{"id":1663,"date":"2022-01-31T23:46:18","date_gmt":"2022-01-31T22:46:18","guid":{"rendered":"https:\/\/www.fqedar.com\/?p=1663"},"modified":"2022-02-03T00:34:37","modified_gmt":"2022-02-02T23:34:37","slug":"effect-of-4-nonylphenol-on-the-performance-and-microbial-community-of-a-sequencing-batch-reactor","status":"publish","type":"post","link":"https:\/\/www.fqedar.com\/?p=1663","title":{"rendered":"Effect of 4-nonylphenol on the performance and microbial community of a sequencing batch reactor."},"content":{"rendered":"<p style=\"text-align: justify;\"><span style=\"color: #000000;\">4-nonylphenol (4-NP) is one of the most relevant endocrine-disrupting compounds that can be found in wastewaters. In this work, the effect of dosing 1 mg\u00b7L<sup>\u22121<\/sup> of 4-NP to simulated wastewater on the activated sludge process was assessed. For it, two laboratory sequencing batch reactors (SBR) were operated for 94 days, adding 1 mg\u00b7L<sup>\u22121<\/sup> of 4-NP to the wastewater entering one of them (SBR-NP), while the other one (SBR-B) worked as a control reactor. Holistic study of 4-NP influence on activated sludge treatment was carried out, which included both the evolution of the biomass characteristics and the effect of this substance on reactor performance. Although the COD removal efficiency in SBR-NP was lower than in the reactor without 4-NP addition (SBR-B), COD removal efficiency of SBR-NP was always higher than 90%. From day 50, nitrification bacteria were inhibited in SBR-NP and cellular viability decreased from 85.7 \u00b1 11.0% in the first 50 days to 63.0 \u00b1 10.2% in the last 44 days. Concerning the microbial community analysis, both <em>Nitrosomonas<\/em> and <em>Nitrospira<\/em> abundances decreased in SBR-NP (from 0.62% to 0.45%, and from 2.39% to 1.01%, respectively). <em>Proteobacteria<\/em> abundance was considerably higher in SBR-NP at the end of the experiment (44.28% in SBR-NP and 25.88% in SBR-B), which was due to increase of <em>Aquabacterium<\/em> genus (13.00% and 0.00% in SBR-NP and SBR-B, respectively), playing an important role in 4-NP degradation. Thus, 4-NP presence, in the concentrations studied, affected heterotrophic and autotrophic bacteria differently, having a negative effect in the second group.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #808080;\">Eva Ferrer-Polonio <sup>(1)<\/sup>, Juli\u00e1n Fern\u00e1ndez-Navarro <sup>(2)<\/sup>, Jos\u00e9 Antonio Mendoza-Roca <sup>(1)<\/sup>, Mar\u00eda Amparo Bes-Pi\u00e1 <sup>(1)<\/sup>,\u00a0Jos\u00e9 Luis Alonso <sup>(2)<\/sup>.<\/span><br \/>\n<span style=\"color: #808080;\"><sup>(1)<\/sup> Instituto de Seguridad Industrial, Radiof\u00edsica y Medioambiental. Universitat Polit\u00e8cnica de Val\u00e8ncia.<\/span><br \/>\n<span style=\"color: #808080;\"><sup>(2)<\/sup> Instituto Ingenier\u00eda del Agua y Medio Ambiente. Universitat Polit\u00e8cnica de Val\u00e8ncia.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">E. Ferrer-Polonio, J. Fern\u00e1ndez-Navarro, J.A. Mendoza-Roca, M.A. Bes-Pi\u00e1, J.L. Alonso. 2022. Effect of 4-nonylphenol on the performance and microbial community of a sequencing batch reactor. Journal of Environmental Chemical Engineering. 10 (2). 107249. <\/span><a href=\"https:\/\/doi.org\/10.1016\/j.jece.2022.107249\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1016\/j.jece.2022.107249<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>4-nonylphenol (4-NP) is one of the most relevant endocrine-disrupting compounds that can be found in wastewaters. In this work, the effect of dosing 1 mg\u00b7L\u22121 of 4-NP to simulated wastewater on the activated sludge process was assessed. For it, two laboratory sequencing batch reactors (SBR) were operated for 94 days, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1665,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,15],"tags":[],"class_list":["post-1663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articulos","category-investigacion"],"_links":{"self":[{"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/posts\/1663","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1663"}],"version-history":[{"count":1,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions"}],"predecessor-version":[{"id":1664,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/posts\/1663\/revisions\/1664"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=\/wp\/v2\/media\/1665"}],"wp:attachment":[{"href":"https:\/\/www.fqedar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fqedar.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}