The slug method of pipeline disinfection requires that a section of new main is highly
chlorinated, then valves are operated and water is slowly removed from the end
of the main causing the “slug” of highly chlorinated water to move along the
newly installed pipeline.
As this slug passes tees, crosses, and hydrants, the adjacent valves are
operated to ensure the disinfection of all appurtenances and branches.
Example Calculation
Using
the slug method chlorinate a 800 ft length of 6 in diameter pipeline. There are 4 fire hydrants and two valves
located on the new section of pipeline.
The chlorination must be completed in less than 8 hours. A 1% sodium hypochlorite solution is used for
this procedure. How much is needed and
describe the process.
I'll give you a couple of days before I reveal the answer.
Bill
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Please send your question or comment. I will try to respond within a few days. Bill