小型地下式污水处理厂设计中的关键问题分析

Key issues in design of small underground wastewater treatment plants

对小型地下污水处理厂的特点和设计要点进行探讨,小型地下污水处理厂地面层面积小,地面设施和建筑占用率高,难以作为公共绿地使用,在设计中应摆脱大型地下污水处理厂将地面层整体利用为绿化公园的思路,发挥其规模小、灵活性高的优势,采用合理加盖形式降低地下结构埋深,提高集约化程度,统筹考虑地面建筑与景观的关系,节约用地,减少造价,提高环境效益。

This paper discussed the features and design principles of small underground wastewater treatment plants （WWTPs）. Since small underground WWTPs have small ground floor area and high ground building density, their ground level can hardly be used as public green fields. Therefore, the design of such plants shall focus on their advantage of smaller size and flexibility, reducing underground structure depth with proper covering method, increasing the degree of intensification, and taking overall consideration of ground building and landscape, so as to save land use, construction cost, and improve environmental benefit.