Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2004-12-16
2008-12-30
Barry, Chester T (Department: 1797)
Liquid purification or separation
Processes
Treatment by living organism
C210S615000, C210S616000, C210S903000, C210S170070
Reexamination Certificate
active
07470367
ABSTRACT:
The invention relates to a process for removing a contaminant from groundwater wherein it is not necessary for groundwater to be extracted from the soil. To that end, the process according to the invention comprises the following steps: a) a biologically active layer (2) is applied on or in the soil b) the contaminated groundwater is contacted with the biologically active layer (2). The contaminant is converted in the biologically active layer. The biologically active layer (2) may be applied discontinuously. The contaminated groundwater may be contacted with the biologically active layer with the aid of for example a gas.
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Grootjen Dominicus Richardus Johannes
Plum Martin Willem Jozef
Steenbakkers Laurentinus Wilhelmus
Barry Chester T
Nixon & Vanderhye P.C.
Terreco Holding B.V.
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