DOI: 10.1016/j.watres.2018.01.013
Scopus记录号: 2-s2.0-85040337288
论文题名: Determining variables that influence the phosphorus content of waste stabilization pond algae
作者: Sells M.D. ; Brown N. ; Shilton A.N.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 132 起始页码: 301
结束页码: 308
语种: 英语
英文关键词: Luxury uptake
; Microalgae
; Nutrient removal
; Phosphorus
; Polyphosphate
; Waste stabilization pond
英文摘要: Waste stabilization ponds (WSP) are one of the most common forms of wastewater treatment for smaller communities globally, but have poor phosphorus removal. It is known that WSP algae can accumulate polyphosphate within their cells in excess of that needed for cell function. If polyphosphate accumulation could be triggered at the higher range of WSP cell concentrations, phosphorus removal from domestic wastewater could be significantly improved. However, this phenomenon is sporadic and still not fully understood. With a view of building a fundamental understanding to underpin the engineering of a new phosphorus removal process, this paper examines eight previously untested variables that may influence the cellular phosphorus content of WSP biomass. Although calcium, magnesium, and potassium are key constituents of polyphosphate granules, the concentrations tested were not limiting to polyphosphate accumulation. While literature also pointed to inoculum characteristics as potentially having an impact, no significance was found in this research. Conversely, three important new triggers where identified that significantly (90% confidence) affected the cellular phosphorus content of WSP biomass. An increase in cellular phosphorus content was triggered by decreasing the organic load, or allowing the pH to increase as compared to pH control. By contrast, the presence of mixing decreased the phosphorus content of the WSP biomass. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112993
Appears in Collections: 气候减缓与适应
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作者单位: School of Engineering and Advanced Technology, Massey University, Private Bag 11-222, Palmerston North, New Zealand
Recommended Citation:
Sells M.D.,Brown N.,Shilton A.N.. Determining variables that influence the phosphorus content of waste stabilization pond algae[J]. Water Research,2018-01-01,132