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一、悬浮液的沉降特性及其测定给水与排水的悬浮液中,有着很多不同大小、形状、重度的颗粒,这些颗粒各具有不同的沉速与数量,并带有凝集性,它在沉降过程中还将由于絮凝作用与干扰影响而改变沉速,这些属性的总和决定了悬浮液的沉降特性。由于一定颗粒的沉降规律不能反映悬浮液的沉降特性,所以在实际工作中我们所感兴趣的是研究悬浮液的沉降特性,据以设计和预测去除颗粒的大小、各级颗粒的去除率和悬浮物的沉淀百分值,因而在实用上常根据一定水质的悬浮液测定它的悬浮物的沉速分配。
First, the settling characteristics of suspension and its determination of water and drainage of the suspension, there are many different sizes, shapes, and heavy particles, these particles have different speed and number of sedimentation, and with agglutination, which in the settlement process It will also change the settling speed due to the effect of flocculation and interference, and the sum of these properties determines the settling characteristics of the suspension. Because the sedimentation law of certain particles can not reflect the sedimentation characteristics of the suspension, we are interested in the study of the sedimentation characteristics of the suspension in the actual work, according to the design and prediction of the size of the removed particles, the removal rate of the particles at all levels and the suspension The percentage of sedimentation, and therefore in practice, is often based on a certain amount of suspension of water quality to determine the suspension distribution of its suspension.