Study on the Particle Precipitation Phenomenon Based on the Boycott Effect

Abstract

There is a well-known Boycott effect in particle precipitation. In order to further study the Boycott effect, this passage first analyzed the force on the particle, drew a diagram of the liquid flow consistent with the actual situation, and analyzed its settlement process from the perspective of dynamics. Based on the PNK theoretical model, this passage derived the proportional relation function between the average settling velocity  and the vertical settling velocity , and obtain the relationship between the settling velocity and several variables. These variables include particle concentration range, particle radius, solvent viscosity coefficient, initial solvent volume concentration, container tilt angle, etc. According to this formula, passage designed related experiments to analyze the conditions of settlement strengthening effect, so as to further clarify the applicable conditions of settlement strengthening effect. It can be seen from the passage’s work that the experimental data is in good agreement with the theoretical value, which proves that this passage’s theory is very valuable, and this work also provides a certain reference value for industrial sewage settlement and river sand treatment.