Feasibility studies of using domestic wastewater for landscape irrigation purposes near a nuclear power plant Online publication date: Fri, 17-Aug-2018
by Muhammad Saleem; Usman Jabbar
International Journal of Environmental Engineering (IJEE), Vol. 9, No. 2, 2018
Abstract: The current domestic wastewater treatment unit in a local nuclear power plant (Karachi) was found to bring major wastewater parameters to ranges suitable for landscape irrigation purposes according to US-EPA and Jordanian standards, except for TSS, BOD5 and coliforms. The inclusion of a sedimentation basin was found to reduce suspended solids to 30 mg/l and coliform by 40%-50%, which was a relatively insignificant improvement. In order to improve the wastewater treatment facility further, laboratory runs were conducted by passing treated wastewater through a slow sand filtration (SSF) unit for 168 hours. SSF unit was found to reduce TSS by 81.7%, BOD5 by 71.7% and fecal coliforms by 99.75%. As a result, it is recommended to include both a sedimentation basin as well as a SSF unit in the wastewater treatment train in the future to allow treated wastewater from the nuclear power plant to meet international standards for landscape irrigation.
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