Project Description

Commercial Boiler feed water treatment system with RO

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Boiler feed water purification, specifically for steam generation requires high purity water, different depending on regions and scales. The feed water quality requirement varies depending on the manufacturer/generator, as well as the boiler model. Poor water quality or system design results in boiler life span shortening. The design of the water treatment system is a function of the water quality that varies dramatically depending on the water source and region.

The mature process for small to large scale boiler is RO+MB or RO+EDI, we can provide boiler feed water treatment systems for these water use:

  • Marine boiler feed water system
  • Power plant boiler water treatment
  • Paper mill boiler water treatment system
  • Textile mill boiler water treatment system
  • Food industry boiler water supply system

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Boiler Feed Water Treatment Process:

The main contaminants to remove are hardness, iron, silica, sodium and chlorides. The basic pretreatment process removes the suspended matter and particles before reverses osmosis and finally deionized in mixed bed or EDI device. RO pre-treatment commonly consists of coagulation, flocculation, clarification, sand filtration, ultrafiltration, etc. Essentially 100% of the suspended particles must be removed in the pre-treatment. RO removes approximately 98% of TDS in raw water.

Boiler feed water purification process

Mixed bed or EDI is used at the last step to remove the residual ions, producing ultrapure water for feeding boiler. Resistivity of product water is usually over 10M?·cm. the comparison between mixed bed and EDI is listed below.

Principle Advantage Disadvantage
Mixed bed Ion exchange 1. Low input
2. Simpler pretreatment
3. Stable product water quality
4. Less water waste
1. Chemical consuming
2. Higher labor cost
EDI Ion exchange
+ electro deionization
1. space saving
2. higher water purity
3. non chemical consumption
4. automatic runningless labor cost
1. High input
2. High requirement on pretreatment
3. 10% water waste
4. Electricity consumption

According to the information customer provided we help design the tailored water purification system for customers, taking consideration of invest, space, product quality, etc.

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To design water purification solution for your individual requirement, please fill the form to tell us the real water condition. If you do not know all of these, please help to contact us here.

Product Usage

  • Cosmetic industry
  • Food and beverage , pure water industry
  • Electronics industry
  • Battery industry
  • Solar battery production
  •  Preparation of concrete admixture
  • Textile printing and dyeing industry:
  • Ultrasonic cleaning with pure water
  • Coating industry
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