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Article
Affiliation(s)

1. Yokkaichi University, Research Laboratory on Environmental Technology, Kayo-cho 1200, Yokkaichi, Mie 512- 8512, Japan
2. Mie Chuo Kaihatsu Co., Ltd, Hachiya 4713, Yono, Iga, Mie 518-1152, Japan
3. Mie prefectural Environmental Conservation Agency, Ueno 3258, Kawage, Tsu, Mie 510-0304, Japan

ABSTRACT

Large amounts of sludge has accumulated in the Inner Bay, which is one factor of environmental deterioration. We found that this sludge has an effect of absorbing low concentrations of phosphorus in water. For the purpose of development of water treatment agents and effective utilization of the sludge, phosphorus removal performance was investigated using wet sludge collected in Ise-Bay. A small amount of sludge was added to the test water having a phosphorus concentration of about 1~2 mg/L, and the phosphorus concentration of the filtrate after stirring and filtration was measured. Depending on the sludge conditions, it showed 30% to 80% of phosphorus removal performance. We investigated the relationship between the physical properties of the sludge and the removal performance.

KEYWORDS

Bay sediment, phosphorus removal, water treatment.

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