摘要
以实验室Al_(13)溶液在150℃的温度下,制备一系列不同加热时间的混凝剂。以27Al-NMR法测定的铝水解形态表明通过该方法制备的混凝剂中,有大量的Al_(30)存在,且Al_(30)的生成量与加热时间呈正相关。结合Al-Ferron所测定的铝水解形态,说明Al_(30)属于传统意义上的Alc范畴,其混凝活性通常被忽视。混凝实验结果表明,Al_(30)具有很强的电中和能力,对模拟水体中的颗粒物及有机物都有很好的去处。
A series of coagulant with different heating time has been prepared by using Al13 solution at the temperature of 150℃. Aluminum species detected with ^27 Al-NMR showed that Al30 existed in these coagulants and its amount has positive correlation with the heating time. Combined with the result of Al-Ferron reaction kinetics, we found that Al30 belonged to Alc while its coagulation performance was usually neglected. Finally, the coagulation results indicated that Al30 had strong charge neutralization capacity and it removed particles and organic matter to a large extent in the simulated water system.
作者
徐绪筝
迟娟
吕敏
邢晓丹
Xu Xuzheng;Chi Juan;Lv Min;Xing Xiaodan(Poten Environment Technology （Tianjin） Co., Ltd., Tianjin 300040;Poten Environment Group Co., Ltd., Beijing 100085, China)
出处
《广东化工》
CAS
2018年第9期93-95,共3页
Guangdong Chemical Industry
基金
天津市科委计划项目
<环氧丙烷类高浓度工业废水处理技术研发(17YFCZZC00490)>
天津市科委计划项目
<城市黑臭水体综合治理及水生态修复关键技术研究(17ZXSTSF00040)>
