knowledge management portal

The NFSSM Alliance works through its four taskforces guided by the strategic direction of the Steering Committee…

Events for December 2020


On-site sanitation systems refer to a decentralized system of collection, wherein human waste is collected in septic tanks connected to individual toilet structures, emptied at regular intervals by desludging trucks with a vacuum mechanism and transported to treatment plants. Septic tanks are underground tanks that separate solid and liquid waste; the solids settle out and are partially digested anaerobically, while the liquids are drained out through soakaways. The solid waste needs to be emptied periodically.

Off-site sanitation systems are centralized waste treatment systems where toilets are connected to an underground sewage pipeline grid that collects human waste that is flushed down from the connected toilet and disposed elsewhere. According to a CPCB Report, urban India generated about 62 million liters per day (MLD) of sewage and the sewage treatment capacity amounts to only 23,777 MLD in the urban areas.

Faecal Sludge and Septage Management is a collective term that refers to the collection, transport and treatment of fecal sludge from septic tanks or other on-site sanitation systems.

Faecal Sludge is the raw or partially digested combinations of excreta and blackwater, in a slurry or semi-solid form, with or without greywater. It is the solid or settled contents of pit latrines and septic tanks.

The liquid and solid material that is pumped from a septic tank after it has accumulated over a period.

Waste matter that is transported through the sewer. Normally a combination of blackwater and greywater

Blackwater is a term used to describe wastewater from toilets that is a mixture of urine, faeces and flush water along with toilet paper and anal cleansing water which contains pathogens.