SUBJECT
Waste disposal
Hospitals
51
Environmental aspects
28
Mineral industries
16
Electronic books
12
Refuse and refuse disposal
10
Chemical industry
9
Pollution
7
Food industry and trade
6
Hazardous wastes
6
Waste minimization
6
Economic aspects
5
Management
5
Tailings (Metallurgy)
5
Animal waste
4
Incinerators
4
Purification
4
Recycling (Waste, etc.)
4
Sewage
4
Universities and colleges
4
Wood-pulp industry
4
Animal industry
3
Coal mines and mining
3
Congresses
3
Environmental policy
3
Handbooks, manuals, etc
3
Nuclear power plants
3
Philippines. Department of Environment and Natural Resources
3
Aquaculture
2
Biological treatment
2
Chemical plants
2
Chemical processes
2
Chemicals
2
Coal-fired power plants
2
Coastal zone management
2
Color removal
2
Corrupt practices
2
Costs
2
Distilleries
2
Dyes and dyeing
2
Energy conservation
2
Factory and trade waste
2
Fertilizers
2
Finishing
2
Government policy
2
Health aspects
2
Health facilities
2
Incineration
2
Infectious wastes
2
Irrigation
2
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