A multi-functional and multi-compartment constructed wetland to support urban waterway restoration

Tanveer Adyel, Matthew Richard Hipsey, Carolyn E. Oldham

Research output: Contribution to journalArticleResearchpeer-review

Abstract

This study assessed the significance of a multi-functional and multi-compartment constructed wetland (CW) implemented to restore a degraded urban waterway in Western Australia. The wetland was initially constructed as a surface flow system, then modified through the incorporation of the additional laterite-based subsurface flow system, with the potential for operation of a recirculation scheme and groundwater top-up during low water flows in summer. The CW performance was assessed by comparing nitrogen (N) and phosphorus (P) attenuation during base flow, high flow and episodic storm flow conditions. The performance varied
from approximately 41% total nitrogen (TN) and 66% total phosphorus (TP) loads reduction during storm events, increasing up to 62% TN and 99% TP during low flow and summer recirculation periods. In overall, the CW attenuated about 45% TN and 65% TP loads from being delivered to the downstream sensitive river
between 2009 and 2015. The CW design proved to be not only highly effective at reducing nutrient loads, but also improved the ecological services of the urban waterway by providing a diverse area for habitat and recreational activities.
Original languageEnglish
Pages (from-to)764-770
Number of pages7
JournalWater Practice and Technology
Volume13
Issue number4
DOIs
Publication statusPublished - 1 Dec 2018

Cite this

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title = "A multi-functional and multi-compartment constructed wetland to support urban waterway restoration",
abstract = "This study assessed the significance of a multi-functional and multi-compartment constructed wetland (CW) implemented to restore a degraded urban waterway in Western Australia. The wetland was initially constructed as a surface flow system, then modified through the incorporation of the additional laterite-based subsurface flow system, with the potential for operation of a recirculation scheme and groundwater top-up during low water flows in summer. The CW performance was assessed by comparing nitrogen (N) and phosphorus (P) attenuation during base flow, high flow and episodic storm flow conditions. The performance variedfrom approximately 41{\%} total nitrogen (TN) and 66{\%} total phosphorus (TP) loads reduction during storm events, increasing up to 62{\%} TN and 99{\%} TP during low flow and summer recirculation periods. In overall, the CW attenuated about 45{\%} TN and 65{\%} TP loads from being delivered to the downstream sensitive riverbetween 2009 and 2015. The CW design proved to be not only highly effective at reducing nutrient loads, but also improved the ecological services of the urban waterway by providing a diverse area for habitat and recreational activities.",
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A multi-functional and multi-compartment constructed wetland to support urban waterway restoration. / Adyel, Tanveer; Hipsey, Matthew Richard; Oldham, Carolyn E.

In: Water Practice and Technology, Vol. 13, No. 4, 01.12.2018, p. 764-770.

Research output: Contribution to journalArticleResearchpeer-review

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AB - This study assessed the significance of a multi-functional and multi-compartment constructed wetland (CW) implemented to restore a degraded urban waterway in Western Australia. The wetland was initially constructed as a surface flow system, then modified through the incorporation of the additional laterite-based subsurface flow system, with the potential for operation of a recirculation scheme and groundwater top-up during low water flows in summer. The CW performance was assessed by comparing nitrogen (N) and phosphorus (P) attenuation during base flow, high flow and episodic storm flow conditions. The performance variedfrom approximately 41% total nitrogen (TN) and 66% total phosphorus (TP) loads reduction during storm events, increasing up to 62% TN and 99% TP during low flow and summer recirculation periods. In overall, the CW attenuated about 45% TN and 65% TP loads from being delivered to the downstream sensitive riverbetween 2009 and 2015. The CW design proved to be not only highly effective at reducing nutrient loads, but also improved the ecological services of the urban waterway by providing a diverse area for habitat and recreational activities.

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