Calculator Tool for Determining Greenhouse Gas Emissions for Biosolids Processing and End Use

被引:118
作者
Brown, Sally [1 ]
Beecher, Ned [2 ]
Carpenter, Andrew [3 ]
机构
[1] Univ Washington, Sch Forest Resources, Seattle, WA 98195 USA
[2] NE Biosolids & Residuals Assoc, Tamworth, NH 03886 USA
[3] No Tilth, Belfast, ME 04915 USA
关键词
NITROUS-OXIDE EMISSIONS; SOIL CARBON SEQUESTRATION; SEWAGE-SLUDGE TREATMENT; LANDFILL SITES; FERTILIZER APPLICATION; TEMPERATE GRASSLAND; MUNICIPAL LANDFILL; N2O EMISSIONS; NO-TILL; WASTE;
D O I
10.1021/es101210k
中图分类号
X [环境科学、安全科学];
学科分类号
083001 [环境科学];
摘要
A greenhouse gas (GHG) calculator tool (Biosolids Emissions Assessment Model, BEAM) was developed for the Canadian Council of Ministers of the Environment to allow municipalities to estimate GHG emissions from biosolids management. The tool was developed using data from peer reviewed literature and municipalities. GHG emissions from biosolids processing through final end use/disposal were modeled. Emissions from nine existing programs in Canada were estimated using the model. The program that involved dewatering followed by combustion resulted in the highest GHG emissions (Mg CO(2)e 100 Mg(-1) biosolids (dry wt.). The programs that had digestion followed by land application resulted in the lowest emissions (-26 and -23 Mg CO(2)e 100 Mg(-1) biosolids (dry wt.). Transportation had relatively minor effects on overall emissions. The greatest areas of uncertainty in the model include N(2)O emissions from land application and biosolids processing. The model suggests that targeted use of biosolids and optimizing processes to avoid CH(4) and N(2)O emissions can result in significant GHG savings.
引用
收藏
页码:9509 / 9515
页数:7
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