Factory and trade waste Dissertations 18 Dissertations, Academic 18 Management 15 Refuse and refuse disposal 13 Environmental aspects 11 Sewage 9 Purification 8 Hazardous wastes 4 Waste disposal 4 Waste products 4 Water 4 Analysis 2 Automation 2 Biodegradation 2 Biotechnology 2 Chlorella 2 Expert systems (Computer science) 2 Heavy metals 2 Industrial applications 2 Manufactures 2 Palm oil industry 2 Salvage (Waste, etc.) 2 Sewage disposal 2 Solid waste management 2 Absorption and adsorption 1 Algae 1 Anaerobic bacteria 1 Biological treatment 1 Bioremediation 1