Life-cycle assessment of sewage sludge-based large-scale biogas plant

被引：46

作者：

Singh, Akash Deep ^{[1
]}

Upadhyay, Apoorva ^{[1
]}

Shrivastava, Sandeep ^{[2
]}

Vivekanand, Vivekanand ^{[1
]}

机构：

[1] Malaviya Natl Inst Technol, Ctr Energy & Environm, Jaipur 302017, Rajasthan, India

[2] Malaviya Natl Inst Technol, Dept Civil Engn, Jaipur 302017, Rajasthan, India

来源：

BIORESOURCE TECHNOLOGY | 2020年 / 309卷

关键词：

Biogas; Anaerobic digestion; Bioenergy; Life-cycle assessment; Sewage sludge; ENVIRONMENTAL IMPACTS; ANAEROBIC-DIGESTION; DEPLOYMENT; INVENTORY;

D O I：

10.1016/j.biortech.2020.123373

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this work was to study the life-cycle assessment (LCA) and impact of a biogas plant based on the municipal sewage sludge (6000 m(3) capacity biogas plant at Wastewater Treatment Plant (WWTP), Delawas, Jaipur - Rajasthan, India), analyzing the environmental effects instigated due to basic systems of biogas production and also to examine the impact of using biogas as an alternate fuel using ReCiPe and midpoint methods. The results indicated that the construction of plant was insignificant to the whole life cycle impacts. Biogas plant showed negative GHG emissions (-0.2385 kg CO2 eq/m(3)) compared to coal-based electricity plants and digestate produced could be a good option to replace chemical fertilizer. Biogas production and agricultural spreading contributed -3.059E-08 kg CFC-11 eq/m(3) towards beneficial effects which may be attributed to the avoidance of electricity and artificial fertilizers. The results indicated that sewage sludge-based biogas plant showed beneficial impact on the environment.

引用

页数：8

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