Research and Innovations
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Petro Novert Karungamye
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27 January 2024
550
637
Clogging of Substrate in Constructed Wetlands: Causes, Effects and Control Measures
DOI:
https://doi.org/10.56542/wi.jwempo.v1.i1.a2.2024
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Keywords:
Hydraulic efficiency pretreatment, influent, wastewater, constructed wetland
Abstract
The purpose of this paper was to review the available literature on the factors that cause substrate clogging in constructed wetlands. This review examines the effect, potential solutions, and areas requiring more research. Substrate clogging is a major problem in constructed wetlands which results in slowing down the flow of water and, ?nally, a significant reduction in the system's treating wastewater effectiveness. This technical and operational challenge is the result of a combination of processes such as suspended matter deposition, sludge formation, chemical precipitation, and deposition inside pore spaces. It is difficult to assess the extent of substrate clogging in constructed wetlands because this phenomenon is impacted by a variety of factors. This problem can be addressed using a preventive or restorative strategy. Some of these strategies include wastewater pre-treatment, proper substrate and aquatic plant selection, earlier removal of leaves and dead roots, and backwashing.
