廉价煤基活性焦对精制棉黑液吸附可行性实验研究

Feasibility study of low-cost coal-based activated coke adsorption of refined cotton wastewater

用煤基活性焦作为吸附介质对精制棉黑液进行了吸附研究,并对吸附前后的活性焦进行了扫描电镜观察。结果显示:煤基活性焦对精制棉黑液有很好的处理效果,最大单位吸附量可以达到106.4mg/g,COD最大去除率可以达到78.8%。扫描电镜观察表明活性焦吸附前后表面形态发生了明显变化,从而证明煤基活性焦对精制棉黑液来说是一种理想的吸附介质。

Activated coke （AC） ,a low--cost adsorbent made by lignite,is used as adsorbent in this paper to remove organic compounds from refined cotton wastewater. And the environmental scanning electron microscope （ESEM） is investigated to characterize the AC before and after adsorption. The results show that the AC is an ideal adsorbent and the COD removal efficiency reaches maximum of 78.8%. The ESEM photographs reveal that the surface of AC varies evidently after adsorption.