Contamination of groundwater with heavy metal andSurfacewater
pollution is so dangerous matter that all must face and find solutions 
for that. This study aims to use develop more safe methods for water 
treatment using biological treatment as special nanocomposite.Total 
hardness was 448 mg/L and after treatment reduced to 360 mg/L, 
while electric conductivity before treatment was 1507 us/cm and 
decreased to 1369 us/cm., TDS was 994.6 mg/L and after treatment 
reduced to 903.5 mg/L and chlorides for raw water was 260mg/L and 
treated water recorded 160 mg/L. Also, iron recorded 0.5 mg/L and 
reached 0.03 mg/L after treatment and manganese was 0.35 mg/L and 
reduced to 0.1mg/L after treatment. In River Nile water electric 
conductivity recorded 409 us/cmand after treatment reported 387 
us/cm, while TDS was 269 mg/L before treatment and after treatment 
recoded 255.4 mg/L. Moreover, total alkalinity before treatment was 
200 mg/L and after treatment reduced to 180 mg/L, while iron in 
water was 0.4 mg/L and decreased to 0.08 mg/L after treatment. The 
bacterial species isolated from River Nile wereAeromonassobria, 
Pseudomonas putida, leclerciaadecarboxylata, Escherichia coli, 
Staphylococcus aureus,while in Sheblanga Wall water Staphylococcus 
hominisssphominis, Aeromonassobria, Staphylococcus aureus were 
isolated. After biological tretment no bacteria found, 0 Salmonella, 0 
Shigella. These results showed that nanocomposite can be used as safe 
methods in water treatment.