GSO ASTM D4472:2016由GSO 发布于 2016-09-27。
GSO ASTM D4472:2016在国际标准分类中归属于: 71.120.99 其他化工设备。
GSO ASTM D4472:2016 反渗透和纳滤系统记录保存标准指南的最新版本是哪一版?
最新版本是 GSO ASTM D4472:2016 。
1.1 This guide covers procedures for well-defined recordkeeping of reverse osmosis (RO) and nanofiltration (NF) systems. 1.2 This guide includes a start-up report, recordkeeping of RO and NF operating data, recordkeeping of pretreatment operating data, and a maintenance log. 1.3 This guide is applicable to waters including brackish waters and seawaters but is not necessarily applicable to wastewaters. 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。...
3.6 纳滤系统 焦化废水成分较复杂,其进水COD绝大组分的分子量介于150~100000,因此要求纳滤膜具有较强的有机污染耐受能力。纳滤系统共设2套,纳滤系统进水按照70m3/h设计,采用GE膜共计408支,为提高整个系统的回收率,本系统采用四段流程结构设计,即“一级三段+浓水纳滤”的排列形式。每套纳滤系统前都单独设置保安过滤器,过滤精度5μm。...
当原水中的有机物含量过高时,还可投加粉末活性炭预处理,以增加整个系统的总有机碳和三卤甲烷形成潜力(THMFP)的去除率。表1反渗透和纳滤对进水水质要求项目要求值PH2~11浊度(NTU)...
对于超滤而言,膜的截留特性是以对标准有机物的截留分子量来表征,通常截留分子量范围在1000-300000,故超滤膜能对大分子有机物(如蛋白质、细菌)、胶体、悬浮固体等进行分离,广泛应用于料液的澄清、大分子有机物的分离纯化、除热源。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。...
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