Cover Image
close this book Water purification, distribution and sewage disposal for Peace Corps volunteers
View the document Contents
View the document Preface
close this folder Section 1: Water supply sources
View the document Overview:
View the document Background information
View the document Evaluation of sources
View the document Factors influencing the quality of water
View the document The quantity of water
View the document Types of sources
View the document Development of water sources
View the document The basic requirements of a water supply
View the document Selection of the source of supply
View the document Lesson plans
close this folder Section 2: Water treatment
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View the document Self purification
View the document Basic steps in treating water
View the document Sample designs for treatment systems
View the document Lesson plans
close this folder Section 3: Planning the distribution system
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View the document Design
View the document Existing facilities
View the document Size and nature of the community
View the document System capacity
View the document Water source
View the document Proposed system
View the document Financing the project
View the document Lesson plans
close this folder Section 4: Characteristics of an adequate system
View the document Overview:
View the document Essential components of an adequate system
View the document General requirements for an adequate system
View the document Relationship of distribution system to community
View the document Headloss and distribution systems
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close this folder Section 5: Construction techniques
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View the document Scheme
View the document Concrete
View the document Construction at the source
View the document Construction at the pumping station
View the document Construction at storage facility
View the document Construction on supply line
View the document Lesson plans
close this folder Section 6: Operation and maintenance
View the document Overview:
View the document Water source maintenance and inspection
View the document Regulations for installing new service connections or extensions to existing system.
View the document Regulations for cleaning the distributions system
View the document Inventorying for operation in emergencies
View the document Types of financial statements for small waterworks
View the document Lesson plans
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
close this folder Section 8: The privy method of excreta disposal design for a village
View the document Overview:
View the document The sanitary survey
View the document The pit privy
View the document Example privy designs
View the document Latrine for village use
View the document Thailand water-seal privy
View the document Lesson plans
close this folder Section 9: Water carried sewage systems construction and maintenance
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View the document The septic tank
View the document Operation and maintenance
View the document Lesson plans
View the document Appendix A
View the document Appendix B
View the document Bibliography

Lesson plans

WATER-CARRIED SEWAGE SYSTEMS

CONSTRUCTION AND MAINTENANCE

LESSON NO. 1

LESSON OBJECTIVE: Outline the factors that must be considered in designing a water-carried sewage systems.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

System Location

Outline the factors that must be considered ; in the location of water-carried sewage systems.

 

The Percolation Test

Demonstrate digging a test hole with a hand held auger.

 
 

Supervise students in digging test holes for a percolation test.

 
 

Conduct a percolation test.

 

Selection of Disposal System

Review the factors that must be considered in determining the typo of facility to be implemented.

 

WATER-CARRIED SEWAGE SYSTEMS

CONSTRUCTION AND MAINTENANCE

LESSON NO. 2

LESSON OBJECTIVE: Set up and carry out a program to construct a water-carried sewage system.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

The Components of Water-Carried

Disposal Systems

Discuss the functions of the fundamental components of the seepage pit, cesspool and septic tank

Diagrams of these systems

WHO Monograph Series #39

Chapter 3.

 

Illustrate the and components for these systems

Manual of Septic Tank Practice, p. 9-38.

 

Outline the be of construction for these system

Constructing a Concrete (Technical Digest Survey)

System Selection

Assemble students to select the most feasible locations of these systems in a rural or village community.

 

Construction Techniques

Outline construction methods for septic tanks.

 
 

Set up a program (allocate construction tasks to the students) for the construction of a septic tank.

 
 

Supervise students in the construction of this septic tank.

 
     

 

WATER-CARRIED SEWAGE SYSTEMS

CONSTRUCTION AND MAINTENANCE

LESSON NO 3

LESSON OBJECTIVE: Define the need for and the methods of establishing a maintenance program for this system.

TOPIC

INSTRUCTIONAL PROCEDURE

SUPPLEMENTAL MATERIALS/ RELATED READING

Rules for Efficient Operation and Maintenance of Septic Tank Systems

Discuss the need for septic tank inspection.

 
 

Recall how often inspection should be carried out and what it should establish.

 
 

Discuss how to maintain a septic tank.

 
 

Visit a site where a septic tank is being desludged.

 

The Need for Simplifying Technical Materials

Discuss the difficulty of finding skilled labor in developing countries.

WHO Monograph Series #4

Chapter 9

 

Outline how to simplify instructional materials.