{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,8]],"date-time":"2025-10-08T21:46:46Z","timestamp":1759960006364},"reference-count":0,"publisher":"IWA Publishing","issue":"1","content-domain":{"domain":["iwaponline.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2006,7,1]]},"abstract":"<jats:p>To meet the effluent requirements given for the sensitive receiving body, the Southpest Wastewater Treatment Plant of Budapest, Hungary uses a combined activated sludge-biofilter system with chemical precipitation for P removal. Causes of the proliferation of glycogen accumulating organisms (GAOs) observed in the unaerated\/oxic activated sludge unit of this system were investigated both in full-scale and in lab-scale experiments combined with a detailed analysis of the microbial communities. Concentration profile measurements throughout the 8-stage activated sludge unit indicated anaerobic conditions in the first two unaerated reactors and low orthophosphate level (&amp;lt;1\u2009mg\u2009l\u22121) in all of the stages that could not be attributed to the influent quality, but to Fe (III)-dosing to the returned activated sludge. Microbiological analysis revealed the presence of GAOs from the GB group in the Gammaproteobacteria and occasionally tetrad-forming organisms from Actinobacteria, and the absence of Rhodocyclus-related polyphosphate accumulating organisms (PAOs) in the activated sludge samples. Comparative lab-scale studies carried out in two identically arranged UCT-systems with staged anoxic reactors also confirmed that Fe (III)-dosing may result in phosphorus deficiency of the microbial niche, leading to the suppression of growth and EBPR activity of PAOs and to the proliferation of GAOs.<\/jats:p>","DOI":"10.2166\/wst.2006.377","type":"journal-article","created":{"date-parts":[[2006,7,7]],"date-time":"2006-07-07T11:09:09Z","timestamp":1152270549000},"page":"101-109","update-policy":"http:\/\/dx.doi.org\/10.2166\/iwapcrossmarkpolicypage","source":"Crossref","is-referenced-by-count":6,"title":["Proliferation of glycogen accumulating organisms induced by Fe(III) dosing in a domestic wastewater treatment plant"],"prefix":"10.2166","volume":"54","author":[{"given":"A.","family":"Jobb\u00e1gy","sequence":"first","affiliation":[{"name":"Department of Agricultural Chemical Technology, Budapest University of Technology and Economics, Szt. Gell\u00e9rt t\u00e9r 4., H-1111 Budapest, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"B.","family":"Liter\u00e1thy","sequence":"first","affiliation":[{"name":"Department of Agricultural Chemical Technology, Budapest University of Technology and Economics, Szt. Gell\u00e9rt t\u00e9r 4., H-1111 Budapest, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.-T.","family":"Wong","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, National University of Singapore, Singapore 117676"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"G.","family":"Tardy","sequence":"first","affiliation":[{"name":"Department of Agricultural Chemical Technology, Budapest University of Technology and Economics, Szt. Gell\u00e9rt t\u00e9r 4., H-1111 Budapest, Hungary"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W.-T.","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, National University of Singapore, Singapore 117676"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"945","container-title":["Water Science and Technology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/iwaponline.com\/wst\/article-pdf\/54\/1\/101\/432892\/101.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/iwaponline.com\/wst\/article-pdf\/54\/1\/101\/432892\/101.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,3,27]],"date-time":"2020-03-27T19:56:54Z","timestamp":1585339014000},"score":1,"resource":{"primary":{"URL":"https:\/\/iwaponline.com\/wst\/article\/54\/1\/101\/12688\/Proliferation-of-glycogen-accumulating-organisms"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,7,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2006,7,1]]}},"URL":"https:\/\/doi.org\/10.2166\/wst.2006.377","relation":{},"ISSN":["0273-1223","1996-9732"],"issn-type":[{"value":"0273-1223","type":"print"},{"value":"1996-9732","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2006,7,1]]},"published":{"date-parts":[[2006,7,1]]}}}