DOI: 10.1016/j.watres.2018.03.076
Scopus记录号: 2-s2.0-85047413108
论文题名: Vertical-algal-biofilm enhanced raceway pond for cost-effective wastewater treatment and value-added products production
作者: Zhang Q. ; Yu Z. ; Zhu L. ; Ye T. ; Zuo J. ; Li X. ; Xiao B. ; Jin S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 139 起始页码: 144
结束页码: 157
语种: 英语
英文关键词: Algal biomass
; Biodiesel
; Biofilm carrier
; Mechanical harvester
; Wastewater
Scopus关键词: Biodiesel
; Biofilms
; Biomass
; Cost effectiveness
; Efficiency
; Lakes
; Nutrients
; Productivity
; Reclamation
; Removal
; Stabilization ponds
; Wastewater
; Algal biomass
; Biodiesel production
; Biofilm carriers
; Nutrient removal efficiency
; Nutrients concentrations
; Synthetic waste water
; Value added products
; Wastewater treatment efficiencies
; Wastewater treatment
; biodiesel
; biofuel
; nitrogen
; phosphorus
; alga
; biofilm
; biofuel
; biological production
; biomass
; concentration (composition)
; instrumentation
; operations technology
; pollutant removal
; pond
; wastewater treatment
; alga
; Article
; biofilm
; biomass production
; chemical composition
; coral
; nonhuman
; nutrient concentration
; pond
; priority journal
; productivity
; program cost effectiveness
; surface property
; waste water management
; biofilm
; biomass
; cost benefit analysis
; cyanobacterium
; economics
; green alga
; lipid metabolism
; metabolism
; microalga
; physiology
; pond
; procedures
; sewage
; waste water
; water pollutant
; algae
; Anthozoa
; Biofilms
; Biofuels
; Biomass
; Chlorophyta
; Cost-Benefit Analysis
; Cyanobacteria
; Lipid Metabolism
; Microalgae
; Nitrogen
; Phosphorus
; Ponds
; Waste Disposal, Fluid
; Waste Water
; Water Pollutants
英文摘要: A win-win strategy by the integration of wastewater treatment with value-added products production through a vertical-algal-biofilm enhanced raceway was investigated in the present study. Raceway pond was enhanced by vertically setting the biofilm in the system with a certain interval distance that could be adjusted for different light conditions and wastewater types. Two types of synthetic wastewater were treated with suitability-proven materials as biofilm carriers under four operation distances. Composition of the harvested algal biomass was analyzed. Coral velvet with 5–8 mm length villus was the optimal carrier, since it was durable and with high biomass productivity (6.95–8.11 g m−2·day−1). Nutrients in the wastewaters were efficiently removed with the COD, TN and TP reduction of over 86.61%, 73.68% and 89.85%, respectively. Wastewater with the low nutrients concentration experienced lower biomass and lipid productivity but larger biodiesel productivity and higher nutrient removal efficiency. In addition, as the operation distance increased, wastewater treatment efficiency was first increased but then decreased, while algal biomass footprint production was decreased. Differences in nutrients removal efficiencies were mainly due to the distance difference, which caused different biofilm culture surface areas and light regimes. The optimal operation distance as a function of the efficient nutrient removal and biodiesel production in this study was 6 cm. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112765
Appears in Collections: 气候减缓与适应
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作者单位: School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong; Faculty of Technology, University of Vaasa, Vaasa, FI-65101, Finland; School of Environmental Science and Engineering, Hunan University, Changsha, China
Recommended Citation:
Zhang Q.,Yu Z.,Zhu L.,et al. Vertical-algal-biofilm enhanced raceway pond for cost-effective wastewater treatment and value-added products production[J]. Water Research,2018-01-01,139