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From the original wooden pipes from the 1800's to modern day systems, sewer systems have been a public health concern in urban and rural areas.

TitleInnovative and low cost technologies utilized in sewerage
Publication TypeMiscellaneous
Year of Publication1992
AuthorsAzevedo Netto, J.M. de, Reid, R.
Secondary TitleTechnical series / PAHO Environmental Health Program
Volumeno. 29
Pagination94 p.: 22 fig., 10 tab.
Date Published1992-01-01
PublisherPan American Health Organization, Environmental Health Program
Place PublishedWashington, DC, USA
Keywordsappropriate technology, condominial sewerage, construction costs, design, design criteria, hydraulics, settled sewerage, sewerage, simplified sewerage
Abstract

From the original wooden pipes from the 1800's to modern day systems, sewer systems have been a public health concern in urban and rural areas. There are three major types of sewer systems: combined sewer and rainwater, partially seperated and separated systems. Combined systems are large and costly to construct, and during dry weather they are liable to silt; therefore separate systems are usually advised if possible. The water velocity has to be kept high enough for a self-cleansing action. Manholes can be dangerous and expensive, and there are new technologies to eliminate most of them. The report gives technical and design specifications on the new modifications available in sewer systems, including hydraulic characteristics, construction costs, operation and maintenance, and services and infrastructure support.

Notes23 ref.
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