基于粉煤灰的颗粒吸附材料研制及其吸附性能研究
Preparation and performance of granular adsorbent based on coal fly ash
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）。以亚甲基蓝吸附量为指标，采用正交试验法对煅烧温度、升温速率、保温时间、淀粉添加量等试验条件进行优化。确定了粉煤灰基质吸附材料的最佳制备条件煅烧温度600℃、升温速率1℃/min、保温时间1h、淀粉添加量30%。吸附试验结果表明：GAF-0的吸附量可达164mg/g，散失率为0.48%，4次再生的再生效率依次为98%、96%、95%、92%。
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 up, soaking time and adding starch on the adsorption of the methylene blue 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 time of 1℃/min, soaking time of 1h and adding starch of 30%. Adsorption test results show that the adsorption capacity of GAF-0 reached to 115mg/g, and the spallation loss ratio was 0.37%. Four times regeneration efficiency were 98%、96%、95% and 92%.
彭昌盛、谷庆宝、李丹丹、王胜光、王静、吴玉婷
环境污染、环境污染防治废物处理、废物综合利用非金属元素化学工业、非金属无机化合物化学工业
吸附材料粉煤灰正交试验亚甲基蓝
adsorbentcoal fly ashtaguchi methodmethylene blue
彭昌盛,谷庆宝,李丹丹,王胜光,王静,吴玉婷.基于粉煤灰的颗粒吸附材料研制及其吸附性能研究[EB/OL].(2013-02-04)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/201302-55.点此复制
评论