Membrane and Water Treatment

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Assessment of environmental impacts of LID technologies on vegetation

  • Choi, Hyeseon (Dept. of Civil & Environ. Engineering, Kongju National University) ;
  • Hong, Jungsun (Dept. of Civil & Environ. Engineering, Kongju National University) ;
  • Geronimo, F.K.F. (Dept. of Civil & Environ. Engineering, Kongju National University) ;
  • Kim, Lee-Hyung (Dept. of Civil & Environ. Engineering, Kongju National University)
  • Received : 2018.05.04
  • Accepted : 2018.08.31
  • Published : 2019.01.25
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Abstract

LID facilities do not consider environmental factors, and due to inappropriate vegetation planting causing degradation in efficiency due to plant damage and difficulty in maintenance. Therefore, in this study, assessment of impact environmental factor by seasonal variation of chlorophyll and growth of vegetation planted in LID technologies and change of pollutant reduction were conducted. In the case of B-SJ and B-RI, growth rate decreased after summer (August), and B-MG showed steady growth until autumn (September). Chlorophyll was found to increase during spring season while it decreased during autumn season. The chlorophyll concentration was found to affect the plant growth pattern. TN reduction efficiency was highest with greater than 80% efficiency in summer, and it was analyzed that plants were identified as the main factor affecting the seasonal reduction efficiency of TN. Also, temperature and relative humidity were analyzed to affect plant growth, activity and pollutant removal efficiency. Plant type and growth pattern are considered as factors to be considered in selection of appropriate plant types in LID technologies.

Keywords

Acknowledgement

Supported by : Kongju National University

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