本文系统地分析了非凝聚性沉淀颗粒的速度频率分布曲线,并在此基础上提出了以去除沉淀颗粒群中占全部颗粒份额较大(对竖流式沉淀池)和最大(对平流式、辐流式沉淀池)的颗粒组分为依据来确定表面负荷,继而进行沉淀池设计的初沉池图解设计法。文中还给出了实际资料的算例。 This paper systematically analyzes the velocity and frequency distribution curves of non-agglomerative sediment particles, and on this basis, proposes to remove all particles in the sediment particles group with a large share (for vertical sedimentation tanks) and maximum (for advection, The particle composition of the radial flow sedimentation basin is based on a graphical design method for determining the surface loading and then for the sedimentation tank design. The article also gives an example of actual data.