Hydrolysis and methane yield enhancement of anaerobic co-digestion of kitchen waste and sewage sludge by air/carbon dioxide nanobubble water - Qingfang Zhang; Jiazi Niu; Peilin Guo; Jie Wang; Cheng Peng; Yifan Zhang; Zhe Liu; Yabian Wang; Liyang Xue; Tianfeng Wang (Fuel, 2025)