Biodegradable waste management has assumed global significance. In order to manage the biodegradable waste generated in smaller housing societies, restaurants, a novel, compact helical shaped waste converter has been developed at Bhabha Atomic Research Centre (BARC). This allows decentralized processing of the biodegradable waste. The system has tremendous potential to process the waste as well as generation of good quality fuel and manure required for soil applications.

The name Shesha (शेष) has been given on the basis of the serpentine shape of the digester (its resemblance to the snake Shesha) as well as Sanskrit name of waste. The system has been patented with Indian Patent file No. 202121000812.

1. Helical shaped digester made from low cost PVC pipes.
2. Saving major cost of construction and MS dome required for conventional designs.
3. Suitable for skid mounting on a vehicle or wheels required for processing waste from smaller societies/residential complexes.
4. Have inbuilt suitability of biogas recycling for methane enrichment.
5. Suitable for online monitoring of process parameters.

Biodegradable waste management has assumed global significance. In order to manage the biodegradable waste generated in smaller housing societies, restaurants, a novel, compact helical shaped waste converter has been developed at NA&BTD, BARC. This allows decentralized processing of the biodegradable waste. The system has tremendous potential to process the waste as well as generation of good quality fuel and manure required for soil applications.

Process is amenable for different amount of waste processing like 10 kg, 25 kg, 50 kg, 100 kg waste processing.

1. The technology is suitable for processing small quantity of waste at the source.
2. Cost effective and economical process.
3. System requires very limited space for construction.
4. Saves the extra cost required for transport of waste for processing.

1. Solid waste management industry.
2. Housing societies, hotels and small establishments for managing their waste.

1. Helical shape digester made from low cost PVC pipes.
2. Design saving major cost of construction and MS dome required for conventional designs.
3. Design suitable for mounting on wheels/vehicle for processing waste from different societies/residential complexes.
4. Design has inbuilt capacity of biogas recycling for methane enrichment.
5. Design suitable for understanding different process parameters online, sampling from different locations, understanding the role of bacteria in the process etc.

1. A small scale fabrication facility required for assembling of different components required for setting up plant.
2. The facility should be equipped with different instruments like welding machine, drilling machine, MS fabrication facility etc.