油页岩干馏废水中氨氮利用的工程化研究  

Engineering Study on Utilization of Ammonia Nitrogen in Oil Shale Retorting Wastewater

作　　者：汤月亮 肖丽光 TANG Yueliang;XIAO Liguang(Fushun Mining Group Co.,Ltd.,Fushun 113006,China)

机构地区：[1]抚顺矿业集团有限责任公司,辽宁抚顺113006

出　　处：《化工技术与开发》2024年第8期70-73,共4页Technology & Development of Chemical Industry

基　　金：辽宁省“揭榜挂帅”科技攻关专项(2021JH1/10400024)。

摘　　要：针对油页岩干馏废水中高浓度氨氮的处理难题,本文采用吹脱-吸收法脱除油页岩干馏废水中的高浓度氨氮。工艺条件为:温度40℃,气液比2300∶1,用碱调节废水pH为10~11。经循环吸收可得到浓度15%以上的氨水。氨水可应用到油页岩干馏工艺的加热炉烟气脱硫单元,氨法脱硫后的副产品硫铵可用于矿山复垦绿化工程,由此开发了一条将污染物资源化利用的新型工艺循环处理路线。In response to the technical difficulties in treating high concentration ammonia nitrogen in oil shale retorting wastewater,it was proposed to use the blow off absorption method to extract and concentrate the high concentration ammonia nitrogen in oil shale retorting wastewater.The process conditions were:temperature was 40℃,gas~liquid ratio was 2300:1,pH of alkali adjusted wastewater was 10~11.The ammonia water with a concentration of over 15%was obtained through cyclic absorption.The ammonia water was applied to the flue gas desulfurization unit of the heating furnace in the oil shale retorting process,the by-product of ammonia desulfurization ammonium sulfate was used in mining reclamation and greening projects.A new recycling process for the resource utilization of pollutants was developed.

关 键 词：吹脱-吸收 页岩干馏废水 氨氮 氨法脱硫 硫铵 

分 类 号：X741[环境科学与工程—环境工程]