Vaporization of phosphorus and heavy metals during sewage sludge combustion
In this paper, the vaporization of phosphorus and heavy metals with and without additives (CaO and HCl) during sewage sludge combustion were compared. In addition, the influence of combustion atmosphere on the behavior of phosphorus and heavy metals was also considered. The experimental results demonstrated that HCl could promote the vaporization of heavy metals and phosphorus during sewage sludge combustion. While Cao additive stabilized heavy metals and phosphorus in the ashes. Meanwhile, heavy metals and phosphorus in the slag increased with the increase of CaO ratio. It was also found that the optimum HCl/sludge and CaO/sludge ratio for recovery phosphorus were 3.0 and 0.2, respectively. Lastly, the difference of the TG-DTA curves with and without additives was discussed.
Heavy metals Oxidation Phosphorus Reduction Sewage sludge TG-DTA
Jun HAN Masami FURUUCHI Mitsuhiko HATA Guanghui WANG
College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan, 4 Graduate School of Natural Science and Technology, Kanazawa University, Ishikawa 920-8667, Japan
国际会议
北京
英文
216-225
2007-08-20（万方平台首次上网日期，不代表论文的发表时间）