Refuse and refuse disposal Factory and trade waste 6 Recycling (Waste, etc.) 4 Hazardous wastes 3 Economic aspects 2 Environmental policy 2 Environmental protection 2 India 2 Bioremediation 1 Chemical engineering 1 Chemical industry 1 Dissertations, Academic (Ph.D) 1 Déchets 1 Développement durable 1 Environmental biotechnology 1 Environmental economics 1 Environmental health 1 Environmental law, International 1 Environmental management 1 Environmental protection engineering 1 Factory and trade waste--Management 1 Food industry and trade-Waste disposal 1 Government policy 1 Kerala 1 Management 1 Manufacturing processes 1 Natural resources 1 Pollution control industry 1 Product life cycle--Environmental aspects 1 Production planning 1