Preprint Essay Version 1 NOT YET PEER-REVIEWED

Seasonal Applicability of Three Plant Constructed Wetlands for Nutrient Removal in Pilot Scale

  1. Department of Environmental Management, Science and Research Branch, Islamic Azad University, Tehran, Iran
  2. Biochemical and Bioenvironmental Research Center, Sharif University of Technology, Tehran, Iran
  3. Environmental Research Institute, Iranian Academic Center for Education, Culture & Research (ACECR), Rasht, Iran
Version 1 : Received: 28 November 2016 / Approved: 28 November 2016 / Online: 28 November 2016 (10:34:49 CET)

How to cite: Aminsharei, F.; Borghei, S.; Arjomandi, R.; Nouri, J.; Pendashteh, A. Seasonal Applicability of Three Plant Constructed Wetlands for Nutrient Removal in Pilot Scale. Preprints 2016, 2016110142 (doi: 10.20944/preprints201611.0142.v1). Aminsharei, F.; Borghei, S.; Arjomandi, R.; Nouri, J.; Pendashteh, A. Seasonal Applicability of Three Plant Constructed Wetlands for Nutrient Removal in Pilot Scale. Preprints 2016, 2016110142 (doi: 10.20944/preprints201611.0142.v1).

Abstract

The main objective of this study was to compare the removal efficiency of nutrients using Lactuca sativa, Medicago sativa and Phragmites australis in subsurface flow constructed wetlands with horizontal flow. In order to test water quality, fabricated reactors designed and the plants cultivated in the soil while their root were inside the wastewater. A long time study carried out from spring till end of autumn (9 months) in order to evaluate the difference in removal rate based on the seasonal changes. The highest removal rate was during summer which followed by spring and autumn. Thus, the effect of plants on the removal efficiency of organic matter (COD, BOD), TSS and nutrient (P and TN) appeared to be dependent on the seasonal growth. Phragmites australis the most sensitive species in order the removal of nutrient from wastewater.

Subject Areas

sub-surface flow constructed wetland; nutrient removal; wastewater treatment; Lactuca sativa; Medicago sativa; Phragmites australis

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