旋流沉砂池和曝气沉砂池除砂效果对比  

APPLICATION PRACTICE OF ROTARY FILTER IN WASTEWATER TREATMENT PLANT

作　　者：张春艳 董涛 乔万玺 刘伟 

机构地区：[1]郑州市污水净化有限公司,河南郑州450000

出　　处：《水处理技术》2014年第2期54-56,共3页Technology of Water Treatment

摘　　要：为了研究不同类型的沉砂池对无机砂粒的去除情况，分别采集郑州市五龙口污水处理厂一期旋流沉砂池和二期曝气沉砂池去除的砂渣，以及一期和二期生物池放空时池底的污泥，测定4种样品中非挥发性悬浮固体（NVSS，以下简称砂粒）的含量，并用0．05～2．0min等不同筛孔直径的标准尼龙筛筛分。结果表明，一期生物池底泥中细砂的含量高于二期生物池，旋流沉砂池对粒径〉10．3mm的无机砂粒的去除率高于曝气沉砂池，曝气沉砂池对粒径为0．1mm左右和0．055mm左右无机砂粒的去除率高于旋流沉砂池。In order to study the case of inorganic sand removal using different types of grit chamber, the sand slag of rotational flow grit chamber and aerated grit chamber, as well as two biological pond bottom sludge samples were collected in Zhengzhou Wu Long Kou sewage treatment plant, and non-volatile suspended solids （NVSS, hereinafter referred to as sand） content in four kinds of samples was measured, and sieve the sand with a series of different mesh standard nylon from 0.05 millimeter to 0.2 millimeter. The results showed that the first bio-sand bottom mud was higher than the second biological pool, the removal ≥0.3 mm particle size of the inorganic grit in rotational flow grit chamber was better than aerated grit chamber, but the removal on the particle size of about 0.1 mm and 0.055 mm of the inorganic grit in aerated grit chamber was better than rotational flow grit chamber.

关 键 词：污水处理厂 旋流沉砂池 曝气沉砂池 粒径 

分 类 号：X703.1[环境科学与工程—环境工程]