- Environment
- Climate Change
- Activities in Products
- Ecosystems
Toshiba Corporation Social Systems Division
In recent years, sewage treatment plants have faced challenges such as increased construction costs associated with changes in facility scale due to regionalization and collaboration, as well as the need for energy-saving measures (reduction of power consumption) to promote carbon neutrality.
To solve these challenges, we provide Habuki™, a pre-treatment system designed for the OD method*1. Habuki™ reduces the pollutant load flowing into the reaction tank by retaining a large volume of microorganisms on its internal rotating fiber unit, which efficiently removes pollutants from sewage while taking in oxygen from the air. This can enhance the capacity of the OD method reaction tank by approximately 150–190%. As a result, even if the inflow of sewage increases due to changes in facility scale, there is no need to add more reaction tanks, which reduces both construction costs and CO2 emissions. It can also reduce the power consumption required for aeration by approximately 20%.
By enhancing the capacity and enabling energy savings at sewage treatment plants, Habuki™ contributes to solving various challenges, including the construction of sustainable infrastructure, the realization of carbon neutrality, and the conservation of water.
*1 OD method: Oxidation Ditch method. A type of sewage treatment process used in small-scale sewage treatment plants.
*2 BOD: Biochemical oxygen demand. This is the amount of oxygen used when organic matter in water is broken down by microorganisms, and it serves as an indicator of the amount of pollutants in sewage.
