Process optimization of freeze desalination of brine using HybridICETM pilot plant

Caliphs M. Zvinowanda; Nomvuselelo N. Zikalala; Tabani Mtombeni; Jannie P. Maree; Wynand J. Louw; Frederick Oosthuizen

doi:10.1080/19443994.2013.822175

Process optimization of freeze desalination of brine using HybridICE^TM pilot plant

Caliphs M. Zvinowanda, Nomvuselelo N. Zikalala, Tabani Mtombeni, Jannie P. Maree, Wynand J. Louw, Frederick Oosthuizen

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Abstract: Freeze desalination of synthetic brines prepared from sodium chloride was investigated. Brine solutions of levels between 2.3% to 10% sodium chloride were used as feed to the plant operated in a batch and continuous mode. The effects of pump, gear motor speed, and differential temperatures on ice formation and purity were investigated. The HybridICE process produced ice of quality levels between 80–96% purity. It was observed that the pump speed was directly proportional to the effluent flow rate coming out of the heat exchangers. Generally, it was observed that the quality of product ice was higher at low to medium flow rates of feed. The gear motor speed variation was inversely proportional to effluent flow rate from the heat exchangers. The HybridICE was found to be a viable desalination technology in terms of quality of water produced, energy consumption, and its easiness to be incorporated into existing refrigeration systems.

Original language	English
Pages (from-to)	6315-6324
Number of pages	10
Journal	Desalination and Water Treatment
Volume	52
Issue number	34-36
DOIs	https://doi.org/10.1080/19443994.2013.822175
Publication status	Published - 15 Oct 2014
Externally published	Yes

Keywords

Brine
Desalination
Heat exchanger
Ice slurry
Impurity
R404A

ASJC Scopus subject areas

Water Science and Technology
Ocean Engineering
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1080/19443994.2013.822175

Cite this

@article{faa4c969512641989c9b1a0011c38eae,

title = "Process optimization of freeze desalination of brine using HybridICETM pilot plant",

abstract = "Abstract: Freeze desalination of synthetic brines prepared from sodium chloride was investigated. Brine solutions of levels between 2.3% to 10% sodium chloride were used as feed to the plant operated in a batch and continuous mode. The effects of pump, gear motor speed, and differential temperatures on ice formation and purity were investigated. The HybridICE process produced ice of quality levels between 80–96% purity. It was observed that the pump speed was directly proportional to the effluent flow rate coming out of the heat exchangers. Generally, it was observed that the quality of product ice was higher at low to medium flow rates of feed. The gear motor speed variation was inversely proportional to effluent flow rate from the heat exchangers. The HybridICE was found to be a viable desalination technology in terms of quality of water produced, energy consumption, and its easiness to be incorporated into existing refrigeration systems.",

keywords = "Brine, Desalination, Heat exchanger, Ice slurry, Impurity, R404A",

author = "Zvinowanda, {Caliphs M.} and Zikalala, {Nomvuselelo N.} and Tabani Mtombeni and Maree, {Jannie P.} and Louw, {Wynand J.} and Frederick Oosthuizen",

year = "2014",

month = oct,

day = "15",

doi = "10.1080/19443994.2013.822175",

language = "English",

volume = "52",

pages = "6315--6324",

journal = "Desalination and Water Treatment",

issn = "1944-3994",

publisher = "Elsevier B.V.",

number = "34-36",

}

TY - JOUR

T1 - Process optimization of freeze desalination of brine using HybridICETM pilot plant

AU - Zvinowanda, Caliphs M.

AU - Zikalala, Nomvuselelo N.

AU - Mtombeni, Tabani

AU - Maree, Jannie P.

AU - Louw, Wynand J.

AU - Oosthuizen, Frederick

PY - 2014/10/15

Y1 - 2014/10/15

N2 - Abstract: Freeze desalination of synthetic brines prepared from sodium chloride was investigated. Brine solutions of levels between 2.3% to 10% sodium chloride were used as feed to the plant operated in a batch and continuous mode. The effects of pump, gear motor speed, and differential temperatures on ice formation and purity were investigated. The HybridICE process produced ice of quality levels between 80–96% purity. It was observed that the pump speed was directly proportional to the effluent flow rate coming out of the heat exchangers. Generally, it was observed that the quality of product ice was higher at low to medium flow rates of feed. The gear motor speed variation was inversely proportional to effluent flow rate from the heat exchangers. The HybridICE was found to be a viable desalination technology in terms of quality of water produced, energy consumption, and its easiness to be incorporated into existing refrigeration systems.

AB - Abstract: Freeze desalination of synthetic brines prepared from sodium chloride was investigated. Brine solutions of levels between 2.3% to 10% sodium chloride were used as feed to the plant operated in a batch and continuous mode. The effects of pump, gear motor speed, and differential temperatures on ice formation and purity were investigated. The HybridICE process produced ice of quality levels between 80–96% purity. It was observed that the pump speed was directly proportional to the effluent flow rate coming out of the heat exchangers. Generally, it was observed that the quality of product ice was higher at low to medium flow rates of feed. The gear motor speed variation was inversely proportional to effluent flow rate from the heat exchangers. The HybridICE was found to be a viable desalination technology in terms of quality of water produced, energy consumption, and its easiness to be incorporated into existing refrigeration systems.

KW - Brine

KW - Desalination

KW - Heat exchanger

KW - Ice slurry

KW - Impurity

KW - R404A

UR - http://www.scopus.com/inward/record.url?scp=84908235627&partnerID=8YFLogxK

U2 - 10.1080/19443994.2013.822175

DO - 10.1080/19443994.2013.822175

M3 - Article

AN - SCOPUS:84908235627

SN - 1944-3994

VL - 52

SP - 6315

EP - 6324

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

IS - 34-36

ER -