Removal of Lead(II) Ions by Adsorption ontoBamboo Dust and Commercial Activated Carbons ‐A Comparative Study

Abstract

Studies on the removal of lead(II) ions by adsorption onto indigenously prepared bamboo dust carbon (BDC) and commercial activated carbon (CAC) have been carried out with an aim to obtain data for treating effluents from metal processing and metal finishing industries. Effect of various process parameters has been investigated by following the batch adsorption technique at 30±1°C. Percentage removal of lead(II) ions increased with the decrease in initial concentration and increased with increase in contact time and dose of adsorbent. Amount of lead(II) ions adsorbed increases with the decrease in particle size of the adsorbent. As initial pH of the slurry increased, the percentage removal increased, reached a maximum and the final solution pH after adsorption decreases. Adsorption data were modeled with the Freundlich and Langmuir isotherms, the first order kinetic equations proposed by Natarajan – Khalaf, Lagergren and Bhattacharya and Venkobachar and intra- particle diffusion model and the models were found to be applicable. Kinetics of adsorption is observed to be first order with intra-particle diffusion as one of the rate determining steps. Removal of lead(II) ions by bamboo dust carbon (BDC) is found to be favourable and hence BDC could be employed as an alternative adsorbent to commercial activated carbon (CAC) for effluent treatment, especially for the removal of lead(II) ions

Applications on agricultural and forest waste adsorbents for the removal of lead (II) from contaminated waters

“…Adsorption applications of onion skins have been carried out by various assays (Saka et al 2011a, b;Saka and Ş ahin 2011 AbdelGhani et al 2007AbdelGhani et al , 2008Abdel-Ghani and Elchaghaby 2007;Abdel-Halim et al 2003;Ahluwalıa and Goyal 2005;Benhimaa et al 2008;Chamarthy et al 2001;Dahiya et al 2008;El-Ashtoukhya et al 2008;Feng et al 2004;Fıol et al 2006;Ghaffar 2008;Goel et al 2005;Gong et al 2005;Gueu et al 2007;Han et al 2005;Hanafiah et al 2006;Hashem 2007;Ho and Ofomaja 2006;Ho 2005;Ilhan et al 2004;Imamoglu and Tekir 2008;Iyagba and Opete 2009;Kannan and Thambidurai 2007;Kannan and Veemaraj 2009;Kim et al 2006;Kiran and Akar 2005;Krishnan et al 2003;Liao et al 2010;Lugo-Lugo et al 2009;Martınez et al 2006;Meunier et al 2003;Naddafi et al 2007;Ö zdemir et al 2004;Qaiser et al 2009;Quek et al 1998;Sarı and Tuzen 2008;Sekar et al 2004;…”

Experimental Study to Remediate Acid Fuchsin Dye Using Laccase-Modified Zeolite from Aqueous Solutions

“…Kalkan E., et al may be chemisorption, which involves valence forces by sharing or electron exchange between the adsorbent and the adsorbate [45,46]. The pseudo-second-order kinetic model is given by the following equation.…”

Carboxylated carbon nanotubes as an efficient and cost-effective adsorbent for sustainable removal of insecticide fenvalerate from contaminated solutions

“…On the other hand, different kinds of sorbents were studied. In this, hence, areca (a food waste), Iranian natural zeolite, bamboo charcoal, MWCNT, and fly ash, using for heavy metal removal [32][33][34][35], were checked as adsorbent. The obtained results were shown that the time of the proposed method is much shorter (50 min), and the amount of sorbent is significantly lower than other ones (0.001 g), which is indicative of efficiency of CMNTs (Table 3).…”