Design Of Horizontal And Vertical Subsurface
Flow Constructed Wetlands Treating Industrial
Wastewater
Author(s)
J. Mena, L. Rodriguez, J. Nuñez, F. J. Fernández
& J. Villaseñor
Abstract
Constructed wetlands have become a good alternative to urban and industrial
wastewater treatments. Because of the many interactions between the different
parts that form the wetland, the design of these systems used to be very complex
so a good design tool is required. Hybrid constructed wetlands mix the aerobic
and anaerobic properties of vertical and horizontal subsurface flow constructed
wetlands to improve COD, phosphorous and, especially nitrogen removal. A
simulation of the concentration profiles of these compounds into a hybrid system
constituted by four vertical flow constructed wetlands and a horizontal flow one
with the K-C* model was achieved when the system treated an urban and a
winery wastewater, respectively. Maximum limits of the flow rate to achieve the
legislation limits of the different pollutants were calculated. Winery wastewater
treatment required lower flow rates because of its higher organic loading.
Because constructed wetlands had limited capacity to remove phosphorous, it
was the most restrictive pollutant, requiring a lower flow rate.
Keywords: constructed wetland, hybrid system, K-C* model, simulation.
1 Introduction
In the last few years, inside natural systems of wastewater treatment constructed
wetland (CW) has become an important alternative of treatment because it
Keywords
constructed wetland, hybrid system, K-C* model, simulation.
Related Book
Other papers in this volume
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