Willow trees from heavy metals phytoextraction as energy crops

作者：Syc Michal; Pohorely Michael^*; Kamenikova Petra; Habart Jan; Svoboda Karel; Puncochar Miroslav

来源：Biomass and Bioenergy, 2012, 37: 106-113.

DOI：10.1016/j.biombioe.2011.12.025

• Phytoextraction
• Willow
• Heavy metal
• Incineration
• Fluidized bed

Phytoextraction ability of some fast growing plant species leads to the idea of connecting biomass production with soil remediation of contaminated industrial zones and regions. This biomass will contain significant amount of heavy metals and its energetic utilization has to be considered carefully to minimize negative environmental impacts.
This study was focused on potential disposal methods of willow trees contaminated by heavy metals (Cd, Cu, Pb, Zn) with the emphasis on energetic utilization of biomass. Composting seems to be suitable pre-treatment method resulting in decrease of heavy metals leachability and biomass weight reduction. The possibility of willow trees application for energetic purposes was investigated and consequently incineration tests of willow trees samples in fluidized bed reactor were realized. Distribution of selected heavy metals in different ash fractions and treatment methods of produced ashes were studied as well.

• 出版日期2012-2