Computer simulation of the polydispersive sol coagulation process

Abstract

This work reports on a computer-simulated investigation of the coagulation rate for a system comprising spherical sol and coagulant particles. The discussed experiment positively verified the functioning of the simulated coagulation system, where the aggregation process proceeds in line with the particle-cluster model as a rapid and perikinetic coagulation process that satisfies the Smoluchowski equation. The rate of the simulated coagulation process satisfies kinetic equations for both first-order and second-order reactions. Selected concepts and models of the coagulation theory have been also verified.

Computer Simulation of Chemical Coagulation and Sedimentation of Suspended Solids

“…As part of the latter approach, the rate and efficiency of new inorganic coagulants and organic flocculants parameters are examined in a wastewater treatment plant [8,9]. Studies of coagulation, flocculation and sedimentation processes are usually carried out in natural systems, such as wastewater [10], model systems like silica suspensions [1,11,12], as well as computer-simulated systems [13][14][15][16]. The results of computer simulations support the development of fundamental databases, and the resulting conclusions render them an important supplement to applied research.…”

Modelling the structure of sludge aggregates

“…Image analysis is widely used in numerous scientific studies [ 8 , 9 ]. The structure of sludge is closely associated with the wastewater treatment process, so the course of coagulation–flocculation [ 3 , 10 , 11 ] or wastewater electrocoagulation [ 12–14 ] must permanently influence the resulting aggregate-flocs, even mechanisms of those processes differ from each other [ 15 ]. An advantage of electrocoagulation is also a possibility of disinfection of the wastewater treated [ 16 ].…”