期刊
JOURNAL OF CLEANER PRODUCTION
卷 66, 期 -, 页码 555-561出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2013.11.072
关键词
Bioethanol; FeCl3 pretreatment; Hydrolyzed rice straw; Adsorption; Methylene blue
资金
- Advanced Biomass RAMP
- D Center (ABC) of Global Frontier Project [ABC-2012053875]
- National Research Foundation of Korea [NRF-2012M1A2A2026587]
- Korea government Ministry of Education, Science and Technology (MEST)
The potential of lignocellulosic solid waste, generated from bioethanol production, as a biosorbent was investigated in this study. FeCl3-pretreated and enzymatically hydrolyzed rice straw (HRS) residue, after fermentable sugar recovery, was used to remove methylene blue (MB) dye from aqueous solution. The effects of different experimental factors, such as initial dye concentration (50-200 mg/L), adsorbent dosages (1-20 g/L), pHs (2.0-12.0), and temperatures (20-50 degrees C), on the adsorption capacity were studied. The Langmuir model could adequately explain equilibrium dynamics of the process (R-2 > 0.996) with a monolayer adsorption capacity of 52.9 mg/g. Moreover, the Pseudo-second-order model well described the kinetics of MB adsorption on HRS, implying that chemisorption is the rate controlling step. This study revealed that such lignocellulosic solid waste originating from a bioethanol facility can be a promising adsorbent in treating dye wastewater. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据