中国电机工程学报2012，Vol.32Issue(32)：15-21,前插3,8.
炉内添加剂对垃圾焚烧过程中重金属捕集影响的试验研究
Experimental Study on the Capture of Heavy Metals by In-furnace Additives During MSW Incineration
摘要
Abstract
The capture effects of different in-furnace additives on Zn, Cu, Pb, Cd and Cr were studied during municipal solid waste (MSW) incineration. Atomic absorption spectrometer(AAS) and scanning electron microscope-energy dispersive spectroscopy(SEM-EDS) were used to detect the distribution of heavy metals in bottom ash and ash surface and to observe the surface morphology. The results show that: the bottom ash presents various surface morphologies which consist mainly of acicular, flake and particle structure and very few of melt. Mixed acids of HC1/HNO_3/HF/ HC1O_4 instead of aqua regia can be used for the digestion of bottom ash. The volatility of 5 heavy metals follows the sequence of Pb>Cd> Cu>Cr>Zn in the additives-free case and the existence of Si can reduce the volatile of Zn significantly. Zeolite and limestone show a certain capture efficiency of Zn and Cr while brick and glass powder show a good capture efficiency of Zn and Cu, but kaolinite shows no capture effect. Si-Al atomic ratio of 3:1 in waste components is the best ratio to reduce heavy metals volatility.关键词
生活垃圾/焚烧/重金属/添加剂/硅铝比Key words
municipal solid waste (MSW)/ incineration/ heavy metal/ additive/ the ratio of Si to Al分类
能源科技引用本文复制引用
王昕晔,黄亚继,仲兆平,牛淼淼,孙宇,张强..炉内添加剂对垃圾焚烧过程中重金属捕集影响的试验研究[J].中国电机工程学报,2012,32(32):15-21,前插3,8.基金项目
国家自然科学基金项目(51006023) （51006023）
国家重点基础研究发展计划(973计划)(2011CB201505) （973计划）
江苏省科技成果转化专项资金项目(BA2011031). （BA2011031）
