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INDUSTRIAL PURE WATER APPLICATION
Boiler Feedwater Treatment Solutions
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.
The diagram of BOILER FEED WATER TREATMENT
To the water running trough via boiler
BOILER FEED WATER TREATMENT
Project name: Hebei Jiheng Chemical Co., Ltd
service time:March,2006
Process:IX-2stage RO
Output 20m3/h qualified boiler feed water
Conductivity≤2μs/cm
PLC control panel
Workshop-RO plant
ION EXCHANGE
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 10MΩ•cm. the comparison between mixed bed and EDI is listed below.