CONTAMINANT DEGRADATION METHODS, BIOMATERIAL COMPOSITIONS, AND SYSTEMS

    公开(公告)号:US20240200051A1

    公开(公告)日:2024-06-20

    申请号:US18544148

    申请日:2023-12-18

    摘要: Disclosed herein are compositions, methods, and systems useful in remediating contaminants, for example environmental contaminants. In many embodiments, the contaminant is selected from atrazine and chlorothalonil, and the remediation is accomplished with a biomaterial. In many embodiments, the biomaterial comprises an enzyme that catalyzes the contaminant remediation and a gel, for example a biogel or sol-gel. In some embodiments, the enzyme is triazine hydrolase (TrzN) for example TrzN from Arthrobacter aurescens TC1. The gel may be in the form of beads, for example alginate beads, and the beads may be coated, for example in chitosan. The disclosed sol-gel may be comprised of tetramethylorthosilicate (TMOS). The disclosed compositions, methods, and systems may increase enzymatic activity and/or protect the enzyme from activity degradation due to pH, temperature, proteolysis, dehydration, etc.

    METHOD FOR TREATING ORGANIC WASTEWATER
    18.
    发明公开

    公开(公告)号:US20240051857A1

    公开(公告)日:2024-02-15

    申请号:US18266853

    申请日:2021-12-27

    摘要: Provided is a method for treating wastewater, the method being capable, even during low water temperature periods, of efficiently purifying organic wastewater that experiences large temperature differences in a year. A method for treating organic wastewater uses a device including a predetermined reaction tank containing activated sludge and a culture tank and includes the steps of: culturing, in the culture tank, a microorganism contained in the activated sludge, while maintaining a temperature of a content of the culture tank at a temperature that is at least 5° C. lower than a water temperature of the organic wastewater at a start of culturing of the microorganism and not lower than −1° C. and not higher than 10° C.; and then introducing the microorganism into the reaction tank.