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Author Uyanik, Sinan
Source CiteSeerX
Content type Text
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Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Granule Formation ♦ Anaerobic Baed Reactor ♦ Tu B_itak Granule Development ♦ Split-fed Anaerobic Baed Reactor ♦ Internal Architecture ♦ Short Time ♦ Ice-cream Wastewater ♦ Fat-bearing Wastewater ♦ Normal Fed Anaerobic Baed Reactor ♦ Biomass Granulation ♦ Sem Picture ♦ Granular Growth Course ♦ Bacterial Population ♦ Little Intrinsic Propensity ♦ Sludge Sample ♦ Potential Anaerobic Reactor Conguration ♦ Anaerobic Reactor ♦ Compact Granule Formation ♦ Extracellular Polymer ♦ Granulation Process ♦ Complex Wastewater
Abstract The mechanism of biomass granulation in anaerobic reactors has been widely studied in the hope that this could be helpful in manupulating the rate and extent of granule formation, particularly in wastewaters that show little intrinsic propensity to granulate (e.g. fat and oil containing euents). Similarly, in this study, sets of sludge samples were taken from Normal Fed Anaerobic Baed Reactors (NFABRs) and Split-Fed Anaerobic Baed Reactors (SFABRs) treating brewery and ice-cream wastewater in order to evaluate the development of granulation and compare the rate of compact granule formation in the reactors. The internal architecture of the granules and the role of extracellular polymers (ECPs) on granule formation were also investigated. SFABRs proved to be a potential anaerobic reactor conguration for granule formation. It was revealed that the ability of granule formation in SFABRs can even extend to complex wastewaters, i.e. fat-bearing wastewaters, in a considerably short time. The mechanism governing stratication of bacterial population in granules was explained. The internal architecture of the granules and the role of ECPs on granule formation were speculated on with the changes observed on SEM pictures. The ndings conrmed that ECPs are central to the process of granulation. Based on the granular growth course, the granulation process is categorized into three phases: (i) initiation (ii) adaptation and maturation and (iii) granulation. Key words: Anaerobic baed reactor (ABR), Split-fed anaerobic baed reactor (SFABR), Granule de-
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research
Education Level UG and PG ♦ Career/Technical Study