Title:
METHOD FOR DETERMINING DIFFUSION RADIUS OF CONTAMINATED SOIL AND GROUNDWATER IN SITU INJECTION REPAIRING
Document Type and Number:
WIPO Patent Application WO/2017/219791
Kind Code:
A1
Abstract:
Disclosed is a method for determining the diffusion radius of contaminated soil and groundwater in situ injection repairing, comprising arranging points according to the triangular method, designing the pitch-row to be perpendicular to the flow direction of the groundwater and the array pitch along the flow direction of the groundwater, wherein the flowing diffusion of the repairing agent in the groundwater during the effective period of the reaction is considered. The method is divided into three steps: (1) observation method: under the high pressure and rotary jet injection conditions, injecting the repairing agent with a certain proportion of bromine ions as a tracer into the aquifer at the same time; judging the diffusion of the agents by observing the phenomenon of the grout returning and leaking in the adjacent injection points; (2) bromine ions tracer method: after the injection, fast sampling the groundwater at definite depth, rapidly detecting the concentration of the tracer there and then, comparing the concentration of bromide ions in the groundwater to background values; (3) bromide ions tracer + observation method: determining the optimal diffusion radius based on the comprehensive judgment. The method is suitable for the optimization design of the diffusion radius and hole arrangement parameters and the monitoring of injection effect in soil and groundwater in situ injection test and repair construction.
Inventors:
YANG YUEWEI (CN)
LI SHUPENG (CN)
ZHANG YUE (CN)
ZHANG XIAOBIN (CN)
GUO LILI (CN)
CUI SHUANGCHAO (CN)
SONG XIAOWEI (CN)
CHEN FAN (CN)
YIN PENGCHENG (CN)
LIU PENG (CN)
LIU YAN (CN)
NIU QIANG (CN)
LI SHUPENG (CN)
ZHANG YUE (CN)
ZHANG XIAOBIN (CN)
GUO LILI (CN)
CUI SHUANGCHAO (CN)
SONG XIAOWEI (CN)
CHEN FAN (CN)
YIN PENGCHENG (CN)
LIU PENG (CN)
LIU YAN (CN)
NIU QIANG (CN)
Application Number:
PCT/CN2017/084471
Publication Date:
December 28, 2017
Filing Date:
May 16, 2017
Export Citation:
Assignee:
BCEG ENV REMEDIATIONCO LTD (CN)
International Classes:
B09C1/00; G01N13/00
Foreign References:
| CN105973759A | 2016-09-28 | |||
| CN103480645A | 2014-01-01 | |||
| CN103934264A | 2014-07-23 | |||
| CN103894409A | 2014-07-02 | |||
| US7845883B1 | 2010-12-07 |
Attorney, Agent or Firm:
BEIJING CITY DONG FANG ZHI RUI INTELLECTUAL PROPERTY CO., LTD. (SPECIAL GENERAL PARTNERSHIP) (CN)
Download PDF: