公开(公告)号：US20230027602A1

公开(公告)日：2023-01-26

申请号：US17475182

申请日：2021-09-14

申请人： Tongji University ,  Jiangnan University

发明人： Yinguang Chen ,  Xiong Zheng ,  Xuemeng Zhang ,  Jing Zhou ,  Meirou Wu ,  Chen Wang ,  Wenquan Ruan ,  Hengfeng Miao ,  Mingxing Zhao

IPC分类号： C12N1/36 ,  C12P7/52 ,  C12P7/54

摘要： The present invention provides a method of enhancing continuous directional high-value biological conversion of an urban wet garbage open system. The method includes wet garbage crushing, low-energy consumption hydrolysis, continuous conversion of organic components of wet garbage into short-chain fatty acid, continuous directional conversion of other components of short-chain fatty acid into acetic acid, separation and microbial reflux of acetic acid, and the like. In this method, by crushing wet garbage, performing low-energy consumption hydrolysis, and seeding acclimatized activated sludge, two stages of anaerobic fermentations are carried out to firstly convert organic components of the wet garbage continuously into short-chain fatty acid, and then continuously and directionally convert other components of short-chain fatty acid into acetic acid, so as to realize continuous directional high-value biological conversion of the urban wet garbage in an open system without adding pure microbes and a large amount of chemicals.

公开(公告)号：US20220324726A1

公开(公告)日：2022-10-13

申请号：US17843399

申请日：2022-06-17

申请人： Jiangnan University

发明人： Hengfeng Miao ,  Ziwen Chen ,  Yingying Jiang ,  Yuping Li ,  Wenquan Ruan

IPC分类号： C02F1/28 ,  C02F1/72

摘要： The disclosure provides a repairing material for emergency treatment of a black and odorous surface water environment and its preparation method, belonging to the fields of environmental science and engineering technology. The preparation method of the disclosure specifically includes the following steps: (1) uniformly stirring activated carbon, calcium chloride, ammonia water solution, polyethylene glycol and water in a stirrer, then dropwise adding hydrogen peroxide, and after the completion of the dropwise adding, obtaining a calcium peroxide repairing material solution; (2) adding a sodium hydroxide solution to the calcium peroxide repairing material solution obtained in step (1) until a pH reaches 11.5, thereby obtaining a suspension; (3) centrifuging the suspension in step (2) to obtain a solid; and (4) washing the solid in step (3) with distilled water until a final pH of residual water reaches 8.4, and then drying the obtained precipitate to obtain the repairing material. The repairing material of the disclosure has good treatment effect and high efficiency.