Waste Management

Download A Guide to the Development of On-Site Sanitation by R. Franceys PDF

By R. Franceys

Offers designated sensible and technical recommendation meant to lead the choice, layout, building, and upkeep of on-site amenities for the elimination of human excreta. Addressed to engineers, sanitarians, clinical officials, and undertaking planners, the booklet concentrates on technical suggestions compatible for owners development their very own latrines, even if in small groups, rural components, or disadvantaged city settlements. info variety from line drawings illustrating good points of layout and development, via an inventory of the reason why more suitable sanitation could elicit damaging responses from clients, to directions for calculating the interior dimensions of a septic tank.
The booklet positive factors 11 chapters in 3 elements. Chapters within the first half introduce the principles of sanitary perform, describe the hyperlinks among excreta and affliction, and clarify the varied social and cultural elements that has to be thought of on the making plans section. Chapters within the moment and so much huge half offer an in depth technical consultant to the layout, development, operation and upkeep of the entire major concepts for on-site sanitation. Chapters describe how the differing kinds of latrine paintings, talk about their relative advantages, and set out distinctive plans for the development of latrines and their parts. the ultimate half positive aspects 3 chapters at the making plans and improvement of on-site sanitation tasks, underscoring the necessity for an intensive research of cultural in addition to layout good points.

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Extra resources for A Guide to the Development of On-Site Sanitation

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If access to clean water is limited, laundry, bathing or any other similar water may be used. Pour-flush latrines are most appropriate for people who use water for anal cleaning, and squat to defecate, but they have also proved popular in countries where other cleaning materials are common. However, there is a likelihood of blockage where solid materials such as hard paper or corncobs are put in the pan. The placing of solid cleaning materials in a container for separate disposal is not generally recommended unless careful attention can be given to the handling of the waste and sterilizing of the container.

Details of construction of individual parts is given in Chapter 7 and design examples in Chapter 8. Pit latrines The principle of all types of pit latrine is that wastes such as excrete, anal cleaning materials, sullage and refuse are deposited in a hole in the ground. The liquids percolate into the surrounding soil and the organic material decomposes producing: - gases such as carbon dioxide and methane, which are liberated to the atmosphere or disperse into the surrounding soil; - liquids, which percolate into the surrounding soil; - a decomposed and consolidated residue.

As with the single-pit VIP latrine, the double-pit VIP latrine has the advantages of reduced smell and fly nuisance. Also the contents of the latrine dug out every two years or so are a valuable soil conditioner (see Annex 1). Double-pit VIP latrines are usually (but not always) more expensive than single-pit VIP latrines, and require a greater operational input from the user, particularly in changing over pits. Some societies have shown resistance to handling the decomposed contents of the pit but this can often be overcome with education and time.

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