提取腐殖酸后的褐煤残渣对水中Cr（Ⅵ）的吸附研究

王茁伊,付鹏,王润琪,刘鹏,于妍

Study on the adsorption of Cr （Ⅵ） in water by lignite residue after humic acid extraction

Zhuoyi WANG,Peng FU,Runqi WANG,Peng LIU,Yan YU

图4 吸附时间对Cr（Ⅵ）去除效果的影响

Fig. 4 Effect of reaction time on removal effect