Toyo Tanso Co., Ltd.

Toyo University

Tomoya Nakazono

Tetsuro Tojo

Masatoshi Takeshita

Ai Ishikawa

Satoshi Sakuma

Tatsuo Sumino

Masashi Zenki

[Problem] A microorganism immobilized carrier is provided that is easy for microorganisms to adhere to, and is able to reduce the manufacturing cost of the microorganism immobilized carrier and the running cost of an apparatus that uses the microorganism immobilized carrier. [Solution] A microorganism immobilized carrier is characterized by including a carbon component and a resin, having a zeta potential of from &#x2212;25 mV to 0 mV, and containing microorganisms adhered to a surface thereof and/or an interior thereof. The microorganisms are preferably nitrifying bacteria. The carbon component preferably has a particle size of from 1 &#x3bc;m to 1000 &#x3bc;m.

Microorganism immobilized carrier

[Problem] A carrier for retaining anammox bacteria, an anammox bacteria-adhered particle, and a wastewater treatment apparatus are provided that can remarkably reduce the start-up period for obtaining a nitrogen removal speed of 1 kg-N/m/day. [Solution] A carrier for retaining anammox bacteria includes carbon particles. The carbon particles are desirably graphite particles, particularly isotropic graphite particles. The carbon particles desirably have a zeta potential of &#x2212;35 mV to 0 mV and an average particle size of 2 &#x3bc;m to 1000 &#x3bc;m.

Carrier for retaining anammox bacteria for use in wastewater treatment, anammox bacteria-adhered particle, and wastewater treatment apparatus using the carrier

Growing community of inventors

Osaka, Japan

Tomoya Nakazono