Environment & Ecology · Environmental Science
Why must street sweeping waste and drain silt ideally be kept separate from household organic waste streams?
- 1They have much higher moisture content that prevents any aerobic digestion
- 2They drastically reduce composting efficiency by increasing organic carbon content
- 3They excessively increase the overall calorific value of MSW during combustion
- 4They may contain toxic contaminants such as heavy metals and hydrocarbons from vehicular emissions✓
Correct answer
They may contain toxic contaminants such as heavy metals and hydrocarbons from vehicular emissions
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