研究报告
史宸菲,薛瑞杰,李雨濛,贾淑敏,聂鹂尧,张满帆,王国祥.不同活性炭活化过硫酸盐的效能及机理的规律研究[J].环境科学学报,2018,38(4):1501-1508
不同活性炭活化过硫酸盐的效能及机理的规律研究
- Efficiency and mechanism of persulfate activation using different activated carbons
- 基金项目：国家自然科学基金青年科学基金（No.51608276）；江苏省自然科学基金青年项目（No.BK20150978）
- 作者
- 单位
- 史宸菲
- 南京师范大学环境学院, 南京 210023
- 薛瑞杰
- 南京师范大学环境学院, 南京 210023
- 李雨濛
- 南京师范大学环境学院, 南京 210023
- 贾淑敏
- 南京师范大学环境学院, 南京 210023
- 聂鹂尧
- 南京师范大学环境学院, 南京 210023
- 张满帆
- 南京师范大学环境学院, 南京 210023
- 王国祥
- 南京师范大学环境学院, 南京 210023
- 摘要：选取煤质活性炭（F400D）、木质活性炭（Norit）和椰壳活性炭（Youshi）作为过硫酸盐（PS）活化剂，通过动力学实验研究了不同活性炭对过硫酸盐的活化效能及机理，考察了氯化钠和碳酸钠对活性炭/过硫酸盐体系的影响.结果表明，3种活性炭/过硫酸盐体系均可实现橙黄G的高效去除，效能略有差异，依次为：F400D/PS > Norit/PS > Youshi/PS.活性炭对染料的去除包括吸附作用和活化过硫酸盐的氧化降解作用，吸附位点与活化位点在活性炭上具有不同的分布.活性炭/过硫酸盐体系对1~100 mmol·L-1氯化钠有很强的耐受作用，适用于高盐废水中有机污染物的去除.1~10 mmol·L-1的碳酸钠对体系有明显的抑制作用.
- Abstract：Three activated carbons, including coal carbon (F400D), wood carbon (Norit) and coconut carbon (Youshi) were selected as persulfate (PS) activators. Dynamic experiments to remove Orange G were conducted to investigate the activation efficiencies and mechanisms of these three carbon/PS systems. The effects of sodium chloride and sodium carbonate on the performances of the carbon/PS systems were also studied. The results showed that all the carbon/PS systems could remove Orange G effectively. The removal efficiency revealed small differences that F400D/PS > Norit/PS > Youshi/PS. Two processes, including the adsorption by activated carbon and oxidative degradation by activated persulfate, were confirmed to remove Orange G in a carbon/PS system. Activated carbon/PS system had a strong tolerance to sodium chloride (1~100 mmol·L-1) and was therefore suitable for the removal of organic pollutants in high-salt wastewater. Nevertheless, sodium carbonate (1~10 mmol·L-1) could suppress the Orange G degradation significantly.
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