Treatment of laboratory wastewater by sequence batch reactor technology

These studies were conducted on the characterization and treatment of sewage mixed with waste -water of research and testing laboratory (pcsir laboratories lahore). in this study all the parameters cod,bod and tss etc of influent (untreated waste-water) and effluent (treated waste-water) were characterized using the standard methods of examination for water and wastewater. all the results of the analyzed waste-water parameters were above the national environmental quality standards (neqs) set at national level. treatment of waste-water was carried out by conventional sequencing batch reactor technique (sbr) using aeration and settling technique in the same treatment reactor at laboratory scale. the results of cod after treatment were reduced from (90-95 %),bod (95-97 %) and tss (96-99 %) and the reclaimed effluent quality was suitable for gardening purposes.