Vacuum evaporation is used to increase concentration of substances dissolved in water. Process is based on dependency of boiling temperature of water on air pressure. As opose to clasical distillation, the air pressure in boiling chamber si decreased. This means, that boiling temperature of water is lower. Lower boiling temperature requires less intensive energy source for heating. That’s why operating costs are very low.
Vacuum evaporation has two outputs. The first one is a distillate, clean water, which can be either discharged or recycled back into the production process. The distillate has very low conductivity. The second output is a concentrate, concentrated solution. The concentrate can be further used if it is a product or it contains valuable substances. If the concentrate is further unusable, it must be proffesionally disposed.
Vacuum evaporation can achieve 95 % volume reduction of waste water. Therefore vacuum evaporators are necessity in Zero Liquid Discharge systems for water recycling in production process. There aren’t required any additive chemicals in vacuum evaporation, which is another reason why vacuum evaporators are very eco-friendly. Automatic 24/7 operation makes evaporators easy to use and maintain.
- Waste water volume reduction for 95 %
- Vacuum evaporation products recycling
- No additive chemicals
- Low energy consumption
Use of vacuum evaporators:
- Chemical industry
- Surface treatment
- Mechanical engineering
- Food industry
- Pharmaceutical industry
- Phtographic industry
- rinse water
- landfill leachate
- waste water from tumbling
- waste water from die casting
- baths from surface treatment
- machining and other emulsions
- exhausted developers and fixing agents
- concentrates from membrane separation processes
- washing water form reactors, mixers and tanks
- elauates form ion exchanger regeneration