珊瑚砂和陶粒填料曝气生物滤池处理生活污水的对比

发布时间：2018-01-15 20:35

本文关键词：珊瑚砂和陶粒填料曝气生物滤池处理生活污水的对比　出处：《中国给水排水》2017年15期 　论文类型：期刊论文

【摘要】：将珊瑚砂作为曝气生物滤池(BAF)的填料,能有效节省岛礁生活污水处理设施的建设成本。以陶粒填料BAF为参照,在分析珊瑚砂理化性质基础上,对比研究珊瑚砂和陶粒两种填料BAF处理生活污水的效能,明确了珊瑚砂填料BAF的技术特点。珊瑚砂表面粗糙,其主要元素为Ca、O、C,适于作为BAF的填料。陶粒填料BAF较珊瑚砂填料BAF对COD和NH_3-N的去除效果更好,且前者较后者有更高的氧利用率。珊瑚砂填料BAF适于COD容积负荷较低的情况,具有良好的同步硝化反硝化性能。当COD容积负荷5.2 kg/(m~3·d)时,珊瑚砂填料BAF对COD的去除效果优于陶粒填料BAF。在水力负荷较低(0.2 m/h)的条件下珊瑚砂填料BAF中发生了NO_2~--N的积累,存在更多的短程反硝化过程。珊瑚砂填料BAF更适于生活污水的深度处理。
[Abstract]:Using coral sand as the filler of biological aerated filter (BAF) can effectively save the construction cost of domestic sewage treatment facilities on islands and reefs. The physical and chemical properties of coral sand are analyzed based on the reference of ceramsite filler BAF. This paper compares and studies the efficiency of coral sand and ceramsite BAF in the treatment of domestic sewage, and clarifies the technical characteristics of coral sand filler BAF. The surface of coral sand is rough, and its main element is CaOO _ (C). The ceramic filler BAF has better removal efficiency of COD and NH_3-N than coral sand filler BAF. The former has higher oxygen utilization than the latter. Coral sand filler BAF is suitable for lower COD volumetric loading. It has good simultaneous nitrification and denitrification performance when COD volume loading is 5.2 kg/(m~3 路d. The removal efficiency of COD by coral sand filler BAF is better than that of ceramsite filler BAF. The accumulation of NO_2~--N occurred in BAF of coral sand. There are more short-cut denitrification processes. Coral sand filler BAF is more suitable for advanced treatment of domestic sewage.
【作者单位】：后勤工程学院国防建筑规划与环境工程系;后勤工程学院学员旅;海军工程设计局;
【基金】：国家自然科学基金资助项目(21577174) 重庆市基础科学与前沿技术研究专项(CSTC2014jcyj A20004) 后勤科研项目(CHJ13J021)
【分类号】：X799.3
【正文快照】： 随着海洋岛礁开发和建设力度的加大,污染物产生量与排放量不断增加,岛礁环境污染问题也逐渐受到关注。妥善处理岛礁军民和旅游观光者产生的生活污水,是控制岛礁周边海域水环境污染的重要途径。生物膜法是广泛采用的污水分散式处理技术,具有对水质和水量的适应性强、除污效果好

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