REN Li-ying¹, MA Jia-heng¹, XU Zhen², HU Chang-wei¹, WANG Fa-she³, GAO Xiao-hui¹, PANG Xue¹

(1. Shandong Provincial Key Laboratory of Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276000, China; 2. Qingdao Institute of Soil and Fertilizer, Qingdao 266071, China;
3. Colllege of Science, Linyi University, Linyi 276000, China)

Abatract: This study examines effect of Fe-Al binary oxide on the adsorption of Mn, Pb and Cd in soil. The results show that after the oxides were added to soil, Mn, Pb and Cd contents noticeably decreased. 14 days after Fe-Al binary oxide was added, the Mn, Pb and Cd content in the soil decreased by 64.8%, 52.9% and 89.51%, respectively, indicating that Fe-Al binary oxide is an effective adsorbent for Mn, Pb and Cd in soil. The fitting equation is established on the adsorption effect of Fe-Al binary oxide on Mn, Pb and Cd in soil. The Elovich equation and the functional equation fit better, followed by the parabolic diffusion equation.