Excessive phosphorus can cause eutrophication in water bodies and needs to be reduced
in most wastewaters before discharge to receiving waters. The enhanced biological phosphorus
removal (EBPR) process has been shown to be an economical and environmentally compatible
method for reducing phosphorus from wastewaters. The experiment has been performed in order
to investigate the effect of using effective microorganisms (EM) as an application of Enhanced Biological
Phosphorous Removal (EBPR) in modified contact stabilization activated sludge system by
using contact tank as a phosphorus uptake zone and using thickener tank as a phosphorus release
zone. The study involved the construction of a pilot plant which was setup in the Quhafa Wastewater
Treatment Plant (WWTP), Al Fayoum, Egypt