【作者】 黄玲；

【导师】 何绪文；

【作者基本信息】 中国矿业大学（北京） ， 环境工程， 2010， 博士

【摘要】 人工湿地是一项经济、效率高、实用性较强的污水处理技术。通过一定的工艺改进可以使其充分地净化污水中各种污染物。本文通过小试试验系统,以COD、NH3-N、TN、PO43-P和TP为研究对象,研究了钢渣静态吸附氨氮的性能和间歇运行的钢渣-灰岩垂直潜流人工湿地对高氮污水的长期降解效果。同时比较研究了间歇进水时间、正反粒径混合级配和正粒径填料结构、100%素土壤和40%土壤\60%水洗砂的表层填料、美人蕉和香蒲、四季以及一级和二级串联工艺对钢渣-灰岩垂直潜流湿地降解高氮浓度生活污水效率的影响。分析了湿地中各部分对氮磷元素的去除机理,建立了钢渣-灰岩垂直潜流人工湿地降解各类污染物的反应动力学模型。同时以出流时间和出流体积为监测对象,研究了正反粒径混合级配和正粒径两种填料结构对钢渣-灰岩垂直潜流人工湿地堵塞现象的影响。最后对冬季如何保证钢渣-灰岩垂直潜流人工湿地的处理效果进行了运行管理措施的改进,并比较研究了出水效果。结果表明,正反粒径混合级配的钢渣-灰岩垂直潜流人工湿地不但对生活污水有良好的处理效果,而且对湿地堵塞现象起到一定的缓解。更多还原

【Abstract】 Constructed wetland is an economic, high effective and practicable technology treating sewage. Through technics improved, it can purify various contamination fully.Making COD, NH3-N, TN, PC43-P and TP as the monitoring objective, the author of this paper study the performance of steel slag adsorbing ammonia nitrogen and the longtime degradation effect of intermittent running steel slag-limestone vertical flow constructed wetland treating the wastewater containning high nitrogen. At the same time different factors experiments impacting treatment effect were opereated, such as intermittent inflow time, mixed progressively-sized and anti-sized bed and pure progressively-sized bed, surface filling, plant, four seasons, second-order series craft and so on. The mechnism removing pollutants by different parts of steel slag-limestone VFCW was analyzed, and the reaction kinetic models of purifing pollutants were established. In addition, clogging problems caused by different bed structure and improving running conditions assuring outflow quality were researched in experiment.The results indicate that the steel slag-limestone vertical flow constructed wetland containning mixed progressively-sized and anti-sized bed is a high effectiveness and longevity wetland type.更多还原