Saturation states of carbonate minerals in a freshwater-seawater mixing zone of small tropical island’s aquifer

Mohd Harun Abdullah, and Sarva Mangala Praveena, and Ahmad Zaharin Aris, (2010) Saturation states of carbonate minerals in a freshwater-seawater mixing zone of small tropical island’s aquifer. Chinese Journal of Geochemistry, 29 (3). pp. 278-286. ISSN 1000-9426

[img]
Preview
Text
Saturation_states_of_carbonate_minerals_in_a_freshwater.pdf

Download (48kB) | Preview

Abstract

Groundwater is a crucial resource on the Manukan Island as it is the only source of freshwater available on the island. The aquifer has deteriorated to a high degree, during the last decade. Nine domestic wells were sampled from March 2006 to January 2007 to probe the hydrochemical components that influence the water quality. Geochemical data on dissolved major constituents in groundwater samples from the Manukan Island revealed the main processes responsible for their geochemical evolution. The results using statistical analyses, graphical method and numerical model output (PHREEQC) showed that the groundwater was chemically highly enriched in Na and Cl, indicative of seawater intrusion into the aquifer as also supported from the Na-Cl signature on the Piper diagram. From the PHREEQC simulation model, calcite, dolomite and aragonite solubility showed positive values of the saturation indices (SI), indicating supersaturation which led to mineral precipitation condition of water by these minerals.

Item Type: Article
Uncontrolled Keywords: Manukan Island, seawater intrusion, hydrochemistry, saturation index
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: SCHOOL > School of Science and Technology
Depositing User: Unnamed user with email storage.bpmlib@ums.edu.my
Date Deposited: 29 Nov 2016 03:30
Last Modified: 16 Oct 2017 06:00
URI: http://eprints.ums.edu.my/id/eprint/15036

Actions (login required)

View Item View Item

Browse Repository
Collection
   Articles
   Book
   Speeches
   Thesis
   UMS News
Search
Quick Search

   Latest Repository

Link to other Malaysia University Institutional Repository

Malaysia University Institutional Repository