Kerala’s Mobile Sanitation Engine

The Mobile Treatment Unit (MTU) operates on a robust solid–liquid separation and on-site treatment principle designed to handle septage directly at the point of generation. When desludging a properly constructed septic tank, the MTU performs a series of treatment steps that ensure both environmental safety and operational efficiency.

Solid–Liquid Separation: The incoming septage is first subjected to mechanical separation, where heavier solids and grit are isolated from the liquid fraction. This prevents blockages and facilitates efficient downstream processing.

Sludge Thickening: The separated sludge undergoes a thickening process to significantly reduce its moisture content. This process minimizes the sludge volume, making it easier and safer to handle, transport, or co-treat at a designated facility.

Effluent Treatment: The clarified liquid portion passes through an integrated treatment system - typically involving physical, biological, and/or chemical stages - to remove suspended solids, organic matter, and pathogens. The treated effluent thus meets safe discharge norms.

Safe Disposal or Reuse: The treated effluent can be safely disposed of on-site, as per regulatory guidelines, or reused for non-potable applications such as gardening, landscaping, or dust suppression.

Operational Capacity: Each MTU has a treatment capacity ranging from 3,000 to 6,000 litres per hour, enabling rapid, decentralized treatment of septage without the need for large-scale stationary infrastructure.