Oily wastewater treatment at kartoum north power station

Abstract EN

To a chief these goals a series of experimental procedure have been executed for the wastewater in sump tank at river side where all wastewater collected.

This paper attempts to investigate the chemical and physical characteristics of Khartoum North Power Station waste water and to suggest methods for removing oil before being discharged to River Blue Nile.

To achieve this goal numerous numbers of samples have been collected and examined to detect oil content, turbidity, suspended solids, total dissolved solids, pH, BOD, COD and conductivity, and average values of these parameters were 924.3 ppm,554.2 NTU, 80ppm, 559.5ppm, 7.3pH unit, 130ppm, 443.14 ppm, 736.7 us / cm respectively.

The average values of these results were compared with [1] guide lines which arel5ppm, 5ppm, 60ppm, <1000 ppm, 7.5 pH unit, 60ppm, 100 ppm, 500 us / cm respectively.

The outcome of the paper confirmed that waste water at Khartoum north Power station (KNPS) is heavily polluted with oil and other pollutants.

For this reason a second phase of experiments is carried out mainly to remove or reduce oil content to 6.7ppm and other pollutants to levels which may comply with International Regulations and local Authority acts.

The treatment phase of experiment comprising different processing units arranged in a logical sequence starting with units for oil removal through a coagulation process, NaoH ending with air floatation and skimping to reduce oil content.

Results obtained from second phase of experiments after waste water being treated are encouraging and a total reduction in contamination of not less than 80 % has been achieved.