alexa Biomass based activated carbon obtained from sludge and sugarcane bagasse for removing lead ion from wastewater.


Chemical Sciences Journal

Author(s): Tao HC, Zhang HR, Li JB, Ding WY

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Abstract Sewage sludge and bagasse were used as raw materials to produce cheap and efficient adsorbent with great adsorption capacity of Pb(2+). By pyrolysis at 800 °C for 0.5 h, the largest surface area (806.57 m(2)/g) of the adsorbent was obtained, enriched with organic functional groups. The optimal conditions for production of the adsorbent and adsorption of Pb(2+) were investigated. The results of adsorb-ability fitted the Langmuir isotherm and pseudo-second-order model well. The highest Pb(2+) (at pH = 4.0) adsorption capacity was achieved by treating with 60\% (v/v) HNO3. This is a promising approach for metal removal from wastewater, as well as recycling sewage sludge and bagasse to ease their disposal pressure. Copyright © 2015 Elsevier Ltd. All rights reserved. This article was published in Bioresour Technol and referenced in Chemical Sciences Journal

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