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Τίτλος: Phosphorus dissolution from dewatered anaerobic sludge: Effect of pHs, microorganisms, and sequential extraction
Συγγραφείς: Vardanyan, Arevik 
Kafa, Nasia 
Konstantinidis, Viktoras 
Shin, Seung Gu 
Vyrides, Ioannis 
Major Field of Science: Engineering and Technology
Field Category: Environmental Engineering
Λέξεις-κλειδιά: Dewatered anaerobic sludge;Dewatered anaerobic sludge treatment;P fractionation;P mass balance;Phosphorus (P) dissolution
Ημερομηνία Έκδοσης: Φεβ-2018
Πηγή: Bioresource Technology, 2018, vol. 249, pp. 464-472
Volume: 249
Start page: 464
End page: 472
Περιοδικό: Bioresource Technology 
Περίληψη: Phosphorus (P) and iron mass balance from Limassol Wastewater Treatment Plant showed that the major removal and accumulation occurred at the aerobic secondary stage and at Dewatered Anaerobic Sludge (DWAS), respectively. The purpose of this study was to examine various parameters that effect the P dissolution under low pH from DWAS. The parameters that significantly contribute to P extraction were the exposure to pH 2.5, the anaerobic conditions and the sequential extraction. The addition of chemolithotrophic acidophilic bacteria has negatively influenced P dissolution, whereas the addition of acidophilic Heterotrophic Iron Reducing (HIR) bacteria has slightly increased P dissolution but they contributed to pH maintenance at lower levels compared to no addition of HIR. P fractionation of the residual sludge after sequential extraction pointed out that the organically bound P was hardly dissoluted from DWAS. The residual DWAS after acid treatment generated around 45% less methane compared to the initial DWAS.
URI: https://hdl.handle.net/20.500.14279/10976
ISSN: 18732976
DOI: 10.1016/j.biortech.2017.09.188
Rights: © Elsevier
Type: Article
Affiliation: National Academy of Sciences of the Republic of Armenia 
Cyprus University of Technology 
Sewerage Board of Limassol 
Gyeongnam National University of Science and Technology 
Publication Type: Peer Reviewed
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