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:
Apr. 04, 2023
Filed:
Dec. 10, 2019
Tongji University, Yangpu District, CN;
Xiaohu Dai, Shanghai, CN;
Lei Li, Shanghai, CN;
Ying Xu, Shanghai, CN;
Lipeng Dong, Shanghai, CN;
Linke Zheng, Shanghai, CN;
Bin Dong, Shanghai, CN;
Lingling Dai, Shanghai, CN;
TONGJI UNIVERSITY, Yangpu District, CN;
Abstract
The disclosure relates to a method for enhancing methanogenesis in anaerobic digestion of municipal sludge by utilizing a filter screen structure, comprising: arranging a filter screen structure with titanium or titanium alloy as the framework and FeOas the coating in the anaerobic digestion system to accelerate the rate of hydrolysis and acidification, and increase the proportion of methane in biogas. Compared with the prior art, the disclosure increases the contact between FeOand anaerobic microorganisms by means of the screen structure; the stable crystal structure of FeOensures the sustainability as an electron carrier while enriching electroactive microorganisms; titanium or titanium alloy, as a material with high strength, corrosion resistance, good biocompatibility, and good conductivity, can form a good match with FeOand assist in promoting the electron transfer; the disclosure has the advantages of low cost, high income, no need of repeated dosing and stable effect, and could strengthen the oxidation and decomposition of organic matter in the anaerobic digestion, accelerate the rate of methanogenesis, and increase the gas production.