Wastewater Treatment in Baghdad City Using Moving Bed Biofilm Reactor (MBBR) Technology

Abstract

In this study, a laboratory scale system of Moving Bed Biofilm Reactor (MBBR) was used to treat municipal wastewater from a domestic community in Baghdad City to get the water free from BOD for reuse in the irrigation or discharge to the river. The aim of the described experimentation was the comparison of a low cost MBBR and an activated sludge system (AS); the other aim from this research is to derive successful MBBR wastewater reuse projects in Iraq. Laboratory experiments were conducted in two parts, firstly at BOD 5 load of about (150-200) mg/l, filling ratio of plastic elements in the MBBR reactor was 40%. Aerobic reactor consumed most of the biodegradable organic matter. The BOD 5 removal efficiencies were 78 and 90% for MBBR & AS respectively. Second part when BOD 5 load about (900-1300) mg/l used (synthetic wastewater)، filling ratio is 67%. The removal efficiencies of BOD reached 73 % for AS and about 88% for MBBR. ‫ﺍﻟﺼﺤﻲ‬ ‫ﺍﻟﺼﺭﻑ‬ ‫ﻤﻴﺎﻩ‬ ‫ﻤﻌﺎﻟﺠﺔ‬ ‫ﺒﻐﺩﺍﺩ‬ ‫ﻤﺩﻴﻨﺔ‬ ‫ﻓﻲ‬ ‫ﺘﻘﻨﻴﺔ‬ ‫ﺒﺎﺴﺘﺨﺩﺍﻡ‬ ‫ﺍﻟﻤﺘﺤﺭﻜﺔ‬ ‫ﺍﻟﺒﻴﻭﻟﻭﺠﻴﺔ‬ ‫ﺍﻟﻁﺒﻘﺔ‬ ‫ﻤﻔﺎﻋل‬ ‫ﺍﻟﺨﻼﺼﺔ‬ ‫ﻓﻲ‬ ‫ﺍﻟﺩﺭﺍﺴﺔ‬ ‫ﻫﺫﻩ‬ ‫ﺘﻡ‬ ‫ﻟﻐﺭﺽ‬ ‫ﻗﻴﺎﺴﻴﺔ‬ ‫ﻤﺨﺘﺒﺭﻴﻪ‬ ‫ﻤﻨﻅﻭﻤﺔ‬ ‫ﺘﻬﻴﺌﺔ‬ ‫ﺍﻟﺼﺤﻲ‬ ‫ﺍﻟﺼﺭﻑ‬ ‫ﻤﻴﺎﻩ‬ ‫ﻤﻌﺎﻟﺠﺔ‬ ‫ﻓﻲ‬ ‫ﺍﻟﺴﻜﻨﻴﺔ‬ ‫ﺍﻟﻤﺠﻤﻌﺎﺕ‬ ‫ﺃﺤﺩ‬ ‫ﻤﺼﺩﺭﻫﺎ‬ ‫ﻤﺩﻴﻨﺔ‬ ‫ﺒﻐﺩﺍﺩ‬ ‫ﺍﻟﻤﺘﺤﺭﻜﺔ‬ ‫ﺍﻟﺤﻴﻭﻴﺔ‬ ‫ﺍﻟﻁﺒﻘﺔ‬ ‫ﻤﻔﺎﻋل‬ ‫ﺒﺎﺴﺘﺨﺩﺍﻡ‬ ‫ﺒﻬﺩﻑ‬ ‫ﻤـﻥ‬ ‫ﺍﻟﺨﺎﻟﻲ‬ ‫ﺍﻟﻤﺎﺀ‬ ‫ﻤﻥ‬ ‫ﻜﺒﻴﺭ‬ ‫ﺠﺯﺀ‬ ‫ﺍﺴﺘﺭﺠﺎﻉ‬ ‫ﻟﻸﻭﻜﺴﺠﻴﻥ‬ ‫ﺍﻟﺤﻴﻭﻱ‬ ‫ﺍﻻﺤﺘﻴﺎﺝ‬) BOD (‫ﻴﻤﻜﻥ‬ ‫ﻭﺍﻟﺫﻱ‬ ‫ﺍﻟﻨﻬﺭ‬ ‫ﺇﻟﻰ‬ ‫ﺃﻋﺎﺩﺘﻪ‬ ‫ﺃﻭ‬ ‫ﺍﻟﺴﻘﻲ‬ ‫ﻷﻏﺭﺍﺽ‬ ‫ﺒﻌﺩ‬ ‫ﻓﻴﻤﺎ‬ ‫ﺍﺴﺘﺨﺩﺍﻤﻪ‬. ‫ﻫﺫﻩ‬ ‫ﻓﻲ‬ ‫ﺍﻟﻤﺒﻴﻨﺔ‬ ‫ﺍﻟﺘﺠﺎﺭﺏ‬ ‫ﻤﻥ‬ ‫ﺍﻟﻬﺩﻑ‬ PDF created with pdfFactory Pro trial version www.pdffactory.com