BOD Treatment in HSSF Constructed Wetlands Using Different Media (Set-up Stage).

Document Type : Research Studies

Authors

1 Irrigation & Hydraulics Dept., Fac. of Engrg., Mansoura Univ., Mansoura, Egypt.

2 Professor of Irrigation Works Design, Irrigation and Hydraulics Engineering Department., Faculty of Engineering., Mansoura University.

3 Associate Professor, Drainage Research Institute, Ministry of Water Resources and Irrigation

4 Assistant Lecturer., Irrigation and Hydraulics Engineering Department., Faculty of Engineering., Mansoura University.

Abstract

Municipal wastewater treatment through horizontal subsurface flow (HSSE) constructed wetlands using three different treatment media (gravel, pieces of plastic pipes, and shredded tire rubber chips) were investigated in Samaha wastewater treatment plant, Dakahlia, Egypt. This study focused on the wetland set up stage during the first months of wetland operation. In this stage media porosity, bacterial biofilm, and plants roots growth were in progress and it was prior to the operational steady state stage. Objectives of this paper are to study the change in media porosity of HSSF wetland cells, to evaluate the use of different bed media on BOD treatment and to study the relationship between wetland hydraulic properties and pollutant removal rates during set up stage. The results showed that after 180 days of operation the wetland cells had reached steady porosity. Also, plastic cell gave more BOD reduction than gravel and rubber cells by average values of 4.83% and 8.66% respectively.  

Main Subjects

MEJ- Mansoura Engineering Journal
Volume 38, Issue 3
September 2013
Pages 36-46

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