Influence of zero-valent iron and rice husk on As and Cd uptake in rice

Zero-valent iron (ZVI) and rice husk (RH) have potential as adsorbents for heavy metals; however, their effects on plaque formation metal uptake by plants are still unclear. In this study, the impacts of ZVI, RH combinations root surface As Cd were investigated. A pot experiment was performed under waterlogged conditions using As(III)- or Cd(II)-spiked soil. The results showed that ZVI (0.05% 0.2%) with without significantly increased Fe contents in pore water. Under treatment, obviously content plaques reduced grains 67% 66% 19% 24%, respectively. markedly roots, shoots RH. 0.2%), grain 61, 62, 60, 68 69%. These findings suggest is effective hindering paddies contaminated Cd.