Influence of Wastewater Particles on Ozone Degradation of Trace Organic Contaminants
In this Article, we demonstrate the influence of effluent particles (in the range of
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| Veröffentlicht in: | Environmental science & technology 2015-01, Vol.49 (1), p.301-308 |
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| creator | Zucker, Ines Lester, Yaal Avisar, Dror Hübner, Uwe Jekel, Martin Weinberger, Yigal Mamane, Hadas |
| description | In this Article, we demonstrate the influence of effluent particles (in the range of |
| doi_str_mv | 10.1021/es504314t |
| format | Article |
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Secondary effluent was filtered through different pore-size filters and ozonated at various ozone doses. Degradation of both ozone-reactive and ozone-refractory contaminants improved following ozonation of effluent filtered with smaller pore size filters, indicating that particles in this range may adversely affect ozonation. The inhibitory effect of particles was attributed to their reaction with ozone, reducing available ozone and HO• radicals. In addition, increasing filtration level decreased the effluent’s (instantaneous) ozone demand and increased removal of effluent UV absorbance (UVA254), further establishing that ozone reacts with effluent particles, in competition with dissolved matter. Moreover, ozone was shown to react with particles even during the first seconds of the process, suggesting a high rate of some ozone–particle reactions, comparable to ozone reaction with highly reactive dissolved organic matter moieties. Particle image analysis revealed that particle formation/aggregation and particle disintegration occurs simultaneously during wastewater (WW) ozonation. 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Sci. Technol</addtitle><description>In this Article, we demonstrate the influence of effluent particles (in the range of <50 μm) on ozone degradation of trace organic contaminants (TrOCs) and effluent-quality parameters. Secondary effluent was filtered through different pore-size filters and ozonated at various ozone doses. Degradation of both ozone-reactive and ozone-refractory contaminants improved following ozonation of effluent filtered with smaller pore size filters, indicating that particles in this range may adversely affect ozonation. The inhibitory effect of particles was attributed to their reaction with ozone, reducing available ozone and HO• radicals. In addition, increasing filtration level decreased the effluent’s (instantaneous) ozone demand and increased removal of effluent UV absorbance (UVA254), further establishing that ozone reacts with effluent particles, in competition with dissolved matter. Moreover, ozone was shown to react with particles even during the first seconds of the process, suggesting a high rate of some ozone–particle reactions, comparable to ozone reaction with highly reactive dissolved organic matter moieties. Particle image analysis revealed that particle formation/aggregation and particle disintegration occurs simultaneously during wastewater (WW) ozonation. Our study implies that particles could affect the efficiency of WW ozonation, by increasing the effluent’s ozone demand and decreasing contaminant degradation.</description><subject>Biodegradation</subject><subject>Chemical reactions</subject><subject>Effluents</subject><subject>Filtration</subject><subject>Nutrient removal</subject><subject>Organic Chemicals - chemistry</subject><subject>Organic contaminants</subject><subject>Ozone</subject><subject>Particle Size</subject><subject>Seasons</subject><subject>Waste Disposal, Fluid - methods</subject><subject>Waste Water - chemistry</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqN0c9LwzAUB_Agis7pwX9ACiLooZrXJE16lPkThHmY6K28puno6NKZpIj-9XZsDtGLpwfhk-_j8SXkCOgF0AQujReUM-BhiwxAJDQWSsA2GVAKLM5Y-rpH9r2fUUoTRtUu2UsEl6A4DMjkwVZNZ6w2UVtFL-iDecdgXPSELtS6MT5qbTT-bK2Jrs3UYYmh7l96PHHY_xq7KdpaR6PWBpzXFm3wB2Snwsabw_Uckufbm8noPn4c3z2Mrh5j5DILsSilKNGoClgGkkmmmS6AllBInjCtBVBdpAWTCQqJGVaF4pKbiqpEpVIINiRnq9yFa98640M-r702TYPWtJ3PIRU8lZQD-wfljFOhsrSnJ7_orO2c7Q9ZKiEVZ-ly9_lKadd670yVL1w9R_eRA82XreSbVnp7vE7sirkpN_K7hh6crgBq_2Pbn6AvTc2Rew</recordid><startdate>20150106</startdate><enddate>20150106</enddate><creator>Zucker, Ines</creator><creator>Lester, Yaal</creator><creator>Avisar, Dror</creator><creator>Hübner, Uwe</creator><creator>Jekel, Martin</creator><creator>Weinberger, Yigal</creator><creator>Mamane, Hadas</creator><general>American Chemical Society</general><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>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope><scope>7QH</scope><scope>7TV</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>20150106</creationdate><title>Influence of Wastewater Particles on Ozone Degradation of Trace Organic Contaminants</title><author>Zucker, Ines ; 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| subjects | Biodegradation Chemical reactions Effluents Filtration Nutrient removal Organic Chemicals - chemistry Organic contaminants Ozone Particle Size Seasons Waste Disposal, Fluid - methods Waste Water - chemistry |
| title | Influence of Wastewater Particles on Ozone Degradation of Trace Organic Contaminants |
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