oa Civil Engineering = Siviele Ingenieurswese - Design of small grit channels
|Article Title||Design of small grit channels|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Affiliations||1 Water Resources and Public Health Engineering, University of Cape Town|
|Publication Date||Aug 1971|
|Pages||265 - 271|
|Keyword(s)||Flow weir, Grit storage, Hydraulic jump, Inorganic grit load, Oxidation ponds, Parshall flume, Sewer borne waste waters and Sewer invert level|
In Africa designers of grit channels to treat the waste flows from small communities must take cognizance of high grit loads and a lack of killed operating personnel. With parabolic channels it is sometimes difficult to ensure adequate grit storage space without disrupting the parabolic cross-section. Proportional flow weirs tend to clog. In this paper the theory and design of grit channels with rectangular cross- section providing any desired storage space and with flow control by means of the Parshall flume are discussed. Installations in Zambia indicate satisfactory operation with unskilled operators.
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