The application of MEMS flash in reuse of alkalinous waste water

✍ Scribed by Zhang Hong; Zheng Xuan-rong; Lin Ji-fang

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 372 KB
• Volume: 56
• Category: Article
• ISSN: 0011-9164
• DOI: 10.1016/0011-9164(85)85019-0

✦ Synopsis

The waste water o± mercerization in dying industry contains about 4.75% NaOH.

It is require~ to be concentrated to 23.7% for reuse. The MEMS flash has been used to treat this waste water in a plant for six years.

The unit consists o1 ~ two effects and fifteen stages. It is much more simpler in construction and less ±ikely to deposit scale on the heating surface than conventional multi-effect evaporation.

In comparison with the common MSF, it gives the advantages of higher concentration ratio and thermal efficiency into full play. The performance ratio is about 3.8. Not only alkali, but also desalination water can be reused.

By the end of the first year of operation, the plant had recovered the capital invested.

in this paper, the application of MEMS flash for treatment of alkalinous waste water is described.

We have recommenaed the optimum stage number and the distribution of stages in two el fects, whicn can serve as a reliable basis for successful oesign.