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The Effect of Eco-Wetlands and Microbial Attached Vegetation Block on Water Quality in Ecological River Construction

  • Crisisonomy
  • Abbr : KRCEM
  • 2018, 14(8), pp.73-82
  • DOI : 10.14251/crisisonomy.2018.14.8.73
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general
  • Received : July 12, 2018
  • Accepted : July 30, 2018
  • Published : August 31, 2018

oh dae min 1

1한국건설기술연구원

Accredited

ABSTRACT

This study evaluated the effects of installing eco-wetlands and microbial attached vegetation block in the Muhan river flowing into the Sapkyo river on water quality using the QUAL2E model. As a result of simulation after the construction of ecological river, water quality concentration at the joint point of the Sapkyo river was reduced by about 29.5% due to eco-wetlands (Case 1). It is also found that BOD changed by 31.6 - 69.6% when microbial attached vegetation block was also installed along with the eco-wetlands (Case 2). If only microbial attached vegetation block was installed, water quality concentration was reduced by about 18.4-39.5% (Case 3). The maximum reduction of water quality load on the downstream was found when microbial attached vegetation block was installed with eco-wetlands. In addition, when microbial attached vegetation block was installed, effluent purification effect turned out to be higher with a longer application distance than 500 m from the joint point with Yesan river.

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