CN102815850A - Method of filter-pressing sludge of concentration tank and septic tank of sewage plant - Google Patents
Method of filter-pressing sludge of concentration tank and septic tank of sewage plant Download PDFInfo
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- CN102815850A CN102815850A CN2012102706354A CN201210270635A CN102815850A CN 102815850 A CN102815850 A CN 102815850A CN 2012102706354 A CN2012102706354 A CN 2012102706354A CN 201210270635 A CN201210270635 A CN 201210270635A CN 102815850 A CN102815850 A CN 102815850A
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- mud
- septic tank
- press filtration
- sewage plant
- concentration basin
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Abstract
The invention relates to a dewatering treatment of a pollutant, in particular to a method of filter-pressing sludge of a concentration tank and a septic tank of a sewage plant. The method comprises the steps of: (1) sending sludge in the concentration tank and the septic tank into a dispensing tank, firstly adding a ferric trichloride solution of which a dry sludge mass is 15%, secondly adding a calcined lime of which a dry sludge mass is 10% to stir and perform dispensing, and (2) conducting filter-pressing treatment to obtain block-shaped sludge of which a moisture content is 35-60%. With the adoption of the dewatering treatment, existing filter-pressing process is changed; though the process of adding water to dilute is only saved during the process, and the generation of secondary filter-pressing is directly avoided, so that the maximization of the economic benefit and the work efficiency is greatly achieved.
Description
Technical field
The present invention relates to a kind of processed of pollutent, specifically is a kind of with Sewage Plant concentration basin and the direct press filtration method of septic tank mud.
Background technology
Existing most sewage works adopt belt filter press and whizzer that concentration basin and septic tank mud are carried out processed, and the moisture percentage in sewage sludge after the processing is about 80%.This method has following deficiency, and the one, water ratio is too high, and the difficulty of subsequent disposal is increased, and the 2nd, still need thin up when carrying out the secondary press filtration.
Summary of the invention
The technical issues that need to address of the present invention are, overcome the existing deficiency of prior art, and a kind of method that Sewage Plant concentration basin and septic tank mud are carried out direct press filtration is provided, and can moisture percentage in sewage sludge be reduced to about 35 ~ 60%.
Particularly, the contriver provides following technical scheme:
The press filtration method of a kind of Sewage Plant concentration basin and septic tank mud comprises:
(1) mud pre-treatment
Mud is sent into the adjustment pond in concentration basin and the septic tank, adds the liquor ferri trichloridi of dewatered sludge quality 15% earlier; The unslaked lime that dewatered sludge quality 10% is added in the back stirs adjustment,
(2) press filtration is handled
1. compress: the filter plate of plate-and-frame filter press is compressed the formation packing state,
2. charging: utilize high pressure screw pump will adjust good mud and squeeze in the plate-and-frame filter press,
3. squeezing: the squeeze through water forms in membrane filter plate is carried out press filtration to mud,
4. blanking: squeezing process unclamps filter plate after accomplishing, and meeting formation water ratio is 35 ~ 60% block mud on filter cloth.
As preferably, according to the press filtration method of a kind of Sewage Plant concentration basin of the present invention and septic tank mud, wherein, sludge concentration is 97-99% in concentration basin and the septic tank.
As preferably, according to the press filtration method of a kind of Sewage Plant concentration basin of the present invention and septic tank mud, wherein, the concentration of liquor ferri trichloridi is 10% in the described step (1).
As preferably, according to the press filtration method of a kind of Sewage Plant concentration basin of the present invention and septic tank mud, wherein, in the step (2) 2. feed pressure be 1MP.
As preferably, according to the press filtration method of a kind of Sewage Plant concentration basin of the present invention and septic tank mud, wherein, in the step (2) 1. the pressure of packing state be 0.7MP.
As preferably, according to the press filtration method of a kind of Sewage Plant concentration basin of the present invention and septic tank mud, wherein, the squeeze that 3. forms in membrane filter plate through water in the step (2) is 1.8MP.
Compared with prior art, the present invention has the following advantages:
The present invention changes existing filter-pressing process, though in the middle of this process, only saved this procedure of thin up, has but directly avoided the generation of secondary press filtration.No matter in economic benefit, or all realized maximization on the working efficiency.
Embodiment
Below in conjunction with embodiment, content of the present invention is described more specifically.
In the present invention, if not refer in particular to, all part, per-cents are weight unit, and all equipment and raw material etc. all can be buied from market or the industry is commonly used.Method among the following embodiment if no special instructions, is the ordinary method of this area.
Embodiment 1
The press filtration method of a kind of Sewage Plant concentration basin and septic tank mud comprises:
(1) mud pre-treatment:
Sludge concentration is about 97% in concentration basin and the septic tank, and the mode through pipe-line transportation is added the liquor ferri trichloridi of dewatered sludge quality 15% earlier to adjusting the pond, and its concentration is about 10%; The unslaked lime that dewatered sludge quality 10% is added in the back stirs the 30min adjustment.After stirring the adjustment completion, can carry out press filtration to mud.
(2) press filtration is handled
1. compress: 93 filter plates of plate-and-frame filter press are compressed formation packing state (0.7MP).
2. charging: utilize high pressure screw pump will adjust good mud and squeeze in the plate-and-frame filter press, feed pressure is about 1MP.
3. squeezing: the squeeze (being about 1.8MP) through water forms in membrane filter plate is carried out press filtration to mud.
4. blanking: squeezing process unclamps filter plate after accomplishing, and is about 35 ~ 60% block mud at meeting formation water ratio on the filter cloth.
Embodiment 2.
The press filtration method of a kind of Sewage Plant concentration basin and septic tank mud comprises:
(1) mud pre-treatment:
Sludge concentration is about 99% in concentration basin and the septic tank, and the mode through pipe-line transportation is added the liquor ferri trichloridi of dewatered sludge quality 15% earlier to adjusting the pond, and its concentration is about 10%; The unslaked lime that dewatered sludge quality 10% is added in the back stirs the 30min adjustment.After stirring the adjustment completion, can carry out press filtration to mud.
(2) press filtration is handled
1. compress: 93 filter plates of plate-and-frame filter press are compressed formation packing state (0.7MP).
2. charging: utilize high pressure screw pump will adjust good mud and squeeze in the plate-and-frame filter press, feed pressure is about 1MP.
3. squeezing: the squeeze (being about 1.8MP) through water forms in membrane filter plate is carried out press filtration to mud.
4. blanking: squeezing process unclamps filter plate after accomplishing, and is about 35 ~ 60% block mud at meeting formation water ratio on the filter cloth.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to the foregoing description, and many distortion can also be arranged.Every all distortion of directly deriving or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (6)
1. the press filtration method of Sewage Plant concentration basin and septic tank mud is characterized in that comprising:
(1) mud pre-treatment
Mud is sent into the adjustment pond in concentration basin and the septic tank, adds the liquor ferri trichloridi of dewatered sludge quality 15% earlier; The unslaked lime that dewatered sludge quality 10% is added in the back stirs adjustment,
(2) press filtration is handled
1. compress: the filter plate of plate-and-frame filter press is compressed the formation packing state,
2. charging: utilize high pressure screw pump will adjust good mud and squeeze in the plate-and-frame filter press,
3. squeezing: the squeeze through water forms in membrane filter plate is carried out press filtration to mud,
4. blanking: squeezing process unclamps filter plate after accomplishing, and meeting formation water ratio is 35 ~ 60% block mud on filter cloth.
2. the press filtration method of a kind of Sewage Plant concentration basin according to claim 1 and septic tank mud is characterized in that, sludge concentration is 97-99% in concentration basin and the septic tank.
3. the press filtration method of a kind of Sewage Plant concentration basin according to claim 1 and septic tank mud is characterized in that, the concentration of liquor ferri trichloridi is 10% in the described step (1).
4. the press filtration method of a kind of Sewage Plant concentration basin according to claim 1 and septic tank mud is characterized in that, in the step (2) 2. feed pressure be 1MP.
5. the press filtration method of a kind of Sewage Plant concentration basin according to claim 1 and septic tank mud is characterized in that, in the step (2) 1. the pressure of packing state be 0.7MP.
6. the press filtration method of a kind of Sewage Plant concentration basin according to claim 1 and septic tank mud is characterized in that the squeeze that 3. forms in membrane filter plate through water in the step (2) is 1.8MP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102706354A CN102815850A (en) | 2012-08-01 | 2012-08-01 | Method of filter-pressing sludge of concentration tank and septic tank of sewage plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102706354A CN102815850A (en) | 2012-08-01 | 2012-08-01 | Method of filter-pressing sludge of concentration tank and septic tank of sewage plant |
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| CN102815850A true CN102815850A (en) | 2012-12-12 |
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| CN2012102706354A Pending CN102815850A (en) | 2012-08-01 | 2012-08-01 | Method of filter-pressing sludge of concentration tank and septic tank of sewage plant |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693841A (en) * | 2013-12-24 | 2014-04-02 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN103896475A (en) * | 2014-03-13 | 2014-07-02 | 南京道科环境科技有限公司 | Regulation method for high-dryness dehydration of sludge |
| CN105461190A (en) * | 2015-12-30 | 2016-04-06 | 聚光科技(杭州)股份有限公司 | Method for coprocessing of sludge in sewage plant and pickling waste water in iron and steel plant |
| CN110395878A (en) * | 2019-06-18 | 2019-11-01 | 路德环境科技股份有限公司 | A kind of municipal sludge deep dewatering, solidifying method |
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| KR20090018696A (en) * | 2009-01-29 | 2009-02-20 | 주식회사 대협이앤지 | Drum type sludge concentration apparatus |
| CN101691272A (en) * | 2009-10-01 | 2010-04-07 | 厦门水务集团有限公司 | Sludge dewatering method |
| CN102139999A (en) * | 2011-02-09 | 2011-08-03 | 中粮麦芽（大连）有限公司 | Reducing and recycling treatment method for biological activated sludge |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20090018696A (en) * | 2009-01-29 | 2009-02-20 | 주식회사 대협이앤지 | Drum type sludge concentration apparatus |
| CN101691272A (en) * | 2009-10-01 | 2010-04-07 | 厦门水务集团有限公司 | Sludge dewatering method |
| CN102139999A (en) * | 2011-02-09 | 2011-08-03 | 中粮麦芽（大连）有限公司 | Reducing and recycling treatment method for biological activated sludge |
Non-Patent Citations (2)
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| 蒋辉 等: "《环境工程技术》", 30 June 2003, article "污泥的处理与处置", pages: 146 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693841A (en) * | 2013-12-24 | 2014-04-02 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN103693841B (en) * | 2013-12-24 | 2015-05-20 | 华新环境工程有限公司 | Method and system for deep dehydration of sludge |
| CN103896475A (en) * | 2014-03-13 | 2014-07-02 | 南京道科环境科技有限公司 | Regulation method for high-dryness dehydration of sludge |
| CN103896475B (en) * | 2014-03-13 | 2015-09-16 | 江苏道科环境科技有限公司 | A kind of Opsonizing method of sludge high-drying dehydration |
| CN105461190A (en) * | 2015-12-30 | 2016-04-06 | 聚光科技(杭州)股份有限公司 | Method for coprocessing of sludge in sewage plant and pickling waste water in iron and steel plant |
| CN110395878A (en) * | 2019-06-18 | 2019-11-01 | 路德环境科技股份有限公司 | A kind of municipal sludge deep dewatering, solidifying method |
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Application publication date: 20121212 |