Pollution of Storm Water and its Treatment
The storm water runoff from the urban areas during the first rains will come into contact with the pollution in the storm water drains, parking lots, etc. which have accumulated till that time.
Treatment methods for urban storm runoff
Refer section 9.5.2 of CPHEEO manual for more detail.
Sand Filters
Sand filters provide storm water treatment for first flush runoff. The runoff is filtered through a sand bed before being returned to a stream or channel.
Pollution of Storm Water and its Treatment
The storm water runoff from the urban areas during the first rains will come into contact with the pollution in the storm water drains, parking lots, etc. which have accumulated till that time.
Treatment methods for urban storm runoff
Refer section 9.5.2 of CPHEEO manual for more detail.
Sand Filters
Sand filters provide storm water treatment for first flush runoff. The runoff is filtered through a sand bed before being returned to a stream or channel.
Water Quality Inlets
Water Quality Inlets
Water quality inlets are pre-cast storm drain inlets that remove sediment, oil and grease, and large particulates from parking lot runoff before it reaches storm drainage systems or infiltration BMPs(Best Management Practices). They are commonly known as oil and grit separators.
It consists of three chambers as shown in Figure
1.a sediment trapping chamber,
2.an oil separation chamber,
3.the final chamber attached to the outlet.
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Urban Infrastructure and Network Study notes for M. plan Sem-III
Urban Infrastructures & Network.pdf
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