الفهرس 
Water resources characterizationOnly 14 pages are availabe for public view
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Abstract
Water quality of Noubaria canal was tested for a period of two years (2008-
2010). Samples were analyzed for physicochemical and biological parameters.
Canal water turbidity, electrical conductivity (E.C), chlorides, sulphate,
phosphate, total dissolved solid (T.D.S), total hardness and alkalinity were
higher in winter than in summer. Ammonia, nitrate and nitrite varied through the
study period while silica was stable. Chemical oxygen demond (COD),
Biological oxygen demand (BOD5) were lower in summer while dissolved
oxygen (DO) was rather constant. Total bacteria and coliform counts were
higher in winter. This was attributed to increasing of ammonia, nitrate and
nitrite.
Noubaria canal water quality improved through a new constructed biofilm
treatment system to reduce chemical addition upon treatment. This system
included sedimentation tanks and biological filter (BAF) under full aeration
condition.