A study of sludge characteristics of Biological Treatment by Extended Aeration at Merge Maarban station

The determination of sludge characteristics of wastewater treatment process has the primary role in the treatment and disposal. This research aims to determine the sludge characteristics by studying specific resistance factor of the sludge on the filtration at Merge Maarban station, so we took samples of sludge from the station and made several laboratory experiments and we got the time of intensify sludge, moisture and The concentration of the solid substances. we calculated specific resistance factor values of the sludge when the moisture values are ( 97.5 , 95.5 , 94 , 92 , 91 , 88 ) %. The research results showed a decrease in resistivity factor value of sludge on the filtration as its moisture become less and the sludge drying time takes tow weeks.