Treatment of mixed waste (heavy metals, organics) is problematic. Bioremediation can be inhibited by heavy metal toxicity. Sorption barriers require low-cost sorbents to be cost-effective and have a limited life as they become saturated with contaminants. Developed at the University of Technology, Sydney, the ReSORB Regenerative Sorption Oxidation Reactive Barrier method uses an engineered filtration media consisting of impregnated woodchips (lignocellulosic waste) as a reactive media within a non reactive matrix. The reactive media can be used to treat contaminated effluents either exsitu in canisters or insitu within a permeable reactive barrier. Impregnation of the woodchips can either be done before placement or insitu, resulting in a long term regenerative remediation solution.

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