How does a modad sewer system work?

A MODAD (Modular Activated Design) sewer system is a decentralized wastewater treatment system that utilizes a series of modular components to treat sewage. It typically includes a series of tanks or reactors where sewage undergoes biological treatment processes, such as aeration and filtration, to remove contaminants. The treated effluent is then discharged into a drain field or water body, often meeting local environmental regulations. This system is advantageous for areas where traditional centralized sewage treatment is impractical or too costly.