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The Effects of Coagulation on Adsorption of Micropollutants in Waste Water Treatment Plants
In this study, the potential positive or negative effects of the coagulation process during the adsorption of micropollutants were investigated in treated waste water. Single‐walled carbon nanotubes (SWCNTs) were employed as adsorbents in batch adsorption processes. Alum was used as a coagulant in b...
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| Published in: | ChemistrySelect (Weinheim) 2024-11, Vol.9 (44), p.n/a |
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| creator | Özdemir, Kadir |
| description | In this study, the potential positive or negative effects of the coagulation process during the adsorption of micropollutants were investigated in treated waste water. Single‐walled carbon nanotubes (SWCNTs) were employed as adsorbents in batch adsorption processes. Alum was used as a coagulant in batch coagulation experiments carried out in the laboratory to coagulate water samples obtained from effluents at the advanced biological wastewater treatment plant in the center of Zonguldak (ZWWTP), Turkey. The ultrafiltration process (UF) was used to demonstrate the importance of the dissolved organic matter content (DOM) for the removal of micropollutants by coagulation and adsorption. Consequently, coagulation was found to be effective in the removal of hydrophobic organics, that is, DOM fractions with molecular weights of 5 kDa and 1–3 kDa, while adsorption with SWCNT was effective in the removal of hydrophilic organics ( |
| doi_str_mv | 10.1002/slct.202403043 |
| format | article |
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The combined treatment for wastewater treatment plant (WWTP) effluent demonstrates that coagulation has a negligible impact on the adsorption of micropollutants. The correlation between UV254 and the removal of micropollutants is subject to influence from the coagulation. The control of dosing SWCNTs and the prediction of micropollutant removal in WWTP can be achieved with adsorptive UV254 removal values.</description><identifier>ISSN: 2365-6549</identifier><identifier>EISSN: 2365-6549</identifier><identifier>DOI: 10.1002/slct.202403043</identifier><language>eng</language><subject>Adsorption ; Coagulation ; Micropollutants ; UV254</subject><ispartof>ChemistrySelect (Weinheim), 2024-11, Vol.9 (44), p.n/a</ispartof><rights>2024 Wiley‐VCH GmbH</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1743-bac59f93e1970b775b6178e6bf06daa36b6ab0ab5aeec96c4219957f8a1c49313</cites><orcidid>0000-0003-4202-2622</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27922,27923</link.rule.ids></links><search><creatorcontrib>Özdemir, Kadir</creatorcontrib><title>The Effects of Coagulation on Adsorption of Micropollutants in Waste Water Treatment Plants</title><title>ChemistrySelect (Weinheim)</title><description>In this study, the potential positive or negative effects of the coagulation process during the adsorption of micropollutants were investigated in treated waste water. Single‐walled carbon nanotubes (SWCNTs) were employed as adsorbents in batch adsorption processes. Alum was used as a coagulant in batch coagulation experiments carried out in the laboratory to coagulate water samples obtained from effluents at the advanced biological wastewater treatment plant in the center of Zonguldak (ZWWTP), Turkey. The ultrafiltration process (UF) was used to demonstrate the importance of the dissolved organic matter content (DOM) for the removal of micropollutants by coagulation and adsorption. Consequently, coagulation was found to be effective in the removal of hydrophobic organics, that is, DOM fractions with molecular weights of 5 kDa and 1–3 kDa, while adsorption with SWCNT was effective in the removal of hydrophilic organics (<1 kDa). SWCNT adsorption was effective for the removal of carbamazepine, diclofenac, and triclosan in combined treatment steps. Furthermore, the removal of carbamazepine, diclofenac, and triclosan was above 90% with SWCNT adsorption before coagulation. It was concluded that the significant correlation between micropollutant removal and the reduction in UV254 is attributed to the general non‐selectivity of adsorption on the SWCNTs surface. Micropollutants and UV254 absorbing compounds adsorb simultaneously. It can be reasonably deduced that a high/low adsorptive removal of a specific micropollutant is typically accompanied by a high/low removal of UV254‐absorbing substances. Even though the majority of micropollutants also absorb UV254, their concentrations in municipal wastewater are insignificant in comparison to the overall UV254 measurements. Hence, correcting the actual UV254 measurements of the combined treatment for removal by coagulation produces adsorptive UV254 removal. In other words, if the removal of UV254 by coagulation is already known, the actual UV254 measurements obtained in a combined treatment step can be adjusted to produce UV254 removal by SWCNT adsorption. Therefore, UV254 can be used as a control parameter for carbamazepine, diclofenac, and triclosan removal and SWCNT dosing control utilizing differential UV254 measurements can be implemented.
The combined treatment for wastewater treatment plant (WWTP) effluent demonstrates that coagulation has a negligible impact on the adsorption of micropollutants. The correlation between UV254 and the removal of micropollutants is subject to influence from the coagulation. The control of dosing SWCNTs and the prediction of micropollutant removal in WWTP can be achieved with adsorptive UV254 removal values.</description><subject>Adsorption</subject><subject>Coagulation</subject><subject>Micropollutants</subject><subject>UV254</subject><issn>2365-6549</issn><issn>2365-6549</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouKx79Zw_0DVpmqQ5LmX9gIqCFQ8eyiSbaCXbliSL7L-3y4p6E4b5YN5nGF6ELilZUkLyq-hNWuYkLwgjBTtBs5wJngleqNM__TlaxPhBCKGiFDmXM_TavFu8ds6aFPHgcDXA285D6oYeT7HaxCGMx8nh-86EYRy83yXoJ33X4xeIyU452YCbYCFtbZ_woz_sL9CZAx_t4rvO0fP1uqlus_rh5q5a1ZmhsmCZBsOVU8xSJYmWkmtBZWmFdkRsAJjQAjQBzcFao4QpcqoUl64EagrFKJuj5fHu9F2Mwbp2DN0Wwr6lpD240x7caX_cmQB1BD47b_f_qNunump-2S-rb2pn</recordid><startdate>20241101</startdate><enddate>20241101</enddate><creator>Özdemir, Kadir</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-4202-2622</orcidid></search><sort><creationdate>20241101</creationdate><title>The Effects of Coagulation on Adsorption of Micropollutants in Waste Water Treatment Plants</title><author>Özdemir, Kadir</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1743-bac59f93e1970b775b6178e6bf06daa36b6ab0ab5aeec96c4219957f8a1c49313</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Adsorption</topic><topic>Coagulation</topic><topic>Micropollutants</topic><topic>UV254</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Özdemir, Kadir</creatorcontrib><collection>CrossRef</collection><jtitle>ChemistrySelect (Weinheim)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Özdemir, Kadir</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Effects of Coagulation on Adsorption of Micropollutants in Waste Water Treatment Plants</atitle><jtitle>ChemistrySelect (Weinheim)</jtitle><date>2024-11-01</date><risdate>2024</risdate><volume>9</volume><issue>44</issue><epage>n/a</epage><issn>2365-6549</issn><eissn>2365-6549</eissn><abstract>In this study, the potential positive or negative effects of the coagulation process during the adsorption of micropollutants were investigated in treated waste water. Single‐walled carbon nanotubes (SWCNTs) were employed as adsorbents in batch adsorption processes. Alum was used as a coagulant in batch coagulation experiments carried out in the laboratory to coagulate water samples obtained from effluents at the advanced biological wastewater treatment plant in the center of Zonguldak (ZWWTP), Turkey. The ultrafiltration process (UF) was used to demonstrate the importance of the dissolved organic matter content (DOM) for the removal of micropollutants by coagulation and adsorption. Consequently, coagulation was found to be effective in the removal of hydrophobic organics, that is, DOM fractions with molecular weights of 5 kDa and 1–3 kDa, while adsorption with SWCNT was effective in the removal of hydrophilic organics (<1 kDa). SWCNT adsorption was effective for the removal of carbamazepine, diclofenac, and triclosan in combined treatment steps. Furthermore, the removal of carbamazepine, diclofenac, and triclosan was above 90% with SWCNT adsorption before coagulation. It was concluded that the significant correlation between micropollutant removal and the reduction in UV254 is attributed to the general non‐selectivity of adsorption on the SWCNTs surface. Micropollutants and UV254 absorbing compounds adsorb simultaneously. It can be reasonably deduced that a high/low adsorptive removal of a specific micropollutant is typically accompanied by a high/low removal of UV254‐absorbing substances. Even though the majority of micropollutants also absorb UV254, their concentrations in municipal wastewater are insignificant in comparison to the overall UV254 measurements. Hence, correcting the actual UV254 measurements of the combined treatment for removal by coagulation produces adsorptive UV254 removal. In other words, if the removal of UV254 by coagulation is already known, the actual UV254 measurements obtained in a combined treatment step can be adjusted to produce UV254 removal by SWCNT adsorption. Therefore, UV254 can be used as a control parameter for carbamazepine, diclofenac, and triclosan removal and SWCNT dosing control utilizing differential UV254 measurements can be implemented.
The combined treatment for wastewater treatment plant (WWTP) effluent demonstrates that coagulation has a negligible impact on the adsorption of micropollutants. The correlation between UV254 and the removal of micropollutants is subject to influence from the coagulation. The control of dosing SWCNTs and the prediction of micropollutant removal in WWTP can be achieved with adsorptive UV254 removal values.</abstract><doi>10.1002/slct.202403043</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0003-4202-2622</orcidid></addata></record> |
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| source | Wiley-Blackwell Read & Publish Collection |
| subjects | Adsorption Coagulation Micropollutants UV254 |
| title | The Effects of Coagulation on Adsorption of Micropollutants in Waste Water Treatment Plants |
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