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通过反透屏障证明回收水中新出现的污染物的去除信用-一个预测框架

Hongjiao Pang¹, Mayumi Allinson¹, Kathy Northcott²

¹Department of Chemical Engineering, The University of Melbourne, Parkville, Melbourne, VIC 3010, Australia.

|August 11, 2023

概括

反透 (RO) 系统的性能对于新出现的污染物 (CEC) 不同. 本研究验证了CEC的RO日志减少值 (LRV) 信用,建立了回收水中的化学风险管理框架.

科学领域:

环境科学环境科学
水处理技术水处理技术
化学工程是化学工程的重要组成部分.

背景情况:

反透 (RO) 系统的性能与不同的新兴关注污染物 (CEC) 有显著差异.
对于CEC的日志减少值 (LRV) 不能在没有系统验证的情况下在水处理和回收中任意使用.
化学风险管理需要对不同CEC的RO障碍性能有明确的了解.

研究的目的:

通过系统地验证各种CEC类的LRV信贷的RO障碍性能来提出管理化学风险的方法.
开发和验证一个框架来预测RO膜在操作条件下消除广泛的CEC的性能.
评估导电性和生物测试作为RO性能和水毒性指标的适用性.

主要方法:

在一家大型水回收工厂进行了一次性采样活动,跨越五个处理障碍 (过器过,超过,RO,离子交换,化).
进行了系统的六周抽样活动,重点关注RO屏障.
使用GC-MS量化948种微量有机化学品,使用LC-MS/MS量化44种和多基物质 (PFAS) 来确定RO去除信用.

主要成果:

验证了LRV障碍信用框架,以预测在典型运行条件下各种化学品类的聚胺RO膜性能.
作为膜完整性和RO性能的有效替代品,证明了导电性,与透流量和回收率相关.
鉴定了光细菌生物测试作为一种潜在的快速,具有成本效益的方法,用于指示一般化学污染的毒性,因为它的灵敏度和效率.

结论:

该研究提供了一种系统的方法,以验证LRV信用的RO屏障性能,这对于精确的化学风险管理在水回收至关重要.
导电性和特定的操作参数是RO膜完整性和性能的可靠指标.
生物测试方法显示出化学污染水样本中快速毒性评估的前景.

关键词:

新兴关注的污染物搬家贷款搬家贷款搬家贷款搬家贷款逆透是指反透的过程.治疗验证的验证方法水的回收利用水的回收利用

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