Separations of pollutants from sugar processing industry: Treatment and characterization

• Published in: Separation science and technology Vol. 57; no. 5; pp. 801 - 821
• Main Authors: Sahu, Omprakash, Sarkar, Metali
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 24.03.2022; Taylor & Francis Ltd
• Subjects: Anode material; chemical composition; Chemical oxygen demand; Color; Color removal; Colour; Current density; Demand analysis; dissolved; Effluent standards; Effluents; Electrochemistry; Electrodes; Energy; Energy consumption; Fourier analysis; Fourier transforms; Infrared analysis; Kinetics; Optimization; Parameters; Pollutants; Processing industry; Response surface methodology; Saccharides; Sludge; Sugar industry; Sugarcane; Thermal analysis; wastewater
• ISSN: 0149-6395; 1520-5754
• DOI: 10.1080/01496395.2021.1940203

The purpose of this research work is to handle the sugar processing effluent up to acceptable standard. The aspiration of this experimental effort is to treat the sugarcane processing plant effluent with electrochemical method in batch mode using an iron plate as electrode. Response surface methodology (RSM) was employed to develop the driving parameters for color and chemical oxygen demand (COD) elimination. By analyzing the response curves of various parameters, maximum 75.4% of COD and 99.9% of color removal were predicted at pH of 6.8, current of 1.1 A, electrode distance of 13 mm and treatment interval of 78.3 min correspondingly. The kinetics order with respect to COD was obtained at 1.6 and with respect to current density of 0.69 A/m 2 . The energy consumption, specific energy consumption and anode losses were also determined at optimal condition. Thermal analysis, Fourier transform infrared analysis, and energy-dispersive x-ray micrographic report confirm that generated sludge is disposable. The research work concludes that RSM is efficient to optimize the operating variables.