Can Distilled Water Remove Heavy Metals from Contaminated Sources?

Distillation Technique

Distillation is a simple and effective method for removing heavy metals from water. To set up a DIY distillation system, you will need a heat source, a distillation vessel, and a condenser. The contaminated water is heated, causing the water vapor to rise and pass through a condenser, where it is cooled and collected as distilled water. This process can be repeated multiple times to increase the effectiveness of the distillation.

Effectiveness Against Heavy Metals

Distillation is most effective against volatile heavy metals like mercury and arsenic, which have a boiling point below 100°C (212°F). In a single distillation cycle, up to 99% of mercury can be removed from contaminated water. However, non-volatile heavy metals like lead and cadmium require multiple distillation cycles to achieve significant removal. A minimum of three to five cycles is recommended to reduce lead levels to below 0.01 ppm.

DIY Distillation System Design

A basic DIY distillation system can be set up using a stainless steel or glass distillation vessel, a heat source like a stovetop or electric heating element, and a condenser made from copper or PVC pipes. The system should be designed to minimize contamination risk and maximize distillation efficiency. A ratio of 1:10 is recommended for the distillation vessel to water ratio to ensure optimal distillation performance.