Rejection of pharmaceuticals and personal care products (PPCPs) and endocrine disrupting chemicals (EDCs) by low pressure reverse osmosis membranes.
Rejection of pharmaceuticals and personal care products (PPCPs) and endocrine disrupting chemicals (EDCs) by low pressure reverse osmosis membranes.
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DOI：
10.2166/wst.2008.607
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发表时间：
2008-07
期刊：
影响因子：
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通讯作者：
Hiroaki Ozaki;Norihito Ikejima;Y. Shimizu;K. Fukami;S. Taniguchi;R. Takanami;R. Giri;Saburo Matsui-Saburo
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文献类型：
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作者：
Hiroaki Ozaki;Norihito Ikejima;Y. Shimizu;K. Fukami;S. Taniguchi;R. Takanami;R. Giri;Saburo Matsui-Saburo
研究了两种聚酰胺低压反渗透膜（LPRO）对某些药物和个人护理品（PPCPs）以及内分泌干扰物（EDCs）的截留特性。料液pH值没有影响拒绝未解离的溶质，这是最有可能的吸附，尺寸排阻和扩散同时进行。分子排阻可能占主导地位，尤其是对于致密膜（UTC-70 U）。具有低偶极矩（0.5.静电排斥对于解离的溶质的排斥起关键作用，特别是通过松散的LPRO膜。因此，评估在所需pH值下的解离度可以是了解聚酰胺膜的截留机制的关键步骤。
This paper aims to elucidate retention characteristics of some pharmaceuticals and personal care products (PPCPs), and endocrine disrupting chemicals (EDCs), by two polyamide low pressure reverse osmosis (LPRO) membranes. Feed solution pH did not have an influence on rejections of undissociated solutes, which was most likely governed by adsorption, size exclusion and diffusion simultaneously. Size exclusion was presumably dominant, especially with tight membranes (UTC-70U). Rejections of the solutes with low dipole moment (0.5. Electrostatic repulsion played a key role for rejection of dissociated solutes, especially by loose LPRO membranes. Therefore, assessing the dissociation degree at desired pH values can be a key step to obtain an insight of rejection mechanisms by polyamide membranes.