Energy feasibility and life cycle assessment of sludge pretreatment methods for advanced anaerobic digestion

被引：0

作者：

Balasundaram, Gowtham ^{[1
]}

Vidyarthi, Praveen Kumar ^{[2
]}

Gahlot, Pallavi ^{[1
]}

Arora, Pratham ^{[2
]}

Kumar, Vinod ^{[3
]}

Kumar, Manish ^{[4
]}

Kazmi, A.A. ^{[1
]}

Tyagi, Vinay Kumar ^{[5
]}

机构：

[1] Department of Civil Engineering, Indian Institute of Technology Roorkee, 247667, India

[2] Department of Hydro and Renewable Energy, Indian Institute of Technology Roorkee, 247667, India

[3] School of Water, Energy and Environment, Cranfield University, Cranfield,MK43 0AL, United Kingdom

[4] Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun,248007, India

[5] Environmental Hydrology Division, National Institute of Hydrology, Roorkee,247667, India

来源：

Bioresource Technology | 2022年 / 357卷

关键词：

Anaerobic digestion - Energy efficiency - Exhaust gases - Global warming - Life cycle - Microwaves - Sludge digestion;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Energy sustainability is one of the critical parameters to be studied for the successful application of pretreatment processes. This study critically analyzes the energy efficiency of different energy-demanding sludge pretreatment techniques. Conventional thermal pretreatment of sludge (∼5% total solids, TS) produced 244 mL CH4/gTS, which could result in a positive energy balance of 2.6 kJ/kg TS. However, microwave pretreatment could generate only 178 mL CH4/gTS with a negative energy balance of −15.62 kJ/kg TS. In CAMBI process, the heat requirements can be compensated using exhaust gases and hot water from combined heat and power, and electricity requirements are managed by the use of cogeneration. The study concluded that © 2022 Elsevier Ltd

引用