CN106957137A - A kind of method for sludge treatment - Google Patents
A kind of method for sludge treatment Download PDFInfo
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- CN106957137A CN106957137A CN201710363980.5A CN201710363980A CN106957137A CN 106957137 A CN106957137 A CN 106957137A CN 201710363980 A CN201710363980 A CN 201710363980A CN 106957137 A CN106957137 A CN 106957137A
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- sludge treatment
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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
Abstract
The invention discloses a kind of method for sludge treatment, comprise the following steps：A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature, the present invention is simple to operate, and operating process is environment friendly and pollution-free, with zero-emission, it is complete reclaim, non-secondary pollution the characteristics of.
Description
Technical field
The present invention relates to technical field of sludge treatment, specially a kind of method for sludge treatment.
Background technology
Because residual active sludge environmental pollution is serious, complicated component handles very difficult, and therefore, this turns into dirt
The problem that water process is brought, thus as focus of concern.To solve pollution of the residual active sludge to environment, Ren Men
Substantial amounts of R＆D work is carried out in terms of residual active sludge decrement, has developed a series of Reduction Technologies, such as residual activity is dirty
Mud desiccation Landfill, composting technology, incineration technology etc..These technologies have certain effect to residual active sludge decrement
Really, but all there is substantially deficiency, such as desiccation Landfill does not only take up substantial amounts of soil, and to underground water with pollution wind
Danger；Composting technology can cause heavy metal pollution and biological pollution to soil in use；Incineration technology not only will to equipment
Ask very high, processing cost high, and the pernicious gas of pollution air can be produced.Existing sewage-treatment plant complex structure, and
Complex treatment process, cost of labor is high, poor processing effect.
The content of the invention
It is an object of the invention to provide a kind of method for sludge treatment, the problem of to solve to propose in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature.
It is preferred that, in the step C absorbent component by weight include 10-20 parts of biological carbon, 5-10 parts of sodium metasilicate,
4-12 parts of boric acid ester coupler, 3-10 parts of anhydrous magnesium chloride, 3-10 parts of aspartic acid, 5-12 parts of nano zine oxide, expanded pearlite
5-10 parts of 10-20 parts of rock, 2-6 parts of glass fibre, 10-20 parts of diatomite in powder, 4-8 parts of sodium humate and carboxymethyl chitosan.
It is preferred that, temperature is 55 DEG C -60 DEG C in the step B；Fermentation time is 24h-36h.
It is preferred that, buffer solution uses phosphate buffer in the step C.
It is preferred that, drying temperature is 70 DEG C -90 DEG C in the step D, and drying time is 15min-35min.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is simple to operate, operating process environmental protection nothing
Pollution, with zero-emission, it is complete reclaim, non-secondary pollution the characteristics of；Wherein, the adsorbent absorption of use
Agent can adsorb the heavy metal ion in sludge completely, in the absence of secondary pollution, and adsorbent can be repeated several times
Use, heavy metal recovery is easy；In addition, the diatomite used in the present invention, sodium humate, expansion treasure
Zhu Yan and carboxymethyl chitosan are respectively provided with environment friendly and pollution-free and removing toxic substances effect, with the use of can strengthen
Detoxicating functions are carried out to the toxic pollutant in sludge, microorganism, processing cost is reduced, reduces place
The toxicity of sludge after reason.
Embodiment
The technical scheme in the embodiment of the present invention is clearly and completely described below, it is clear that described embodiment
Only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
Embodiment one：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Temperature
Spend for 55 DEG C；Fermentation time is 24h；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；Buffer solution
Using phosphate buffer；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature；Drying temperature is 70 DEG C, and drying time is 15min.
In the present embodiment, absorbent component includes 10 parts of biological carbon, 5 parts of sodium metasilicate, borate by weight in step C
4 parts of coupling agent, 3 parts of anhydrous magnesium chloride, 3 parts of aspartic acid, 5 parts of nano zine oxide, 10 parts of expanded perlite, 2 parts of glass fibre,
5 parts of 10 parts of diatomite in powder, 4 parts of sodium humate and carboxymethyl chitosan.
Embodiment two：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Temperature
Spend for 60 DEG C；Fermentation time is 36h；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；Buffer solution
Using phosphate buffer；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature；Drying temperature is 90 DEG C, and drying time is 35min.
In the present embodiment, absorbent component includes 20 parts of biological carbon, 10 parts of sodium metasilicate, boric acid by weight in step C
12 parts of ester coupling agent, 10 parts of anhydrous magnesium chloride, 10 parts of aspartic acid, 12 parts of nano zine oxide, 20 parts of expanded perlite, glass fibers
10 parts of 6 parts of dimension, 20 parts of diatomite in powder, 8 parts of sodium humate and carboxymethyl chitosan.
Embodiment three：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Temperature
Spend for 57 DEG C；Fermentation time is 26h；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；Buffer solution
Using phosphate buffer；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature；Drying temperature is 75 DEG C, and drying time is 20min.
In the present embodiment, absorbent component includes 12 parts of biological carbon, 7 parts of sodium metasilicate, borate by weight in step C
5 parts of coupling agent, 5 parts of anhydrous magnesium chloride, 4 parts of aspartic acid, 6 parts of nano zine oxide, 12 parts of expanded perlite, 3 parts of glass fibre,
6 parts of 12 parts of diatomite in powder, 5 parts of sodium humate and carboxymethyl chitosan.
Example IV：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Temperature
Spend for 58 DEG C；Fermentation time is 32h；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；Buffer solution
Using phosphate buffer；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature；Drying temperature is 85 DEG C, and drying time is 30min.
In the present embodiment, absorbent component includes 18 parts of biological carbon, 8 parts of sodium metasilicate, borate by weight in step C
11 parts of coupling agent, 9 parts of anhydrous magnesium chloride, 9 parts of aspartic acid, 11 parts of nano zine oxide, 18 parts of expanded perlite, glass fibre 5
Part, 18 parts of diatomite in powder, 7 parts of sodium humate and 8 parts of carboxymethyl chitosan.
Embodiment five：
A kind of method for sludge treatment, comprises the following steps：
A, will sludge add grinder in be ground, after grinding cross 200 mesh sieves, remove large granular impurity；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；Temperature
Spend for 57 DEG C；Fermentation time is 30h；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；Buffer solution
Using phosphate buffer；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature；Drying temperature is 80 DEG C, and drying time is 25min.
In the present embodiment, absorbent component includes 15 parts of biological carbon, 7 parts of sodium metasilicate, borate by weight in step C
8 parts of coupling agent, 7 parts of anhydrous magnesium chloride, 7 parts of aspartic acid, 9 parts of nano zine oxide, 15 parts of expanded perlite, 4 parts of glass fibre,
8 parts of 15 parts of diatomite in powder, 6 parts of sodium humate and carboxymethyl chitosan.
The present invention is simple to operate, and operating process is environment friendly and pollution-free, with zero-emission, full recovery, without secondary
The characteristics of pollution；Wherein, the adsorbent adsorbent of use can adsorb the heavy metal ion in sludge completely, in the absence of two
Secondary pollution, adsorbent can be repeatedly used, and heavy metal recovery is easy；In addition, the diatomite used in the present invention, humic acid
Sodium, expanded perlite and carboxymethyl chitosan are respectively provided with environment friendly and pollution-free and removing toxic substances effect, with the use of can strengthen pair
Toxic pollutant, microorganism in sludge carry out detoxicating functions, reduce processing cost, reduce the toxicity of sludge after processing.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand and these embodiments can be carried out without departing from the principles and spirit of the present invention a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of method for sludge treatment, it is characterised in that：Comprise the following steps：
Sludge is added and is ground in grinder, 200 mesh sieves are crossed after grinding, large granular impurity is removed；
B, sludge after filtering added in anaerobic digester and carry out anaerobic fermentation afterwards, and control temperature and fermentation time；
Adsorbent and buffer solution are added in C, sludge afterwards after anaerobic fermentation and uniform stirring concentration is carried out；
D, the sludge after processing is dehydrated afterwards after freeze-day with constant temperature.
2. a kind of method for sludge treatment according to claim 1, it is characterised in that：Absorbent component is pressed in the step C
Parts by weight include 10-20 parts of biological carbon, 5-10 parts of sodium metasilicate, 4-12 parts of boric acid ester coupler, 3-10 parts of anhydrous magnesium chloride, day
Propylhomoserin 3-10 parts of winter, 5-12 parts of nano zine oxide, 10-20 parts of expanded perlite, 2-6 parts of glass fibre, diatomite in powder 10-20
5-10 parts of part, 4-8 parts of sodium humate and carboxymethyl chitosan.
3. a kind of method for sludge treatment according to claim 1, it is characterised in that：Temperature is 55 DEG C -60 in the step B
℃；Fermentation time is 24h-36h.
4. a kind of method for sludge treatment according to claim 1, it is characterised in that：Buffer solution uses phosphorus in the step C
Phthalate buffer.
5. a kind of method for sludge treatment according to claim 1, it is characterised in that：Drying temperature is 70 in the step D
DEG C -90 DEG C, drying time is 15min-35min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710363980.5A CN106957137A (en) | 2017-05-22 | 2017-05-22 | A kind of method for sludge treatment |
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| CN201710363980.5A CN106957137A (en) | 2017-05-22 | 2017-05-22 | A kind of method for sludge treatment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739179A (en) * | 2013-06-24 | 2014-04-23 | 四川海普流体技术有限公司 | Sludge pre-treatment method |
| CN104163553A (en) * | 2014-08-01 | 2014-11-26 | 刘欢欢 | Sludge treatment method |
| CN105688843A (en) * | 2016-01-26 | 2016-06-22 | 蒋金香 | Mesoporous carbon material of heavy metal ion adsorbent for sewage and preparation method of mesoporous carbon material |
| CN105879852A (en) * | 2016-06-16 | 2016-08-24 | 马鞍山市顺达环保设备有限公司 | Heavy metal absorbent |
| CN106007290A (en) * | 2016-07-14 | 2016-10-12 | 慎叶 | Novel environment-friendly sludge heavy metal remover and preparation method thereof |
-
2017
- 2017-05-22 CN CN201710363980.5A patent/CN106957137A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103739179A (en) * | 2013-06-24 | 2014-04-23 | 四川海普流体技术有限公司 | Sludge pre-treatment method |
| CN104163553A (en) * | 2014-08-01 | 2014-11-26 | 刘欢欢 | Sludge treatment method |
| CN105688843A (en) * | 2016-01-26 | 2016-06-22 | 蒋金香 | Mesoporous carbon material of heavy metal ion adsorbent for sewage and preparation method of mesoporous carbon material |
| CN105879852A (en) * | 2016-06-16 | 2016-08-24 | 马鞍山市顺达环保设备有限公司 | Heavy metal absorbent |
| CN106007290A (en) * | 2016-07-14 | 2016-10-12 | 慎叶 | Novel environment-friendly sludge heavy metal remover and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 丁彤等编: "《中国化工产品大全 下》", 31 October 1994 * |
| 赵由才等编: "《固体废物处理与资源化》", 28 February 2006 * |
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Application publication date: 20170718 |