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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

Lesson plans

SCOPE OF DISPOSAL SYSTEMS IN MOST COMMUNITIES

LESSON NO. 1

LESSON OBJECTIVE: Define the characteristics of an adequate sewage disposal that meets the basic requirements of 8 village or rural environment.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/RELATED READING

Disease Transmission

Illustrate

1) the environmental conditions

2) the agents and the avenges necessary for the transmission of disease from excrete.

Charts of Figure 7.1

The Adequate System

Outline the characteristics of an adequate system.

 

Methods of Rural Sanitation

List the methods available to block the avenues of disease transmission.

 
 

List which of the above is the most economically practical.

 
 

Discuss the character of

1) the pit privy

2) the water seal latrine

3) the cesspool

4) the seepage pit

5) the septic tank.

Rural Sanitation in the Tropics (inclusive)

 

Organize students to estimate the relative cost of these systems from the list of components.

 

SCOPE OF DISPOSAL SYSTEMS

IN HOST COMMUNITIES

LESSON NO. 2

LESSON OBJECTIVE: Discuss the factors that must be considered in locating sanitary facilities and the determination of the type of facility to be implemented.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/RELATED READING

The Movement of Pollution

Discuss the movement (vertical and horizontal of faecal borne diseases and chemical pollution.

Diagrams illustrating the underground movement of pollution.

 

Recall the distances sanitary systems must be from water supply sources when located in homogeneous soils, fissured limestone formations and sandy soils.

 

Privy Location

Outline the parameters that must be considered in the location of excrete disposal facilities

The Sanitary Code

Article XI, p. 10-11

Digestion of Excreta

List the most probable weight (wet and dry) of excrete produced per day per person

 
 

Recall the factors that influence this figure

 
 

Outline the factors that affect the extent of digestion in a pit privy.

 
 

List the most probable rate of sludge build- p in wet and dry privies.

A Chart of Figure 8.

 

Discuss the factors that influence this figure

 
 

Recall the service life for privies of various volumes.

 

System Requirements

Assemble students for an individual performance test in which they determine

1) the number of facilities required

2) the various volumes of these facilities (pit privies) for a community whose population and population distribution is given

 

General Factors in Privy Selection

Outline the general factors that must be considered in determining the type of facilities to be implemented.

 

 

SCOPE OF DISPOSAL SYSTEMS

IN HOST COMMUNITIES

LESSON NO. 3

LESSON OBJECTIVE: Discuss the sociological factors that must be considered in planning a rural or village disposal system.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

Social Factors in Privy Selection

Outline the social factors that contribute to the success of an excrete disposal program.

WHO Monograph Series #39

p. 17-38

Privy Exteriors

Demonstrate how to alter privy exteriors to be compatible with the attitudes and practices of hygiene.