JPS6438195A - Treatment of waste water - Google Patents

Treatment of waste water

Info

Publication number
JPS6438195A
JPS6438195A JP19486687A JP19486687A JPS6438195A JP S6438195 A JPS6438195 A JP S6438195A JP 19486687 A JP19486687 A JP 19486687A JP 19486687 A JP19486687 A JP 19486687A JP S6438195 A JPS6438195 A JP S6438195A
Authority
JP
Japan
Prior art keywords
raw water
compd
waste water
inorg
flocculant
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
JP19486687A
Other languages
Japanese (ja)
Inventor
Tadashi Takadoi
Isamu Kato
Masaaki Shishido
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.)
Kurita Water Industries Ltd
Original Assignee
Kurita Water Industries 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 Kurita Water Industries Ltd filed Critical Kurita Water Industries Ltd
Priority to JP19486687A priority Critical patent/JPS6438195A/en
Publication of JPS6438195A publication Critical patent/JPS6438195A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To effectively adsorb mercury and fluoride ions in raw water by adding a heavy metal fixing agent and an inorg. flocculant to the raw water containing mercury and fluoride ion, adjusting the pH to about 7, carrying out solid-liq. separation and returning the separated suspended solids to raw water. CONSTITUTION:A heavy metal fixing agent and an inorg. flocculant are added to raw water contg. mercury and fluoride ions, e.g., waste water from a garbage incinerating plant, waste water from a stage for producing fluorescent lamps or cathode-ray tubes or waste water from a laboratory. After the pH of the raw water is adjusted to about 7, solid-liq. separation is carried out and the separated suspended solids are returned to raw water. The heavy metal fixing agent may be a compd. contg. S<2-> such as sodium sulfide or sodium hydrosulfide or a compd. forming a chelate with N and S atoms such as thiourea. The inorg. flocculant may be an iron compd. such as ferric chloride or an aluminum compd. such as aluminum sulfate.
JP19486687A 1987-08-04 1987-08-04 Treatment of waste water Pending JPS6438195A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19486687A JPS6438195A (en) 1987-08-04 1987-08-04 Treatment of waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19486687A JPS6438195A (en) 1987-08-04 1987-08-04 Treatment of waste water

Publications (1)

Publication Number Publication Date
JPS6438195A true JPS6438195A (en) 1989-02-08

Family

ID=16331604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19486687A Pending JPS6438195A (en) 1987-08-04 1987-08-04 Treatment of waste water

Country Status (1)

Country Link
JP (1) JPS6438195A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193374A (en) * 1997-11-06 1999-07-21 Miyoshi Oil & Fat Co Ltd Metal scavenger
US20150041406A1 (en) * 2013-08-12 2015-02-12 Ecolab Usa Inc. Method of tracing chemical quantities using encapsulated fluorescent dyes
WO2016203865A1 (en) * 2015-06-18 2016-12-22 三菱日立パワーシステムズ株式会社 Coal-fired boiler exhaust gas treatment apparatus and coal-fired boiler exhaust gas treatment method
JP2017167049A (en) * 2016-03-17 2017-09-21 Ｊｘ金属株式会社 System and method for automatically and concurrently measuring concentration of fluoride ion and mercury in water
CN110902889A (en) * 2019-12-09 2020-03-24 吉林省电力科学研究院有限公司 Treatment method of mercury-containing wastewater

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11193374A (en) * 1997-11-06 1999-07-21 Miyoshi Oil & Fat Co Ltd Metal scavenger
US20150041406A1 (en) * 2013-08-12 2015-02-12 Ecolab Usa Inc. Method of tracing chemical quantities using encapsulated fluorescent dyes
US10139385B2 (en) * 2013-08-12 2018-11-27 Ecolab Usa Inc. Method of tracing chemical quantities using encapsulated fluorescent dyes
WO2016203865A1 (en) * 2015-06-18 2016-12-22 三菱日立パワーシステムズ株式会社 Coal-fired boiler exhaust gas treatment apparatus and coal-fired boiler exhaust gas treatment method
US10247414B2 (en) 2015-06-18 2019-04-02 Mitsubishi Hitachi Power Systems, Ltd. Coal-fired boiler exhaust gas treatment apparatus and coal-fired boiler exhaust gas treatment method
JP2017167049A (en) * 2016-03-17 2017-09-21 Ｊｘ金属株式会社 System and method for automatically and concurrently measuring concentration of fluoride ion and mercury in water
CN110902889A (en) * 2019-12-09 2020-03-24 吉林省电力科学研究院有限公司 Treatment method of mercury-containing wastewater

Similar Documents

Publication Publication Date Title
DE3275537D1 (en) Treatment of industrial wastewater
SE7903598L (en) PROCEDURE FOR THE EXPOSURE OF HEAVY METALS FROM THE WASTEWATER
GR1001977B (en) Process for chemical stabilisation of heavy metal bearing dusts and sludges such as eaf dust
ES452209A1 (en) Solid-liquid separation method for organic waste sludge
JPS6438195A (en) Treatment of waste water
DE3460694D1 (en) Process for the preparation of previtamin d and photosensitizers
RO93593A (en) PROCESS FOR THE PREPARATION OF 6-ALPHA-METHYLCORTICOIDES
ES8506062A1 (en) Process for the detoxification treatment of hazardous wastes.
MY108219A (en) Process for the microbial oxidation of sulphidic wastes
ES8607604A1 (en) Process for treating uraniferous solutions by the addition of an aluminum salt
ES8503033A1 (en) Process for treating liquid chlorinated hydrocarbon wastes containing iron.
EP0263424A3 (en) Process for removing arsenic from waste water containing arsenic
JPS60241988A (en) Treatment of waste water containing fluorine
JPS5561925A (en) Scrubbing treatment of exhaust gas containing heavy metal
AU633585B2 (en) Water treatment process
JPS5399656A (en) Method of purifying suspended waste water
JPS57145009A (en) Preparation of sulfied by sulfate reducing microorganism
SU1747394A1 (en) Method for purification sulfide containing sewage
GB516706A (en) Improvements in and relating to the flocculation of sewage suspensions and sludges
ES468435A1 (en) Procedure for the precipitation and separation of the arsenic of solutions that contain copper (Machine-translation by Google Translate, not legally binding)
KR970042301A (en) How to remove the thiocyanate compound in the condensate of coke oven gas
NO159247C (en) FLOTATION PROCESS FOR SEPARATION OF MIXTURES OF BASIC METAL MINERALS.
SE8704090D0 (en) SET TO MAKE ALKALIMETAL CHLORATE
JPS55139400A (en) Separation of sodium guanylate
JPS52152655A (en) Process for treating waste water containing heavy metals