Effect of humic acid on phytoremediation of heavy metal contaminated sediment

• DOI: 10.1016/j.hazadv.2023.100235
• Publication Date: 2023-01-11T08:06:38Z
• Authors: Yanhao Zhang; Guanghui Liu; Shiqian Gao; Zhibin Zhang; Lilong Huang
• Keywords: Typha; Amendment

The phytoremediation performance of Mentha Aquatic, Typha Orientails Presl, Tagetes Patula L. and Iris Tectorum Maxim was investigated by pot experiments to remediate the heavy metal contaminated sediment added with 1‰, 3‰, 5‰ humic acid (HA), respectively, over 60 days. results showed that four hydrophytes could get a better accumulation for Cd, Cu, Pb, Ni from sediments 3‰ HA as amendment. While, got maximum amount Pb As Maxim, optimum addition accumulate 10% increase compared control sediment. An appropriate amendment can decrease percent residual fraction improve sediments.