粉煤灰磁聚物处理淠史杭灌区水体藻华的研究

Study on Removal of Algal Blooms in Pishihang Irrigation District by Magnetic Polymers from Coal Ash

针对淠史杭灌区水体藻华的现状,以质量浓度0.15 mg/L的聚二甲基二烯丙基氯化铵为桥架,复配质量浓度为40 mg/L粉煤灰絮凝剂(4 g粉煤灰、1 g磁粉和8 mol/L的盐酸1.5 m L),形成粉煤灰磁聚物,用其对淠史杭灌区藻华水体进行处理。结果表明:浊度、叶绿素a、COD、总氮、总磷的去除率分别为96.6%,95.5%,91.4%,67.4%,91.4%。絮凝剂投放量及絮体残渣的产量大幅度减少。实验证明了该方法的可靠性及高效性。

Based on the current situations of algal bloom in the water of Pishihang irrigation district, this paper makes magnetic polymer of coal ash by the compounds of 40 mg/L fly ash flocculant and 0.15 mg/L poly dimethyl diallyl ammonium chloride, and uses it deal with the algal blooms of Pishihang irrigation district. The result shows that the removal rate of turbidity, chlorophyll a, COD, total nitrogen and total phosphorus are 96.6%, 95.5%, 91.4%, 67.4%, 91.4%. The flocculant supply and the output of waste residue are greatly reduced. Therefore, this method is reliable and effective.