Environmental Engineering Reference
In-Depth Information
Animal feces
Approximately 87 million tone
Sewage sludge
Approximately 75 million tone
Black liquor
Approximately 70 million tone
Waste paper
Approximately 37 million tone
Food waste
Approximately 20 million tone
Lumber residues
Approximately 4.3 million tone
Wood waste
Approximately 4.7 million tone
Non-edible portions of farm crops
Approximately 14 million tone
Forestry residues
Approximately 3.4 million tone
Fig. 8.2 Annual biomass production and recycling rate 2006
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