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Behaviour and fate of nine recycled water trace organics during managed aquifer recharge in an aerobic aquifer

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Title: Behaviour and fate of nine recycled water trace organics during managed aquifer recharge in an aerobic aquifer
Authors: Patterson, B.M.1,2 bradley.patterson@csiro.au, Shackleton, M.1, Furness, A.J.1, Bekele, E.1, Pearce, J.1,2, Linge, K.L.3, Busetti, F.3, Spadek, T.4, Toze, S.5
Source: Journal of Contaminant Hydrology. Mar2011, Vol. 122 Issue 1-4, p53-62. 10p.
Subjects: Groundwater recharge, Aerobic bacteria, Groundwater microbiology, Groundwater purification, Dissolved organic matter, Biodegradation, Groundwater flow
Abstract: Abstract: The fate of nine trace organic compounds was evaluated during a 12month large-scale laboratory column experiment. The columns were packed with aquifer sediment and evaluated under natural aerobic and artificial anaerobic geochemical conditions, to assess the potential for natural attenuation of these compounds during aquifer passage associated with managed aquifer recharge (MAR). The nine trace organic compounds were bisphenol A (BPA), 17β-estradiol (E2), 17α-ethynylestradiol (EE2), N-nitrosodimethylamine (NDMA), N-nitrosomorpholine (NMOR), carbamazepine, oxazepam, iohexol and iodipamide. In the low organic carbon content Spearwood sediment, all trace organics were non-retarded with retardation coefficients between 1.0 and 1.2, indicating that these compounds would travel at near groundwater velocities within the aquifer. The natural aerobic geochemical conditions provided a suitable environment for the rapid degradation for BPA, E2, iohexol (half life <1day). Lag-times for the start of degradation of these compounds ranged from <15 to 30days. While iodipamide was persistent under aerobic conditions, artificial reductive geochemical conditions promoted via the addition of ethanol, resulted in rapid degradation (half life <1days). Pharmaceuticals (carbamazepine and oxazepam) and disinfection by-products (NDMA and NMOR) did not degrade under either aerobic or anaerobic aquifer geochemical conditions (half life >50days). Field-based validation experiments with carbamazepine and oxazepam also showed no degradation. If persistent trace organics are present in recycled waters at concentrations in excess of their intended use, natural attenuation during aquifer passage alone may not result in extracted water meeting regulatory requirements. Additional pre treatment of the recycled water would therefore be required. [Copyright &y& Elsevier]
Copyright of Journal of Contaminant Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Behaviour and fate of nine recycled water trace organics during managed aquifer recharge in an aerobic aquifer
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Patterson%2C+B%2EM%2E%22&quot;&gt;Patterson, B.M.&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;i&gt; bradley.patterson@csiro.au&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Shackleton%2C+M%2E%22&quot;&gt;Shackleton, M.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Furness%2C+A%2EJ%2E%22&quot;&gt;Furness, A.J.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Bekele%2C+E%2E%22&quot;&gt;Bekele, E.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Pearce%2C+J%2E%22&quot;&gt;Pearce, J.&lt;/searchLink&gt;&lt;relatesTo&gt;1,2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Linge%2C+K%2EL%2E%22&quot;&gt;Linge, K.L.&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Busetti%2C+F%2E%22&quot;&gt;Busetti, F.&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Spadek%2C+T%2E%22&quot;&gt;Spadek, T.&lt;/searchLink&gt;&lt;relatesTo&gt;4&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Toze%2C+S%2E%22&quot;&gt;Toze, S.&lt;/searchLink&gt;&lt;relatesTo&gt;5&lt;/relatesTo&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Journal+of+Contaminant+Hydrology%22&quot;&gt;Journal of Contaminant Hydrology&lt;/searchLink&gt;. Mar2011, Vol. 122 Issue 1-4, p53-62. 10p.
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  Label: Abstract
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  Data: Abstract: The fate of nine trace organic compounds was evaluated during a 12month large-scale laboratory column experiment. The columns were packed with aquifer sediment and evaluated under natural aerobic and artificial anaerobic geochemical conditions, to assess the potential for natural attenuation of these compounds during aquifer passage associated with managed aquifer recharge (MAR). The nine trace organic compounds were bisphenol A (BPA), 17β-estradiol (E2), 17α-ethynylestradiol (EE2), N-nitrosodimethylamine (NDMA), N-nitrosomorpholine (NMOR), carbamazepine, oxazepam, iohexol and iodipamide. In the low organic carbon content Spearwood sediment, all trace organics were non-retarded with retardation coefficients between 1.0 and 1.2, indicating that these compounds would travel at near groundwater velocities within the aquifer. The natural aerobic geochemical conditions provided a suitable environment for the rapid degradation for BPA, E2, iohexol (half life &lt;1day). Lag-times for the start of degradation of these compounds ranged from &lt;15 to 30days. While iodipamide was persistent under aerobic conditions, artificial reductive geochemical conditions promoted via the addition of ethanol, resulted in rapid degradation (half life &lt;1days). Pharmaceuticals (carbamazepine and oxazepam) and disinfection by-products (NDMA and NMOR) did not degrade under either aerobic or anaerobic aquifer geochemical conditions (half life &gt;50days). Field-based validation experiments with carbamazepine and oxazepam also showed no degradation. If persistent trace organics are present in recycled waters at concentrations in excess of their intended use, natural attenuation during aquifer passage alone may not result in extracted water meeting regulatory requirements. Additional pre treatment of the recycled water would therefore be required. [Copyright &amp;y&amp; Elsevier]
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  Data: &lt;i&gt;Copyright of Journal of Contaminant Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jconhyd.2010.11.003
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        Text: English
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        PageCount: 10
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    Subjects:
      – SubjectFull: Groundwater recharge
        Type: general
      – SubjectFull: Aerobic bacteria
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      – SubjectFull: Groundwater microbiology
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      – SubjectFull: Groundwater purification
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      – SubjectFull: Dissolved organic matter
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      – SubjectFull: Biodegradation
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      – SubjectFull: Groundwater flow
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              Text: Mar2011
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