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  4. 中科院海岸带环境过程与生态修复重点实验室
Two-stage tandem co-fermentation of food waste and waste activated sludge assisted by endogenous alkaline hydrolase for short chain fatty acids-oriented biorefinery

文献类型：期刊论文

作者Wang, Yan5,6; Zhang, Peixiang5; Liu, Jinxuan5; Wei, Qiao3; Ding, Jiangbo5; Li, Xinyi5; Lu, Jinsuo5; Xu, Lin2; Li, Wenkai1; Pang, Heliang4,5
刊名JOURNAL OF CLEANER PRODUCTION
出版日期2026-04-08
卷号554页码:12
关键词Food waste Waste activated sludge Co-fermentation Endogenous alkaline hydrolase Carbon recovery
ISSN号0959-6526
DOI10.1016/j.jclepro.2026.148028
通讯作者Pang, Heliang(pangheliang00007@163.com)
英文摘要Urban waste management faces critical sustainability challenges, particularly with food waste (FW) and waste activated sludge (WAS). Acidogenic fermentation is a promising valorization pathway, yet low hydrolysisefficiency and insufficient carbon availability remain major bottlenecks. An endogenous alkaline hydrolaseassisted two-stage tandem co-fermentation of FW and WAS developed to overcome these constraints and enable simultaneous carbon recovery. The hydrolase-producing strains isolated from WAS (identified as Bacillus subtilis) generated alkaline protease and amylase activities of 58717.72 and 41483.83 U/L, respectively, enabling efficient FW solubilization. Across mixing ratios, the batch-scale co-fermentation carbon was predominantly retained in the liquid phase, while short-chain fatty acids (SCFAs) liquor exhibited adjustable C/N (10.51-23.80) and maintained cell viability at 71.4-81.3%. Under a wastewater treatment plants (WWTPs) external-carbon substitution scenario, the process delivered a positive net benefit of 75.72 CNY/t suspended solids (SS). The research also involved SCFAs loss, economic alkali consumption and carbon fate. Future work should prioritize validating hydrolase stability under continuous operation, optimizing solid-liquid separation, and assessing the effluent impacts of recycling SCFAs. Overall, these results indicate that endogenous hydrolase-assisted tandem co-fermentation provides a controllable route for SCFA-oriented carbon recovery from coupled urban wastes.
WOS关键词PH
WOS研究方向Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001722020500001
资助机构National Natural Science Foundation of China ; Key Research and Development Project of Shaanxi Province (Major Project) -Core Technology Research and Development ; Open Project of State Key Laboratory of Urban Water Resource and Environment ; QinChuangYuan Scientists + Engineers Team Project ; Xi'an Municipal Technology Challenge Project-Social Development Science and Technology Innovation Demonstration
源URL[http://ir.yic.ac.cn/handle/133337/42317]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Pang, Heliang
作者单位1.SCEGC 12 Construct Engn Grp Co Ltd, Ankang Natl High Tech Ind Dev Zone, Ankang 725000, Shaanxi, Peoples R China
2.Shaanxi Water Grp Water Treatment Equipment CO LTD, Xian 710016, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
4.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm SKLU, Harbin 150090, Peoples R China
5.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Shaanxi Key Lab Environm Engn, Xian 710055, Peoples R China
6.Tongji Univ, Sch Environm Sci & Engn, State Key Lab Water Pollut Control & Green Resourc, Shanghai 200092, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yan,Zhang, Peixiang,Liu, Jinxuan,et al. Two-stage tandem co-fermentation of food waste and waste activated sludge assisted by endogenous alkaline hydrolase for short chain fatty acids-oriented biorefinery[J]. JOURNAL OF CLEANER PRODUCTION,2026,554:12.
APA Wang, Yan.,Zhang, Peixiang.,Liu, Jinxuan.,Wei, Qiao.,Ding, Jiangbo.,...&Pang, Heliang.(2026).Two-stage tandem co-fermentation of food waste and waste activated sludge assisted by endogenous alkaline hydrolase for short chain fatty acids-oriented biorefinery.JOURNAL OF CLEANER PRODUCTION,554,12.
MLA Wang, Yan,et al."Two-stage tandem co-fermentation of food waste and waste activated sludge assisted by endogenous alkaline hydrolase for short chain fatty acids-oriented biorefinery".JOURNAL OF CLEANER PRODUCTION 554(2026):12.

入库方式： OAI收割

来源：烟台海岸带研究所

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