Electricity generation and acid and alkaline recovery from pickled waters/wastewaters through anaerobic digestion, bipolar membrane electrodialysis and solid oxide fuel cell hybrid system

Xu Linji; Dong Feifei; Yang JixiangLiu WenzongZhu LeiHe QiangWang XinjieLi HonggangWang Xinzhu

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Electricity generation and acid and alkaline recovery from pickled waters/wastewaters through anaerobic digestion, bipolar membrane electrodialysis and solid oxide fuel cell hybrid system

机译：Electricity generation and acid and alkaline recovery from pickled waters/wastewaters through anaerobic digestion, bipolar membrane electrodialysis and solid oxide fuel cell hybrid system

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Pickled industrial wastewater (PIWW) containing concentrated organics, ammonia, phosphorus and NaCl is a bioenergy and renewable resource. This study developed a hybrid system of anaerobic digestion (AD), bipolar membrane electrodialysis (BMED) and solid oxide fuel cells (SOFC) to recover biogas and ammonia as renewable fuels, and generate acid and alkaline from four pickle waters/wastewaters. The results demonstrated that anaerobic sludge particles were granulated in hypersaline circumstances and halophilic Bacteroidetes and Firmicutes were two dominant phyla. AD converted 70% of chemical oxygen demand (COD) to biogas and methane yield was 0.051 L-CH4 g-COD-1 on average. The maximum desalination, acid and alkaline generation rates achieved by BMED were 0.304 mol h-1, 0.114 mol h-1, and 0.136 mol h-1, respectively. SOFC used recovered biogas and NH3/H2 and output 500 mW cm-2 and 530 mW cm-2 of peak power densities, respectively. ADBMED-SOFC hybrid system finally gained 55% of maximum net energy efficiency for the 3rd pickled water. These results signify that AD-BMED-SOFC hybrid system is more feasible and potential when pickled waters are independently treated from pickled wastewaters.

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来源
《Energy conversion & management》 |2022年第1期|114973.1-114973.12|共12页
作者
Xu Linji; Dong Feifei; Yang JixiangLiu WenzongZhu LeiHe QiangWang XinjieLi HonggangWang Xinzhu;
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作者单位

Chongqing Univ, Fac Environm & Ecol, Chongqing 400044, Peoples R China|Chongqing Univ, Coll Aerosp Engn, Chongqing Key Lab Heterogeneous Mat Mech, Chongqing, Peoples R China;

Guangdong Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Chem Engn & Light Ind, Guangzhou Key Lab Clean Transportat Energy Chem, Guangzhou, Peoples R China;

Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Key Lab Reservoir Aquat Environm, Chongqing, Peoples R ChinaHarbin Inst Technol Shenzhen, Sch Civil & Environm Engn, Shenzhen, Peoples R ChinaJiangsu Yihuan Grp Co Ltd, Yixing, Jiangsu, Peoples R ChinaChongqing Univ, Fac Environm & Ecol, Chongqing 400044, Peoples R ChinaChongqing Univ, Coll Aerosp Engn, Chongqing Key Lab Heterogeneous Mat Mech, Chongqing, Peoples R ChinaChongqing Acad Ecol & Environm Sci, Chongqing, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Pickled waters; wastewaters; Independent treatment; Electricity generation; Acid and alkaline recovery;

Electricity generation and acid and alkaline recovery from pickled waters/wastewaters through anaerobic digestion, bipolar membrane electrodialysis and solid oxide fuel cell hybrid system

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