Adsorption of chromium(VI) for wastewater treatment by native sawdust

Authors

Julie Anne S. Ting ⋅ PH National Institute of Physics, University of the Philippines Diliman
Leo Mendel D. Rosario ⋅ PH National Institute of Physics, University of the Philippines Diliman
April M. Ulano ⋅ PH National Institute of Physics, University of the Philippines Diliman
Marko E. Arciaga ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roy B. Tumlos ⋅ PH Department of Physical Sciences and Mathematics, University of the Philippines Manila

Abstract

Adsorption of chromium(VI) for wastewater treatment using native sawdust derived from hardwood tanguile and softwoods palochina and coconut were investigated. Various parameters such as adsorbent surface area, adsorbent dose, adsorbate concentration, contact time, and pH were studied. Equilibrium was reached after 2 hours at a pH of 2. The Langmuir isotherm model was fitted with the adsorption data with R²=0.978±0.008. Softwoods were found to be better adsorbents, with higher maximum adsorption capacities for coconut (0.455) and palochina (0.444), than hardwood tanguile (0.387). Results indicate that HCl-treated coconut sawdust is the most efficient adsorbent with the highest chromium removal of 74.53% at equilibrium.

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Issue

2008: Proceedings of the 26th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2008-PB-22

Section

Poster Session B (Instrumentation, Environmental, and Theoretical Physics)

Published

2008-10-22

How to Cite

[1]

JAS Ting, LMD Rosario, AM Ulano, ME Arciaga, and RB Tumlos, Adsorption of chromium(VI) for wastewater treatment by native sawdust, Proceedings of the Samahang Pisika ng Pilipinas 26, SPP-2008-PB-22 (2008). URL: https://proceedings.spp-online.org/article/view/SPP-2008-PB-22.