CAJ | 학술논문

以硅酸钠、硫酸锌、硫酸镁为原料,通过共聚法制备了无机高分子絮凝剂聚硅酸锌镁(PSMZS),研究了Na_2SiO_3的摩尔浓度,活化时间.Mg/Si、Zn/Si配比及絮凝剂的投加量对絮凝效果的影响,用X射线衍射(XRD)和电子扫描电镜(SEM)对该絮凝剂的结构及形貌进行了表征.结果表明:当Na_2SiO_3的浓度为0.4mol/L,硅酸活化时间为1.5 h,Si/Mg的摩尔比为1:5,Zn/Si摩尔比为O.5,絮凝剂投加量为25mL/L废水时,絮凝剂的电中和能力和吸附架桥能力最强,絮凝剂对含H-酸染料模拟废水的絮凝效果最好.
이규산납、류산자、류산미위원료,통과공취법제비료무궤고분자서응제취규산자미(PSMZS),연구료Na_2SiO_3적마이농도,활화시간.Mg/Si、Zn/Si배비급서응제적투가량대서응효과적영향,용X사선연사(XRD)화전자소묘전경(SEM)대해서응제적결구급형모진행료표정.결과표명:당Na_2SiO_3적농도위0.4mol/L,규산활화시간위1.5 h,Si/Mg적마이비위1:5,Zn/Si마이비위O.5,서응제투가량위25mL/L폐수시,서응제적전중화능력화흡부가교능력최강,서응제대함H-산염료모의폐수적서응효과최호.
Inorganic polymer flocculants, poly(magnesium silicate zinc sulfate) (PSMZS) were prepared by the copolymerization of sodium silicate with zinc sulfate and magnesium sulfate. The influences of SiO_2 concentration, activation time, Mg/Si and Zn/Si molar ratio and flocculant dosage on the flocculation efficiency were investigated. The structure and morphology of the prepared PSMZ flocculant were studies using XRD and SEM. The optimal preparation conditions for PSMZ are 0.4 mol/L of SiO_2 concentration, 1.5 hours of ageing time with 1: 5 : 0.5 of Si:Mg : Zn molar ratio. The optimal flocculant dosage was found to be 25 mL/L wastewater, where PSMZS has a banded structure featuring excellent flocculation efficiency.