リン サン イオン コウ センタク セイ ムキソウ ジョウ イオン コウカンタイ ヲ モチイタ ハイスイ カラ ノ リン ジョキョ
Phosphorous Removal from Wastewater by Layer Structure Inorganic Ion Exchanger with High Selectivity to Phosphate Anion
KAWAMOTO, Ariumi Tomita Pharmaceutical Co.
OOKUBO, Akira Tomita Pharmaceutical Co.
SUZUKI, Takashi Faculty of Engineering, Yamanashi University
The purpose of this study is to remove phosphorous in wastewater by using layer structure inorganic ion exchanger with high selectivity for phosphate anion(TPEX).
The results obtained are as follows.
1)TPEX showed large phosphate removal of 1.43-2.23mmol·g-1 in phosphorous concentrations of 1-800mgP·l-1. Maximum removal amount of phosphate ions was obtained around pH value of 7.0.
2)The ion selectivity of various anions in wastewater were in the order of CO3>PO4>>SO4>>C1>>NO2>NO3.
3)Residual concentrations of the phosphate ion from rural sewages treated with TPEX were less than 1mg·l-1.
Talking the results obtained into account, TPEX has been expected as a promising inorganic phosphorous adsorbent.
layer structure inorganic ion exchanger
high selectivity to phosphate anion
Journal of Japan Society on Water Environment
ニホン スイカンキョウ ガッカイ
Japan Society on Water Environment
Department of Environmental and Sustainability Sciences, Faculty of Life and Environmental Science