Assessment of High-Volume SODIS Reactor under Sub-Tropical Climate Conditions in Bangladesh

Abstract

The Bangladeshi population currently lacks basic water coverage, with 98% of the population using groundwater for drinking. However, 86% of the poorest households show E. coli contamination, a concern for Wateraid Bangladesh. This research investigates the efficacy of Solar Water Disinfection (SODIS) as a sustainable and cost-effective method for purifying untreated large volumes of groundwater. SODIS has the potential to address the public health crisis caused by untreated and contaminated water, contributing to approximately 1.5 million deaths annually. The study aims to investigate exposure times and circumstances for SODIS, including salinity, pH fluctuation, and H202 levels, to guarantee effective water purification. By aligning with the Sustainable Development Goals of 2030, the research aims to develop sustainable water treatment solutions, particularly in sub-tropical regions facing waterborne diseases.