Optimising nitrogen removal in existing stormwater biofilters: Benefits and tradeoffs of a retrofitted saturated zone

Zinger, Yaron; Blecken, Godecke-Tobias; Fletcher, Tim D.; Viklander, Maria; Deletić, Ana

doi:10.1016/j.ecoleng.2012.12.007

Cited by 119 publications

(60 citation statements)

References 24 publications

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“…The columns consisted of four layers, and the bottom layer is 150 mm fine gravel, a 100 mm deep coarse sand transition layer and 100 mm deep fine sand transition layer, and the top layer is 700 mm filter layer consisted of sandy loam and different special material (Zinger et al, 2013).…”

Section: Experimental Set-upmentioning

confidence: 99%

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Efficiency promotion and its mechanisms of simultaneous nitrogen and phosphorus removal in stormwater biofilters

Zhou

Cao

et al. 2016

Bioresource Technology

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Section: Experimental Set-upmentioning

confidence: 99%

“…During establishment, the filters were watered and run with spring water every day, so that the response of the systems to sewage could be measured, after the commencement of the formal dosing and sampling period (Zinger et al, 2013).…”

Section: Experimental Procedures and Samplingmentioning

confidence: 99%

Efficiency promotion and its mechanisms of simultaneous nitrogen and phosphorus removal in stormwater biofilters

Zhou

Cao

et al. 2016

Bioresource Technology

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“…Several studies have retrofitted the conventional biofilters by introducing a submerged (partly anoxic) zone with an embedded carbon source. With this advanced technique, total nitrogen removal has been enhanced significantly due to improved denitrification (Dietz et al 2006;Zinger et al 2013). Li et al (2012) further indicated that this approach could eliminate adverse effects of drying weather conditions on E. coli removal and achieve the recommended water quality for secondary contact recreational water use in relation to E. coli.…”

Section: Consideration Of Green Technologiesmentioning

confidence: 95%

Green Technologies for Sustainable Water Management: Introduction and Overview

Ngo

Guo

Chen

et al. 2016

Green Technologies for Sustainable Water Management

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As such, issues could be identified holistically and solved effectively from multiple sectors without creating other troubles and complications.  Avoiding poor investments and expensive mistakes. Decision-making based on short-term, segmented view would be rarely effective in the long-haul and can trigger unsustainable gains, unforeseen consequences and lost opportunities. Worse still, it is often the environment that has been sacrificed, together with negative consequences for both social and economic development. Comparatively, sustainable water management promotes the consideration of economic implications of infrastructure maintenance, water services and potential for costrecovery, and both short-and long-term environmental impacts. This can avoid the losses and high costs associated with unsustainable development and irreparable harms.  Getting the most value from investments in infrastructure. Sustainable water management can ensure maximum returns on investments from infrastructure planning, design and management both socially and economically. It facilitates the different investments working synergistically and producing greater returns than possible through a single-sector approach.  Allocating water strategically. Sustainable water management can provide strong links among allocation decisions, national development and economic planning processes, using tools such as water pricing and tariffs, appropriate incentives and subsidies, and the removal of ill-considered incentives and subsidies both inside and outside the water sector. This could significantly contribute to the improvement of water use efficiency (GWP 2004).To achieve sustainability, it involves the continuous reconciliation of water demand by the human environment with water supply by the natural system. Thus, depending on specific problems, it may also requires the consideration of land and water management, evapotranspiration, water quality and quantity, upstream and downstream water uses, and all stakeholders in the planning and management

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“…A schematic of a basic monophasic biofilter design is shown in Figure 1, although the City use a number of design variations, including an unlined version where aquifer recharge is an aim. A more complex biphasic design involves the addition a 200 to 300 mm saturation sump to provide an anaerobic environment in which bacteria can carry out denitrification; the conversion of dissolved nutrient nitrogen to harmless atmospheric nitrogen in a carbon-rich environment [9]. This reduces algal and cyanobacterial (blue-green algal) nutrients in the stormwater discharged to receiving waters, with a reduction in eutrophication potential.…”

Section: Introductionmentioning

confidence: 99%

Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters

Macnamara

Derry

2017

Water

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Abstract:The City of Sydney is constructing more than 21,000 square metres of street biofilter units (raingardens) in terms of their Decentralised Water Master Plan (DWMP), for improving the quality of stormwater runoff to Port Jackson, the Cooks River, and the historical Botany Bay. Recharge of the Botany Sand Beds aquifer, currently undergoing remediation by extraction of industrial chlorinated hydrocarbon pollutants, is also envisaged. To anticipate the pollution removal efficiency of field biofilter designs, laboratory soil-column simulations were developed by Western Sydney University partnered with the City. Synthetic stormwater containing stoichiometric amounts of high-solubility pollutant salts in deionised water was passed through 104 mm columns that were layered to simulate monophasic and biphasic field designs. Both designs met the City's improvement targets for total nitrogen (TN) and total phosphorus (TP), with >65% median removal efficiency. Prolonged release of total suspended solids (SS) on startup emphasised the need for specifications and testing of proprietary fills. Median removal efficiency for selected heavy metal ecotoxicants was >75%. The researchers suggested that Zinc be added to the targets as proxy for metals, polycyclic aromatic hydrocarbons (PAH) and oils/greases co-generated during road use. Simulation results suggested that field units will play an important role in meeting regional stormwater improvement targets.

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Optimising nitrogen removal in existing stormwater biofilters: Benefits and tradeoffs of a retrofitted saturated zone

Cited by 119 publications

References 24 publications

Efficiency promotion and its mechanisms of simultaneous nitrogen and phosphorus removal in stormwater biofilters

Efficiency promotion and its mechanisms of simultaneous nitrogen and phosphorus removal in stormwater biofilters

Green Technologies for Sustainable Water Management: Introduction and Overview

Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters

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