Removal Of Phenolic Compounds In Constructed Wetland: Modelling And Degradation Pathway Studies
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Date
2011-03
Authors
Gopalkrishnan, Vanitha
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Constructed wetland has been proven to be an effective and environmentally
friendly treatment system for municipal wastewater, agricultural and urban runoff.
To widen the scope of application, the application of construction wetland for the
treatment of industrial wastewaters has become an active field of research in recent
years. The objectives of this research are: 1) to develop a kinetic model for the
removal of phenol and p-nitrophenol (PNP) in horizontal subsurface-flow
constructed wetlands system incorporating biofilm biomass activities and 2) to
evaluate the performance of constructed wetlands in phenol and PNP removal and to
identify key intermediates in the biodegradation pathways. This study was divided
into two phases. The first phase involved the set-up and operation of four laboratoryscale
unplanted horizontal subsurface-flow constructed wetland units, two of which
were filled with glass beads and the other two with graded gravel as the support
media. The second phase involved the set-up and operation of four experimentalscale
horizontal subsurface-flow constructed wetland units, two of which planted wit
cattail (Typha latifolia), which were placed outdoors.
Description
Keywords
Phenolic Compounds , Constructed Wetland