JPS5712879A - Dumping of waste water into sea - Google Patents

Dumping of waste water into sea

Info

Publication number
JPS5712879A
JPS5712879A JP8717180A JP8717180A JPS5712879A JP S5712879 A JPS5712879 A JP S5712879A JP 8717180 A JP8717180 A JP 8717180A JP 8717180 A JP8717180 A JP 8717180A JP S5712879 A JPS5712879 A JP S5712879A
Authority
JP
Japan
Prior art keywords
sea
waste water
water
waste
dumped
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
JP8717180A
Other languages
Japanese (ja)
Inventor
Harutaka Oota
Kazuchiyo Miyamoto
Kotaro Terayama
Yoshinobu Kawashima
Yoshinobu Ito
Shigeru Gouto
Terufusa Fujino
Hidetoshi Amamoto
Yasuichi Sonobe
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP8717180A priority Critical patent/JPS5712879A/en
Publication of JPS5712879A publication Critical patent/JPS5712879A/en
Pending legal-status Critical Current

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  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)

Abstract

PURPOSE: To dump waste water into the sea without pollution of the sea surface, by lowering the temperature of the waste water, than that of the sea water before the waste water is dumped into the sea.
CONSTITUTION: When waste water, e.g. waste water during dredging, waste water from a factory, etc., is dumped into the sea, the waste water in a waste water tank 1 is pumped up by a pump 3, carried through a line pipe 2 into a cooler 4, where the waste water is cooled to a predetermined temperature, i.e. a temperature lower than that of the sea water into which the waste water is drained, and then drained through a drain pipe 5 into the sea water. Because of this treatment, the cooled waste water, which has a larger density than that of the circumferential sea water, does not disperse into the sea water freely, but sinks until its density becomes equal to that of the sea water. Consequently, the sea surface is not polluted.
COPYRIGHT: (C)1982,JPO&Japio
JP8717180A 1980-06-26 1980-06-26 Dumping of waste water into sea Pending JPS5712879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8717180A JPS5712879A (en) 1980-06-26 1980-06-26 Dumping of waste water into sea

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8717180A JPS5712879A (en) 1980-06-26 1980-06-26 Dumping of waste water into sea

Publications (1)

Publication Number Publication Date
JPS5712879A true JPS5712879A (en) 1982-01-22

Family

ID=13907535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8717180A Pending JPS5712879A (en) 1980-06-26 1980-06-26 Dumping of waste water into sea

Country Status (1)

Country Link
JP (1) JPS5712879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013142253A (en) * 2012-01-11 2013-07-22 Toyo Constr Co Ltd Dredging device and dredging method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013142253A (en) * 2012-01-11 2013-07-22 Toyo Constr Co Ltd Dredging device and dredging method

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