JPS5765384A - Neutralization of alkaline waste water - Google Patents
Neutralization of alkaline waste waterInfo
- Publication number
- JPS5765384A JPS5765384A JP14034580A JP14034580A JPS5765384A JP S5765384 A JPS5765384 A JP S5765384A JP 14034580 A JP14034580 A JP 14034580A JP 14034580 A JP14034580 A JP 14034580A JP S5765384 A JPS5765384 A JP S5765384A
- Authority
- JP
- Japan
- Prior art keywords
- water
- waste water
- gas
- value
- drain pipe
- 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
Links
Abstract
PURPOSE: To efficiently neutralize alkaline waste water at a low cost, when the alkaline waste water is neutralized with acidic gas, by adding a proper amount of the acidic gas to the waste water under a presuirzed condition in a drain pipe, while measuring the pH value of the waste water, and then sufficiently mixing the waste water with the acidic gas.
CONSTITUTION: Alkaline waste liquid, e.g. waste concrete liquid, is forcedly fed into a drain pipe 1 by a pump P. The pH value of the waste liquid is detected by a pH detector 5 arranged on the way of the drain pipe 1, the detected value is fed into a pH indicating and regulating device 7 and a pH controller 8 to operate electromagnetic valves 4 arranged in CO2 gas-feed pipes 3 from a liquiefied carbonic acid gas bomb 2, and CO2 gas necessary for neutralization is added to the alkaline waste water in the drain pipe 1. The CO2 gas is rapidly reacted with the alkaline waster water in the drain pipe 1 under a pressurized condition to form water-soluble Ca(HCO3)2 without generation of water-insoluble CaCO3, and the water is neutralized. Thereafter, the water is sufficiently mixed and racted with a paddle mixer 15, and its pH value is detected with a pH detector 6 again. By the detected value are controlled the electromagnetic valves 4 of the CO2 gas-feed pipes 3, to readjust the pH value of the waste water before flowing into the mixer 15.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14034580A JPS5765384A (en) | 1980-10-06 | 1980-10-06 | Neutralization of alkaline waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14034580A JPS5765384A (en) | 1980-10-06 | 1980-10-06 | Neutralization of alkaline waste water |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5210883A Division JPS58174287A (en) | 1983-03-28 | 1983-03-28 | Neutralyzing device for waste alkali water |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5765384A true JPS5765384A (en) | 1982-04-20 |
Family
ID=15266661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14034580A Pending JPS5765384A (en) | 1980-10-06 | 1980-10-06 | Neutralization of alkaline waste water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5765384A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100350688B1 (en) * | 1999-10-30 | 2002-08-30 | 현대건설주식회사 | Cement waste water treatment system |
JP2003136073A (en) * | 2001-11-01 | 2003-05-13 | Miura Co Ltd | Neutralizing method and neutralizing apparatus |
JP2014036950A (en) * | 2013-04-25 | 2014-02-27 | Ihi Corp | Neutralization device and neutralization method |
JP2014213479A (en) * | 2013-04-23 | 2014-11-17 | 大阪生コン物流事業協同組合 | Water for concrete production, and method for producing the same |
WO2018111855A1 (en) * | 2016-12-14 | 2018-06-21 | Mackrodt Basil | Wastewater treatment system and method |
JP2019195766A (en) * | 2018-05-09 | 2019-11-14 | 株式会社アクティオ | Neutralization treatment device and neutralization treatment method for construction waste water |
CN113651454A (en) * | 2021-08-26 | 2021-11-16 | 宁夏赛福质量检测技术有限公司 | Waste acid liquid collecting and processing device for agricultural product quality safety detection laboratory |
-
1980
- 1980-10-06 JP JP14034580A patent/JPS5765384A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100350688B1 (en) * | 1999-10-30 | 2002-08-30 | 현대건설주식회사 | Cement waste water treatment system |
JP2003136073A (en) * | 2001-11-01 | 2003-05-13 | Miura Co Ltd | Neutralizing method and neutralizing apparatus |
JP2014213479A (en) * | 2013-04-23 | 2014-11-17 | 大阪生コン物流事業協同組合 | Water for concrete production, and method for producing the same |
JP2014036950A (en) * | 2013-04-25 | 2014-02-27 | Ihi Corp | Neutralization device and neutralization method |
WO2018111855A1 (en) * | 2016-12-14 | 2018-06-21 | Mackrodt Basil | Wastewater treatment system and method |
JP2019195766A (en) * | 2018-05-09 | 2019-11-14 | 株式会社アクティオ | Neutralization treatment device and neutralization treatment method for construction waste water |
CN113651454A (en) * | 2021-08-26 | 2021-11-16 | 宁夏赛福质量检测技术有限公司 | Waste acid liquid collecting and processing device for agricultural product quality safety detection laboratory |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5863422A (en) | Apparatus for carbon dioxide pretreatment and accelerated limestone dissolution for treatment of acidified water | |
JPS5765384A (en) | Neutralization of alkaline waste water | |
YU10399A (en) | Hydromechanical mixing apparatus for producing mixture of powder or granular material and liquid | |
ATE254582T1 (en) | DEVICE FOR DOSING GRANULAR OR POWDERY ADDITIVES IN FACILITIES OPERATED BY WATER SUPPLY, IN PARTICULAR SWIMMING POOLS | |
JPH0632820B2 (en) | Method and apparatus for improving the Langerian index of tap water | |
JPS54147650A (en) | Sludge pressurizing floating enriching device | |
Sverdrup et al. | Lake liming in different types of acid lakes using various types of calcite powders and methods | |
JPS5343955A (en) | Control device for activated sludge water treatment works | |
JPS55114706A (en) | Grouting method and apparatus thereof | |
JPH09141273A (en) | Ph adjustment device of alkali waste water from tunnel by aeration | |
JPS5732790A (en) | Treatment of waste water | |
SU861338A1 (en) | Automatic unit for rendering harmless waste water | |
Emiroglu et al. | Study of Aeration Performance of Open Channel Chutes Equipped with a Flip Bucket. | |
JPS57122995A (en) | Waste water treatment | |
JPS5439371A (en) | Method of mixing acidic waste water and alkaline waste water for neutrali- zation | |
JPS5534171A (en) | Pressure floating type concentrating plant of sludge or waste water or others | |
JPS5628399A (en) | Control device for water hammer preventive air tank in liquid transfer pipeline | |
Sharp | Discussion of “Initial Dilution of Horizontal Jet in Crossflow” by Joseph HW Lee and Peter Neville-Jones (May, 1987, Vol. 113, No. 5) | |
JPS54158064A (en) | Aeration airflow controller | |
Desai et al. | Problems in standardization of wastes and effluents with special reference to Trombay fertilizers factory | |
McFarland | Corrosion and scale inhibitors for water distribution systems | |
JPS5343956A (en) | Control device for activated sludge water treatment works | |
JPS5710389A (en) | Detecting device for rain-water arrival at aerating tank in sewage treating plant | |
JPS52109754A (en) | Oxidation atmosphere apparatus | |
Coughlan et al. | Design and early operating experience of activated-sludge plant for combined treatment of pulp, paper, and domestic wastes |