Related by context. Frequent words. (Click for all words.) 58 digestate 56 sludges 55 wastewater sludge 55 bio solids 55 mineral ores 54 liquid fertilizers 54 livestock manure 54 wastewater effluent 53 toxic residues 53 recyclate 53 evaporation ponds 52 inorganic fertilizers 52 gasifying 52 wastewaters 52 agricultural residues 52 lignocellulosic biomass 52 toxic solvents 52 Bagasse 52 soil conditioner 52 recyclable plastics 51 crop residues 51 sewage effluent 51 intensively farmed 51 effluent 51 Kuan Yin Taiwan 51 renewable feedstocks 51 portland cement 51 nonrenewable resources 51 pelletized 50 contaminate groundwater 50 ethyl acetate 50 manures 50 potassium sulphate 50 composted manure 50 fluorochemicals 50 waste MSW 50 herbicides pesticides 50 revegetated 50 biomass feedstocks 50 reverse osmosis desalination 49 biodiesel feedstock 49 landfilled 49 nonferrous scrap 49 byproducts 49 biosolid 49 gasified 49 adipic acid 49 dewatered 49 Grass clippings 49 cellulosic materials 49 agrichemicals 48 eucalyptus plantations 48 compost heaps 48 environmentally beneficial 48 microbial fermentation 48 Reverse osmosis 48 rice husks 48 biosolids 48 contaminated soils 48 hog manure 48 beneficiated 48 Contaminated soil 48 absorbs carbon dioxide 48 compost 48 cattle feedlots 48 composted 48 leafless charred trunks 48 fertilizers pesticides 48 hydrated lime 48 petro chemicals 48 recharge groundwater 48 biomass combustion 48 feedstock 48 pomace 48 forestry plantations 48 pesticides fertilizers 47 arable crops 47 waste 47 wood preservatives 47 wool insulation 47 Effluent 47 arable farmland 47 Septic tanks 47 rice hulls 47 jatropha seeds 47 cellulosic biomass 47 arable lands 47 methylene chloride 47 naturally occurring mineral 47 hemicellulose 47 vermicompost 47 PCBs polychlorinated biphenyls 47 flue gases 47 absorbents 47 geotextiles 46 livestock rearing 46 bauxite ore 46 sub bituminous coal 46 biodigester 46 potent greenhouse gas 46 organic fertilizers