A study has found that the key to removing microplastics from drinking water may be found in an ancient plant called the moringa oleifera tree. The study found that it was more effective than aluminum sulfate, which is commonly used to remove microplastic from water. The plant was also more reliable in treating water at a variety of pH levels. This could offer significant operational advantages for water treatment facilities and reduce capital and operational costs. However, the study warned of the potential increase in dissolved organic carbon in natural coagulants, which could complicate downstream treatment processes.