Page 184 - Health, Population and Environment Education 9

Disadvantages of improved pit latrine
a. The leakage of waste water from this latrine can cause land and water pollution.
b. It spreads bad smelling.

c. If the opening of the pit is not covered, it attracts insects.

Modern concrete latrine
Modern concrete latrine is the modern type of
latrine. It is generally made in the urban areas. It
contains U-tube in which some portion of water
remains after flushing. The presence of water acts
as a water seal and prevents bad smell as well as
distracts insects. This latrine can be made inside
or outside the house. But, it can’t be made in such
places where there is lack of water.
Fig: 42

Advantages of modern concrete latrine
a. It is made of bricks, cement, concrete, rods, marble, tiles and metallic substances due
to which it becomes durable for many years.
b. It can be made inside the house so that it can be used by people at night as well.
c. Water is used in this latrine which makes it clean and protects from insects.

Disadvantages of modern concrete latrine
a. It can be made only by skilled manpower.
b. The construction materials for this latrine are expensive.

c. It cannot be constructed in the places where there is lack of water.
d. If water is not properly utilized, it can spread bad smell and attracts insects.

d. Trench latrine
Trench latrine is a temporary latrine generally
made during camps and fair. In this latrine, a
long pit is made which is separated into different
segments and are separated by plastics, tin, wood,
sack or any other locally available materials. A long
pit is made so that many people can urinate or
defeacate at once. It is covered with mud once the
fair or camp is completed. But, another pit is made
in another place if pit is full before the camp or fair Fig: 43
is completed.

184 GREEN Environment Population and Health Education Book-9