About IWAHORI KEISUKE
About 宮城大 食産業学群(環境科学系)
About distributed processing
About water closet wastes disposal plant
About system
About sewage treatment
About plumbing equipment
About water management
About excreta treatment
About technological innovation
About performance evaluation
About sanitation
About sewage treatment system
About septic tank
About Technical change
About septic tank of combined treatment
About water closet wastes disposal plant
About swage water treatment
About integrated water management
About waste water treatment system
About Sewerage engineering and wastewater treatment in general
About Sewage and wastewater treatment facilities
About 次世代
About 汚水処理システム
About 動向
About 浄化槽