DOI: 10.1016/j.watres.2017.12.014
Scopus记录号: 2-s2.0-85038815871
论文题名: Effects of high-concentration influent suspended solids on aerobic granulation in pilot-scale sequencing batch reactors treating real domestic wastewater
作者: Cetin E. ; Karakas E. ; Dulekgurgen E. ; Ovez S. ; Kolukirik M. ; Yilmaz G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 131 起始页码: 74
结束页码: 89
语种: 英语
英文关键词: Aerobic granular sludge
; Domestic wastewater
; Granule structure
; Influent suspended solids
; Microbial community
; Pilot-scale
Scopus关键词: Activated sludge process
; Chemical oxygen demand
; Effluents
; Granular materials
; Granulation
; Microorganisms
; Wastewater treatment
; Aerobic granular sludges
; Domestic wastewater
; Granule structure
; Microbial communities
; Pilot scale
; Suspended solids
; Batch reactors
; biomass
; bioreactor
; chemical oxygen demand
; concentration (composition)
; effluent
; microbial community
; oxic conditions
; suspended load
; wastewater
; Article
; bacterial colonization
; biomass
; chemical oxygen demand
; concentration (parameters)
; controlled study
; domestic waste
; microbial community
; nonhuman
; priority journal
; retention time
; sludge treatment
; surface property
; suspended particulate matter
; waste water management
英文摘要: The aim of this study was to investigate the effect of high-influent-concentration suspended solids (SS) on the cultivation, structure and long-term stability of aerobic granular sludge (AGS). Cultivation and long-term stability of AGS were monitored in two pilot-scale sequencing batch reactors fed with raw (R1) and settled (R2) domestic wastewater, representing high and medium SS content, respectively. The real domestic wastewater had high chemical oxygen demand (COD) content (1100 ± 270 mg COD L−1). Aerobic granular sludge was cultivated in 44 days (R1) and 25 days (R2) under the conditions of high settling velocity (18 m h−1) and high organic loading rate (OLR) (2.1–2.4 kg COD m3 day). The AGS in both reactors had similar structural properties during long-term operation and remained structurally and functionally stable during the last five months of operation. Comparative evaluation of the results indicated that the high influent SS content of the real domestic wastewater had a positive influence on maintaining significantly lower SVI30 and relatively lower effluent SS concentration. Moreover, a higher influent SS content resulted in smaller mature granules during the stable period. Microbial community analyses helped to understand the aerobic granular sludge structure and showed that the sludge retention time and OLR affected the granular sludge population. The high influent SS increased biomass detachment from the granular sludge surface and caused wash-out of some bacteria colonizing the exterior of the granular sludge. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113025
Appears in Collections: 气候减缓与适应
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作者单位: Istanbul University, Faculty of Engineering, Environmental Engineering Department, Avcilar, Istanbul 34320, Turkey; Istanbul Technical University, Faculty of Civil Engineering, Environmental Engineering Department, Maslak, Istanbul 34469, Turkey; Bioeksen R&D Ltd. Co., Maslak, Istanbul 34469, Turkey
Recommended Citation:
Cetin E.,Karakas E.,Dulekgurgen E.,et al. Effects of high-concentration influent suspended solids on aerobic granulation in pilot-scale sequencing batch reactors treating real domestic wastewater[J]. Water Research,2018-01-01,131