US 12,441,640 B2
Composite treatment and remediation technology for polluted water and soil
Lei Wang, Beijing (CN); Ming Chang, Beijing (CN); Haiqing Liao, Beijing (CN); Shungui Zhou, Beijing (CN); Shaofeng Li, Beijing (CN); Weining Xu, Beijing (CN); Xiaoshu Wang, Beijing (CN); Yangyang Wang, Beijing (CN); and Yiwei Li, Beijing (CN)
Assigned to CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES, Beijing (CN)
Appl. No. 17/906,608
Filed by CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES, Beijing (CN)
PCT Filed Aug. 6, 2021, PCT No. PCT/CN2021/111079
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2022/088825, PCT Pub. Date May 5, 2022.
Claims priority of application No. 202011191731.0 (CN), filed on Oct. 30, 2020.
Prior Publication US 2023/0249998 A1, Aug. 10, 2023
Int. Cl. C02F 3/10 (2023.01); B09C 1/06 (2006.01); B09C 1/08 (2006.01); C02F 3/00 (2023.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 101/20 (2006.01)
CPC C02F 3/106 (2013.01) [B09C 1/065 (2013.01); B09C 1/08 (2013.01); C02F 3/104 (2013.01); C02F 2003/003 (2013.01); C02F 2101/105 (2013.01); C02F 2101/16 (2013.01); C02F 2101/20 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A process comprising:
passing polluted water through either a) a filled bed of bulk loaded composite particles or through b) a filter cell of a fixed bed of bulk loaded composite particles to yield decontaminated water; heavy metal ions and organics being retained in the composite particles;
wherein each composite particle comprises zero-valent iron biochar and sludge biochar.