Simulation of stripping process for high-concentration ammoniacal nitrogen landfill leachate based on Aspen Plus software
MA Nan-ke, LIU Zhi-yang, YANG Chun
Hunan Provincial Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
Abstract: Aspen Plus software is used to simulate the stripping process for landfill leachate with high-concentration of ammoniacal nitrogen (30 000 L·h-1,and 8 000 mg·L-1).The influences of the number of theoretical plate,reflux ratio,steam flow and alkali dosage on the treatment effect of landfill leachate and the removal of ammoniacal nitrogen are explored.According to the treatment index of landfill leachate and the cost of investment and operation,these operation parameters are optimized.The results show that under the optimized operation parameters,the flow of NH3 at the top of stripper tower is 219.31 kg·h-1,the pH of discharge liquid at the bottom of stripper tower is 7.562,and the removal of ammoniacal nitrogen is 96.3%.The results provide a reference for the practical industrial treatment of waste leachate containing high concentration of ammoniacal nitrogen.
马楠柯, 刘志洋, 杨纯. 基于Aspen Plus的高氨氮垃圾渗滤液汽提处理工艺模拟[J]. 现代化工, 2022, 42(10): 217-222,227.
MA Nan-ke, LIU Zhi-yang, YANG Chun. Simulation of stripping process for high-concentration ammoniacal nitrogen landfill leachate based on Aspen Plus software. Modern Chemical Industry, 2022, 42(10): 217-222,227.
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