可再生能源2013,Vol.31Issue(3):101-106,6.
吸附剂对垃圾焚烧中重金属分布规律影响的热力学模拟研究
Effect of adsorbent on distribution of heavy metals in incineration of municipal solid waste : thermodynamic equilibrium analysis
摘要
Abstract
Incineration of municipal solid waste(MSW) can result in the reduction of waste volume and emission and the recycling of energy. The migration and transformation of heavy metals(As, Cr, Cd and Pb) during MSW incineration through thermodynamic equilibrium analysis is studied. The influence of incineration temperature, excess air ration and addition of adsorbent (CaO,Al2O3 and SiO2) on the migration and transformation of heavy metals were investigated. The results showed that heavy metals are affected by incineration temperature and excess air ratio distinctly. As the temperature increased from 800 ℃, these heavy metals is mainly present as CrAsO4,AsO (g), CrO2, CdO, CdCl2(g) and PbCl2(g), respectively. The increase of excess air ration have little impact on the volatility of heavy metals. The heavy metals can be stabilized by the addition of adsorbent. The addition of CaO is beneficial for the stabilization of As, Cr and Cd. The addition of A12O3 and SiO2 is beneficial for the stabilization of As and Pb, respectively.关键词
垃圾焚烧/吸附剂/重金属/热力学Key words
waste incineration/ adsorbent/ heavy metals/ thermodynamic analysis分类
能源科技引用本文复制引用
郑安庆,赵增立,王小波,黄振,常胜,何方,李海滨..吸附剂对垃圾焚烧中重金属分布规律影响的热力学模拟研究[J].可再生能源,2013,31(3):101-106,6.基金项目
国家重点基础研究发展计划项目(2011CB201500) (2011CB201500)
广东省自然科学基金项目(10351007006000000). (10351007006000000)