US 12,246,977 B2
Bioaugmentation treatment process for lithium battery producing wastewater
Jinyou Shen, Nanjing (CN); Hebing Zhang, Jingmen (CN); Jing Wang, Nanjing (CN); Junfeng He, Jingmen (CN); Xinbai Jiang, Nanjing (CN); Hong Wang, Jingmen (CN); Cheng Hou, Nanjing (CN); and Xiaodong Liu, Nanjing (CN)
Assigned to Nanjing University of Science and Technology, Nanjing (CN); and Zhenrun Environmental Science and Technology Co., Ltd., Jingmen (CN)
Filed by NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, Nanjing (CN); and ZHENRUN ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO., LTD., Jingmen (CN)
Filed on Aug. 8, 2022, as Appl. No. 17/883,032.
Application 17/883,032 is a continuation of application No. PCT/CN2020/133579, filed on Dec. 3, 2020.
Claims priority of application No. 202010716618.3 (CN), filed on Jul. 23, 2020.
Prior Publication US 2022/0402791 A1, Dec. 22, 2022
Int. Cl. C02F 3/30 (2023.01); C02F 1/52 (2023.01); C02F 3/12 (2023.01); C02F 3/34 (2023.01); C02F 101/16 (2006.01); C02F 101/20 (2006.01); C02F 101/34 (2006.01); C02F 101/38 (2006.01); C02F 103/34 (2006.01)
CPC C02F 3/30 (2013.01) [C02F 3/302 (2013.01); C02F 3/341 (2013.01); C02F 1/52 (2013.01); C02F 3/1268 (2013.01); C02F 2101/16 (2013.01); C02F 2101/20 (2013.01); C02F 2101/34 (2013.01); C02F 2101/38 (2013.01); C02F 2103/34 (2013.01); C02F 2301/08 (2013.01); C02F 2303/20 (2013.01); Y02W 10/10 (2015.05)] 12 Claims
OG exemplary drawing
 
1. A bioaugmentation treatment process for lithium battery producing wastewater, comprising the following steps:
1) introducing lithium battery producing wastewater into a hydrolytic acidification tank, and adding a sludge mixture of Enterobacter sp. NJUST50 and anaerobic activated sludge to the hydrolytic acidification tank for hydrolytic acidification treatment, wherein the Enterobacter sp. NJUST50 is deposited in China Center for Type Culture Collection under CCTCC Accession NO: M2019128;
2) introducing the wastewater after treatment in step 1) into an anoxic tank, and adding a sludge mixture of the Enterobacter sp. NJUST50 with anaerobic activated sludge to the tank for anoxic treatment;
3) introducing the wastewater after treatment in step 2) into an aerobic tank, and adding a sludge mixture of the Enterobacter sp. NJUST50 and aerobic activated sludge to the tank for aerobic treatment;
4) introducing the wastewater after treatment in step 3) into an anoxic filter tank, and adding a sludge mixture of the Enterobacter sp. NJUST50 with anaerobic activated sludge to the filter tank for anoxic treatment; and
5) introducing the wastewater after treatment in step 4) into a biological aerated filter tank, and adding a sludge mixture of the Enterobacter sp. NJUST50 with aerobic activated sludge to the filter tank for aerobic treatment.