Muafaq Anhab Saleh ✉
Department of Biology, College of Education for Pure Sciences, University of Tikrit, Iraq
Received: Sept 20, 2023/ Revised: Oct 22, 2023/Accepted: Oct 29, 2023
(✉) Corresponding Author: Muafaq Anhab Saleh
Abstract
The purpose of the study is to evaluate the feasibility of using a locally available natural material, i.e. bentonite, to adsorb copper from the industrial wastewater of the refinery, and to identify the optimal conditions for removing copper, which are pH, dose of the adsorbent, contact time, and concentration of the adsorbed ion. Using program (145 Copper, Porphyrin) for estimating copper, the sample is prepared by filling the cell with (10mL) of the sample, then adding the contents of the bag of reagent (Copper Masking), then shaking the cell well and leaving it aside to complete the dissolution of the reagent. Also, another cell is prepared containing (10mL) of the sample, and the contents of one bag of (Porphyrin 1 Reagent Powder) are added to it for each cell. The two cells were shaken well and the second reagent (Porphyrin 2 Reagent Powder) was added to them, one bag for each cell, then the two cells were shaken well and left for (3 minutes) until a pink color appeared for a short period and turned to yellow if copper was present in the sample. The spectrometer has been reset using a blank sample and the concentration of copper was recorded in units (μg/L). High effectiveness in copper removal was obtained by the produced adsorbate, Bentonite, at the ideal pH = (6), optimal dosage of the adsorbent (250 mg/L), optimal concentration of the adsorbate (prepared ion solution) (0.08 mg/L), and optimal contact duration (30 min). Under these circumstances, 94% of the copper was extracted. The present investigation found that the amounts of copper in the industrial effluent from the Qayyarah refinery varied from (0.2 – 0.023 mg/l)
Keywords: Bentonite, Copper removal, Industrial wastewater, Adsorption, Optimization
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How to cite this article
Saleh, M. A. (2023). Feasibility study of bentonite for efficient copper removal from refinery wastewater: optimization of operating conditions and industrial effluent analysis. Science Archives, Vol. 4(4), 244-251.
https://doi.org/10.47587/SA.2023.4401
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