摘要
对某超临界压力直流炉使用EDTA-H_2SO_4加表面活性剂和卡普塔克斯缓蚀剂的酸洗工艺过程进行了介绍和技术分析,此工艺酸洗效果良好。冲洗水采用过滤沉降处理,对酸洗废液进行降解和蒸发。在原废液处理方法及工艺的基础上进行了改进,处理后的废液可以达到国家规定的排放标准。
Pickling process of a once-through boiler is introduced and analyzed. The pickling takes EDTA-H_2SO_4 plus surfactant and Captax corrosion inhibitor and pickling effect is satisfying. The washing water is filtered and sedimentate and pickling wastewater is degraded and evaporated. Improvement is made on the base of original wastewater treatment method,and the treated waste liquid can meet the national emission standards.
引文
[1]火力发电厂锅炉化学清洗导则:DL/T 794—2012[S].
[2]污水综合排放标准:GB 8978—1996[S].