Patent ID: 7044152
Filing Date: 2006-05-16
Classification: B09C,Y10T

Abstract:
1. A closed, pressurized delivery system for injection of in-situ remediation compounds such as slurries, stimulants, nutrients, biological cultures, colloidal suspensions, oxidizing agents, reducing agents and mixtures of compounds to underground, contaminated matter, comprising: a first liquid diaphragm pump connected to an inflow source of water, said liquid diaphragm pump being in fluid communication with a plurality of bioslurry tanks connected in parallel with said first pump, said bioslurry tanks each having a drain for discharging an injectant therefrom; valve means located between said first liquid diaphragm pump and each of said bioslurry tanks for controlling either the individual or simultaneous flow of fluid from said first pump to each of said bioslurry tanks; a second liquid diaphragm pump having an inlet port for receiving the combined flow of injectant from said bioslurry tank drains, the second liquid diaphragm pump having an outlet in fluid communication with a system discharge port; and a source of compressed gas in valved fluid communication with said system discharge port whereby an injectant is discharged therefrom under pressure.