Enhanced treatment of secondary municipal wastewater effluent: comparing (biological) filtration and ozonation in view of micropollutant removal, unselective effluent toxicity, and the potential for real-time control
Ozonation and three (biological) filtration techniques (trickling filtration (TF), slow sand filtration (SSF) and biological activated carbon (BAC) filtration) have been evaluated in different combinations as tertiary treatment for municipal wastewater effluent. The removal of 18 multi-class pharmac...
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| Veröffentlicht in: | Water science and technology 2017-07, Vol.76 (1-2), p.236-246 |
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| creator | Chys, Michael Demeestere, Kristof Ingabire, Ange Sabine Dries, Jan Van Langenhove, Herman Van Hulle, Stijn W H |
| description | Ozonation and three (biological) filtration techniques (trickling filtration (TF), slow sand filtration (SSF) and biological activated carbon (BAC) filtration) have been evaluated in different combinations as tertiary treatment for municipal wastewater effluent. The removal of 18 multi-class pharmaceuticals, as model trace organic contaminants (TrOCs), has been studied. (Biological) activated carbon filtration could reduce the amount of TrOCs significantly (>99%) but is cost-intensive for full-scale applications. Filtration techniques mainly depending on biodegradation mechanisms (TF and SSF) are found to be inefficient for TrOCs removal as a stand alone technique. Ozonation resulted in 90% removal of the total amount of quantified TrOCs, but a post-ozonation step is needed to cope with an increased unselective toxicity. SSF following ozonation showed to be the only technique able to reduce the unselective toxicity to the same level as before ozonation. In view of process control, innovative correlation models developed for the monitoring and control of TrOC removal during ozonation, are verified for their applicability during ozonation in combination with TF, SSF or BAC. Particularly for the poorly ozone reactive TrOCs, statistically significant models were obtained that correlate TrOC removal and reduction in UVA
as an online measured surrogate parameter. |
| doi_str_mv | 10.2166/wst.2017.207 |
| format | Article |
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Academic</collection><jtitle>Water science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chys, Michael</au><au>Demeestere, Kristof</au><au>Ingabire, Ange Sabine</au><au>Dries, Jan</au><au>Van Langenhove, Herman</au><au>Van Hulle, Stijn W H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced treatment of secondary municipal wastewater effluent: comparing (biological) filtration and ozonation in view of micropollutant removal, unselective effluent toxicity, and the potential for real-time control</atitle><jtitle>Water science and technology</jtitle><addtitle>Water Sci Technol</addtitle><date>2017-07-01</date><risdate>2017</risdate><volume>76</volume><issue>1-2</issue><spage>236</spage><epage>246</epage><pages>236-246</pages><issn>0273-1223</issn><eissn>1996-9732</eissn><abstract>Ozonation and three (biological) filtration techniques (trickling filtration (TF), slow sand filtration (SSF) and biological activated carbon (BAC) filtration) have been evaluated in different combinations as tertiary treatment for municipal wastewater effluent. The removal of 18 multi-class pharmaceuticals, as model trace organic contaminants (TrOCs), has been studied. (Biological) activated carbon filtration could reduce the amount of TrOCs significantly (>99%) but is cost-intensive for full-scale applications. Filtration techniques mainly depending on biodegradation mechanisms (TF and SSF) are found to be inefficient for TrOCs removal as a stand alone technique. Ozonation resulted in 90% removal of the total amount of quantified TrOCs, but a post-ozonation step is needed to cope with an increased unselective toxicity. SSF following ozonation showed to be the only technique able to reduce the unselective toxicity to the same level as before ozonation. In view of process control, innovative correlation models developed for the monitoring and control of TrOC removal during ozonation, are verified for their applicability during ozonation in combination with TF, SSF or BAC. Particularly for the poorly ozone reactive TrOCs, statistically significant models were obtained that correlate TrOC removal and reduction in UVA
as an online measured surrogate parameter.</abstract><cop>England</cop><pub>IWA Publishing</pub><pmid>28708628</pmid><doi>10.2166/wst.2017.207</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0273-1223 |
| ispartof | Water science and technology, 2017-07, Vol.76 (1-2), p.236-246 |
| issn | 0273-1223 1996-9732 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1920200060 |
| source | MEDLINE; EZB-FREE-00999 freely available EZB journals |
| subjects | Activated carbon Adsorption Biodegradation Biofiltration Charcoal - chemistry Contaminants Control Cost engineering Drinking water Effluents Filtration Filtration - instrumentation Filtration - methods Micropollutants Municipal wastewater Organic contaminants Oxidation Ozonation Ozone Ozone - chemistry Ozonization Personal grooming Pharmaceuticals Pollutant removal Process control Real time Removal Secondary wastewater Silicon Dioxide - chemistry Statistical analysis Toxicity Waste Disposal, Fluid - instrumentation Waste Disposal, Fluid - methods Waste Water - chemistry Wastewater Wastewater treatment Water Pollutants, Chemical - chemistry |
| title | Enhanced treatment of secondary municipal wastewater effluent: comparing (biological) filtration and ozonation in view of micropollutant removal, unselective effluent toxicity, and the potential for real-time control |
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