Enhancement of phytoextraction efficiency coupling with low-dose biochar in arsenic-contaminated soil.

Phytoremediation of arsenic (As) by ( is a cost-effective and environmentally friendly method for restoring As-contaminated sites. However, the phytoextraction efficiency is low in some cases, such as clay soil, thus biochar was applied to enhance the efficiency of As extraction. The paper investigated the effect of biochar on soil characteristic, As mobility, and As uptake in with a 90-day greenhouse experiment.