Application of shallow desalting technology in the boiler feed-water treatment
Received date: 2003-03-15
Online published: 2019-06-03
The technology of shallow desalting in the feed-water treatment is briefly introduced. This technology can upgrade the boiler soft-water and form shallow desalting water. The practice shows that the values of alkalinity and dissolved salt are reduced from 30 mmol/L and 3 800 mg/L to 8 ~ 10 mmol/L and 2 500 ~ 2 800 mg/L respectively, and the value of pH varies between 10 and 12, which meets the national water quality standard of the low-pressure boiler. At the same time, the pollutant discharge rate is reduced from 25% to 16.5%.So the technol-ogy of shallow desalting can work steadily, the steam quality can be improved and the running cost lowered.
Key words: shallow desalting; boiler softening
Shi Hui-gang, Shi Nai-ping, Wang Lian-jun . Application of shallow desalting technology in the boiler feed-water treatment[J]. Industrial Water Treatment, 0 : 64 -66 . DOI: 10.11894/1005-829x.2004.24(3).64
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