Abstract
Phytoextraction of heavy metal polluted environment generates large quantities of hyperaccumulators. How to dispose hyperaccumulators safely has been one of the most important issues in the phytoextraction field. In this paper, incineration technology was studied in order to investigate the feasibility of incineration technology on disposal of the arsenic-containing hyperaccumulator Pteris vittata L.. The tube furnace experiment examined the changes of arsenic in Pteris vittata L., studied the effects of factors including temperature, time, percentage of CaO on the incineration state. The results show that the most appropriate incineration condition was temperature of 400°C, time of 30min, percentage of CaO of 10%, which solved the problem to reduce biomass of Pteris vittata L. and volatilization of arsenic. The result provide insight into developing harmless disposal or resource-reuse-oriented methods for disposal of the plants used for large scale phytoremediation application.
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