The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 14, 2025
Filed:
Aug. 06, 2021
Chinese Research Academy of Environmental Sciences, Beijing, CN;
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;
Yiwei Li, Beijing, CN;
CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES, Beijing, CN;
Abstract
The present invention relates to a composite treatment and recovery technique of polluted water body and soil. Iron-rich straw biomass, after being crushed, is mixed and granulated with sludge, and is pyrolytic charred by programmed heating, to obtain bulk loaded zero-valent iron biochar and sludge biochar composite particles, which are packed as fillers in a filled bed or as filters in filter cells of a fixed bed, for effective recovery of complex polluted water, polluted by heavy metals, organics, nitrogen, phosphorus, and the like.