Moving Bed Biofilm Reactors (MBBRs) are a type of wastewater treatment technology that utilizes biofilm to break down organic matter. In an MBBR system, plastic media with a large surface area is suspended in the reactor, allowing microorganisms to attach and grow. As the media moves with the flow of water, it enhances contact between the biofilm and the wastewater, improving treatment efficiency. MBBRs are often used in municipal and industrial applications due to their compact design and ability to handle varying loads. They can effectively remove pollutants such as nitrogen and phosphorus, making them a valuable option for meeting environmental regulations in wastewater management.