燃煤电厂大气污染物超低排放技术验证评价

环境技术验证评价是新环境技术评价的有效方法之一。烟气超低排放是重点行业大气污染控制的发展趋势。开展燃煤电厂超低排放技术验证评价研究是环境技术验证评价在行业精细化应用的创新。在分析燃煤电厂大气污染物超低排放技术特点的基础上,运用层次分析法、调查研究法等构建了燃煤电厂超低排放技术验证评价指标体系,提出验证评价指标获取方法、测试周期和样本量、采样频率、指标评价方法。以超低排放组合技术"SCR脱硝+干式电除尘+石灰石-石膏湿法脱硫+湿式电除尘"为例进行应用验证,该技术利益相关方认为验证结果能够客观、科学、公正、有效地反映该技术的技术、经济、环境影响、维护管理等指标的真实情况。

RESEARCH ON VERIFICATION FOR AIR POLLUTANTS ULTRA-LOW EMISSION TECHNOLOGIES OF COAL-FIRED POWER PLANTS

Environmental technology verification (ETV) is one of the effective evaluation methods for new environmental technology. It is a development trend of air pollution control in key industries by adopting ultra-low emission technologies. The research on ultra-low emission technologies verification of coal-fired power plants is an innovation in the refined application of environmental technology verification in the industry. In this study, based on analyzing the characteristics of air pollutants ultra-low emission technologies for coal-fired power plants, the verification index system of ultra-low emission technology for the coal-fired power plants was constructed by using an analytic hierarchy process, investigation and research methods, etc., and the acquisition method of verification index, test cycle and sample size, sampling frequency as well as index evaluation method were proposed. The application verification was carried out by taking an ultra-low emission combined technology, SCR denitration+dry electrostatic precipitation+limestone-gypsum wet desulfurization+wet electrostatic precipitation, as the example. The results showed that the technology verification method could objectively, scientifically, and effectively reflect the real performance of the technology on aspects of economy, environmental impact, maintenance and management, etc.