污泥水磷和有机物同步混凝去除的多目标优化技术研究

发布时间：2019-01-27 07:40

【摘要】：通过引入多响应值的归一化评分法进行了污泥水磷和有机物同步混凝去除的多目标优化,并利用响应面(RSM)技术考察了Al/P比、聚丙烯酰胺(PAM)投加量和悬浮固体(SS)浓度对污染物去除的单独效应和联合效应.结果表明,复合投加聚合氯化铝和PAM能同步去除污泥水中磷和有机物,并改善沉降效果.归一化后单目标RSM优化显示,对污泥水中磷和有机物同步去除的贡献为Al/P比SS浓度PAM投加量.在最优条件Al/P比为3、PAM浓度为1.22 mg·L~(-1)、SS浓度为3.58 g·~(L-1)的条件下,正磷和总有机碳去除率分别为93.1%和53.9%.与多响应变量优化相比,引入归一化评分法有效解决了变量间数值量级差异的问题,使结果的分析计算变得简单方便.
[Abstract]:The multi-objective optimization of simultaneous coagulation removal of phosphorus and organic matter from sludge water was carried out by introducing a normalized score method with multiple response values, and the Al/P ratio was investigated by using response surface (RSM) technology. The single and combined effects of the dosage of polyacrylamide (PAM) and the concentration of suspended solid (SS) on the removal of pollutants. The results showed that the compound addition of polyaluminum chloride and PAM could simultaneously remove phosphorus and organic matter from sludge water and improve the sedimentation effect. After normalization, the single objective RSM optimization showed that the contribution to the simultaneous removal of phosphorus and organic matter in sludge water was the addition of Al/P to SS concentration PAM. Under the optimum conditions, the removal rates of phosphorus and total organic carbon were 93.1% and 53.9%, respectively, when the concentration of Al/P was 1.22 mg L ~ (-1) and 3.58 g ~ (L ~ (-1). Compared with the multi-response variable optimization, the normalized scoring method is introduced to solve the problem of numerical magnitude difference between variables effectively, which makes the analysis and calculation of the results simple and convenient.
【作者单位】：上海电力学院环境与化学工程学院;上海城投污水处理有限公司;
【基金】：国家自然科学基金(No.51408352)~~
【分类号】：X703

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