Microbial activity improvement agent, microbial activity improvement method, and biological waste treatment method

摘要

A compound selected from the group consisting of 4-quinolone and derivatives thereof, homoserine lactone derivatives, and indole and derivatives thereof, and salts thereof have an action of a microbial activity improvement agent, and when it is used for a microbial activity improvement method and a biological waste treatment method, the compound or the salt thereof is useful to achieve the improvement in the treatment capacity that transcends the limit of improvement in the treatment capacity of conventional biological waste treatment facilities.

主权项

1. A microbial activity improvement method comprising the step of adding one or more compounds selected from the group consisting of compounds represented by the following formulae (1), (3) and (4) or salts thereof into an environment where a microorganism exists: wherein R1 to R6 each independently represents a hydrogen atom, a hydroxyl group, or a C1-6 alkyl group; R13 to R17 each independently represent a hydrogen atom or a group represented by any of the following formulae (5) to (7): and R18 represents a C9-15 alkyl group optionally having an oxo group.