花生壳活性炭处理含铜离子废水

利用微波法制备花生壳活性炭吸附铜离子，扫描电镜发现活性炭表面出现许多细条纹，有大量微孔，平均粒径为50μm。活性炭中O与C结合，以CO2的形式释放出去，从而使其他元素的含量相对上升，其中以K元素含量上升最为明显。30℃时吸附量最高，在60min内达到单分子层吸附饱和，90min后开始多分子层吸附。在同等条件下，活性炭对...

Process of Waste Cupric Ion Water with Activated Peanut Shell Charcoal

Using the microwave method to prepare activated peanut shell charcoal to adsorb Cu2＋ . With scaning electron microscope, it was discovered that many thin stripes appeared at the activated charcoal surface, and there were massive pores with average grain diameter of 50μm. In the activated charcoal, the O and C combined and released in the form of CO2, thus caused other elements content to rise relatively, which led the K content to rise most obviously. The adsorptive capacity was the highest when temperature was 30℃, the monolayer adsorption was saturated in 60min and the polymolecular layer adsorption started after 90min. Under the same condition, the activated charcoal adsorption speed and the adsorptive capacity for the highly concentrated Cu2＋ solution were more than that of the low concentration solution, and the Cu2＋ quantity was more adsorbed obviously in the activated charcoal unit area. Responding speed and the adsorptive capacity were proportional. It showed to be the physical adsorption while the adsorption temperature was between 30 - 50℃, and the adsorption condition transformed to chemical adsorption when the temperature surpassed 60℃.