Patent ID: 6806078
Filing Date: 2004-10-19
Classification: B09C,Y10S

Abstract:
A method for removing contaminants from soil and ground water using anaerobic biostimulation to produce an anaerobic treatment zone that enhances biotransformation or immobilization of the target contaminants, consisting of essentially the following steps:a) blending water with digestible oil or fat and an emulsifier having an HLB of 8 to 15 to form an emulsion, b) homogenizing said emulsion at temperatures of 100 to 200Â° F. and pressures of 1500 to 3000 psig until a stable emulsion having a median droplet size below 0.5 microns is obtained, c) pasteurizing the homogenized emulsion thereby forming a substrate suitable for bioremediation, and d) injecting said substrate into contaminated soil and ground water.