Optimization of Fe2+ Removal from Coal Mine Wastewater using Activated Biochar of Colocasia esculenta. (1st September 2017)

• Record Type: Journal Article
• Authors: Banerjee, Soumya; LaminKa‐ot, Augustine; Joshi, S. R.; Mandal, Tamal; Halder, Gopinath
• Is Part Of: Water environment research. Volume 89:Number 9(2017)
• Page Start: 774
• Page End: 782
• Publication Date: 2017-09-01
• Subjects: coal mine wastewater -- Colocasia esculenta -- activated biochar -- response surface methodology -- optimization -- Fe2+ removal; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.2175/106143017X14902968254791
• Languages: English
• ISSNs: 1061-4303

Abstract

ABSTRACT: : The present study investigates the sorptive removal of Fe 2+ from simulated coal mine waste water using steam activated biochar (SABC) developed from the roots of Colocasia esculenta . The process was optimized by response surface methodology (RSM) under the influence of pH, temperature, adsorbent dosage and contact time at a constant shaking speed of 180 rpm with an initial concentration of 3 mg/L. The uptake performance of the biosorbent was assessed following a 2 4 full factorial experimental matrix developed by central composite design approach. Adsorbent was characterised by SEM, EDAX, XRD and B.E.T surface area analyzer. Maximum removal of 72.96% of Fe 2+ was observed at pH 7.75, temperature 37.5 °C, adsorbent dosage 1.5 g/L for a time period of 180 mins. The study suggested that SABC prepared from roots of Colocasia esculenta could be used as an efficient and cost effective sorbent for removal of Fe 2+ from coal mine wastewater.