Coagulants are a substance which cause particles in a liquid to curdle and clot together. Particles stay suspended in water rather than settling because they carry surface electrical charges that mutually repel each other. Coagulants carry the opposite charge to the particles and therefore cause the charge to ‘destabilise’ when added to the water; resulting in the particles clinging together.
Coagulants have applications across many industries; including mining operations and extractive industries, chemical & pharmaceutical, food & beverage, textile & leather, oil & gas drilling, aggregate recycling, potable water & municipal sewage treatment.
Here at SNF, our coagulants are mainly supplied to the wastewater treatment industry. Coagulation treatment chemicals are used in effluent water treatment processes for solids removal, water clarification, lime softening, sludge thickening, and solids dewatering.
One of our clients was a metal finishing company who needed help with settlement of solids from its wastewater. A two-step treatment of a pre-conditioning coagulant followed by flocculants resulted in gin-clear water, meaning that the company met its discharge consent and was not forced to turn away business. Read the full case study or read about how our products have helped other companies here.