Iron chloride - a cheap coagulant in the process of precipitation of colloidal solutions

Colloidal solutions are, apart from suspensions and proper solutions, one of the most common types of water or wastewater pollution. They consist of impurity particles with dimensions from 10-9 to 10-7. Removal of such contaminants can be really difficult, if only because of the enormous surface forces causing electrostatic repulsion. In fact, the only method of purifying wastewater from colloids is the coagulation process, carried out with the use of specialized chemical compounds. Coagulation is nothing more than combining small particles into large ones. This process consists in introducing counter-charged ions into the structure, which significantly weakens the entire system - while the initial potential of such an ion of the colloidal solution has a potential of up to +70 mV, coagulation reduces it to zero (isoelectric point), thus eliminating the phenomenon of repulsion.

One of the most effective and at the same time the cheapest coagulation products on the market is iron (III) chloride, i.e. FeCl3, commercially referred to as PIX. This chemical compound contains the following components:

FeCl3 is ideal for wastewater treatment, both municipal and industrial (including the food and automotive industries). The use of coagulants allows the removal of sediments or heavy metals, and thus the treatment of process water. Use coagulants only and exclusively according to the manufacturer's indications and recommendations. The working concentration of coagulnate in the wastewater solution may be affected by such factors as pH of the solution, its temperature, concentration of orthophosphates and even exposure time or intensity of mixing.

High-quality iron and aluminum coagulants available at dostripark.com

*This article is for informational purposes only. The presented description, in particular the use of the products, is exemplary and constitutes non-binding information about the characteristics and possibilities of their use/application. In any case, before using the product, consult a specialist whether the specific use is safe and justified. We do not bear any responsibility for the use of the proposed solutions, even in very similar situations.