الفهرس 
ContentsOnly 14 pages are availabe for public view
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Abstract
Metal Pollutants Pose threats of toxicity to both humans and wildlife because they are widely distributed in the environment and they are highy persistent hexavalent chromium compounds chromates and dichromates are highly toxic and are considered as mutagens and carcinogens these compounds are discharged frequently to the environment as a result of diverse industrial processes in developing nations like egypt industrial wastewater treatment has to be a low cost proposition for its wider acceptance and utilization.