COLUMN STUDY OF THE ADSORPTION OF PHOSPHATE BY USING DRINKING WATER TREATMENT SLUDGE AND RED MUD

The present study investigates the efficiency of phosphate removal from wastewater by the Drinking Water Treatment Sludge (DWTS), and Red Mud (RM) sorbent. Wastewater was taken from the effluent channel of Almuamirah wastewater treatment plantin at Al-Hilla city/Iraq. Drinking Water Treatment Sludge (DWTS), was taken from the sedimentation tanks of Al-Tayara drinking water treatment plant, in the same city. Column experiment was carried out to study the adsorption isotherm of phosphorus at 25±1?C and solution of different pH and adsorbent dosages. The effects of (DWTS) dose, bed height (H), contact time (T), agitation speed (S), hydrogen ion concentration (pH), (DWTS ?RM) ratio, were studied.