JPS5633012A - Washing method for filter medium of filtration apparatus and its apparatus - Google Patents

Washing method for filter medium of filtration apparatus and its apparatus

Info

Publication number
JPS5633012A
JPS5633012A JP10886979A JP10886979A JPS5633012A JP S5633012 A JPS5633012 A JP S5633012A JP 10886979 A JP10886979 A JP 10886979A JP 10886979 A JP10886979 A JP 10886979A JP S5633012 A JPS5633012 A JP S5633012A
Authority
JP
Japan
Prior art keywords
bed
filter medium
vessel
room
filtered
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.)
Granted
Application number
JP10886979A
Other languages
Japanese (ja)
Other versions
JPS6329570B2 (en
Inventor
Katsunobu Takenaka
Akaru Furusato
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.)
OOSAKASHI
Osaka City Government
Nishihara Environment Co Ltd
Original Assignee
OOSAKASHI
Nishihara Environmental Sanitation Research Corp
Osaka City Government
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 OOSAKASHI, Nishihara Environmental Sanitation Research Corp, Osaka City Government filed Critical OOSAKASHI
Priority to JP10886979A priority Critical patent/JPS5633012A/en
Publication of JPS5633012A publication Critical patent/JPS5633012A/en
Publication of JPS6329570B2 publication Critical patent/JPS6329570B2/ja
Granted legal-status Critical Current

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  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To accurately and continuously detect the height of the surface of filter medium bed and to automatically control the quantity of counter washing water based on said detected value, by providing with the ultrasonic waves reflection type level gauge having the sensor part on the upper part of filter material bed, on occasion of washing the filter medium counter.
CONSTITUTION: Feed water to be filtered is supplied to the filter vessel 1 and is filtered by passing through the first filter medium bed 2 and second filter medium bed 3 successively. Then, filtered water is entered the room 4 and is taken out as clean water. One end of the washing water supply pipe 5, is opened in the room 4 and the washing water is flowed backward from the room 4 through the beds 2, 3 and then, is flowed out from the upper end of the vessel 1 after raising up in the vessel 1. Oscillation of ultrasonic waves having a fixed frequency, is sent from outgoing part provided with the sensor part 7 toward the surface of the bed 2 by the level gauge and the ultrasonic waves reflected on said surface, is received by the reception part provided with the part 7 also and then the surface height of the bed 2 is detected from the necessary time from the outgoing to the reception.
COPYRIGHT: (C)1981,JPO&Japio
JP10886979A 1979-08-27 1979-08-27 Washing method for filter medium of filtration apparatus and its apparatus Granted JPS5633012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10886979A JPS5633012A (en) 1979-08-27 1979-08-27 Washing method for filter medium of filtration apparatus and its apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10886979A JPS5633012A (en) 1979-08-27 1979-08-27 Washing method for filter medium of filtration apparatus and its apparatus

Publications (2)

Publication Number Publication Date
JPS5633012A true JPS5633012A (en) 1981-04-03
JPS6329570B2 JPS6329570B2 (en) 1988-06-14

Family

ID=14495641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10886979A Granted JPS5633012A (en) 1979-08-27 1979-08-27 Washing method for filter medium of filtration apparatus and its apparatus

Country Status (1)

Country Link
JP (1) JPS5633012A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001120917A (en) * 1999-10-26 2001-05-08 Tokyo Metropolis Backwashing method of rapid filtration pond
KR100606602B1 (en) 2004-04-22 2006-08-01 주식회사하이워텍엔지니어링 Filter backwashing method and backwashing method using ultrasonic vibration
JP2014097500A (en) * 2009-10-26 2014-05-29 Miraclewater Co Ltd High speed filtration treatment device using porous filter media, and backwash method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001120917A (en) * 1999-10-26 2001-05-08 Tokyo Metropolis Backwashing method of rapid filtration pond
KR100606602B1 (en) 2004-04-22 2006-08-01 주식회사하이워텍엔지니어링 Filter backwashing method and backwashing method using ultrasonic vibration
JP2014097500A (en) * 2009-10-26 2014-05-29 Miraclewater Co Ltd High speed filtration treatment device using porous filter media, and backwash method thereof

Also Published As

Publication number Publication date
JPS6329570B2 (en) 1988-06-14

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