What is CPU in water treatment?
What is CPU in water treatment?
Condensate polishing typically involves Ion Exchange technology for the removal of trace dissolved minerals and suspended matter. During the process of steam generation in power plants, the steam cools and condensate forms. The condensate is collected and then used as boiler feed water.
What is DM water in power plant?
Demineralization is the process of removing mineral salts from Water by using the ion exchange process. Demineralised Water is Water completely free ( or almost ) of dissolved minerals as a result of one of the following processes : Distillation. Deionization.
What are the chemicals used in DM plant?
When resins are exhausted – the cations Resins are regenerated with Hydrochloric acid (Hcl) and the Anion resins are regenerated by caustic Soda (NaOH) solution. So the same resins can be used over and over again to produce the DM water.
What is the function of condensate polishing unit?
Condensate polishers are used to maintain a proper quality of water by removing impurities from return condensate. The decision to polish return condensate for re-use is purely economical. The condensate can be returned to an ultra pure state by simple polishing rather than using fresh make up process water.
How does a condensate polisher work?
The polisher removes impurities from the condensate return water— reducing scale, boosting heat-transfer efficiency, reducing damage that impurities can cause to expensive boiler equipment, and increasing the amount of condensate return water that can be reintroduced into the steam cycle.
What is the pH of DM water?
Maximum purity from such stills is usually 1.0 MΩ.cm) dissolving into the distillate the pH is generally 4.5-5.0. Additionally, you have to be careful not to re-contaminate the water after distilling it….pH-value.
| Beverages | pH |
|---|---|
| Wines | 2.3-3.8 |
| (Stomach acid) | 1.0-2.0 |
| (Battery acid) | 1.0 |
What is pH of DM water?
What is suspect condensate?
Suspect Oily Condensate Treatment. Return steam condensate from heaters may be accidentally contaminated with oil, due to spillage in heat exchanger equipment. Our unique Double Step Resin Coalescer is an equipment specifically intended for this purpose.
What is a polisher in a power plant?
Condensate polishers are resin-based ion exchange systems that are commonly used in power plant condensate systems to remove dissolved contaminants (chlorides and silica) and suspended contaminants (iron or copper oxide particulates).