Comments on “an analysis of counterwashers for freeze-distillation desalination” by Shwartz and Probstein

Harriott, Peter; Leinroth, J. P.; Berg, R.L. Von; Wiegandt, Herbert

doi:10.1016/s0011-9164(00)80015-6

Cited by 2 publications

(1 citation statement)

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“…A thorough separation of ice and brine require accessory procedures other than simply draining off or normal filtration. The design of washing columns has been actively investigated (Shwartz and Probstein, 1968;Harriott et al, 1969) and used in pilot plants (Efrat, 2011). The ice slurry is introduced to the bottom of the washing column that is filled with clean water.…”

Section: Pivotal Role Of Washing In Fdmentioning

confidence: 99%

Freeze desalination of seawater using LNG cold energy

et al. 2016

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With the aid of cold energy from regasification of liquefied natural gas (LNG), freeze desalination (FD) is an emerging technology for seawater desalination because of its low energy characteristics and insensitivities to fouling problems. This work aims to investigate the major operating parameters of FD such as coolant temperature, freezing duration, supercooling, seeding, agitation, crystallizer material and subsequent washing procedure on ice production and water quality. It was found that the optimal freezing duration per batch was 1 h for an iron crystallizer and 1.5 h for a glass crystallizer. The optimal coolant temperature should be around -8 °C. The optimal amount of washing water to clean the raw ice was about 50 wt% of the raw ice. Over 50 wt% of the feed could be recovered as raw ice within 1 h, which means an overall ice recovery rate of higher than 25% (of the original seawater), considering the consumption of washing water. Both artificial and real seawater were tested under the optimized conditions. The total dissolved solid in the product ice was around 300 ppm, which met the World Health Organization (WHO) potable water salinity standard of 500 ppm. Therefore, the process parameters optimized in this study can be directly used for the freeze desalination of seawater.

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Section: Pivotal Role Of Washing In Fdmentioning

confidence: 99%