JPS5534148A - Dehydration treating method of waste water containing organic matter - Google Patents
Dehydration treating method of waste water containing organic matterInfo
- Publication number
- JPS5534148A JPS5534148A JP10710778A JP10710778A JPS5534148A JP S5534148 A JPS5534148 A JP S5534148A JP 10710778 A JP10710778 A JP 10710778A JP 10710778 A JP10710778 A JP 10710778A JP S5534148 A JPS5534148 A JP S5534148A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- waste water
- digestion
- organic matter
- containing organic
- 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.)
- Pending
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To decrease the amount of addition of coagulant and reduce the size of the dehydrating device by mixing the separating liquid after the digestion treatment and dehydration of the waste water containing organic matter and the excess sludge of aerobic treatment and dehydrating the mixture after freeze-thaw treatment.
CONSTITUTION: In waste water treatment of the waste water containing organic matter such as human waste, etc., the digestion sludge from a digesting tank 3 is led to a centrifugal dehydrator 15, where it is dehydrated to dehydrated digestion sludge 17. The separating liquid of this time is sent to a sluge mixing tank 9, where it is mixed with the excess sludge from a precipitating tank 7 and is then transferred into a reaction tank 10. Here, inorganic salt coagulant 11 is added to cause coagulation and reaction, after which the sludge is dehudrated in a freeze-thaw type sludge dehydrating unit 16. Since the digestion sludge is dehydrated in this way, the amount of addition of coagulant can be 3 to 5% of the solids of unrecovered digestion sludge and excess sludge. Since the amount of the sludge to be treated decreases, the dehydration device may be made smaller in size.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10710778A JPS5534148A (en) | 1978-08-31 | 1978-08-31 | Dehydration treating method of waste water containing organic matter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10710778A JPS5534148A (en) | 1978-08-31 | 1978-08-31 | Dehydration treating method of waste water containing organic matter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5534148A true JPS5534148A (en) | 1980-03-10 |
Family
ID=14450635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10710778A Pending JPS5534148A (en) | 1978-08-31 | 1978-08-31 | Dehydration treating method of waste water containing organic matter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5534148A (en) |
-
1978
- 1978-08-31 JP JP10710778A patent/JPS5534148A/en active Pending
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