Understanding the issues in monitoring the treatment effectiveness of constructed wetlands in urban areas – a case study in greater Melbourne, Australia

Yang, Fujia; Gato-Trinidad, Shirley; Hossain, Iqbal

doi:10.1039/d1ew00099c

Cited by 2 publications

(1 citation statement)

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“…Therefore, the effectiveness of CWs in treating heavy metal pollutants are impeded as these are not included in the BPM Guidelines and by data scarcity because water quality monitoring covering the full spectrum of pollutants is often financially demanding [4]. However, the enhancement of metal pollutants in the freshwater environment will largely depress the development of aquatic species.…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Analysis of the Correlation of Heavy Metals with TN, TP and TSS in Constructed Wetland

Yang¹,

Gato-Trinidad²,

Hossain³

2022

Proceedings of the 8th World Congress on New Technologies

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Constructed wetland (CW) has been receiving increased popularity in urban cities to treat stormwater runoffs following the best practice management guidelines which only focuses on TN, TP and TSS. However, the presence of heavy metals is also detected in CWs. This paper presents the water quality monitoring results of a CW in Melbourne, Australia. A statistical analysis has been undertaken to determine the correlation of heavy metals with TN, TP and TSS. The analysis revealed that the treatment performance did not comply with the best practice management guidelines and the wetland is experiencing significant metal pollution. The results showed that TN and TP concentrations are negatively correlated and TSS are strongly correlated with the concentration of metal pollutants including Al, Cu and Fe. Meanwhile, significant correlations are discovered between metals such as Zn and Cu, Al and Cr than between the common pollutants. As this is a preliminary analysis, further investigations are needed to validate the relationships. It is envisioned that the outcome of this research will assist CWs owners and managers to assess the effectiveness of CWs in reducing the levels of not only the common three pollutants but also heavy metals.

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Section: Introductionmentioning

confidence: 99%