Year: 2025
Type: article
Abstract: Saltwater intrusion is the phenomenon where seawater infiltrates inland areas during high tide, leading to soil salinisation with salt concentrations exceeding permissible levels and the depletion of freshwater resources.Given the increasing severity of saltwater intrusion today, coastal regions in our country are currently addressing this issue through a combination of saltwater prevention systems and early intrusion warning solutions.To ensure the effectiveness of these solutions, the method for determining salinity must be chosen to meet specific requirements.In this article, current exemplary methods and technologies for measuring water salinity, including hydrometer, chlorinity titration, a group of optical methods, and conductivity measurement, were systematically presented from principles and measurement techniques to the advantages and disadvantages of each method.The results show that the method of determining salinity based on electrical conductivity is the most suitable, as it offers several advantages such as low cost, high accuracy and reliability, and low energy consumption.The discussion section at the end of the article presents the authors' viewpoints and perspectives on current methods, as well as directions for future research and applications.
Authors: Nguyen Ngan Le, Van Ha Nguyen, Minh Thang Bui, Van Danh Tran, Hoang Nhat Vi Ngo, Minh Nhat Nguyen, Thi My Dung Dang, Duc Chanh Tin Doan, Mau Chien Dang
Institution: Vietnam National University Ho Chi Minh City
Language: English
Subfield: Waste Management and Disposal
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4413739831