生物生态耦合工艺在铁路站房生活污水处理中的应用

Application of Biological Ecological Coupling Process in Domestic Sewage Treatment of Railway Station Building

随着我国铁路环保要求不断提高,铁路站房生活污水处理要求也更严格,选择合适的处理工艺很重要。采用生物生态耦合工艺的PTS光合生态型污水处理技术,针对北京某铁路站房的生活污水处理进行应用研究,该技术采用较低的设计容积负荷0.14 kgCOD/(m3·d),并利用菖蒲和美人蕉等具备较高污染物降解能力的水生植物,实现了不同气温条件下出水水质均符合DB 11/307—2013《水污染物综合排放标准》中A排放限值的目标,达到了净化水质、美化环境、设备高效低耗运行的目的。

With the continuous improvement of environmental protection requirements in China and the stricter requirements for domestic sewage treatment of railway station buildings, it is important to select the appropriate treatment process. The PTS photosynthetic ecological sewage treatment technology with biological ecological coupling process is subject to the application research for the domestic sewage treatment of a railway station building in Beijing. The technology adopts a low design volume load of 0.14 kgCOD/(m3·d), and makes use of aquatic plants with a relatively high pollutant degradation capacity, such as Acorus calamus L. and Canna indica L., achieving the goal that the effluent quality under different temperature conditions meets the discharge limit A in DB 11/307-2013 Integrated Discharge Standard of Water Pollutants, and the purpose of purifying water quality, landscaping and efficient and low-consumption operation of equipment.