Permeable reaction wall technology is a kind of blunt treatment technology to remove dissolved pollutants from polluted water. It is a popular treatment method of groundwater pollution in recent years. The main technical indicators are as follows: The main implementation process: (1) For shallow PRBs not deeper than 10m, continuous trenching machines shall be used for excavation and backfilling of active materials in the vertical position of polluting plumes. At the same time, monitoring wells, drains and water level control holes shall be provided. Finally, Wall covered with soil. (2) There are many ways to excavate and backfill a PRB deeper than 10m. When deep soil mixing is used, auger rigs are typically used for drilling and backfilling. As the auger progresses slowly through the soil, a mixture of biological slurry and reactive material is injected into and mixed with the soil. The reaction material can be placed approximately 50 m below the surface of the earth in a loose sediment. Spin jet injection method, the injection tool to the extent necessary to inject high pressure through the nozzle reaction material and biological mud, continuous injection of a series of drilling to form a permeable reaction wall. Vertical hydraulic fracturing method is to put special tools into the borehole to orient the vertical fractures. Using the low velocity and high pressure water flow, the material is injected into the soil layer to form the fractures. A series of adjacent hydraulic drilling fractures form the permeable reaction wall. 4A Molecular Sieve,Molecular Sieve 4A,4 Angstrom Molecular Sieves,4A Molecular Sieve For Natural Gas Drying Applicant:Xuyi Yinuo Attapulgite New Material Co.,Ltd. , https://www.ynatta.com