Eutrophication of Lake Koyama Pond, Tottori Prefecture 1999.11.15

They are looking for a water purification technology from a private company because the eutrophication of the large pond in Japan in Tottori City and Lake Koyama Pond is advanced. We have established a review committee by experts and have selected about five companies and have the public test from June to November, 2000. We are looking for a technology to purify water quality by preventing the occurrence of aoko, improving the bottom quality accumulated by sludge, and purifying the inflow river. The prospect of practical application is high, the environmental load is low, and the cost-effective technology is demanded.