| 腐植酸作为天然有机物(NOM)的主要类型对环糊精聚氨酯去除水中异味的影响 |
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| 引用本文： | BB Mamba,RW Krause,TJ Malefetse,SP Sithole,TI Nkambule,李静. 腐植酸作为天然有机物(NOM)的主要类型对环糊精聚氨酯去除水中异味的影响[J]. 腐植酸, 2010, 0(5) |
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| 作者姓名： | BB Mamba RW Krause TJ Malefetse SP Sithole TI Nkambule 李静 |
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| 作者单位： | 南非约翰内斯堡大学化工系 中国农业科学院研究生院 |
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| 摘 要： | 目前,水处理机构普遍认为,天然有机物会妨碍活性炭的吸附位点与异味化合物结合,进而导致对甲萘烷醇和2-甲基异茨醇的清除效率下降。腐植酸也被认为具有相同的作用。对于城市水处理系统来说,饮用水中异味化合物如甲萘烷醇和2-甲基异茨醇的清除至关重要。已证实,环糊精聚氨酯可清除水中有机污染物,但不会显著降低天然有机物的含量。我们希望确定在有天然有机物存在的条件下,该聚合物是否能够有选择地去除甲萘烷醇和2-甲基异茨醇。本研究以腐植酸为天然有机物代表,因腐植酸约占天然有机物的70%。研究表明,不同浓度腐植酸的存在不会影响甲萘烷醇和2-甲基异茨醇的清除,使用环糊精聚合物,90%的异味化合物被去除。同时,紫外分析表明只有少量的腐植酸(3%～20%)被去除。
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| 关 键 词： | 环糊精聚合物 甲萘烷醇 2-甲基异茨醇 腐植酸 |
Humic Acid as a Model for Natural Organic Matter (NOM) in the Removal of Odorants from Water by Cyclodextrin Polyurethanes |
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| BB Mamba,RW Krause,TJ Malefetse,SP Sithole,TI Nkambule,Li Jing. Humic Acid as a Model for Natural Organic Matter (NOM) in the Removal of Odorants from Water by Cyclodextrin Polyurethanes[J]. , 2010, 0(5) |
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| Authors: | BB Mamba RW Krause TJ Malefetse SP Sithole TI Nkambule Li Jing |
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| Affiliation: | 2 translate(1 Department of Chemical Technology; University of Johannesburg; Johannesburg; 2001 2 Graduate School of Chinese Academy of Agricultural Sciences; Beijing; 100080); |
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| Abstract: | Current practices in some water-treatment facilities have reported that natural organic matter(NOM) blocks the adsorption sites of activated carbon resulting in lower geosmin and 2-methylisoborneol(2-MIB) removal. Humic acid has been reported to compete with geosmin and 2-MIB removal in the same way. The removal of odour chemicals such as geosmin and 2-MIB is important for potable-water treatment by water supply companies and municipalities. We have previously demonstrated that cyclodextrin polyurethanes ar... |
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| Keywords: | cyclodextrin polymers geosmin 2-methylisoborneol（2-MIB） humic acids |
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