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JPS55137084A - Treating method of grout exhaust water - Google Patents

Treating method of grout exhaust water

Info

Publication number
JPS55137084A
JPS55137084A JP4311179A JP4311179A JPS55137084A JP S55137084 A JPS55137084 A JP S55137084A JP 4311179 A JP4311179 A JP 4311179A JP 4311179 A JP4311179 A JP 4311179A JP S55137084 A JPS55137084 A JP S55137084A
Authority
JP
Japan
Prior art keywords
water
treated
exhaust water
sio
silicic acid
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
JP4311179A
Other languages
Japanese (ja)
Other versions
JPS6020074B2 (en
Inventor
Toshiaki Maruyama
Makoto Tsuji
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.)
Nippon Chemical Industrial Co Ltd
Original Assignee
Nippon Chemical Industrial Co 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 Nippon Chemical Industrial Co Ltd filed Critical Nippon Chemical Industrial Co Ltd
Priority to JP4311179A priority Critical patent/JPS6020074B2/en
Publication of JPS55137084A publication Critical patent/JPS55137084A/en
Publication of JPS6020074B2 publication Critical patent/JPS6020074B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

PURPOSE: To treat grout exhaust water using water glass to obtain harmless water simply as well as exonomically by adding a hardly soluble calcium containing substance discharging Ca++ and a flocculating agent.
CONSTITUTION: To total silicic acid component within exhaut water to be treated, a hardly soluble calcium containing substance (slaked lime, baked dolomite or the like) discharging Ca++ is added under a condition of pH above 8.5 so as to adjust CaO/SiO2 (mole ratio) of above 0.5 (pref. 1W4) and, subsequently, a flocculating agent (basic aluminum chloride, polyacrylamide or the like) is added to carry out the flocculating and precipitating treatment. When the pH of exhaust water treated as above described is high, the neutralization treatment can be easily carried out by introducing CO2 gas. By this method, the silicic acid concentration (as SiO2) within treated exhaust water can be easily lowered to below about 50ppm.
COPYRIGHT: (C)1980,JPO&Japio
JP4311179A 1979-04-11 1979-04-11 How to treat grout wastewater Expired JPS6020074B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4311179A JPS6020074B2 (en) 1979-04-11 1979-04-11 How to treat grout wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4311179A JPS6020074B2 (en) 1979-04-11 1979-04-11 How to treat grout wastewater

Publications (2)

Publication Number Publication Date
JPS55137084A true JPS55137084A (en) 1980-10-25
JPS6020074B2 JPS6020074B2 (en) 1985-05-20

Family

ID=12654710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4311179A Expired JPS6020074B2 (en) 1979-04-11 1979-04-11 How to treat grout wastewater

Country Status (1)

Country Link
JP (1) JPS6020074B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140694A (en) * 1981-02-24 1982-08-31 Nippon Chem Ind Co Ltd:The Purification of waste water in construction work
CN103043760A (en) * 2012-12-21 2013-04-17 江门市慧信净水材料有限公司 Polymeric aluminum filter pressing retarder and preparation method thereof
CN104445562A (en) * 2014-11-05 2015-03-25 南华大学 Preparation method of coking wastewater treating agent
CN104803428A (en) * 2015-05-15 2015-07-29 张启磊 Preparation method for coking wastewater treating agent
CN105565547A (en) * 2016-02-01 2016-05-11 浙江大学 Method for treating heavy metal wastewater through organic flocculant
CN106006901A (en) * 2016-07-25 2016-10-12 马鞍山钢铁股份有限公司 Method for reducing total suspended matter concentration of dust removal circulating water

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57140694A (en) * 1981-02-24 1982-08-31 Nippon Chem Ind Co Ltd:The Purification of waste water in construction work
JPS6329599B2 (en) * 1981-02-24 1988-06-14 Nippon Chemical Ind
CN103043760A (en) * 2012-12-21 2013-04-17 江门市慧信净水材料有限公司 Polymeric aluminum filter pressing retarder and preparation method thereof
CN104445562A (en) * 2014-11-05 2015-03-25 南华大学 Preparation method of coking wastewater treating agent
CN104803428A (en) * 2015-05-15 2015-07-29 张启磊 Preparation method for coking wastewater treating agent
CN105565547A (en) * 2016-02-01 2016-05-11 浙江大学 Method for treating heavy metal wastewater through organic flocculant
CN106006901A (en) * 2016-07-25 2016-10-12 马鞍山钢铁股份有限公司 Method for reducing total suspended matter concentration of dust removal circulating water

Also Published As

Publication number Publication date
JPS6020074B2 (en) 1985-05-20

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