Kalpetta is a town and a municipality in the Wayanad district, state of Kerala, India. The FSTP uses vermifiltration where worm-based sludge treatment is combined with water filtration to digest organic matter present in septage. The worms need only air, water, and sludge (food) to operate efficiently as a part of the vermifiltration system.
The Tiger Biofilter technique is based on vermifiltration. The technology uses a filtration arrangement consisting of Bio media to trap and treat impurities from faecal sludge / wastewater. The filtration medium is arranged in stacked manner with bio media on top. The top layer serves as active zone habitat for Bacteria and earth worms specifically bred for the purpose, while bottom layers provides structural support and free drainage for clear water. The trapped impurities (Organic matter) are then consumed by bacteria and earth worms as an energy source for metabolism and reproduction resulting in reduction in organic matter (measured as Biochemical Oxygen Demand).
Primove Infrastructure Development Consultants (2020). Operation and Maintenance Manual for the Wayanad FSTP Primove Infrastructure Development Consultants
Faecal sludge treatment processesGuidelines and manualsTrainer manuals (adult learning)
India