The agreement was formed in cooperation with Membrane-Tec, a Japanese manufacturer of membrane filtration units for water treatment.
A small pilot system will be tested in the village of Dagang this June, aiming at full-scale operation sometime during fiscal 2010 (ends March 31, 2011). The system incorporates Teijin’s Multi-stage Activated Biological Process (MSABP) wastewater treatment technology and Membrane-Tec’s membrane filtration technology.
The MSABP system uses biological carriers with high concentrations of microorganisms in multi-stage aeration tanks. Organic excess sludge is eliminated as part of a biological food chain created with the system.
The result is a sludge-free, low-maintenance, energy-saving and low-cost systems. Moreover, the system helps to reduce CO2 emissions that otherwise would have been generated by transporting and incinerating the sludge, the company said.
The city of Yixing began installing drainage pipes from homes last December and plans to complete this preparatory step by late May. Teijin and Membrane-Tec have finished the detailed design of the pilot system.
As part of its Green Chemistry businesses for the creation of environmentally friendly technologies, Teijin is developing systems for wastewater treatment and recycling. Pilot plant studies are underway including testing the MSABP technology in locations around the world.
