 | Grating-modified composite bio-flocculant and preparing method thereof |
| CN103304015A (en) * | 2013-05-20 | 2013-09-18 | 秦小林 | PAC-PDMDAAC composite polymer coagulant for water treatment and preparation method thereof |
| CN103351047A (en) * | 2013-07-30 | 2013-10-16 | 重庆大学 | Organic-inorganic hybrid flocculant and preparation method thereof |
| CN104130351A (en) * | 2014-07-23 | 2014-11-05 | 威海汉邦生物环保科技有限公司 | Grafted copolymerized cationic polysaccharide bioflocculant and preparation method thereof |
| CN106477700A (en) * | 2016-11-10 | 2017-03-08 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of organosilicon demulsifying flocculant and its application |
-
2018
- 2018-04-23 CN CN201810366403.6A patent/CN108529836B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628746A (en) * | 2009-08-26 | 2010-01-20 | 暨南大学 | Polymeric aluminum ferric chloride-polydimethyldiallylammonium chloride composite coagulant and preparation method thereof |
| CN102532418A (en) * | 2012-02-07 | 2012-07-04 | 山东大学 | Grating-modified composite bio-flocculant and preparing method thereof |
| CN103304015A (en) * | 2013-05-20 | 2013-09-18 | 秦小林 | PAC-PDMDAAC composite polymer coagulant for water treatment and preparation method thereof |
| CN103351047A (en) * | 2013-07-30 | 2013-10-16 | 重庆大学 | Organic-inorganic hybrid flocculant and preparation method thereof |
| CN104130351A (en) * | 2014-07-23 | 2014-11-05 | 威海汉邦生物环保科技有限公司 | Grafted copolymerized cationic polysaccharide bioflocculant and preparation method thereof |
| CN106477700A (en) * | 2016-11-10 | 2017-03-08 | 上海纳米技术及应用国家工程研究中心有限公司 | A kind of organosilicon demulsifying flocculant and its application |
Non-Patent Citations (4)
| Title |
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| 傅中: "有机硅季铵盐表面活性剂的合成及应用研究进展", 《广东轻工职业技术学院学报》 * |
| 许明标等: "《聚合物在油气田开采中的应用》", 31 January 2000, 武汉：中国地质大学出版社 * |
| 高艳玲等: "《污水生物处理新技术》", 31 January 2006, 北京：中国建材工业出版社 * |
| 黄良仙等: "聚硅氧烷季铵盐的合成及应用研究进展", 《有机硅科技》 * |
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| CN108529836B (en) | 2021-03-26 |
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