CSF is a process developed at the Indian Institute of Technology-Bombay, India. It works with formulated soil environment wherein fundamental processes of nature, viz., respiration, mineral weathering and photosynthesis are responsible for bioconversion. Suitable mineral constitution, culture containing native microflora, geophagus worm Pheretima elongata, and bio-indicator plants are the key components of the media ( Shankar et al., 2005). Bioconversion takes place by bacterial processing of organics and oxidizable inorganics via natural oxygen supply wherein mineral-weathering reaction serves to regulate pH while green plants serve as bio-indicators of the health of process at work. The highly oxic potential and near neutral pH together with ecology of environment leads to significant reduction in the pathogens ( Kadam et al., 2008).