Type Of Latrine And Method Of Disposal Of Night Soil
There are three prevalent systems of disposal of human wastes, viz.
Underground sewerage,
Sanitary water flush latrines with individual disposal systems, like septic tank, leaching cess pool and collecting well, and
Dry type of latrines with manual scavenging
Types Of Latrine: Water Closet:
Is a system of underground sewerage provided for the street sewerage which are connected to the sanitary latrines constructed in the houses having water closets and fitted with flushing cistern (or hand flushing).
Through this sewer the faecal matter is transported without the need for scavenging. This system generally exists in cities and big towns.
Pit Latrine:
Where the streets sewer does not exist these sanitary water flush latrines are connected to a local septic tank with a sub-soil dispersion system or a leaching pit.
Here the liquid wastes from the water closet is disposed of locally in leaching pit, a septic tank with a soil dispersion system is constructed.
This dispersion requires an optimum travel through the pores of the soil, which renders the harmful liquid bacterially innocuous by the slow process of filtrations through the soil traversed.
Where the soil is impermeable, collecting wells are constructed and the sanitary water flush latrines are connected with them.
Service Latrine:
The dry type of latrines is of service type latrines from where human excreta are removed by scavengers from house to house.
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