JPS5460754A - Process for treating waste water - Google Patents

Process for treating waste water

Info

Publication number
JPS5460754A
JPS5460754A JP12570577A JP12570577A JPS5460754A JP S5460754 A JPS5460754 A JP S5460754A JP 12570577 A JP12570577 A JP 12570577A JP 12570577 A JP12570577 A JP 12570577A JP S5460754 A JPS5460754 A JP S5460754A
Authority
JP
Japan
Prior art keywords
sands
waste water
sludges
treatment
water containing
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
JP12570577A
Other languages
Japanese (ja)
Inventor
Kuniaki Hashimoto
Yoshihiro Yokota
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP12570577A priority Critical patent/JPS5460754A/en
Publication of JPS5460754A publication Critical patent/JPS5460754A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To provide the subject process comprising passing waste water through a screening device to remove sieving residues, and thereafter passing the same through a liquid cyclone to remove sands and the like, thereby to reduce the load in the treatment steps, to simplify the device and reduce the treatment cost.
CONSTITUTION: Waste water containing sieve residues, sands, sludges and the like is passed through a screen device 8 in which a large number of sheet-like discs are arranged slidably at intervals of several millimeters or a large number of sheets are inclined and arranged thereby to remove relatively coarse dusts. The thus removed sieving residues are washed, and thereafter dehydrated and subjected to burning treatment. Then, the waste water containing sands, sludges and the like is led to the inlet 9a of the liquid cyclone 9, and sands having large specific gravities are exhausted out of the lower outlet 9c while turning within the cyclone. The waste water containing sludges is subjected to ordinary treatment. Sands removed from the liquid cyclone 9 are treated by a sand washing device or the like.
COPYRIGHT: (C)1979,JPO&Japio
JP12570577A 1977-10-21 1977-10-21 Process for treating waste water Pending JPS5460754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12570577A JPS5460754A (en) 1977-10-21 1977-10-21 Process for treating waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12570577A JPS5460754A (en) 1977-10-21 1977-10-21 Process for treating waste water

Publications (1)

Publication Number Publication Date
JPS5460754A true JPS5460754A (en) 1979-05-16

Family

ID=14916677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12570577A Pending JPS5460754A (en) 1977-10-21 1977-10-21 Process for treating waste water

Country Status (1)

Country Link
JP (1) JPS5460754A (en)

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