The sorption of heavy metals on thermally treated sediments with high organic matter content.
作者： Xudong Dong , Chi Wang , Hao Li , Min Wu , Shaohua Liao
DOI: 10.1016/J.BIORTECH.2014.01.006
关键词:
摘要: A sediment sample with organic matter higher than 60% was thermally treated and the sorption of Cu(II), Cd(II), Pb(II) investigated compared to evaluate potential use sediments high content produce biochar. Cu(II) Cd(II) generally decreased increasing pyrolysis temperature, concurred oxygen-containing functional groups adsorbents. Sediment particles pyrolyzed at 400 500 °C showed other temperatures. The small hydrated ionic radius may enable its close contact solid thus facilitated diffusion into pores formation cation-π bond aromatic structures generated by pyrolysis. heavy metals in comparable or natural adsorbents biochars from biomass, suggesting their possible significant impact on transport risk metals.
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