Waste Water Engineering
Stone ware pipes are

Highly impervious
Especially suited to pressure pipes
Highly resistant to sulphide corrosion
Hydraulically efficient because of their smooth interior surface

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Waste Water Engineering
In the activated sludge process

Water is removed by centrifugal action
Sludge is activated by constant stirring
Aeration is done with an admixture of previously aerated sludge
Aeration is continued till stability

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Waste Water Engineering
The stone ware sewers

Are used for carrying sewage and drainage from houses
All listed here
Are manufactured from clays and shale
After casting are dried and burnt at temperature 150°C, 700°C and 1200°C

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Waste Water Engineering
The clarigesters are

Circular septic tanks
Rectangular septic tanks
Circular Imhoff double tanks with bottom hoppers
Circular Imhoff double storey tanks without bottom hoppers

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