Table 4.8.1. Prototype Aerating Weirs
timbers, concrete piers
DO, min. flow
timber crib, concrete piers
DO, min. flow
steel frame, concrete wall
DO, degas methane
Guadalupe-Blanco River Authority
Tennessee Valley Authority
Electricite de France (weir in French Guiana)
Weirs are reliable, effective, low maintenance aerators that can meet both aeration and
minimum flow environmental objectives. Weirs represent a significant capital cost, but weirs can often
be the more cost effective option when flows and capacity factors are high, or when being considered
for both aeration and minimum flow objectives.
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