Основни принципи на пречистването на сурови води

Photo: Основни принципи на пречистването на сурови води

Water preparation processes comprise a wide range of technologies and physical-chemical methods. Methods must be selected with a view to the purpose of the use of the prepared water – the preparation of potable water requires a different approach from, e.g., the preparation of cooling water, feed water for boilers, or process water..



Applications
• Potable water preparation plants for municipalities, waterworks companies – refurbishment, intensification
• Preparation of very clean water – e.g., electrical industry, pharmaceutical and food-processing industry, feed water for boilers
• Groundwater processing plants – in places where connection to the public distribution network is not possible
• Rinsing water – glassworks, automotive industry, electrical industry, plastic production
• Cooling water

Application of methods
In the process a wide range of physical-chemical methods can be used, e.g.:
• Coagulation, flocculation, sedimentation – elimination of turbidity and colloid substances
• Filtration – mechanical filters to remove rough particles, sand filters
• Membrane processes – ultra-filtration, nano-filtration, reverse osmosis
• Ion exchanger technologies – softening, removal of NO3 –, dealkalization, production of demineralised water
• Adsorption – arsenic removal, active carbon to remove foul odours and tastes
• Degasification – reduction of oxygen, CO2, and radon (mostly groundwater) content
• Oxidation, reduction – Fe removal, chlorination to reduce microbial propagation.

Applications
• Potable water preparation plants for municipalities, waterworks companies – refurbishment, intensification
• Preparation of very clean water – e.g., electrical industry, pharmaceutical and food-processing industry, feed water for boilers
• Groundwater processing plants – in places where connection to the public distribution network is not possible
• Rinsing water – glassworks, automotive industry, electrical industry, plastic production
• Cooling water