Performance of Lagoons in Sewage Treatment in Fort Portal Municipality, Western Uganda

  • Richard Rubongoya Department of Environmental Sciences, College of Agricultural and Environmental Sciences, Makerere University, P.O Box 7062, Kampala, Uganda. 2Department of Plant Sciences,
  • Clement Nyakoojo Department of Plant Sciences, Microbiology & Biotechnology, Makerere University, P.O Box 7062, Kampala, Uganda.
  • Aliyu Abubakar Shehu Save the Nature Foundation, Sokoto, Nigeria.
Keywords: Efficiency, Fort Portal, NEMA standards, Kabundaire,, Lagoons

Abstract

In January - April 2018, a study was conducted to assess the efficiency of the waste stabilization ponds at
the Kabundaire Sewage Treatment Plant located in Fort Portal Municipality, Western Uganda. Physico-chemical
and microbiological parameters were measured in the influent and effluent of the lagoons using standard limnomicrobiological
procedures. At the influent site, the mean values (mgl−1) of TSS, TDS, BOD, DO, NH4 − N,
NO3−N, TN and TP were 1097.9, 920.0, 891.4, 2.40, 150.0, 0.25, 703.2 and 24.3 respectively. The mean values of
turbidity, temperature, EC, pH and TFC were 69.6 NTU, 22.4C, 3139.6 μScm−1, 7.8 and 1.19×107 CFU/100 ml
respectively. At the effluent site, the mean values (mgl−1) of TSS, TDS, BOD, DO, NH4 −N, NO3 −N, TN and
TP were 389.0, 465.8, 120.8, 0.34, 49.9, 0.08, 48.7 and 15.4 respectively. The mean values of turbidity, temperature,
EC, pH and TFC were 12.2 NTU, 20.9C, 1364.7 μScm−1, 8.17 and 4.51 × 105 CFU/100 ml respectively. Most
of the parameters were above permissible limits for discharge of effluent proposed by the National Environment
Management Authority (NEMA). The poor performance of the facility was attributed to population growth and
lack of maintenance.

Published
1931-12-20
How to Cite
Rubongoya, R., Nyakoojo, C., & Shehu, A. (1931). Performance of Lagoons in Sewage Treatment in Fort Portal Municipality, Western Uganda. Quaid-E-Awam University Research Journal of Engineering, Science & Technology, Nawabshah., 17(2), 1-6. Retrieved from http://publications.quest.edu.pk/ojs-3.1.1-4/index.php/qrj/article/view/113