The objective of this study was to analyze the capacity limit for disposal of
sanitary sewer interceptor pipe seated in the urban area of the municipality of
Belém - PA . For this, we considered the Basin Depletion 5 (BE 5), population
and production wastewater (2010-2030) the official area with sewage collection
and transportation of BE 5 (Area 1) and the total area of this bowl projections
(area 2), the 100 (one hundred) of the interceptor seated in BE 5 (arrival of
Sewage Pumping Station Una), and the information identified this pipe and
slope changes proposed in this paper. Hydraulic sizing was performed and it
was found that the first area for all selected slope, the interceptor will be able to
flow over the period from 2010 to 2030, reaching a maximum water depth of
0,225 in 2030. However, for Area 2 it was found that the flow capacity will
compromise when used three of the seven estimated slopes, the maximum
water depth reaching 0,950 in 2030, going against type recommended by the
NBR 9649/1986 Draft Catch Network Sanitary Sewer (0.750). It is
recommended, in this case, the restructuring/expansion of sewage collection
and transportation of BE 5, due to population increase and production of
sewage resulting from the new division Basin Depletion held at PDSES (2010 )
system.
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