https://www.jetro.go.jp/en/eccj/ind_tourism/east_nagasaki_sewage_treatment_plant.html https://www.jetro.go.jp/en/eccj/ind_tourism/east_nagasaki_se... The East

https://www.jetro.go.jp/en/eccj/ind_tourism/east_nagasaki_sewage_treatment_plant.html https://www.jetro.go.jp/en/eccj/ind_tourism/east_nagasaki_se... The East Nagasaki Sewage Treatment Plant "The environmental equipment "METHASAURUS" was installed at the East Nagasaki Sewage Treatment Plant (the total amount of influent sewage water : 10,000㎥/day) in January 2013"