Assessment of removal rate coefficient in vertical flow constructed wetland employing machine learning for low organic loaded systems

Article Agricultural Engineering

Designing the vertical flow constructed wetland based on targeted limiting pollutant

Abhishek Soti et al.

Summary: The requirement of large land area limits the adoption of constructed wetlands (CWs) in urban settings with limited land availability. The area calculations for CW design are commonly carried out following Kikuth approach where the removal rate constant (K) is derived from literature. Investigation of secondary data of 82 vertical flow CWs, performed in this study, revealed wide variations in the calculated K values for different pollutants under different environmental and operational conditions, highlighting the importance of incorporating desired pollutant removal levels into customized CW design.

BIORESOURCE TECHNOLOGY (2022)

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Article Environmental Sciences

Strategies for enhancing phosphorous removal in Vertical Flow Constructed Wetlands

Vishesh Verma et al.

Summary: Constructed wetlands (CWs) are emerging treatment methods for wastewater treatment, but their potential as a sink for phosphorous is still debatable. This study compiled and assessed data from several CWs treating domestic sewage and found that phosphorous removal rates were positively correlated with loading rates, and increased wetland depth favored phosphate removal.

JOURNAL OF ENVIRONMENTAL MANAGEMENT (2022)

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Article Environmental Sciences

Effect of Filter Media and Depth on Hydrodynamics and Treatment Performances of Single-Stage French Vertical Flow Treatment Wetlands Treating Domestic Effluent

Hernan Ruiz-Ocampo et al.

Summary: Treatment wetlands for raw wastewater from small communities represent 20% of wastewater treatment plants in France. The study shows how the systems can be optimized based on outlet requirements and carbon availability, comparing different gravel depths and types. The research also indicates that the shape of crushed gravel affects biofilm attachment and hydrodynamics in the filters.

WATER AIR AND SOIL POLLUTION (2021)

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Article Agricultural Engineering