JPS57209698A - Apparatus for dewatering and fermenting organic sludge - Google Patents

Apparatus for dewatering and fermenting organic sludge

Info

Publication number
JPS57209698A
JPS57209698A JP56095821A JP9582181A JPS57209698A JP S57209698 A JPS57209698 A JP S57209698A JP 56095821 A JP56095821 A JP 56095821A JP 9582181 A JP9582181 A JP 9582181A JP S57209698 A JPS57209698 A JP S57209698A
Authority
JP
Japan
Prior art keywords
acid
sludge
washing
dewatering
freeze
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
JP56095821A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Morikawa
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 JP56095821A priority Critical patent/JPS57209698A/en
Publication of JPS57209698A publication Critical patent/JPS57209698A/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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Landscapes

  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

PURPOSE: To facilitate the maintenance and management of an acid-washing part, while eliminating the outflow of a waste acid-washing liquid, by arranging a pH- adjusting and dewatering part to add an acid to sludge to be treated and to dewater the sludge, an aerobic fermenting part for the dewatered sludge and an acid-washing part for fermentation gas.
CONSTITUTION: Concentrated sludge is fed through a feed line 1 into a pH- adjusting part 2, where an acid from an acidifying part 15 is fed to the sludge until a value indicated by a pH sensor 21 reaches a fixed level. The pH-adjusted sludge is freeze-thawed at a freeze-thawing part 7, dewatered by a dehydrator 9 and then converted into compost by a fermenting part 11. Exhaust gas generated by the fermentation is introduced into an acid-washing part 15, let flow through a circulating conduit 18, brought into counter-current contact with an acid atomized from an upper nozzle to remove alkaline gaseous components such as ammonia, and then discharged as purified gas from the acid-washing part 15.
COPYRIGHT: (C)1982,JPO&Japio
JP56095821A 1981-06-19 1981-06-19 Apparatus for dewatering and fermenting organic sludge Pending JPS57209698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56095821A JPS57209698A (en) 1981-06-19 1981-06-19 Apparatus for dewatering and fermenting organic sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56095821A JPS57209698A (en) 1981-06-19 1981-06-19 Apparatus for dewatering and fermenting organic sludge

Publications (1)

Publication Number Publication Date
JPS57209698A true JPS57209698A (en) 1982-12-23

Family

ID=14148069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56095821A Pending JPS57209698A (en) 1981-06-19 1981-06-19 Apparatus for dewatering and fermenting organic sludge

Country Status (1)

Country Link
JP (1) JPS57209698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100508857B1 (en) * 2003-06-30 2005-08-17 재단법인 포항산업과학연구원 System for removing ammonia in waste water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100508857B1 (en) * 2003-06-30 2005-08-17 재단법인 포항산업과학연구원 System for removing ammonia in waste water

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