Gas Utilization and Biogas Production in the Urban Environmental Field (Waste and Sewage Treatment)

Overview

There are an increasing number of cases in which city gas is used as energy to treat waste and sewage water, and conversely, biogas is produced from waste and sewage sludge and used effectively. For example, incineration plants use cogeneration systems for highly efficient power generation. Moreover, methane fermentation facilities using food waste can increase the volume of biogas generated, by the hyper-thermophilic hydrolysis technology “Methasolution” developed by the Daigas Group. Furthermore, sorted and collected food waste can be converted into biogas in a decentralized manner, using the on-site biogasification system “D-Bio Methane” developed by the Daigas Group.

At sewage treatment plants, city gas is used to support combustion in incinerators and can also be used in sludge fuel (carbonization) plants that help reduce greenhouse gas emissions. Additionally, biogas generated by sludge digestion can be utilized for power generation and other purposes.

City gas integrated system at incineration plants【PDF 272KB】
City gas integrated system at sewage treatment plants【PDF 307KB】
Click here for on-site biogasification systems.