陕西省大型燃煤电厂铅污染防控分析研究

Lead Pollution Prevention and Control Analysis of Large Coal-Fired Power Plant in Shaanxi Province

目的根据煤燃烧后产物中铅的迁移分布形态而提出防控重点。方法基于陕西省内大型燃煤电厂排放污染物中的铅排放进行监测分析,通过实验统计数据和现有文献资料。结果飞灰、炉中铅含量高于原煤,说明在燃烧过程中,铅在飞灰、炉渣中进一步富集,且从飞灰与渣中含量比值可知,铅更易于在飞灰中富集。结论对于我省燃煤电厂铅的防控,应主要控制炉渣及飞灰,按相关法律及技术规范的要求进行存放及处置,可以控制其对周围环境的影响。

Aim According to the distribution pattern of migration after coal combustion products made of lead and focus on prevention. Methods Based on monitoring of large coal-fired power plant in Shaanxi province pollutant emissions of lead emissions, through experimental statistics and the existing literature. Results Fly ash, coal is higher than the lead content of the furnace described in the combustion process, the lead is further enriched in the fly ash, slag, and the content of fly ash and slag from the known ratio of Pb concentration in the fly ash is easier. Conclusion For the prevention and control of coal-fired plants lead the province, slag and fly ash should be the primary control, in accordance with relevant legal and regulatory requirements technology for storage and disposal, you can control its impact on the surrounding environment.