Search condition of purification materials and their proper processing for the rapid infiltration method |
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引用本文: | Tatsuhide Hamasaki Yoko Fujikawa Daisuke Yoneda Masataka Sugahara. Search condition of purification materials and their proper processing for the rapid infiltration method[J]. 中国地球化学学报, 2006, 25(B08): 114-115 |
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作者姓名: | Tatsuhide Hamasaki Yoko Fujikawa Daisuke Yoneda Masataka Sugahara |
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作者单位: | [1]Department of Urban Envzronment, Faculty of Human Environment, Osaka Sangyo University, Japan [2]Research Reactor Institute, Kyoto University, Japan |
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摘 要: | The purpose of this study is to do an experiment in finding conditions of search purification materials and the way of their proper processing for the rapid infiltration method. It seems that this result makes an index of further selection of a purification material. This experiment is to conduct sorption tests of fulvic acid and phosphoric acid regarding Kanuma-soil (volcanic ash soil) with iron oxide and aluminum oxide, to fred relationship between sorption coefficients and heating temperature, concentrations of iron and aluminum. The sorption experiment on heated and unheated materials was conducted at 25℃ in a dark place at the solid to liquid ratio of 1 : 2.5. The liquid is simulated river water. According to the result of the study, a deference was found of the best heating temperature between sorption coefficients of fulvic acid and phosphoric acid. The peak of a sorption coefficient of fulvic acid is 800℃, however the peak of a sorption coefficient of phosphoric acid is 400℃. In the case of fulvic acid, it is high sorption coefficients when Kanuma-soil with aluminum oxide is unheated and heated as 400℃. However, sorption coefficients when Kanuma-soil with iron oxide is not conspicuously different when heated, and coefficients are descended gradually more than 600℃. Sorption coefficients of unheated Kanuma-soil are descended when adding iron oxide. When heating temperature is higher, pH of water is higher. High pH causes to descend sorption coefficient, however it is remarkable result that sorption coefficient is ascended at 800℃. In the case of phosphoric acid, it is high sorption coefficient when Kanuma-soil is heated at 400℃, and Kanuma-soil with aluminum oxide is heated between 200℃ and 400℃. Sorption coefficients of Kanuma-soil with iron oxide are the highest when unheated, but sorption coefficients of Kanuma-soil with iron oxide are the highest when heated.
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关 键 词: | 磷酸 渗透作用 纯化方法 热处理 土壤化学 |
Search condition of purification materials and their proper processing for the rapid infiltration method |
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Abstract: | |
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Keywords: | fulvic acid phosphoric acid rapid infiltration method purification material heat processing |
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