某城市污水处理厂沉砂池设计

摘要

Several types of grit chambers commonly used in China and abroad in recent years includes: horizontal-flow grit chamber, aerated grit chamber, rotational flow grit chamber(Jeta and Pista), and so on were introduced in detail. On the basis of the comprehensive consideration of the designed water consumption, water quality, pollutants removal rates and sewage treatment process, Jeta grit chamber was finally chosen to be used in the sand sedimentation unit of the said plant; besides, the main design parameters of it were also analyzed and calculated.%详细介绍了目前国内外普遍采用的沉砂池的几种类型:平流式沉砂池、曝气沉砂池、旋流式沉砂池(钟氏及比氏)等.在结合某城市污水处理厂设计水量、水质、污染物去除率及污水处理工艺的基础上,沉砂单元确定采用钟氏沉砂池.分析计算了钟氏沉砂池的主要设计参数.