Micro-and macro-environmental studies in scirpus validus rhizosphere: Engineering significance

Achintya N. Bezbaruah, Tian C. Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The role of wetland plants in the treatment of wastewater was investigated. The research was carried out in the backdrop of conflicting reports about the role wetland plants play in wastewater treatment. The plants' ability to release oxygen through their roots in wastewater environment was investigated in subsurface flow wetlands. The research investigated the role of aerobic and anaerobic processes in constructed treatment wetlands. Oxygen release by the wetland plants has been reported by researchers. One of the most recent studies have reported quantification of wetland plant oxygen release through the use of microelectrodes. However, the microelectrode measurement method had its inherent drawback of possible under or over estimation of oxygen release by wetland plants. This research is an endeavor to model a field wetland based on the assumption that wetland plants do not release enough oxygen for use in biochemical oxygen demand (BOD) removal. The wetland was modeled as an aerobic-anaerobic system. The model takes into account all the possible mechanisms of oxygen addition and consumption. These mechanisms include atmospheric reaeration, plant oxygen release, wastewater oxygen demand, and biomass oxygen demand. The modeling results indicated that ∼ 65% BOD removal occurs aerobically and rest is removed anaerobically.

Original languageEnglish (US)
Title of host publicationExamining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006
DOIs
StatePublished - 2007
EventWorld Environmental and Water Resources Congress 2006: Examining the Confluence of Environmental and Water Concerns - Omaha, NE, United States
Duration: May 21 2006May 25 2006

Publication series

NameExamining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006

Conference

ConferenceWorld Environmental and Water Resources Congress 2006: Examining the Confluence of Environmental and Water Concerns
CountryUnited States
CityOmaha, NE
Period5/21/065/25/06

Keywords

  • Wastewater management
  • Wetlands

ASJC Scopus subject areas

  • Environmental Science(all)

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    Bezbaruah, A. N., & Zhang, T. C. (2007). Micro-and macro-environmental studies in scirpus validus rhizosphere: Engineering significance. In Examining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006 [23] (Examining the Confluence of Environmental and Water Concerns - Proceedings of the World Environmental and Water Resources Congress 2006). https://doi.org/10.1061/40856(200)23