GSO ASTM D4195:2016由GSO 发布于 2016-09-27。
GSO ASTM D4195:2016在国际标准分类中归属于: 13.060.50 水的化学物质检验。
GSO ASTM D4195:2016 反渗透和纳滤应用水分析标准指南的最新版本是哪一版?
最新版本是 GSO ASTM D4195:2016 。
1.1 This guide covers the analyses that should be performed on any given water sample if reverse osmosis (RO) or nanofiltration (NF) application is being considered. 1.2 This guide is applicable to waters including brackish waters and seawaters but is not necessarily applicable to waste waters. 1.3 This is a guide only and should not be construed as a delineation of all ions known to exist in waters. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
众所周知,工业废水水量较大,普通的纳滤和卷式反渗透处理后,反渗透浓水水量依然较大,直接蒸发投资会大大增加,而DTRO工艺的出现刚好解决了这一难题。...
基于纳滤分离技术的优越特性,其在制药、生物化工、 食品工业等诸多领域显示出广阔的应用前景。 对于纳滤而言,膜的截留特性是以对标准NaCl、MgSO4、CaCl2溶液的截留率来表征,通常截留率范围在60~90%,相应截留分子量范围在100~1000,故纳滤膜能对小分子有机物等与水、无机盐进行分离,实现脱盐与浓缩的同时进行。 ...
纳滤可在低压力下运行,与反渗透相比,可以节约能耗40—50%。出水的优良水质、对水中杂质的选择性脱除作用及操作压力低将使纳滤在优质饮用水生产中愈来愈受重视。从设备成本和运行成本来看,由于反渗透膜的操作压力高、水通量比纳滤膜小,因而,膜技术应用于饮用水处理的成本由高到低的次序是:反渗透、纳滤、超滤、微滤。卷式芳香族聚酰胺类复合纳滤膜和复合反渗透膜对进水水质的要求是一样的(表1)。...
纳滤(NF) 是介于超滤与反渗透之间的一种膜分离技术, 其截留分子量在80-1000的范围内,孔径为几纳米,因此称纳滤。基于纳滤分离技术的优越特性,其在制药、生物化工、 食品工业等诸多领域显示出广阔的应用前景。...
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