Abstract: Both microbiological and chemical analysis of water and industrial wastewater samples collected from Dakahlia governorate (Egypt) were carried out. The microbiological examination involved the measurement of microbial total count, specific bacterial groups, pathogenic bacteria yeast, and fungi. The isolation and purification of different bacterial groups were also performed from different samples of industrial wastes. Trial to reuse the industrial effluents was also made. The chemical analysis included the measurement of conductivity, alkalinity, hardness, sulphate, PH, total dissolved solids, chloride, as well as dissolved oxygen. Results of the microbiological examination exhibited presence of yeast, fungi and bacteria. Short rods were the most bacterial isolates followed by spore formers and coccoid-shaped bacteria which came last in their count. Data also showed that neither water samples nor industrial wastes contain pathogenic bacteria when using specific cultivation media. Results of the chemical analysis showed that all measured parameters were found within the limitation either national or that of international law. Some samples exhibited higher values than that of permissible limits for some measured parameters. Furthermore, data proved the possibility of using the tested industrial wastes in production of both biomass and microbial enzymes as well. The bacterial treatment of industrial wastewater leads also to heavy metal reduction up to more than 50 per cent in some cases.