Water Coagulation

Article: "Water coagulation: principle of operation and methods of carrying out the process"

Introduction

Water coagulation is the process of aggregation (fusion) of the smallest colloidal particles contained in water to the formation of flakes with certain physicochemical properties. Colloidal particles are usually insoluble in nature, which allows them to approach each other and then form aggregates of several hundred or thousands of microparticles. This process occurs relatively slowly, but its speed largely depends on the pH of the environment. The phenomena considered here are of great importance in practical human activity. This applies to drinking water treatment, water supply to populated areas and irrigation.

1. Chemical basis of the process

The main mechanism of floc formation during coagulation is as follows. At pH < pHя (равновесия) частицы образовавшегося в результате гидролиза альдегида (поливалентного иона