Abstract: In this work, a rotating crystallizer with anti-supercooling holes was introduced as a new technology for water purification of seawater through progressive freeze concentration, where pure water is produced in the form of ice crystal block, which leaves behind a higher concentration solution. This paper presents the investigations of the effect of initial concentration and rotation time and the efficiency of the system was reviewed based on the effective partition constant (K), desalination rate (Rd) and efficiency of concentration (E%). The system has achieved its best performance at low initial concentration which is 25g/L and rotation time of four hours.

• Publication Date: 18-Mar-2016
• DOI: 10.15224/978-1-63248-091-0-02
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Abstract: This paper discussed the hydrogeochemical properties of groundwater collected around coastal shallow aquifer in Kg Tanjung Labian FELDA Sahabat Lahad Datu, Sabah, Malaysia. In this study three boreholes were constructed namely BH-1, BH2 and BH3. The main objective of this study is to measure the concentration of major elements and selected trace elements in the groundwater samples; and to identify the minerals in soil samples. The groundwater samples were collected at the depth of 3 meter, 5 meter and 7 meter. Soil sample were collected for mineralogical identification using XRD method and indicates the appearance of quartz and calcite. The analysis of major elements and trace metals in water were carried out using ICP-OES instrument. The result of in-situ parameters analysis indicates that all groundwater samples collected from the Boreholes shows the very weak acidic to neutral pH values that ranged from 6.8 to 7.6. Dissolved oxygen (DO) concentrations were found to be relatively hig

• Publication Date: 18-Mar-2016
• DOI: 10.15224/978-1-63248-091-0-03
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