您的位置:首页  > 论文页面

粉煤灰原料颗粒吸附剂的制备及其吸附性能研究

发表时间:2013-12-31  浏览量:1488  下载量:634
全部作者: 王静,彭昌盛,谷庆宝,李丹丹,王胜光,吴玉婷
作者单位: 中国海洋大学环境科学与工程学院,中国海洋大学海洋环境与生态教育部重点实验室;中国环境科学研究院
摘 要: 以粉煤灰为骨料、凹凸棒土为粘结剂、淀粉为造孔剂,采用低温煅烧技术制备得到粉煤灰颗粒吸附材料(granular adsorbent based on coal fly ash, GAF)。以亚甲基蓝(methylene blue, MB)吸附量为指标,采用正交实验法对煅烧温度、升温速率、保温时间、淀粉添加量等实验条件进行优化。确定了GAF的最佳制备条件:煅烧温度600℃,升温速率1℃/min,保温时间1 h,淀粉添加量30%. 吸附实验结果表明:GAF-0的吸附量可达164 mg/g,散失率为0.48%,4次再生的再生效率依次为98%,96%,95%,92%.
关 键 词: 环境工程学;吸附材料;粉煤灰;正交实验;亚甲基蓝
Title: Preparation and performance of granular adsorbent based on coal fly ash
Author: WANG Jing, PENG Changsheng, GU Qingbao, LI Dandan, WANG Shengguang, WU Yuting
Organization: Key Lab of Marine Environmental Science and Ecology, Ministry of Education, College of Environmental Science and Engineering, Ocean University of China; Chinese Research Academy of Environmental Sciences
Abstract: In this paper, a granular adsorbent based on coal fly ash (GAF) was prepared from coal fly ash and attapulgite by adding starch as a pore-forming agent and calcinated at low temperature. The effects of calcinated temperature, heating rate, the time of thermal preservation and the amount of adding starch on the adsorption of the methylene blue (MB) were studied and the optimum preparation conditions were investigated using Taguchi method. Based on the visual analysis, the optimized conditions were calcinated temperature of 600℃, heating rate of 1℃/min, thermal preservation time of 1 h and the amount of adding starch of 30%. Adsorption test results showed that the adsorption capacity of GAF-0 reached to 164 mg/g, and the spallation loss ratio was 0.48%. Four times regeneration efficiency were 98%, 96%, 95% and 92%, respectively.
Key words: environmental engineering; adsorbent; coal fly ash; Taguchi method; methylene blue
发表期数: 2013年12月第24期
引用格式: 王静,彭昌盛,谷庆宝,等. 粉煤灰原料颗粒吸附剂的制备及其吸附性能研究[J]. 中国科技论文在线精品论文,2013,6(24):2367-2375.
 
0 评论数 0
暂无评论
友情链接