Quality of Industrial Effluents from Plants in Northeast Isfahan for Agricultural Reuse

Document Type : Research Paper

Author

PhD of Silviculture and Forest ecology, Sari Agricultural Sciences and Natural Resources University, Sari, I. R. Iran.

Abstract

Housing large and heavy industries, Isfahan Province is facing water shortage, encouraging investigations aimed at reusing industrial effluents in agriculture. Using average values obtained from tests of samples taken every 15 days over a period of two months from industrial effluents in northeast Isfahan, the present descriptive cross-sectional study was implemented to determine whether the effluents would pass quality standards for agricultural reuse. The average values of BOD, COD, TSS, pH, and turbidity as well as Fe, Zn, Pb, Cd, Co, Cr, Cu, Vanadium, Ag, Mn, and Nickel concentrations in addition to total and fecal coliform counts were compared with the quality standards recommended by EPA. It was found that average BOD, COD, TSS, pH, and turbidity values did not exceed standard values while total coliform counts as well as oil, fat, detergent, and heavy metal (e.g., cadmium, copper, vanadium, and cobalt) contents in some samples did exceed the relevant allowable limits. Based on the results obtained, the treated effluents exhibited certain limitations (e.g., high cadmium, copper, vanadium, and cobalt contents) that need to be addressed before reuse in agricultural irrigation. To avoid the adverse environmental effects of the effluents on soil, they may be recommended for irrigating non-edible trees and industrial plants such as cotton.

Keywords

References

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Land Management Journal
Volume 9, Issue 1
August 2021
Pages 157-165

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