区域氮多部门代谢及回收技术应用影响分析

发布时间：2018-07-03 15:44

本文选题：氮元素 + 多部门系统分析　；参考：《中国环境科学》2016年10期

【摘要】：模拟了氮元素在水、能源、食品、林业、废物管理等多部门的代谢流动,以苏州为例构建了元素代谢系统分析模型,识别了氮元素代谢的重要部门和关键环节,针对性地提出尿源分离、污泥热解、高温热解、藻类净水等四种氮回收技术及组合,分析技术应用对城市氮元素代谢性能的影响.结果表明:苏州氮元素从外界输入160万t/a,90%来自煤炭和天然气;能源、食品和水部门是氮回收的关键环节;四项氮回收技术组合应用可实现氮元素整体代谢效率提至52%,优化调控效果最好,可促进低氮型社会的构建.
[Abstract]:The metabolic flow of nitrogen elements in water, energy, food, forestry and waste management was simulated. The analysis model of element metabolism system was constructed in Suzhou, and the important departments and key links of nitrogen metabolism were identified. Four nitrogen recovery techniques including urine source separation, sludge pyrolysis, high temperature pyrolysis and algae water purification were put forward, and the effects of the application of the technology on the metabolic properties of urban nitrogen elements were analyzed. The results show that 90% of nitrogen input from the outside world comes from coal and natural gas, energy, food and water are the key parts of nitrogen recovery. The combined application of four nitrogen recovery technologies can realize the overall metabolic efficiency of nitrogen element to 52. The optimal control effect is the best and can promote the construction of low nitrogen society.
【作者单位】：清华大学环境学院环境模拟与污染控制国家重点联合实验室;
【基金】：环境模拟与污染控制国家重点联合实验室专项(15L02ESPC) 国家自然科学基金优秀青年科学基金(71522011)
【分类号】：X703;X505

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