发电厂污水脱硫处理工艺设计及效果分析  

Design and Effect Analysis of Sewage Desulfurization Treatment Process in Power Plant

作　　者：寇于亮 KOU Yuliang(Machinery Technology Development Co.Ltd.,Beijing 100044,China)

机构地区：[1]机科发展科技股份有限公司,北京100044

出　　处：《盐科学与化工》2023年第12期41-44,共4页Journal of Salt Science and Chemical Industry

基　　金：机科集团2022-2023年度科技攻关项目(JK22KJGG04)。

摘　　要：文章以某发电厂湿式烟气脱硫废水为试验对象,在原有污水处理设施基础上对工艺进行了优化,在出水箱前添加SBR反应装置,在实验室内进行了100 d的小试实验,装置内分时间段构建不同的好氧环境,分析改进工艺对废水中各污染物浓度去除效果。结果表明:通过构建周期性的厌氧/低氧环境后60 d内可试验该装置的启动,随后通过构建厌氧/缺氧/低氧环境,最终出水的PO_(4)^(-)-P浓度在0.5 mg/L以下、COD浓度在30 mg/L以下、氨氮浓度在0.2 mg/L以下,PO_(4)^(-)-P及氨氮去除率都在90%以上,COD去除率在85%以上。研究结果可为发电厂脱硫工艺后废水的处理技术优化提供理论参考。In this article,the wet flue gas desulfurization wastewater from a power plant was taken as the test object.The process was optimized on the basis of the original sewage treatment facilities.The SBR reaction device was added in front of the water tank.A 100-day small-scale experiment was carried out in the laboratory.Different aerobic environments were constructed in different time periods in the device,and the removal effect of the improved process on the concentration of each pollutant in the wastewater was analyzed.The results showed that the start-up of the device can be tested within 60 days after constructing a periodic anaerobic/hypoxic environment.Then,by constructing an anaerobic/anoxic/hypoxic environment,the final effluent PO_(4)^(-)-P concentration is below 0.5 mg/L,COD concentration is below 30 mg/L,and ammonia nitrogen concentration is below 0.2 mg/L.The removal rate of PO_(4)^(-)-P and ammonia nitrogen is above 90,and the removal rate of COD is above 85%.The research conclusions can provide a theoretical reference for the optimization of wastewater treatment technology after desulfurization process in power plants.

关 键 词：发电厂脱硫 废水 水质 SBR 

分 类 号：X773[环境科学与工程—环境工程]