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- Suzuki Yoshitake
- Department of Industrial Chemistry, Meiji University
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- Takeuchi Yasushi
- Department of Industrial Chemistry, Meiji University
書誌事項
- タイトル別名
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- Uptake of a Few Divalent Heavy-metal Ion Species from Their Aqueous Solutions by Coral Sand Heat-treated at Various Temperatures.
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抄録
Mechanism and equilibrium relationships for the uptake of Cd2+, Cu2+ and Pb2+ by coral sand from their nitrate aqueous solutions were studied.<BR>The maximum amounts of Pb2+ and Cd2+ uptaken by coral sand dried at 403 K were about 1.3 and 0.9 mol·kg–1, respectively. That of Cu2+ was only about 1/100 that of Pb22+ at pH = 6.1–5.5. Equilibrium relationships between the concentrations of those ionic species and the amounts uptaken were expressed by either the Langmuir or the Freundlich isotherm.<BR>The amounts of those ions uptaken and the physical properties of the coral sand varied with the maximum temperature during treatment. For example, the B.E.T. specific surface area decreased with increasing heat-treatment temperature. This is due to the change in the crystallographic structure of calcium carbonate, which is the main component of the coral sand, from aragonite to calcite.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 27 (2), 165-170, 1994
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679543054208
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- NII論文ID
- 130000021350
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- NII書誌ID
- AA00709658
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- COI
- 1:CAS:528:DyaK2cXjtVKqtr0%3D
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- ISSN
- 18811299
- 00219592
- http://id.crossref.org/issn/00219592
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可