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Nitrosamines in pilot-scale and full-scale wastewater treatment plants with ozonation

机译：臭氧化处理的中试和大型废水处理厂中的亚硝胺

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摘要

Ozone-based treatment trains offer a sustainable option for potable reuse applications, but nitrosamine formation during ozonation poses a challenge for municipalities seeking to avoid reverse osmosis and high-dose ultraviolet (UV) irradiation. Six nitrosamines were monitored in full-scale and pilot-scale wastewater treatment trains. The primary focus was on eight treatment trains employing zonation of secondary or tertiary wastewater effluents, but two treatment trains with chlorination or UV disinfection of tertiary wastewater effluent and another with full advanced treatment (i.e., reverse osmosis and advanced oxidation) were also included for comparison. N-nitrosodimethylamine (NDMA) and N-nitrosomorpholine (NMOR) were the most prevalent nitrosamines in untreated (up to 89 ng/L and 67 ng/L, respectively) and treated wastewater. N-nitrosomethylethylamine (NMEA) and N-nitrosodiethylamine (NDEA) were detected at one facility each, while N-nitrosodipropylamine (NDPrA) and N-nitrosodibutylamine (NDBA) were less than their method reporting limits (MRLs) in all samples. Ozone-induced NDMA formation ranging from <10 to 143 ng/L was observed at all but one site, but the reasons for the variation in formation remain unclear. Activated sludge, biological activated carbon (BAC), and UV photolysis were effective for NDMA mitigation. NMOR was also removed with activated sludge but did not form during ozonation. (C) 2014 Elsevier Ltd. All rights reserved.
机译：基于臭氧的处理系列为可重复使用的饮用水提供了可持续的选择，但是臭氧化过程中亚硝胺的形成对市政当局来说是一个挑战，这些政府希望避免反渗透和大剂量紫外线（UV）辐射。在大规模和中试规模的废水处理系统中监测了六种亚硝胺。主要重点是对二级或三级废水进行分区的8个处理系列，但是还包括了对三级废水进行氯化或UV消毒的两个处理系列，以及另一个经过全面深度处理（即反渗透和高级氧化）的处理系列。 。 N-亚硝基二甲胺（NDMA）和N-亚硝基吗啉（NMOR）是未处理废水（分别高达89 ng / L和67 ng / L）和处理废水中最普遍的亚硝胺。在一处设施中分别检测到N-亚硝基甲基乙胺（NMEA）和N-亚硝基二乙胺（NDEA），而所有样品中N-亚硝基二丙胺（NDPrA）和N-亚硝基二丁胺（NDBA）均小于其方法报告限量（MRL）。臭氧诱导的NDMA的形成范围在<10到143 ng / L之间，除了一个站点外，其他所有站点都可观察到，但是形成变化的原因仍然不清楚。活性污泥，生物活性炭（BAC）和紫外线光解法可有效缓解NDMA。 NMOR也用活性污泥去除，但在臭氧化过程中未形成。 （C）2014 Elsevier Ltd.保留所有权利。

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  • 来源
    《Water Research》 |2015年第1期|251-261|共11页
  • 作者

    Gerrity Daniel; Pisarenko Aleksey N.; Marti Erica; Trenholm Rebecca A.; Gerringer Fred; Reungoat Julien; Dickenson Eric;

  • 作者单位

    Southern Nevada Water Author, Appl Res & Dev Ctr, River Mt Water Treatment Facil, Las Vegas, NV 89193 USA|Trussell Technol Inc, Solana Beach, CA 92075 USA|Univ Nevada, Dept Civil & Environm Engn & Construct, Las Vegas, NV 89154 USA;

    Southern Nevada Water Author, Appl Res & Dev Ctr, River Mt Water Treatment Facil, Las Vegas, NV 89193 USA|Trussell Technol Inc, Solana Beach, CA 92075 USA;

    Southern Nevada Water Author, Appl Res & Dev Ctr, River Mt Water Treatment Facil, Las Vegas, NV 89193 USA|Univ Nevada, Dept Civil & Environm Engn & Construct, Las Vegas, NV 89154 USA;

    Southern Nevada Water Author, Appl Res & Dev Ctr, River Mt Water Treatment Facil, Las Vegas, NV 89193 USA;

    Trussell Technol Inc, Solana Beach, CA 92075 USA;

    Univ Queensland, Adv Water Management Ctr, St Lucia, Qld 4072, Australia;

    Southern Nevada Water Author, Appl Res & Dev Ctr, River Mt Water Treatment Facil, Las Vegas, NV 89193 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Wastewater; Ozone; Nitrosamine; N-nitrosodimethylamine (NDMA); Potable reuse;

    机译：废水;臭氧;亚硝胺;N-亚硝基二甲胺（NDMA）;可重复使用;

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