Related by context. Frequent words. (Click for all words.) 60 livestock manure 59 Leachate 59 decomposing organic 57 fecal material 55 digestate 54 herbicides pesticides 54 compost heaps 53 animal dung 53 manure 53 greywater 53 Septic tanks 53 absorbs carbon dioxide 53 Volatile organic compounds 53 Grass clippings 52 decaying vegetation 52 graywater 52 inorganic compounds 52 manures 52 effluent 51 hog manure 51 sludges 51 potent greenhouse gas 51 fluorocarbons 51 ammonia nitrogen 51 manure piles 50 contaminate groundwater 50 bonemeal 50 toxic residues 50 Nitrogen oxides 50 radioactively contaminated 50 nitrification 50 wastewater sludge 50 nitrogen phosphorous 50 rice hulls 50 pig manure 50 absorbents 50 composted manure 50 pesticides fertilizers 50 grass clippings leaves 50 cottonseed meal 50 Reverse osmosis 50 sewage effluent 49 Carbon sequestration 49 granulate 49 Effluent 49 hydrated lime 49 vegetable scraps 49 Contaminated soil 49 Drip irrigation 49 manure pits 49 recharge groundwater 49 fertilizers pesticides 49 slurry 49 wastewater effluent 49 lawn clippings 49 Trichloroethylene 49 gasified 49 biomass combustion 49 fish emulsion 49 industrial effluents 49 pollute waterways 48 nitrogen 48 lignocellulosic biomass 48 biocrude 48 solids 48 Manure 48 anaerobic digesters 48 pesticides herbicides 48 Bioreactor 48 Sulfuric acid 48 decomposing garbage 48 Bagasse 48 Odd numbered addresses 48 polluting waterways 48 Anhydrous ammonia 48 chicken manure 48 toxic solvents 48 flue gases 48 digesters 48 artificial fertilizers 48 de ionized 48 effluents 48 compost 48 Slurry 48 thermo chemical 48 liquid fertilizers 47 Residues 47 poultry litter 47 vermicompost 47 Stormwater runoff 47 potassium permanganate 47 copper sulphate 47 combustion gases 47 purines 47 methane 47 compost piles 47 collects rainwater 47 soil conditioner 47 elemental sulfur 47 adipic acid 47 inorganic fertilizers