期刊论文

中文

净水技术

1009-0177

2015

5

54-59,69

10.3969/j.issn.1009-0177.2015.05.010

[基金项目]国家科技支撑计划课题（2012BAC09804） 环境保护部行业公益基金课题（201309051）

本校为第一机构

研究了陶粒对废水中 Sb（Ⅲ）的吸附性能，并探讨了影响吸附的因素和吸附机理。结果表明当陶粒烧制温度为1000℃，振荡温度为25℃，废水 pH为自然 pH，陶粒投加量为8 g ／ L时，对50 mL 4 mg ／ L的 Sb（Ⅲ）溶液吸附100 min，Sb（Ⅲ）的去除率可达99．25％；反应符合二级动力学方程，相关系数（R2）为0．9987；陶粒吸附 Sb（Ⅲ）同时符合 Langmuir 模型和Freundlich模型，对 Sb（Ⅲ）的理论饱和吸附量为0．889 mg／ g。

The adsorption property of red mud ceramsite for Sb （ Ⅲ ） wastewater was investigated, and influencing factors and mechanism of adsorption were also analyzed. The results show that removal rate of Sb（ Ⅲ ） adsorbed in 100 min in 50 mL 4 mg/L Sb（ Ⅲ ） solution reaches 99.25%, when calcination temperature of ceramsite is 1 000℃, dosage of ceramsite is 8 g/L, reaction temperature is 25 ℃ and pH needn＇t adjust. The high correlation coefficient （R2 = 0. 998 7） agrees well with pseudo second-order kinetics. The adsorption of ceramsite on ...