The Role of Alginate as Polymeric Material in Treatment of Tannery Wastewater

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Author(s) Marwa M. EL-Tayieb | M.M. El- Shafei | M.S. Mahmoud
Pages 218-224
Volume 2
Issue 2
Date February, 2013
Keywords Tannery, Polymerization technology, Heavy metals, Chromium.
Abstract

This paper determines the use of alginate to prepare metal sorbing beads. Their metal binding properties were investigated with respect to toxic constituents present in tannery wastewater from chromium stage Elmontaza Tannery, Ain El Sira, Cairo, Egypt. Their behavior in batch experiments for the remediation process was studied for two hours of contacts in acidic medium. Alginate was found to be a promising material for simultaneous removal of heavy metal ions and toxic organics pollutants. Results obtained adsorption efficiencies for chromium (43.5 %), cadmium (51.6 %), copper (67.4%), lead (57.8%), nickel (73.02%), iron (51.02%) and manganese ions (74.8%). Also, Results showed decrease in color absorbance and organic loads from tannery wastewater; TDS (44.6 %), salinity (39.9 %), COD (64.3 %), BOD (61.1 %), ammonia nitrogen (78.6 %), nitrate (75.5 %) and phosphorous (55.8 %). The availability of recycling of Ca-alginate beads was also studied for three subsequent cycles. SEM examination and FT-IR technique were also studied.

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