A Review on Chlorination of Harvested Rainwater

The supply of safe drinking water to rural communities has always been challenging, unlike in most large cities where government authorities have constructed central systems. In many areas, primary sources such as surface and groundwater are at risk contamination with rapid agricultural industrial growth climate change-related issues. Rainwater harvesting is an ancient practice for communities, the momentum around its use continually growing recent years. However, lack sustainable treatment facilities on a small scale encourages dwellers consume harvested rainwater (HRW) without any even though untreated HRW may multiple health impacts cases. There several methods treating HRW. While chlorination extensively used disinfect volumes, e.g., systems), it not widely adopted scale. We present scoping review explore whether could be viable option disinfecting domestic level. It found that inadequate prior chlorine disinfection produce byproducts (DBPs). Limited data DBP concentrations available assess implications. Based this review, argued level when limitations associated method (such storage, appropriate technology, lessening DBPs by lowering total organic carbon before through other methods) resolved.