JPS5534148A - Dehydration treating method of waste water containing organic matter - Google Patents

Dehydration treating method of waste water containing organic matter

Info

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
Application number
JP10710778A
Other languages
Japanese (ja)
Inventor
Toshiichi Honda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10710778A priority Critical patent/JPS5534148A/en
Publication of JPS5534148A publication Critical patent/JPS5534148A/en
Pending legal-status Critical Current

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  • 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
JP10710778A 1978-08-31 1978-08-31 Dehydration treating method of waste water containing organic matter Pending JPS5534148A (en)

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)

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