Optimization of Hexavalent Chromium Removal from Wastewater Using Activated Carbon Derived from Liming Pelt Trimming and Tannin: A Response Surface Methodology Approach.

Md Faiaz Hossain, Md Abdul Mottalib, Md Abdul Goni, Trisha Paul

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Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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4 authors.

Md Faiaz HossainInstitute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.ORCID https://orcid.org/0009-0001-4239-6280

Md Abdul MottalibInstitute of Leather Engineering and Technology, University of Dhaka, Dhaka 1209, Bangladesh.ORCID https://orcid.org/0000-0002-5688-7689

Md Abdul GoniDepartment of Biological and Physical Sciences, South Carolina State University, Orangeburg, South Carolina 29117, United States.

Trisha PaulBangladesh Council of Scientific and Industrial Research, Dr. Qudrat-i-Khuda Road, Dhaka 1205, Bangladesh.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In leather industries, chromium compound is used in tanning and around 60-70% of the applied chromium is consumed by the leather fiber and the rest of them are being discharged as a mixed toxic effluent. This effluent is a major source of chromium contamination and generates significant amounts of toxic hexavalent chromium (Cr-(VI)) in wastewater. In this study, activated carbon derived from liming pelt trimmings, a byproduct of the leather industry, was utilized for the removal of Cr-(VI) from aqueous solutions. The process was optimized using Response Surface Methodology (RSM) with Central Composite Design (CCD), achieving a remarkable 99% Cr-(VI) removal efficiency under optimal conditions (initial concentration, 118.26 ppm; pH, 2.11; adsorbent dosage, 14.39 g/L; and time, 5.44 h). Adsorption kinetics followed a pseudo-second-order model with an

Identifiers

PMID42662186

DOI10.1021/acsomega.5c07264

PMCPMC13520004

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.