الفهرس 
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Abstract
While the water demands of Egypt can be met by the Nile’s water resources up to
the century, the quality of the water is deteriorating rapidly due to the prevailing
in appropriate waste water disposal practices. Many parts of the river are not
suitable today for potable purposes due to pollution from both domestic and industrial
. sources. This situation is expected to worsen with the growth in population
accompanied by an increase in both industrial and agricultural production. Accordingly,
priority for industrial pollution abatement within the Egyptian Environmental Action
Plan (1992) has been designated to the industrial facilities along the Nile River .
Oil and Soap industry is one of the industries which contributes greatly to the
pollution load of the Nile River . The major hazards created by waste water from
this industry are usually due to the presence of oil and grease in the effluent or
process water. Such liquors often contain emulsion which aggravate the problem and
cause immense difficulties for water treating authorities.
Waste water from Salt and Soda company in Kafr E1-Zayat city, E1-Garbia Governorate,
provides the material of this study. The plant produces oil (3rd grade) toilet and
laundry soaps, pharmaceutical and industrial glycerin, silicate, and fodder.
The waste constituents are mainly emulsified and floated oil, fatty acid,triglycerides
and unsaponifeable matter of glycerol. Due to the chemicals used in the industrial
processes, alkaline and acidic stream, soaps, dissolved salts, and suspended matters
both organic and inorganic contaminants are also present. Waste water from this plant
(31,000 m 3/d) discharges directly into the Nile River without .