Thursday, November 30, 2023

Conservancy System of Sanitation ( Dry System ) : Advantages & Disadvantages

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In the conservancy system of sanitation; different types of garbages or refuse are collected, conveyed, and disposed off separately by methods like burning, filling, burying, etc.

Refuses or garbage is collected in dustbins and is conveyed by trucks to the disposal point. Then, combustible & non-combustible portions are separated.

Combustible portions like dry leaves, waste papers, furniture, plastics, etc are burnt, and remained residue is buried.

Non-combustible materials like sand, silt, clay, etc are used for filling the low-level areas.

system of sanitation

Human excreta is collected separately in conservancy latrines or privies and is carried by human agencies.

The Conservancy system is also called the dry system of sanitation.



  a. Advantages of Conservancy System of Sanitation  

Some of the advantages of the conservancy system are:

a. Its initial cost is very low.

b. No need for water for flushing purposes.

c.  No need for sewer pipes as in the water carriage system.

d. Sewage quantity reaching the treatment plant before disposal is low.



  b. Disadvantages of Conservancy System of Sanitation  

Some of the disadvantages of the conservancy system are:

a. This system fully depends upon human agencies. So, lack of manpower or strike by agencies can cause the unhygienic condition in the city.

b. For the burying of the residue ( remained part after burning of combustible portions) or excremental matter; a large area is required.

c. Labours are needed daily for the collection of waste.

d. Decomposition of excreta takes place before its removal. This causes a nuisance of smell.

e. It is not suitable for most of the buildings.

f. It is unhygienic and causes unsanitary conditions.

g. This method also increases the risk of an epidemic. ( E.g. There is a risk of new waves of viruses like coronavirus, if proper safety is not adopted by laborers.)

h.  Liquid wastes from laboratories may percolate into the ground causing the pollution of the groundwater table.


Read Also: 4R Principle


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Er. Madhu Krishna Poudel ( Founder )
Er. Madhu Krishna Poudel ( Founder )
Madhu Krishana Poudel is a distinguished Civil Engineer with extensive experience in site supervision, estimation, and AutoCAD 2D and 3D design. Holding a Bachelor's degree in Civil Engineering from Pokhara University, his work and expertise have earned recognition in reputable sources such as USA Today, Time, Wikipedia, and TheRichest, establishing his credibility and trustworthiness in the construction industry.
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