Title:
SLURRY AND PREPARATION METHOD THEREFOR, AND CONSTRUCTION METHOD FOR PERMEABLE REACTIVE BARRIER
Document Type and Number:
WIPO Patent Application WO/2023/123135
Kind Code:
A1
Abstract:
A foam slurry. Raw materials comprise cement, a foaming agent, a cell opener, a leveling agent, an active filler, a dispersing agent, and water in specific parts by weight. Also provided are a preparation method for the foam slurry and a permeable reactive barrier in which the foam slurry is used as a filler. The foam slurry can be foamed to obtain a porous slurry, pores inside a barrier body obtained after drying and shaping can communicate the upstream and the downstream of the barrier body, and contaminants in underground water passing through the pores in the barrier body can be metabolized and eliminated by loading the active filler. The foaming technology is used and the foaming agent and the cement are used for constructing the barrier body, such that the foam slurry and the reactive barrier are organically combined, a slurry for supporting is not used at all, the barrier body is directly made into a slurry to be transferred into a pit, and the slurry is dehydrated and solidified directly in the pit. Direct transformation to the barrier body is achieved while supporting is implemented, such that the overall construction operation is simplified, no waste slurry is generated in the whole process, and waste of the slurry and secondary contamination are avoided.
Inventors:
GUO LILI (CN)
LI JIACHEN (CN)
KANG SHAOGUO (CN)
XIONG JING (CN)
WANG QI (CN)
LIU YARU (CN)
XIN CHENG (CN)
LI SHUPENG (CN)
LI JIACHEN (CN)
KANG SHAOGUO (CN)
XIONG JING (CN)
WANG QI (CN)
LIU YARU (CN)
XIN CHENG (CN)
LI SHUPENG (CN)
Application Number:
PCT/CN2021/142715
Publication Date:
July 06, 2023
Filing Date:
December 29, 2021
Export Citation:
Assignee:
BCEG ENV REMEDIATION CO LTD (CN)
International Classes:
C04B28/02; C02F1/62; C04B28/04; C04B28/18; E02D29/00; E03F5/00; C02F101/22; C02F103/06; C04B111/74
Domestic Patent References:
| WO2002088273A1 | 2002-11-07 | |||
| WO2008130107A1 | 2008-10-30 |
Foreign References:
| CN113233841A | 2021-08-10 | |||
| CN206089212U | 2017-04-12 | |||
| CN109704460A | 2019-05-03 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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