A Comprehensive Review of the Latest Advancements in Controlling Arsenic Contaminants in Groundwater
Date
2023-02
Journal Title
Journal ISSN
Volume Title
Type
Article
Publisher
Multidisciplinary Digital Publishing Institute (MDPI)
Series Info
Water 15, 478.;
Scientific Journal Rankings
Abstract
Water contaminated with arsenic is a worldwide problem. This review presents the
arsenic contamination in groundwater, its sources, and possible health risk to humans. Groundwater
pollution is the most common route of inorganic arsenic exposure in humans. Arsenic concentrations
in different countries were analyzed and projected on a map. Because arsenic is widely spread
throughout the Earth’s crust, it is present in trace amounts in practically all waterways. Harmful
levels of this toxin have been identified in drinking water in some regions. For drinking purposes, the
majority of people use groundwater; excess arsenic levels in groundwater have been linked to a variety
of negative health impacts on people. Arsenic exposure is the world’s leading environmental cause
of cancer. The main aim of this review is to summarize the effective technologies to remove arsenic
from drinking water, such as ion exchange, coagulation/flocculation, and membrane technologies
like ultra-filtration and electrodialysis, helping to deal with the adverse effects caused by arsenic
exposure. All these technologies present different advantages and disadvantages. Electrocoagulation,
adsorption, and phytoremediation are the most efficient and cost-effective technologies. The removal
efficiencies of arsenic using these technologies and prospects were also included
Description
Keywords
arsenic;, removal technologies;, toxicity;, health consequences