DOI: 10.1016/j.watres.2018.07.001
Scopus记录号: 2-s2.0-85047085940
论文题名: Evaluation of revolving algae biofilm reactors for nutrients and metals removal from sludge thickening supernatant in a municipal wastewater treatment facility
作者: Zhao X. ; Kumar K. ; Gross M.A. ; Kunetz T.E. ; Wen Z.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 143 起始页码: 467
结束页码: 478
语种: 英语
英文关键词: Metals removal
; Municipal wastewater
; Nutrients removal
; Pilot scale
; Revolving algal biofilm
; Sludge thickening
Scopus关键词: Ammonia
; Biofilms
; Efficiency
; Lakes
; Metals
; Wastewater reclamation
; Wastewater treatment
; BIofilm reactors
; Municipal wastewater treatment facility
; Municipal wastewaters
; Nutrients removal
; Pilot scale
; Removal efficiencies
; Sludge thickening
; Treatment process
; Nutrients
; activated sludge
; alga
; biofilm
; biological production
; biomass
; bioreactor
; metal
; municipal solid waste
; nutrient
; pollutant removal
; wastewater treatment
; Chicago
; Illinois
; United States
; algae
英文摘要: This work is to evaluate pilot-scale Revolving Algal Biofilm (RAB) reactors of two heights (0.9-m and 1.8-m tall) to treat supernatant from sludge sedimentation at Metropolitan Water Reclamation District of Greater Chicago (MWRD) for removing nutrients (N and P) as well as various metals. The RAB reactors demonstrated a superior performance in N and P removal as compared to control raceway ponds. Taller 1.8-m RAB reactors performed better than 0.9-m RAB reactors in terms of total nutrient removal and algal biomass productivity. At 7-day HRT, total P (TP) and Total Kjeldahl N (TKN) removal efficiency reached to 80% and 87%, respectively, while ortho-P and ammonia removal efficiency reached to 100%. Decreasing HRT led to an enhanced TP and TKN removal rate and nutrient removal capacity. At HRT of 1.3-day, the TP removal per footprint of 1.8-m tall RAB reactors was around 7-times higher than the open pond system. The RAB reactors also showed certain capabilities of removing metals from wastewater. The study demonstrated that RAB-based treatment process is an effective method to recover nutrients from municipal wastewater. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112547
Appears in Collections: 气候减缓与适应
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作者单位: Gross-Wen Technologies Inc, 2710 S. Loop Dr. Suite 2017, Ames, IA 50010, United States; Metropolitan Water Reclamation District of Greater Chicago, 100 East Erie Street, Chicago, IL 60611, United States; Food Science and Human Nutrition, Iowa State University, 536 Farmhouse Ln, Ames, IA 50011, United States
Recommended Citation:
Zhao X.,Kumar K.,Gross M.A.,et al. Evaluation of revolving algae biofilm reactors for nutrients and metals removal from sludge thickening supernatant in a municipal wastewater treatment facility[J]. Water Research,2018-01-01,143