DOI: 10.1016/j.watres.2018.03.050
Scopus记录号: 2-s2.0-85046008846
论文题名: Assessment of membrane photobioreactor (MPBR) performance parameters and operating conditions
作者: Luo Y. ; Le-Clech P. ; Henderson R.K.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 138 起始页码: 169
结束页码: 180
语种: 英语
英文关键词: Biomass composition
; Harvesting potential
; Microalgae
; Productivity
; Wastewater treatment
Scopus关键词: Algae
; Bacteria
; Biomass
; Cells
; Cytology
; Economic and social effects
; Photobioreactors
; Productivity
; Wastewater treatment
; Biomass compositions
; Comprehensive assessment
; Hydraulic retention time
; Membrane photobioreactor
; Micro-algae
; Performance parameters
; Standard operating conditions
; Wastewater treatment system
; Nutrients
; assessment method
; bacterium
; biomass
; bioreactor
; cell
; efficiency measurement
; harvesting
; microalga
; operations technology
; parameter estimation
; performance assessment
; technological change
; wastewater treatment
; Article
; bacterium
; biomass
; cell count
; cell viability
; flocculation
; nonhuman
; nutrient loading
; priority journal
; productivity
; retention time
; artificial membrane
; bacterial load
; photobioreactor
; procedures
; sewage
; time factor
; waste water
; algae
; Bacterial Load
; Biomass
; Membranes, Artificial
; Photobioreactors
; Time Factors
; Waste Disposal, Fluid
; Waste Water
英文摘要: Membrane photobioreactor (MPBR) technology is an emerging algae-based wastewater treatment system. Given the limitations due to the general use of conventional analytical approaches in previous research, this study aims to provide a more comprehensive assessment of MPBR performance through advanced characterisation techniques. New performance parameters are also proposed, encompassing five important aspects of MPBR system efficiency (i.e. biomass concentration, composition, production, nutrient uptake and harvesting potential). Under initial standard operating conditions, performance parameters, such as cell count/MLSS ratio, cell viability, proportion of bacteria and biomass yield coefficient, were found to offer new insights into the operation of MPBR. These parameters were then used, for the first time, to systematically investigate MPBRs operated under different hydraulic retention times (HRTs) and solids retention times (SRTs). Applying shorter HRT and SRT was observed to increase cell viability and productivity (up to 0.25 × 107 cells/mL·d), as anticipated due to the higher nutrient loading. It was noted that the faster growing algal cells featured lower requirement for nutrients. On the other hand, extending HRT and SRT resulted in a more heterogeneous culture (lower cell count/MLSS ratio and higher proportion of bacteria), achieving a higher degree of autoflocculation and greater NO3-N and PO4-P removals of up to 79% and 78% respectively. The results demonstrate the trade-off between applying different HRTs and SRTs and the importance of fully characterising system performance to critically assess the advantages and limitations of chosen operating conditions. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112791
Appears in Collections: 气候减缓与适应
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作者单位: The BioMASS Lab, School of Chemical Engineering, UNSW Sydney, Australia; UNESCO Centre for Membrane Science and Technology, School of Chemical Engineering, UNSW Sydney, Australia
Recommended Citation:
Luo Y.,Le-Clech P.,Henderson R.K.. Assessment of membrane photobioreactor (MPBR) performance parameters and operating conditions[J]. Water Research,2018-01-01,138