硝酸酸化生物炭强化去除水中Pb（Ⅱ）和Cd（Ⅱ）的特性

万顺利,李燕,陈卫旸,唐贵,王玉

Enhanced removal of Pb(Ⅱ) and Cd(Ⅱ) from water by nitric acid treated biochar

Shunli Wan,Yan Li,Weiyang Chen,Gui Tang,Yu Wang

图4 溶液pH（a）、腐殖酸（b）、共存离子（c）对A-BC吸附Pb和Cd效果的影响

Fig.4 Effect of solution pH(a), humic acids(b) and coexisting cation(c) on the adsorption of Pb and Cd by A-BC