1. College of Engineering (Key Laboratory for Clean Renewable Energy Utilization Technology, Ministry of Agriculture), China Agricultural University, Qinghua Donglu 17, Beijing 100083, P.R. China
2. Shandong Sino-March Environmental Technology Co., Ltd., Zhujiang Road 32, Yantai 264006, Shandong P.R. China
3. Yantai Institute, China Agricultural University, Binhai Middle Road 2006, Yantai 264032, Shandong P.R. China