TOKYO, Japan, Oct. 7, 2011 -- Teijin Limited has donated a highly compact, efficient and energy-saving municipal sewage-processing system to the city of Kesennuma, Miyagi Prefecture as a temporary replacement for the sewage treatment system devastated by the March 11 earthquake and tsunami.
The system is based on the company's Multi-Stage Activated Biological Process (MSABP) technology. This is the first time that Teijin's MSABP wastewater treatment technology has been adopted for sewage treatment.
In the course of ongoing efforts by the Japan Sewage Works Agency (JS), a special public organization funded by local governments, to support the recovery of sewage-treatment facilities in the earthquake-hit areas, Teijin's MSABP-based system was selected because of several advantages, including:
* The entire system fits within a 40-foot container for easy transportation.
* Start-up simply requires that tubing and wiring be connected on site.
* Efficient processing capacity handles up to 75 tons of sewage per day.
* Remaining sludge is limited, resulting in low maintenance and energy savings.
In February, Teijin and JSWA completed a two-and-a-half-year pilot project to verify the effectiveness of the system at JS's Research & Technology Development Experimental Center in Mooka, Tochigi Prefecture.
Teijin said it now looks forward to the system proving its effectiveness on a practical basis, in support of the disaster-struck area's overall recovery.
Teijin's MSABP system utilizes special biological carriers packed with high concentrations of microorganisms in multistage aeration tanks. The microorganisms vary from tank to tank to form a food chain that decomposes even highly concentrated and persistent effluent. The system significantly suppresses the generation of excess sludge, thereby eliminating the need for sludge disposal. The result is a low-maintenance, cost-effective solution that reduces energy consumption.
Teijin's highly practical MSABP system currently is being used for wastewater treatment in chemical, dyeing and food manufacturing plants in Indonesia and China. It has also been selected for wastewater treatment by a textile factory in Angola. Teijin is continuing to broaden its range of highly effective and environmentally friendly wastewater treatment solutions for applications worldwide.
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