干旱区生态环境知识资源中心(Arid): Seasonal operation of dual-mode biofilters: The influence of plant species on stormwater and greywater treatment

Arid

DOI	10.1016/j.scitotenv.2020.136680
	Seasonal operation of dual-mode biofilters: The influence of plant species on stormwater and greywater treatment
	Barron, Natalie J.1; Hatt, Belinda 1; Jung, Juri 1; Chen, Yao 2; Deletic, Ana 3
通讯作者	Barron, Natalie J.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2020
卷号	715
英文摘要	The use of stormwater biofilters (also known as bioretention systems and raingardens), in tropical and semi-arid areas is hindered by seasonal rainfall patterns which cause extended dry periods. These periods can result in plant die-off, long-term damage to system health and leaching of pollutants when stormwater inflows resume. Using an additional polluted water source during dry periods could minimise system stress and eliminate the need to irrigate biofilters with potable water during dry spells. As such, the presented laboratory study tested the seasonal operation of biofilters, by switching from stormwater treatment in wet months to greywater treatment in dry months. Forty-five single planted biofilter columns, incorporating sedges, grasses, understory ornamentals and vines, were subjected to four months of stormwater inflows, followed by three months of greywater inflows. We also investigated the impact of including a carbon source in the saturated zone on treatment performance. The results showed plant species selection to be critical for nitrogen and phosphorus removal, with consistently effective species such as Carex appressa and Canna x generalis able to maintain low outflow concentrations (e.g. total nitrogen of 0.2-0.3 mg/L and 0.3-0.6 mg/L, respectively) across both water sources. Low outflow phosphorus concentrations were associated with plant species that had high filterable reactive phosphorus removal across both water sources. Similarly, higher removal of ammonia and oxidised nitrogen was associated with lower overall nitrogen concentrations. In contrast, high removal of total suspended sediment (>94%), biochemical oxygen demand (>98%) and some heavy metals (e.g. lead >98% and copper >93%) was reported across all designs. The results suggest that with the careful selection of plant species, biofilters can be operated seasonally as a feasible and practical solution to maintaining system health during extended dry periods. (C) 2020 Elsevier B.V. All rights reserved.
英文关键词	Bioretention system Raingarden Hybrid Blue-green infrastructure Nature based solution Living wall
类型	Article
语种	英语
国家	Australia ; Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000518409900123
WOS关键词	DISSIMILATORY NITRATE REDUCTION ; POLLUTANT REMOVAL PERFORMANCE ; NITROGEN REMOVAL ; PHRAGMITES-AUSTRALIS ; WATER ; BIORETENTION ; NUTRIENT ; DESIGN ; REUSE ; VEGETATION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315537
作者单位	1.Monash Univ, Monash Infrastruct Inst, Dept Civil Engn, 8 Scenic Blvd, Clayton, Vic 3800, Australia; 2.Chongqing Jiaotong Univ, Sch River & Ocean Engn, 66 Xuefu Ave, Nanan Dist, Chongqing Munic, Peoples R China; 3.Univ New South Wales, Sch Civil & Environm Engn, Oval Lane, Kingsford, NSW 2032, Australia
推荐引用方式 GB/T 7714	Barron, Natalie J.,Hatt, Belinda,Jung, Juri,et al. Seasonal operation of dual-mode biofilters: The influence of plant species on stormwater and greywater treatment[J],2020,715.
APA	Barron, Natalie J.,Hatt, Belinda,Jung, Juri,Chen, Yao,&Deletic, Ana.(2020).Seasonal operation of dual-mode biofilters: The influence of plant species on stormwater and greywater treatment.SCIENCE OF THE TOTAL ENVIRONMENT,715.
MLA	Barron, Natalie J.,et al."Seasonal operation of dual-mode biofilters: The influence of plant species on stormwater and greywater treatment".SCIENCE OF THE TOTAL ENVIRONMENT 715(2020).