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粉煤灰的混酸改性及吸附性能研究 预览 被引量:1

Study on the preparation of mixed acid modified fly ash and its adsorption properties
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摘要 以粉煤灰为原料,用混酸酸溶制取改性粉煤灰吸附剂,并处理生活污水。结果表明:最佳酸溶时间为3h,其固体溶出率约25wt%;当改性粉煤灰的用量为100g/L时,吸附效果最佳,COD的吸附率达到75.4%,出水达到《城市污水处理厂污染物排放标准》(GB18918—2002)中的二级标准限值(100mg/L);改性后吸附能力提高了近三倍。 Modified fly ash adsorbent was prepared by mixed acid solution using fly ash as raw materials and the treatment of domestic wastewater were investigated. The results showed that the best acid-soluble time was 3h, its solid solubility was 25wt%; adsorption effect is the best when the modified fly ash adsorbent dosage was 100g/L; and the absorption rate of COD were achieved 75.4% .,which were better than level II for "city sewage treatment plant pollutant discharge standard " (GB 18918-2002). After the modification of fly ash, adsorption capacity were increased nearly three times.
作者 金星 廉今兰 JIN Xing, LIAN Jin-lan ( 1.College of Chemical and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China; 2.College of Environmental and Biological Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China)
出处 《天津化工》 CAS 2013年第2期8-9,共2页 Tianjin Chemical Industry
关键词 粉煤灰 混酸 改性 吸附 fly ash mixed acid modification adsorption
作者简介 金星(1970-),男,副教授、博士、主要从事光化学和电池材料等方面的研究。
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