TRIALS TOWARDS APPROACHING EFF
REMEDIATION OF JMUSTRL&L WASTE-WATE]
Saad, S.M.M.; Foda, F.A.; El-Deeb, A.E. and M.A.E1-Sha
ce Toxico!.
? July 2003)
j C O I o g y . o r g Dept ofAgric Ch einistiy, Fac ofAgric. Moshtoh or, Zagazig Unh’.
ABSTRACT
The chemical analyses of waste-water disposed from Oil and Soap Company in Kafr El-
Zayat, El-Charbia, Egypt showed high contents of oil and grease, total dissolved solids, total
suspended solIds and some other parameters ؟e., biological oxygen demand (8O.Dj,
chemical oxygen demand (C.O.Ik) beside of some heavy metaLs. In this research different
treatments have been applied to get rid of (or at least eliminate) these wastes.
Firstly, the waste water was diluted with artesian water at the ratios of3 : 1 and 2 : 1.
The dilution of waste-water gave significant differentiations under the different ratios with
all parameters of diluted waste-water. Chemical remediation by using different reagents
significantly decreased the main pollutants but to extents still higher than those of the
National Regularity Standards.
Secondary, biological remediation was carried out by using microorganisms, which gave
significant improvement for reduction of pollutants. On the other hand, the interaction effect
of dilution, chemical and bioremediation have been proved to be very efficient in reducing
contents of the organic, inorganic contaminants and other pollutants, where avenge removal
values ofBO.D., C.O.D. and both oil and grease were 98.14%, 98.10% and 99.8%, respectively.
Consequently, the quality of treated waste-water disposed from Oil and Soap Company
became compatible with National Regubrity Standards, Egyptian Law No. 48 (1982).
Key words: Waste-water, dilution, chemical remediation, bioremediation. |
