are at their most intense, so it is crucial that the tanks be
securely covered. The retractable covers are tensioned
across a low-profile aluminum arched frame spanning the
tank opening but can easily be rolled open.
The retractable covers have helped minimize odors as
intended. Odor from wastewater treatment is reliably contained within the tanks so that it can be removed and treated, helping reduce complaints and maintain a positive perception of the plant in the community. Those who work at
the plant can still perform their regular duties and access the
tanks’ internals by simply retracting the covers. As an added benefit, the removable guardrail system provides safety
without monopolizing space on the walkways.
MODULAR TANK COVERS COST-EFFECTIVELY MINIMIZE
The Town Branch Wastewater Treatment Plant treats almost 11 billion gallons of wastewater annually. The plant
was converting four existing tanks, including a blending
tank, two secondary digesters, and a side-stream holding
tank. To minimize odors, the plant needed to replace failing steel-dome gas collecting covers, and intended to recover the tanks with a more economical product.
The four tanks at the Town Branch Wastewater Treatment Plant were covered with insulated modular covers
from GTI. The durable design allows individual panels, also
Circle No. 12 on Reader Service Card
Covering tanks is often the best solution for reliable odor control.