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.

Which methods are used for preparing of demineralised water?

Demineralized water is usually made by using ion exchange, electrodeionization, or membrane filtration technologies, which can be more efficient for creating ultrapure water than processes such as distillation (where water is boiled in a still and condensed, leaving dissolved contaminants behind).

What is the process of making DM?

For Becoming a DM, firstly you have to pass the Union Public Service Commission (UPSC) exam and secure a rank within the top 100. Once you clear this exam you will become an India Administrative Services Officer (IAS). IAS Officer, after one or two promotions you will become a District Magistrate (DM).

What is the process of DM water 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.

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.

Which methods are used for preparing of demineralized water Mcq?

Application of Ion exchange Chromatography :- It is used for softening of water. It is used for demineralization of water.

How do you Demineralize water?

One of the best and most cost effective ways to produce demineralized water is to combine RO and DI systems. By passing the water first though carbon and sediment pre-filters and then a reverse osmosis membrane, very few contaminants and only a small number of mineral ions typically remain.

How is demineralized water made?

Demineralized water is made by passing the water through specially manufactured resins. The resin is designed to exchange ions in the water so that the final result leaves you with the chemical composition of pure water.

What is the principle of demineralization?

Demineralization involves the use of both cation and anion resins to produce ‘deionized water’. This can be achieved by a two-stage process in which the raw water is first passed through a column containing a strong cation resin (H) form, and then through a strong anion resin (Type I or II).