Optimized removal of dissolved organic carbon and trace organic contaminants during combined ozonation and artificial groundwater recharge
Pilot scale experiments using an 8 g/h ozonation unit and a 1.4 m2 slow sand filter have demonstrated that the combination of ozonation and artificial groundwater recharge is suitable for efficient reduction of bulk and trace organics. The biodegradation of dissolved organic carbon (DOC) in the slow...
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Veröffentlicht in: | Water research (Oxford) 2012-11, Vol.46 (18), p.6059-6068 |
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description | Pilot scale experiments using an 8 g/h ozonation unit and a 1.4 m2 slow sand filter have demonstrated that the combination of ozonation and artificial groundwater recharge is suitable for efficient reduction of bulk and trace organics. The biodegradation of dissolved organic carbon (DOC) in the slow sand filter was enhanced from 22% without pre-treatment to 34% by pre-ozonation. In addition, realistic surface water concentrations of most investigated trace organic compounds (TrOCs) including carbamazepine, sulfamethoxazole, phenazone and metoprolol were reduced below the limits of quantification. Only a few TrOCs, e.g. primidone and benzotriazole, were not efficiently removed in both treatment steps and could be detected regularly in the filter effluent. For these compounds, enhanced treatment, such as advanced oxidation processes, needs to be considered. Testing for genotoxicity and cytotoxicity did not reveal any systematic adverse effects for human health. The formation of the by-product bromate from bromide was below the limit of the German drinking water directive of 10 μg/L. No removal of bromate was observed in the aerobic slow sand filter. Additional experiments with sand columns showed that operating a preceding bank filtration step to reduce DOC can reduce oxidant demand by approximately 20%.
[Display omitted]
► Pilot studies assessing the combination of ozonation and groundwater recharge. ► Efficient reduction of most trace organic compounds. ► Ozonation enhances biodegradation of DOC during groundwater recharge. ► Toxicity testing showed no adverse effect regarding human health. ► A preceding bank filtration reduces ozone demand for trace organic compound removal. |
doi_str_mv | 10.1016/j.watres.2012.09.001 |
format | Article |
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[Display omitted]
► Pilot studies assessing the combination of ozonation and groundwater recharge. ► Efficient reduction of most trace organic compounds. ► Ozonation enhances biodegradation of DOC during groundwater recharge. ► Toxicity testing showed no adverse effect regarding human health. ► A preceding bank filtration reduces ozone demand for trace organic compound removal.</description><identifier>ISSN: 0043-1354</identifier><identifier>EISSN: 1879-2448</identifier><identifier>DOI: 10.1016/j.watres.2012.09.001</identifier><identifier>PMID: 23014565</identifier><identifier>CODEN: WATRAG</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>adverse effects ; antipyrine ; Antipyrine - chemistry ; Applied sciences ; biodegradation ; Bromates ; Byproducts ; Carbamazepine - chemistry ; Carbon ; Carbon - chemistry ; cytotoxicity ; Dissolution ; Dissolved organic carbon ; drinking water ; Exact sciences and technology ; Filtration ; genotoxicity ; Groundwater ; Groundwater - chemistry ; Groundwater recharge ; human health ; Metoprolol - chemistry ; Organic Chemicals - chemistry ; Oxidants ; oxidation ; Ozonation ; Ozone - chemistry ; Pollution ; pretreatment ; Primidone - chemistry ; Sand ; sulfamethoxazole ; Sulfamethoxazole - chemistry ; Surface water ; Trace organic compounds ; Triazoles - chemistry ; Waste Disposal, Fluid - methods ; Water Pollutants, Chemical - chemistry ; Water Purification - methods ; Water treatment and pollution</subject><ispartof>Water research (Oxford), 2012-11, Vol.46 (18), p.6059-6068</ispartof><rights>2012 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2012 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c548t-3805a7d7b4221060623a2ff806f54fc1ba67a87edbd59599ed2ca1d2d988b9e33</citedby><cites>FETCH-LOGICAL-c548t-3805a7d7b4221060623a2ff806f54fc1ba67a87edbd59599ed2ca1d2d988b9e33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.watres.2012.09.001$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26471531$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23014565$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hübner, U.</creatorcontrib><creatorcontrib>Miehe, U.</creatorcontrib><creatorcontrib>Jekel, M.</creatorcontrib><title>Optimized removal of dissolved organic carbon and trace organic contaminants during combined ozonation and artificial groundwater recharge</title><title>Water research (Oxford)</title><addtitle>Water Res</addtitle><description>Pilot scale experiments using an 8 g/h ozonation unit and a 1.4 m2 slow sand filter have demonstrated that the combination of ozonation and artificial groundwater recharge is suitable for efficient reduction of bulk and trace organics. The biodegradation of dissolved organic carbon (DOC) in the slow sand filter was enhanced from 22% without pre-treatment to 34% by pre-ozonation. In addition, realistic surface water concentrations of most investigated trace organic compounds (TrOCs) including carbamazepine, sulfamethoxazole, phenazone and metoprolol were reduced below the limits of quantification. Only a few TrOCs, e.g. primidone and benzotriazole, were not efficiently removed in both treatment steps and could be detected regularly in the filter effluent. For these compounds, enhanced treatment, such as advanced oxidation processes, needs to be considered. Testing for genotoxicity and cytotoxicity did not reveal any systematic adverse effects for human health. The formation of the by-product bromate from bromide was below the limit of the German drinking water directive of 10 μg/L. No removal of bromate was observed in the aerobic slow sand filter. Additional experiments with sand columns showed that operating a preceding bank filtration step to reduce DOC can reduce oxidant demand by approximately 20%.
[Display omitted]
► Pilot studies assessing the combination of ozonation and groundwater recharge. ► Efficient reduction of most trace organic compounds. ► Ozonation enhances biodegradation of DOC during groundwater recharge. ► Toxicity testing showed no adverse effect regarding human health. ► A preceding bank filtration reduces ozone demand for trace organic compound removal.</description><subject>adverse effects</subject><subject>antipyrine</subject><subject>Antipyrine - chemistry</subject><subject>Applied sciences</subject><subject>biodegradation</subject><subject>Bromates</subject><subject>Byproducts</subject><subject>Carbamazepine - chemistry</subject><subject>Carbon</subject><subject>Carbon - chemistry</subject><subject>cytotoxicity</subject><subject>Dissolution</subject><subject>Dissolved organic carbon</subject><subject>drinking water</subject><subject>Exact sciences and technology</subject><subject>Filtration</subject><subject>genotoxicity</subject><subject>Groundwater</subject><subject>Groundwater - chemistry</subject><subject>Groundwater recharge</subject><subject>human health</subject><subject>Metoprolol - chemistry</subject><subject>Organic Chemicals - chemistry</subject><subject>Oxidants</subject><subject>oxidation</subject><subject>Ozonation</subject><subject>Ozone - chemistry</subject><subject>Pollution</subject><subject>pretreatment</subject><subject>Primidone - chemistry</subject><subject>Sand</subject><subject>sulfamethoxazole</subject><subject>Sulfamethoxazole - chemistry</subject><subject>Surface water</subject><subject>Trace organic compounds</subject><subject>Triazoles - chemistry</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Purification - methods</subject><subject>Water treatment and pollution</subject><issn>0043-1354</issn><issn>1879-2448</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFks9u1DAQhyMEokvhDRDkgsQlwX-T-IKEKgpIlXqAnq2J7QSvEnuxnUX0EXjqOmShN3qyNP5mfmN9LoqXGNUY4ebdvv4JKZhYE4RJjUSNEH5U7HDXioow1j0udggxWmHK2VnxLMY9QogQKp4WZ4QizHjDd8Xv60Oys701ugxm9keYSj-U2sbop2Mu-jCCs6pUEHrvSnC6TAGUub_wLsFsHbgUS70E68Zcm3vr1u5b7yDZUyOEZAerbM4Yg1-czg8wIeeq7xBG87x4MsAUzYvTeV7cXH78dvG5urr-9OXiw1WlOOtSRTvEodVtzwjBqEENoUCGoUPNwNmgcA9NC11rdK-54EIYTRRgTbToul4YSs-Lt9vcQ_A_FhOTnG1UZprAGb9EiRuOGWoobx9GMaYEt1nAwygSnPG8z7oA21AVfIzBDPIQ7AzhV4bk6lbu5eZWrm4lEjK7zW2vTglLPxv9r-mvzAy8OQEQFUxDAKdsvOca1mJO10GvN24AL2EMmbn5mpN4_iBIkD9R7zfCZA9Ha4KMyhqnjLbZVpLa2__vegfWwc96</recordid><startdate>20121115</startdate><enddate>20121115</enddate><creator>Hübner, U.</creator><creator>Miehe, U.</creator><creator>Jekel, M.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QH</scope><scope>7ST</scope><scope>7TG</scope><scope>7TV</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H97</scope><scope>KL.</scope><scope>L.G</scope><scope>SOI</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20121115</creationdate><title>Optimized removal of dissolved organic carbon and trace organic contaminants during combined ozonation and artificial groundwater recharge</title><author>Hübner, U. ; Miehe, U. ; Jekel, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c548t-3805a7d7b4221060623a2ff806f54fc1ba67a87edbd59599ed2ca1d2d988b9e33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>adverse effects</topic><topic>antipyrine</topic><topic>Antipyrine - chemistry</topic><topic>Applied sciences</topic><topic>biodegradation</topic><topic>Bromates</topic><topic>Byproducts</topic><topic>Carbamazepine - chemistry</topic><topic>Carbon</topic><topic>Carbon - chemistry</topic><topic>cytotoxicity</topic><topic>Dissolution</topic><topic>Dissolved organic carbon</topic><topic>drinking water</topic><topic>Exact sciences and technology</topic><topic>Filtration</topic><topic>genotoxicity</topic><topic>Groundwater</topic><topic>Groundwater - chemistry</topic><topic>Groundwater recharge</topic><topic>human health</topic><topic>Metoprolol - chemistry</topic><topic>Organic Chemicals - chemistry</topic><topic>Oxidants</topic><topic>oxidation</topic><topic>Ozonation</topic><topic>Ozone - chemistry</topic><topic>Pollution</topic><topic>pretreatment</topic><topic>Primidone - chemistry</topic><topic>Sand</topic><topic>sulfamethoxazole</topic><topic>Sulfamethoxazole - chemistry</topic><topic>Surface water</topic><topic>Trace organic compounds</topic><topic>Triazoles - chemistry</topic><topic>Waste Disposal, Fluid - methods</topic><topic>Water Pollutants, Chemical - chemistry</topic><topic>Water Purification - methods</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hübner, U.</creatorcontrib><creatorcontrib>Miehe, U.</creatorcontrib><creatorcontrib>Jekel, M.</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Water research (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hübner, U.</au><au>Miehe, U.</au><au>Jekel, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimized removal of dissolved organic carbon and trace organic contaminants during combined ozonation and artificial groundwater recharge</atitle><jtitle>Water research (Oxford)</jtitle><addtitle>Water Res</addtitle><date>2012-11-15</date><risdate>2012</risdate><volume>46</volume><issue>18</issue><spage>6059</spage><epage>6068</epage><pages>6059-6068</pages><issn>0043-1354</issn><eissn>1879-2448</eissn><coden>WATRAG</coden><abstract>Pilot scale experiments using an 8 g/h ozonation unit and a 1.4 m2 slow sand filter have demonstrated that the combination of ozonation and artificial groundwater recharge is suitable for efficient reduction of bulk and trace organics. The biodegradation of dissolved organic carbon (DOC) in the slow sand filter was enhanced from 22% without pre-treatment to 34% by pre-ozonation. In addition, realistic surface water concentrations of most investigated trace organic compounds (TrOCs) including carbamazepine, sulfamethoxazole, phenazone and metoprolol were reduced below the limits of quantification. Only a few TrOCs, e.g. primidone and benzotriazole, were not efficiently removed in both treatment steps and could be detected regularly in the filter effluent. For these compounds, enhanced treatment, such as advanced oxidation processes, needs to be considered. Testing for genotoxicity and cytotoxicity did not reveal any systematic adverse effects for human health. The formation of the by-product bromate from bromide was below the limit of the German drinking water directive of 10 μg/L. No removal of bromate was observed in the aerobic slow sand filter. Additional experiments with sand columns showed that operating a preceding bank filtration step to reduce DOC can reduce oxidant demand by approximately 20%.
[Display omitted]
► Pilot studies assessing the combination of ozonation and groundwater recharge. ► Efficient reduction of most trace organic compounds. ► Ozonation enhances biodegradation of DOC during groundwater recharge. ► Toxicity testing showed no adverse effect regarding human health. ► A preceding bank filtration reduces ozone demand for trace organic compound removal.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23014565</pmid><doi>10.1016/j.watres.2012.09.001</doi><tpages>10</tpages></addata></record> |
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subjects | adverse effects antipyrine Antipyrine - chemistry Applied sciences biodegradation Bromates Byproducts Carbamazepine - chemistry Carbon Carbon - chemistry cytotoxicity Dissolution Dissolved organic carbon drinking water Exact sciences and technology Filtration genotoxicity Groundwater Groundwater - chemistry Groundwater recharge human health Metoprolol - chemistry Organic Chemicals - chemistry Oxidants oxidation Ozonation Ozone - chemistry Pollution pretreatment Primidone - chemistry Sand sulfamethoxazole Sulfamethoxazole - chemistry Surface water Trace organic compounds Triazoles - chemistry Waste Disposal, Fluid - methods Water Pollutants, Chemical - chemistry Water Purification - methods Water treatment and pollution |
title | Optimized removal of dissolved organic carbon and trace organic contaminants during combined ozonation and artificial groundwater recharge |
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