WEKO3
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Adsorption mechanisms of high-levels of ammonium onto natural and NaCl-modified zeolites
http://hdl.handle.net/2241/118622
http://hdl.handle.net/2241/1186221be5123c-373c-4d5e-b040-14a779b16fd6
名前 / ファイル | ライセンス | アクション |
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SPT_103.pdf (775.4 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2013-03-13 | |||||
タイトル | ||||||
タイトル | Adsorption mechanisms of high-levels of ammonium onto natural and NaCl-modified zeolites | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
著者 |
Lin, Lin
× Lin, Lin× Lei, Zhongfang× Wang, Li× Liu, Xiang× Zhang, Yi× Wan, Chunli× Lee, Duu-Jong× Tay, Joo Hwa |
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著者別名 |
雷, 中方
× 雷, 中方 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Zeolites, microporous aluminosilicate minerals, have high affinity to ammonium in water. This study explored the mechanisms of ammonium adsorption onto natural zeolite and NaCl-modified counterpart under different ammonium levels (10–4000 mg-N/L) and initial pH 3.4–11.1. Ion exchange dominated the ammonium adsorption process near neutral pH, with the order of exchange selectivity following Na+ > Ca2+ > K+ > Mg2+. At high ammonium levels, Ca2+ exceeded Na+ as the dominant ions for ammonium adsorption. Conversely, in strong alkaline solutions, molecular adsorption suppressed ion exchange in ammonium adsorption. NaCl modification effectively increased ammonium adsorption capacity by increasing the Na contents in zeolite and by modifying the surface morphology to enhance film mass transfer rate. The modified zeolite presents a potential adsorbent to reduce ammonium concentration in landfill leachates, livestock wastewaters or effluents from anaerobic digestion tanks of livestock manure. | |||||
書誌情報 |
Separation and purification technology 巻 103, p. 15-20, 発行日 2013-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1383-5866 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11136087 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.seppur.2012.10.005 | |||||
権利 | ||||||
権利情報 | © 2012 Elsevier B.V. NOTICE: this is the author’s version of a work that was accepted for publication in Separation and purification technology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Separation and purification technology, Vol103, 2013, DOI:10.1016/j.seppur.2012.10.005. |
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著者版フラグ | ||||||
値 | author | |||||
出版者 | ||||||
出版者 | Elsevier B.V. | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/118622 | |||||
識別子タイプ | HDL |