Treatment of Tannery Wastewater Using Polymerization and Biosorption Technologies

12 Pages Posted: 24 Apr 2018 Last revised: 14 Sep 2018

See all articles by M. EL-Tayieb

M. EL-Tayieb

Housing and Building National Research Center - Sanitary and Environmental Institute (SEI)

Date Written: November 24, 2017

Abstract

In Egypt, the tannery wastewater is discharged directly to the main domestic sewage pipeline which adds difficulties to the sewer system and to the wastewater treatment plants. Therefore, the removal of the chromium content of these wastewaters and other toxic constituents is necessary for environmental protection and economic reasons. The purpose of this study was to determine the use of alginate as polymer to prepare metal sorbing beads and determine the ability of sodium hydroxide treated Aspergillusniger (immobilized biomass) to remove toxic constituents from tannery wastewater from chromium stage Elmontaza tannery – Ein Elsira, Cairo, Egypt. Batch sorption experiments were carried out at room temperature 25 ± 3ºC, pH 5.0 ± 0.2 and 250 rpm for two hours of contacts. Results obtained show that, adsorption efficiencies of Aspergillusniger (immobilized biomass) and Ca-alginate respectively, for chromium (15%, 43.5 %), cadmium (70.97%, 51.6 %), copper (91.9%, 67.4%), lead (79.9%, 57.8%), nickel (93.8%, 73.02%), iron (58.3%, 51.02%) and manganese ions (87.6%, 74.8%). Also, Results showed decrease in color absorbance and organic loads from tannery wastewater. It can be concluded that the immobilized biomass had gained several advantages over the polymer; it was more effective in decreasing all toxic constituents from tannery wastewater.

Keywords: Tannery Wastewater, Polymerization, Biosorption, Chromium

Suggested Citation

EL-Tayieb, Marwa, Treatment of Tannery Wastewater Using Polymerization and Biosorption Technologies (November 24, 2017). 1st International Conference on Towards a Better Quality of Life, 2017, Available at SSRN: https://ssrn.com/abstract=3164089 or http://dx.doi.org/10.2139/ssrn.3164089

Marwa EL-Tayieb (Contact Author)

Housing and Building National Research Center - Sanitary and Environmental Institute (SEI) ( email )

Cairo
Egypt

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