What is a major disadvantage of UV disinfection compared to chlorine?

UV disinfection is a method that uses ultraviolet light to inactivate harmful microorganisms in wastewater. One key disadvantage of this method is its high energy consumption. This is mainly due to the need for specialized lamps that emit UV light, which require substantial energy to operate effectively. In contrast, chlorine disinfection typically involves using readily available chlorine compounds that are easier and less energy-intensive to handle.

The reliance on electricity for UV systems can pose challenges in terms of operational costs, especially in facilities where power usage is a significant concern. Additionally, UV systems may require continuous monitoring and maintenance to ensure optimal performance, which can add to operational costs and energy demands. Thus, while UV disinfection is effective in microbial inactivation, the energy factor presents a notable disadvantage when compared to chlorine disinfection methods.