JP2019177351A5 - - Google Patents
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- JP2019177351A5 JP2019177351A5 JP2018068478A JP2018068478A JP2019177351A5 JP 2019177351 A5 JP2019177351 A5 JP 2019177351A5 JP 2018068478 A JP2018068478 A JP 2018068478A JP 2018068478 A JP2018068478 A JP 2018068478A JP 2019177351 A5 JP2019177351 A5 JP 2019177351A5
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- organic
- dehydrating
- coagulant
- organic coagulant
- Prior art date
- 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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- 239000010802 sludge Substances 0.000 claims 23
- 239000000701 coagulant Substances 0.000 claims 12
- 238000000034 method Methods 0.000 claims 5
- 230000018044 dehydration Effects 0.000 claims 3
- 238000006297 dehydration reaction Methods 0.000 claims 3
- 238000001704 evaporation Methods 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 2
- 239000000706 filtrate Substances 0.000 claims 2
- 229920000642 polymer Polymers 0.000 claims 2
- 150000001768 cations Chemical class 0.000 claims 1
- 238000010790 dilution Methods 0.000 claims 1
- 239000012895 dilution Substances 0.000 claims 1
- 230000003311 flocculating effect Effects 0.000 claims 1
- 238000005189 flocculation Methods 0.000 claims 1
- 230000016615 flocculation Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 239000011550 stock solution Substances 0.000 claims 1
Claims (7)
前記凝集された汚泥を濃縮及び加圧脱水する工程と、
前記濃縮後又は前記加圧脱水後の汚泥に有機凝結剤を添加する工程と、
前記有機凝結剤が添加された汚泥を機械的に脱水する工程と、を含み、
前記有機凝結剤が添加された汚泥およびその脱水ろ液のうちの少なくとも一方のｐＨが６以上であり、前記濃縮及び加圧脱水された汚泥の蒸発残留物（ＴＳ）が４０〜１５０ｇ／Ｌであることを特徴とする有機性汚泥の脱水方法。 A step of adding a polymer flocculant to the organic sludge to coagulate the organic sludge;
A step of concentrating and pressure dehydrating the agglomerated sludge,
A step of adding an organic coagulant to the sludge after the concentration or after the pressure dehydration,
Mechanically dehydrating the sludge to which the organic coagulant has been added,
At least one of the sludge to which the organic coagulant is added and the dehydrated filtrate thereof has a pH of 6 or more, and the evaporation residue (TS) of the concentrated and pressurized dehydrated sludge is 40 to 150 g / L. A method for dehydrating organic sludge characterized by being present.
前記凝集された汚泥を濃縮する濃縮手段と、
前記濃縮された汚泥を加圧脱水する加圧脱水手段と、
前記濃縮後又は前記加圧脱水後の汚泥に有機凝結剤を添加する有機凝結剤添加手段と、
前記有機凝結剤が添加された汚泥を機械的に脱水する脱水手段と、を含み、
前記有機凝結剤が添加された汚泥およびその脱水ろ液のうちの少なくとも一方のｐＨが６以上であり、前記濃縮及び加圧脱水された汚泥の蒸発残留物（ＴＳ）が４０〜１５０ｇ／Ｌであることを特徴とする有機性汚泥の脱水に用いる処理装置。 A flocculation means for flocculating the organic sludge by adding a polymer flocculant to the organic sludge,
Concentrating means for concentrating the agglomerated sludge,
Pressure dewatering means for dewatering the concentrated sludge under pressure,
An organic coagulant adding means for adding an organic coagulant to the sludge after the concentration or after the pressure dehydration,
Dewatering means for mechanically dehydrating the sludge to which the organic coagulant is added,
At least one of the sludge to which the organic coagulant is added and the dehydrated filtrate thereof has a pH of 6 or more, and the evaporation residue (TS) of the concentrated and pressurized dehydrated sludge is 40 to 150 g / L. A treatment device used for dehydration of organic sludge, which is characterized by being present.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018068478A JP6886426B2 (en) | 2018-03-30 | 2018-03-30 | Dehydration method of organic sludge and treatment equipment used for this |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018068478A JP6886426B2 (en) | 2018-03-30 | 2018-03-30 | Dehydration method of organic sludge and treatment equipment used for this |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019177351A JP2019177351A (en) | 2019-10-17 |
| JP2019177351A5 true JP2019177351A5 (en) | 2020-04-30 |
| JP6886426B2 JP6886426B2 (en) | 2021-06-16 |
Family
ID=68277397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018068478A Active JP6886426B2 (en) | 2018-03-30 | 2018-03-30 | Dehydration method of organic sludge and treatment equipment used for this |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6886426B2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223500A (en) * | 1982-06-21 | 1983-12-26 | Ebara Infilco Co Ltd | Treatment of organic sludge |
| US4792406A (en) * | 1988-05-23 | 1988-12-20 | Nalco Chemical Company | Method for dewatering a slurry using a twin belt press with cationic amine salts |
| JPH06343999A (en) * | 1993-06-10 | 1994-12-20 | Kubota Corp | Sludge dewatering method |
| JPH06344000A (en) * | 1993-06-10 | 1994-12-20 | Kubota Corp | Sludge dewatering method |
| JPH10230299A (en) * | 1997-02-21 | 1998-09-02 | Nippon Shokubai Co Ltd | Dehydrating method of sludge |
| JP5882608B2 (en) * | 2011-06-21 | 2016-03-09 | 水ｉｎｇ株式会社 | Method and apparatus for dewatering organic sludge |
| JP2013233509A (en) * | 2012-05-09 | 2013-11-21 | Swing Corp | Method and apparatus of dehydration of organic sludge |
-
2018
- 2018-03-30 JP JP2018068478A patent/JP6886426B2/en active Active
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