摘要
作为煤炭的燃烧废物粉煤灰(FA)量大且污染环境,为了达到"以废治废"的目的,本论文系统研究了粉煤灰对水中亚甲基蓝(MB)的吸附行为,主要从吸附平衡实验、粉煤灰的投加量、吸附温度、p H和色度等影响因素进行研究。研究结果表明:在p H为6.35条件下,当粉煤灰的投加量为50mg,温度为35℃,亚甲基蓝的去除率达到最大。吸附等温线可用Freundlich吸附等温式进行拟合,说明粉煤灰易于吸附亚甲基蓝,属于非均质吸附。
The fly ash, the burning waste of coal, is produced at large amount and is environmentally unfriendly. In order to achieve the goal of ＂using waste treat waste＂, this paper is a systematic study on the adsorption behavior of methylene blue onto the fly ash, focusing the influencing factors such as the equilibrium experiment of adsorption, the additive amount of the fly ash, the adsorption temperature, the p H value, and the chrima, and so on. The results showed that when the p H is 6.35, the fly ash quality is 50 mg, the temperature is set at 35 oC, the removal rate of the methylene blue reached the maximum. The result showed that at 25 oC, adsorption isotherm of methylene blue onto FA was modeled by Freundlich equation, and the methylene blue is easily adsorbed by fly ash. The adsorption behavior belongs to the heterogeneous adsorption.
出处
《工业技术创新》
2015年第6期644-647,共4页
Industrial Technology Innovation
关键词
粉煤灰
分析表征
亚甲基蓝
吸附
Fly ash
Analysis and characterization
Methylene blue
Adsorption
