基于Aspen Plus的氨氮废水处理流程模拟  

Simulation of ammonia nitrogen wastewater treatment process based on Aspen Plus

作　　者：于国栋 胡德栋[1] 韩俊杰 YU Guodong;HU Dedong;HAN Junjie(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,Shandong,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《能源化工》2023年第3期60-64,共5页Energy Chemical Industry

摘　　要：超临界水氧化技术作为高级氧化技术对氨氮废水具有较好的处理效果,但超临界水氧化技术能耗较大,因此精确预测超临界水氧化工艺参数,进而较好地实现自热可以降低超临界水氧化技术的能耗。采用Aspen Plus软件对超临界水氧化工艺进行模拟,研究结果表明,在氧气过量、温度为600℃、压力为25 MPa、停留时间为200 s时,氨氮废水可以被彻底降解,在1 s内大部分有机物被降解,提高反应器和泵的㶲效率能大幅提高超临界水氧化技术的处理能力。As an advanced oxidation technology,supercritical water oxidation technology has good treatment effects on wastewater containing ammonia nitrogen.However,the energy consumption of supercritical water oxidation technology is relatively high.Therefore,accurately predicting the parameters of supercritical water oxidation process and achieving self-heating can effectively reduce the energy consumption of supercritical water oxidation technology.The Aspen Plus software is used to simulate the supercritical water oxidation process.The research results show that under excessive oxygen,temperature of 600℃,pressure of 25 MPa,and residence time of 200 s,ammonia nitrogen wastewater can be completely degraded,and most organic matter can be degraded within 1 s.Improving the exergy efficiency of the reactor and pump can significantly improve the treatment capacity of the supercritical water oxidation technology.

关 键 词：超临界水氧化 Aspen Plus 氨氮废水 㶲效率 

分 类 号：X703[环境科学与工程—环境工程]