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1. 发明专利

JP2003245616A CHEMICAL WASHING METHOD 有权
公开(公告)号：JP2003245616A
公开(公告)日：2003-09-02
申请号：JP2002046537
申请日：2002-02-22
申请人： TOKYO ELECTRIC POWER CO , KURITA ENG CO LTD
发明人： AKUTSU NOBUO , UMEDA YOKO , TSUCHIDA MAKOTO , YOSHIKAWA TADAYOSHI , KIYOTAKI KAZUHIRO , KAWAGUCHI HIROTOMI , TAKESHITA MASANORI
IPC分类号： B08B3/08 , B01D61/02 , B01D61/58 , C02F1/04 , C02F1/42 , C02F1/44 , C02F1/469 , C02F5/00 , C02F5/10 , C23G1/08 , C23G1/36 , F22B37/52
摘要： PROBLEM TO BE SOLVED: To recover and reutilize an organic acid by efficiently treating an organic acid-containing washing waste liquid generated when a boiler or the like is chemically washed with a washing liquid containing the organic acid as a main component. SOLUTION: The washing liquid containing the organic acid as the main component is passed through the boiler 1 to wash the boiler. The washing waste liquid is brought into contact with an H-type cation exchange resin 5 not only to remove metal ions eluted by the organic acid but also to convert a metal salt of the organic acid to the organic acid to regenerate the discharged washing liquid. The regenerated washing liquid is circulated to be used in washing. After the washing liquid is circulated to be used, the regenerated washing liquid is concentrated to recover the highly concentrated organic acid. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2000296384A TREATMENT OF WASTE CONTAINING FISH AND SHELLFISH 失效
公开(公告)号：JP2000296384A
公开(公告)日：2000-10-24
申请号：JP10498299
申请日：1999-04-13
申请人： TOKYO ELECTRIC POWER CO , NIPPON KOKAN KK
发明人： OTA HIROMITSU , TSUCHIDA MAKOTO , TAKECHI TATSUO , ENDO SHINICHI
IPC分类号： B09B3/00 , C02F11/02
摘要： PROBLEM TO BE SOLVED: To reduce generation of any malodor in the treatment process, to form a comparatively clean residue containing bones, shells, etc., and to promote effective utilization and distribution of the residue by bringing the waste into contact with a sludge mixed liquid containing activated sludge under aerobic conditions, in a treatment process of waste containing fish and shellfish. SOLUTION: The equipment for this treatment process has a treatment vessel 3 which is divided into an upper space and a lower space by a grid tray 4 and provided with a basket 2 that is placed on the grid tray 4 in the upper space and contains waste 1 received within, and an air diffuser 6 placed in the lower space. This treatment process comprises: placing a sludge mixed liquid containing activated sludge in the treatment vessel 3; supplying oxygen required for subjecting organic matter contained in the waste 1 to oxidative decomposition by the action of external respiration of microorganisms in the sludge mixed liquid and also for internal respiration of the microorganisms themselves having activated sludge action; and concurrently, performing agitation/mixing in the treatment vessel 3 by utilizing a flow within the treatment vessel 3, which is formed with the rise of air bubbles, to promote the contact of the waste 1 with the sludge mixed liquid having activated sludge action.

3. 发明专利

JP2000296385A EQUIPMENT FOR TREATMENT OF WASTE CONTAINING FISH AND SHELLFISH 失效
公开(公告)号：JP2000296385A
公开(公告)日：2000-10-24
申请号：JP10498399
申请日：1999-04-13
申请人： TOKYO ELECTRIC POWER CO , NIPPON KOKAN KK
发明人： OTA HIROMITSU , TSUCHIDA MAKOTO , TAKECHI TATSUO , ENDO SHINICHI
IPC分类号： B09B3/00 , C02F3/12
摘要： PROBLEM TO BE SOLVED: To reduce generation of any malodor in the treatment process, to form a comparatively clean residue containing bones, shells, etc., and to promote effective utilization and distribution of the residue by immersing a liquid-permeable vessel where the waste containing fish and shellfish is put, in a sludge mixed liquid containing activated sludge. SOLUTION: This equipment for the treatment process has a treatment vessel 3 which is divided into an upper space and a lower space by a grid tray 4 and provided with a basket 2 (liquid-permeable vessel) that is placed on the grid tray 4 in the upper space and contains waste 1 received within, and an air diffuser 6 placed in the lower space. This treatment process comprises: placing a sludge mixed liquid containing activated sludge in the treatment vessel 3; supplying oxygen required or subjecting organic matter contained in the waste 1 to oxidative decomposition by the action of external respiration of microorganisms in the sludge mixed liquid and also for internal respiration of the microorganisms themselves having activated sludge action; and concurrently, performing agitation/mixing in the treatment vessel 3 by utilizing a flow within the treatment vessel 3, which is formed with the rise of air bubbles, to promote the contact of the waste 1 with the sludge mixed liquid having activated sludge action Further, in the treatment vessel 3, a baffle wall 13 is placed so that an oxygen-containing gas is concentrated at the liquid-permeable bottom of the liquid- permeable vessel (basket 2).

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