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1. 发明专利

JP2000262817A WASTEWATER TREATMENT APPARATUS 失效
公开(公告)号：JP2000262817A
公开(公告)日：2000-09-26
申请号：JP7418799
申请日：1999-03-18
申请人： TOKYO METROPOLITAN GOV , NIPPON KOKAN KK
发明人： SHIMIZU YOJI , KONO KINICHIRO , SUZUKI KIYOSHI , SAKAI ITARU , MIZUNO KENICHIRO , OKUYAMA TAKASHI , ISHII ARIMITSU
IPC分类号： B01D33/04
摘要： PROBLEM TO BE SOLVED: To efficiently carry out solid-liquid separation and concentration treatment of a large quantity of sludge generated in wastewater treatment facilities independently of the properties the sludge. SOLUTION: This wastewater treatment apparatus is provided with a wastewater chamber 8 having a wastewater supply port 9 and a concentrated wastewater discharge port, a filtered water chamber 11 having a filtered water discharge port 12, a filtration. means 15 for filtering the wastewater supplied to the wastewater chamber 8, and a filter cloth washing means 18. The filtration means 15 is provided with a filter cloth 18 circularly and endlessly turned in the vertical direction and immersed in the wastewater in the wastewater chamber 8 in the lower part: the filter cloth 18 runs while covering the opening part 14: and the washing means is installed above the liquid surface in the ascending side of the filter cloth 18 in the wastewater chamber 8. In the wastewater treatment apparatus with such a structure, the wastewater supply port 9 is formed in the wastewater side wall in the descending side of the filter cloth and the concentrated wastewater discharge port is formed in the wastewater side wall in the ascending side of the filter cloth of the wastewater chamber 8 and a solid matter releasing means for removing the solid matter adhering to the filter cloth 18 is installed in the lower part of the washing means.

2. 发明专利

JPH11216312A WASTE LIQUID TREATMENT APPARATUS 失效
公开(公告)号：JPH11216312A
公开(公告)日：1999-08-10
申请号：JP2000898
申请日：1998-01-30
申请人： NIPPON KOKAN KK
发明人： NOGUCHI HIROSHI , SHIMIZU YOJI , SAKAI ITARU , TAKECHI TATSUO , SHOJI SHUNKICHI , OKUYAMA TAKASHI , SHINOHARA JUNJI
IPC分类号： B01D33/04 , C02F11/12
摘要： PROBLEM TO BE SOLVED: To efficiently carry out solid-liquid separation and concentrate a large quantity of waste liquid at a sewage treatment site independently of the properties of the waste liquid. SOLUTION: This waste liquid treatment apparatus comprises a waste liquid chamber 8 having a waste liquid supply inlet 9 and a concentrated waste liquid discharge outlet 10, a filtered liquid chamber 11 having a filtered liquid discharge outlet 12, a filtration means 15 having a filter cloth 18 for filtering the waste liquid supplied to the waste liquid chamber 8, a sludge adhesion amount detecting means 20 for detecting the amount of sludge adhering to the filter cloth 18, a speed control means 21 for controlling the running speed of the filter cloth 18 corresponding to the amount of the sludge adhering to the filter cloth 18 detected by the sludge adhesion amount detecting means 20, and a washing means 19 for washing the filter cloth 18. The waste liquid chamber 8 and the filtered liquid chamber 11 are installed adjacently to each other and at least one projected part 13 projected into the inside of the waste liquid chamber 8 i formed in the filtered liquid chamber 11 and an open part 14 communicated with the waste liquid chamber 8 is formed in the projected part 13 and the filter cloth 18 is running while covering the open part 14.

3. 发明专利

JP2000005506A WASTE LIQUID TREATING DEVICE HAVING FLOCCULANT ADDING MEANS 失效
公开(公告)号：JP2000005506A
公开(公告)日：2000-01-11
申请号：JP17309598
申请日：1998-06-19
申请人： SHIMIZU YOJI , NIPPON KOKAN KK
发明人： SHIMIZU YOJI , NOGUCHI HIROSHI , SAKAI ITARU , OKUYAMA TAKASHI , SHINOHARA JUNJI
IPC分类号： B01D21/02 , B01D21/01 , B01D29/09 , B01D33/04
摘要： PROBLEM TO BE SOLVED: To efficiently separate solid from liq. and to concentrate the sludge generated in a sewage disposal plant regardless of the properties of the sludge. SOLUTION: This device consists of a waste liq. chamber 8 having a waste liq. inlet 9 and a concd. waste liq. outlet 10, a filtrate chamber 11 having a filtrate outlet 12, a filter means 15 provided in the waste liq. chamber 8 and having a filter cloth 18 for filtering the waste liq. supplied to the waste liq. chamber 8 and a cleaning means 19 for cleaning the filter cloth 18. At least one protrusion 13 protruding into the waste liq. chamber 8 is formed in the waste liq. chamber 8, an opening 14 communicating with the waste liq. chamber 8 is furnished to the protrusion 13, and the filter cloth 18 travels while covering the opening 14. In this waste liq. treating device, a flocculant adding means 20 is provided to add a flocculant to the waste liq. supplied in the waste liq. chamber 8.

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