—Verifies Effectiveness of Solution Using Multi-Stage Activated Biological Process—
Teijin Limited announced today that an 18-month pilot project conducted with the Japan Sewage Works Agency (JS) has demonstrated the effectiveness of the sewage-processing system based on Teijin's Multi-Stage Activated Biological Process (MSABP) wastewater treatment technology, including reductions of excess sludge by over 80%, energy consumption by up to 10% and CO2 emissions by up to 15%.

JS is a mainly publicly funded entity that promotes sewage treatment by providing technical support and personnel. The MSABP system uses special biological carriers packed with high concentrations of microorganisms in multi-stage aeration tanks. The resulting food chain enables wastewater treatment with reduced sludge, reduced energy consumption and low maintenance.

The pilot project demonstrated that MSABP-based systems can reduce excess sludge by over 80% compared with conventional treatment methods. In addition, the system can be operated under optimized air supply conditions to the aeration tanks, helping to lower the total energy consumed in sewage treatment by up to 10%, as well as cut CO2 emissions by up to 15%.

The joint pilot project will continue for another year to evaluate its effectiveness in processing raw water before it enters the primary settling pond. The aim is to further reduce total sludge generation, as well as raise energy-consumption cuts to over 20%. Teijin and JS also will evaluate effective methods for incorporating MSABP into existing facilities.

Teijin's goal is to develop wastewater treatment solutions for a variety of global applications, including through incorporation of advanced processing technologies such as MSABP and multi-stage ozone treatment system with hydrogen peroxide. It is hoped that these solutions will contribute to wastewater reuse, energy conservation and reduced emissions of CO2.

The MSABP system has already been used in facilities that need advanced wastewater treatment, including chemical, dyeing and food manufacturing plants in Indonesia and China. Teijin has also participated in a field test of MSABP in the Yixing area of Jiangsu Province, China, where it will be used to provide sewage infrastructure to the local farming community.
MSABP is a registered trademark of Aquarius Technologies Inc.