粉煤灰陶粒处理初期雨水的吸附研究

发布时间：2017-12-31 10:12

本文关键词：粉煤灰陶粒处理初期雨水的吸附研究　出处：《应用化工》2017年11期 　论文类型：期刊论文

【摘要】：选用一种粉煤灰陶粒作为吸附剂,考察两种吸附时间和两种质量下对初期雨水中的COD、TN、TP以及这三种污染物质混合下正交实验吸附效果。结果表明,两种陶粒质量和两种吸附时间下COD、TP和TN剩余浓度差异不是很大,但三种物质去除率总体趋势是低浓度时去除率较高,陶粒质量大和吸附时间长时TP去除率均较大,高TN浓度时,两种陶粒质量和两种吸附时间下去除率趋于相同;以COD、TP和TN去除率作为正交实验指标时,三个因素的主次关系和最佳水平组合无明显的变化规律,粉煤灰陶粒在含有COD、TP和TN的混合液中对各实验指标吸附效果无明显干扰。
[Abstract]:A kind of fly ash ceramsite as adsorbent, COD, on the initial rainwater in the study of two kinds of adsorption time and two kinds of quality TN, TP and the three kinds of pollutants under the mixed orthogonal experiment. The results show that the adsorption effect, two kinds of ceramic quality and two kinds of adsorption time of COD, TP and TN residual concentration the difference is not great, but the three material removal rate of the overall trend is low when the concentration of high removal rate, high quality ceramic and the adsorption time long when the removal rate of TP was large, high concentration of TN, two kinds of ceramic quality and two kinds of adsorption time on removal rate tends to be the same with COD, TP and TN; the removal rate of the orthogonal the experimental index, three factors of the primary and secondary relationship and the best combination did not change significantly, fly ash ceramsite with COD, no obvious interference on the adsorption effect of each experimental index mixture of TP and TN.

【作者单位】：南京林业大学土木工程学院;
【基金】：住房和城乡建设部科学技术计划项目(2016-K4-045) 江苏省大学生实践创新训练计划项目(201710298026Z) 江苏高校优势学科建设工程项目资助
【分类号】：X52
【正文快照】： 初期雨水是指从降雨形成地面径流开始,前12.5 mm(1/2英寸)降雨形成的径流量[1]。初期雨水溶解了空气中的酸性气体、悬浮物,冲刷了地面上的油脂、重金属和其它杂质,使得初期雨水含有大量的重金属、SS、COD、TN和TP等污染物质[2]。所以,初期雨水需经过处理以后才能排入城市河流,

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