Title:
ENHANCED ANAEROBIC REMEDIATION REAGENT FOR CHROMIUM-CONTAMINATED SITE, PREPARATION METHOD, AND USAGE METHOD
Document Type and Number:
WIPO Patent Application WO/2022/056954
Kind Code:
A1
Abstract:
An enhanced anaerobic remediation reagent for a chromium-contaminated site, a preparation method, and a usage method. The enhanced anaerobic remediation reagent comprises: vegetable oil, an emulsifier, glycerin, lactate, lactate ester, vitamin B12, diammonium phosphate, and water. The preparation method comprises: adding an emulsifier and glycerin to part of water, and heating to dissolve same to form a solution A; adding lactate, lactate ester, vitamin B12, and diammonium phosphate to the remaining part of water, and mixing same to form a solution B; stirring vegetable oil, the solution A, and the solution B for emulsification, and standing for discharging. The usage method comprises: mixing 6%-10% by volume of an enhanced anaerobic remediation reagent with 90%-94% by volume of hydrogen-containing water, and then injecting same into the soil or groundwater. The remediation reagent is efficient, long in sustained release time, environmentally friendly, and easy in material acquisition.
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Inventors:
LI SHUCAI (CN)
WEI LI (CN)
FANG HUAXIANG (CN)
REN BEI (CN)
LI LAISHUN (CN)
TANG XIANJIN (CN)
CHEN YAOJUN (CN)
WEI LI (CN)
FANG HUAXIANG (CN)
REN BEI (CN)
LI LAISHUN (CN)
TANG XIANJIN (CN)
CHEN YAOJUN (CN)
Application Number:
PCT/CN2020/118073
Publication Date:
March 24, 2022
Filing Date:
September 27, 2020
Export Citation:
Assignee:
BEIJING GEOENVIRON ENGINEERING & TECHNOLOGY INC (CN)
International Classes:
B09C1/08; C02F3/28; C09K17/40; C02F101/22; C02F103/06
Foreign References:
CN109534517A | 2019-03-29 | |||
CN110076188A | 2019-08-02 | |||
CN110305673A | 2019-10-08 | |||
CN103978028A | 2014-08-13 | |||
CN109365522A | 2019-02-22 | |||
JP2015013231A | 2015-01-22 |
Attorney, Agent or Firm:
BEIJING HUI & XIN IP LAW OFFICE (CN)
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