复合介质生物滤器处理农家乐污水

发布时间：2018-05-26 09:25

本文选题：复合介质生物滤器 + 农家乐污水　；参考：《生态与农村环境学报》2016年03期

【摘要】：近年来,农家乐的迅速发展使区域污水排放量明显增加,对周边环境造成的污染也越来越大,已成为农村环境保护中亟待解决的问题之一。由于农家乐分布分散,污水量变化大,故难以用常规方法处理。构建了复合介质生物滤器,研究该反应器在农家乐污水处理中的效果。试验结果表明,该装置对COD平均去除率达90%以上,TN达80%以上,TP达70%以上;对氮、磷去除途径分析表明,氨氮的去除主要依赖于硝化/反硝化作用,沸石填料对氨氮的吸附效应强化了这一过程;磷的去除主要依赖于介质的固定。在填料中添加竹颗粒除了可以降低投资成本外,还可起到稳定COD并提高磷去除率的作用。复合介质生物滤器在污水处理过程中不需要动力且管理方便,是一种具有良好实用性的农家乐污水处理技术。
[Abstract]:In recent years, with the rapid development of Nongjiale, the discharge of regional sewage has increased obviously, and the pollution to the surrounding environment has become more and more serious, which has become one of the problems to be solved urgently in the protection of rural environment. Because the distribution of Nongjiale is scattered and the amount of sewage changes greatly, it is difficult to deal with it by conventional method. A composite medium biofilter was constructed to study the effect of the reactor in the treatment of Nongjiale wastewater. The experimental results show that the average removal rate of COD is more than 90% and the removal rate of TN is more than 80% and the removal pathway of nitrogen and phosphorus is more than 70%, which shows that the removal of ammonia nitrogen mainly depends on nitrification / denitrification. The adsorption effect of zeolite fillers on ammonia-nitrogen enhanced the process, and phosphorus removal mainly depended on the fixation of the medium. In addition to reducing the investment cost, adding bamboo particles to the fillers can stabilize the COD and increase the phosphorus removal rate. The composite medium biofilter does not need power and is easy to manage in the process of sewage treatment, so it is a kind of good practical Nongjiale sewage treatment technology.
【作者单位】：浙江大学环境与资源学院/污染环境修复与生态健康教育部重点实验室;
【基金】：浙江省科技计划(2012C23051) 国家科技支撑计划(2012BAC17B04) 农业科技成果转化资金(2013GB23600658)
【分类号】：X703

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