Abstract: The process for bioremediation of contaminated sludge including the steps of mixing the contaminated sludge with immature compost in the thermophilic phase; nutrients; inoculants; enzymes and microbes. The mixed composition is composted indoors by microbial breakdown, by controlling temperature; moisture; aeration, porosity and pH. The mixed composition is matured by fungal breakdown, by setting the mixed composition outdoors in windrows. The mixed composition is then stabilized by spreading it on a soil surface in a layer of less than one meter thick.

Abstract: The bio-product includes a mixture of bark composts comprising up to 80% dried screened, aged-wood barks composts with up to 20% dehydrated and pasteurized agricultural residues from manure, potato and/or fish waste sources. The particle sizes, moisture content and pH of the bio-product is adjusted to satisfy three main markets; bio-fertilizers; turf top-dressings and peat moss substitute/amendment. The pH of the product is adjusted naturally by selecting and including therein bark composts from softwood and/or hardwood species.