农业环境科学学报Issue(7)：1392-1397,6.DOI:10.11654/jaes.2015.07.023
TTAC改性水稻秸秆处理染料废水的研究
Treatment of Dye Wastewater by TTAC-modified Rice Straw
摘要
Abstract
In recent years there has been an increasing interest in the use of crop residues for wastewater treatments. Here a new cationic adsorbent(MRS), was obtained from rice straw(RS)by modification with fourteen alkyl trimethyl ammonium chloride(TTAC), and was then examined its performance in decolorizing dye wastewater with batch experiments. The potential adsorption and decolorization mecha-nism of MRS were also investigated through SEM and FT-IR. Results indicated that the appropriate modification conditions were as follows:mass ratio(RS:TTAC)of 1:2, stirring rate of 400 r·min-1, temperature of 40℃, and pH=7.00. Compared with RS, MRS had an even and or-derly structure with more empty gaps, leading to a greater contact area and thus improving adsorption performance of MRS. FT-IR proved that TTAC modification had removed most of the hemicelluloses and lignin from RS, and successfully introduced the-NH+group in MRS, enhancing adsorption of anionic pollutants by MRS.关键词
水稻秸秆/十四烷基三甲基氯化铵/改性/染料废水Key words
rice straw/TTAC/modification/dye wastewater分类
资源环境引用本文复制引用
周道晏,赖星,万学,伍钧,赵旭,孟晓霞,赵丹,黄常红..TTAC改性水稻秸秆处理染料废水的研究[J].农业环境科学学报,2015,(7):1392-1397,6.基金项目
四川省科技支撑项目（2014NZ0045）；四川省环境保护厅重点项目 （）
