JPS577299A - Sludge disposal - Google Patents

Sludge disposal

Info

Publication number
JPS577299A
JPS577299A JP8072480A JP8072480A JPS577299A JP S577299 A JPS577299 A JP S577299A JP 8072480 A JP8072480 A JP 8072480A JP 8072480 A JP8072480 A JP 8072480A JP S577299 A JPS577299 A JP S577299A
Authority
JP
Japan
Prior art keywords
sludge
vessel
mixed crude
treated water
digested
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
JP8072480A
Other languages
Japanese (ja)
Inventor
Akira Sueda
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 Kakoki Kaisha Ltd
Original Assignee
Mitsubishi Kakoki Kaisha Ltd
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 Kakoki Kaisha Ltd filed Critical Mitsubishi Kakoki Kaisha Ltd
Priority to JP8072480A priority Critical patent/JPS577299A/en
Publication of JPS577299A publication Critical patent/JPS577299A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

PURPOSE: To enhance the effect of treatment with an inorganic flocculant, by preparatively adding 3W15%-DS of slaked lime to mixed crude sludge or digested sludge in a concentrating vessel or a washing vessel and then diluting the sludge with secondary treated water.
CONSTITUTION: Mixed crude sludge or digested sludge generated in a sewage disposal plant is introduced into a concentrating vessel or a washing vessel, where 3W 15%-DS of slaked lime is added to the sludge and the sludge is diluted with secondary treated water. Thereafter, to the treated mixed crude sludge or digested sludge is added an inorganic flocculant, and the sludge is subjected to coagulation. Consequently, the precipitating speed of the sludge is accelerated, while inhibiting the floatation of the sludge in the concentrating vessel and the concomitant division of a content in the concentrated sludge vessel into three layers, when the mixed crude sludge is dewatered. The dilution with the secondary treated water is done at a rate of 50vol% or more, preferably 100vol% or so, by volume of sludge water to be disposed, for instance.
COPYRIGHT: (C)1982,JPO&Japio
JP8072480A 1980-06-14 1980-06-14 Sludge disposal Pending JPS577299A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8072480A JPS577299A (en) 1980-06-14 1980-06-14 Sludge disposal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8072480A JPS577299A (en) 1980-06-14 1980-06-14 Sludge disposal

Publications (1)

Publication Number Publication Date
JPS577299A true JPS577299A (en) 1982-01-14

Family

ID=13726304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8072480A Pending JPS577299A (en) 1980-06-14 1980-06-14 Sludge disposal

Country Status (1)

Country Link
JP (1) JPS577299A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154866U (en) * 1982-04-12 1983-10-17 重茂　勇雄 Improved internal combustion engine injection system
JP2017176904A (en) * 2016-03-28 2017-10-05 株式会社北▲りょう▼ Sludge dewatering method and dewatering apparatus for sludge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154866U (en) * 1982-04-12 1983-10-17 重茂　勇雄 Improved internal combustion engine injection system
JP2017176904A (en) * 2016-03-28 2017-10-05 株式会社北▲りょう▼ Sludge dewatering method and dewatering apparatus for sludge

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