Volume 45, Issue 3 pp. 543-551
Research Article

Process Technology for the Removal of Cr(VI) from Wastewater Using Pig Iron Sludge

Karunakaran Saravanan

Karunakaran Saravanan

KPR Institute of Engineering and Technology, Department of Chemical Engineering, Coimbatore, India

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Surendran Ganesan

Corresponding Author

Surendran Ganesan

KPR Institute of Engineering and Technology, Department of Chemical Engineering, Coimbatore, India

Correspondence: Surendran Ganesan ([email protected]), Department of Chemical Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.Search for more papers by this author
Subramanian Kavitha

Subramanian Kavitha

JCT College of Engineering and Technology, Department of Petrochemical Engineering, Coimbatore, India

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Chinnakannu Jayakumar

Chinnakannu Jayakumar

Anna University, Department of Applied Science and Technology, A. C. Tech, Chennai, India

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Reddy Prasad Donipathi Mogili

Reddy Prasad Donipathi Mogili

Universiti Teknologi Brunei, Petroleum and Chemical Engineering Programme area, BE1410 Gadong, Brunei Darussalam

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Saroj Sundar Baral

Saroj Sundar Baral

BITS-Pilani K K SuGoa campus, Department of Chemical Engineering, Goa, India

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First published: 19 January 2022
Citations: 3

Abstract

The usage of pig iron sludge nanoparticles as adsorbent was explored to remove Cr(VI) from effluents. Batch sorption was administered to check the effect of various parameters on the sorption method, namely, pH, interaction time, as well as Cr(VI) concentration and dosage. The adsorption potential was related with the parameters. An inovative flow chart was proposed by using this sludge, which is a byproduct from the pig iron manufacturing industries, as adsorbent for the treatment of Cr(IV)-contaminated water, and then this sludge is recycled for drying followed by filtration. The adsorbed Cr(VI) will be useful for producing steel in a blast furnace. The sorption followed a second-order mechanism and the experimental data obeyed the Langmuir adsorption isotherm. Surface diffusion was found to be the sluggish step and thus is the rate-limiting step.

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