Cover Image
close this book Water purification, distribution and sewage disposal for Peace Corps volunteers
close this folder Section 7: Scope of disposal system projects in host communities
View the document Overview:
View the document Public health importance of excreta disposal
View the document How disease is carried from excreta
View the document The characteristics of an adequate system
View the document Possible sanitary measures in rural areas
View the document Soil and ground-water pollution
View the document Location of latrines and other excreta disposal facilities
View the document Sludge accumulation and the life of a pit privy
View the document Community participation
View the document Family participation
View the document Role of health department and other agencies
View the document Public versus private latrines
View the document Human factors
View the document Lesson plans

The characteristics of an adequate system

The health objective of sanitary excrete disposal is to isolate faeces so that the infections agents in them cannot possibly get to a new host. Fig. 2B shows the place where a sanitation officer might choose to erect a barrier to break the chain of disease transmission from excrete.

Any adequate disposal system must satisfy the following four conditions:

1. The surface soil should not be contaminated.

2. There should be no contamination of ground water that may enter springs or wells.

3. There should be no contamination of surface water.

4. Excreta should not be accessible to flies or animals.

In addition it is highly desirable that

1. there should be no handling of fresh excrete; or, when this is indispensible, it should be kept to a strict minimum.

2. there should be freedom from odors or unsightly conditions.

3. the method used should be simple and inexpensive in construction and operation.