摘要
针对当前垃圾焚烧发电厂使用熟石灰作为烟气脱酸剂带来的成本高昂与环境污染等问题,并实现焚烧烟气净化从资源消耗型污染治理方式向以废治废的跨越,本文以某垃圾焚烧发电厂为例,通过现场工程实验研究了熟石灰、白泥-A和白泥-B对烟气中HCl与SO_(2)的脱除效率,讨论了脱除效率的影响因素,分析了白泥替代熟石灰进行烟气脱酸的经济性。结果表明:3种脱酸剂的烟气脱酸效率表现为熟石灰>白泥-A>白泥-B,白泥的理化性质、SO_(2)和HCl竞争关系及壳效应等因素是限制烟气脱酸效率的主要原因,尤其是脱硫效率,相比熟石灰降低了54%~60%,但仍可以使烟囱出口HCl与SO_(2)达标排放,是一种可行的以废治废方式,实验结果可为白泥在垃圾焚烧发电厂的应用提供案例支撑。
Aiming at the problems such as high cost and environmental pollution caused by the use of hydrated lime as flue gas deacidifier in the current waste incineration power plants,and realizing the leap of incineration flue gas purification from resource-consumptive pollution treatment mode to“treating waste with waste”,a waste incineration power plant was taken as a case in this study.The removal efficiency of HCl and SO_(2) from flue gas by hydrated lime,white mud-A and white mud-B was studied through field engineering tests,then the influencing factors of removal efficiency were discussed,and the economic efficiency of white mud replacing hydrated lime in flue gas deacidification was also analyzed.The results showed that the order of the flue gas deacidification efficiency by these three deacidifiers was hydrated lime>White mud-A>White mud-B.The physical and chemical properties of white mud,the competitive relationship between SO_(2) and HCl and the“shell effect”and other factors were the main reasons limiting its deacidification efficiency,especially the desulfurization efficiency,which decreased by 54~60%compared with hydrated lime,but it could still realize that the discharge of HCl and SO_(2) at the chimney outlet met the standards,which is a feasible"waste treatment"method.The test results can provide a case support for the application of white mud in waste incineration power plant.
作者
吴亮
李清伍
范家荣
谢冰
卢加伟
WU Liang;LI Qingwu;FAN Jiarong;XIE Bing;LU Jiawei(Grandtop Yongxing Group co.,Ltd.,Guangzhou 510430,China;South China Institute of Environmental Sciences(Research Institute of Eco-environmental Emergency),Ministry of Ecological Environment,Guangzhou 510535,China;Guangdong Province Engineering Laboratory for Solid Waste Incineration Technology and Equipment,Guangzhou 510655,China)
出处
《环境工程学报》
CAS
CSCD
北大核心
2024年第6期1703-1712,共10页
Chinese Journal of Environmental Engineering
基金
广州环投设计研究院有限公司2023年度科研项目(KYXMYX-2023-016)。
关键词
以废治废
垃圾焚烧发电厂
制碱白泥
烟气脱酸
经济性分析
treating waste with waste
waste incineration power plant
alkali white mud
flue gas deacidification
economic analysis
作者简介
第一作者:吴亮(1983-),男,硕士,研究方向为固废资源化利用,wuliang@gzepi.com.cn;通信作者:谢冰(1984-),男,硕士,工程师,研究方向为固废治理与环境风险防控,xiebing@scies.org。
