June | 2017 27 www.waterworld.com
known as modules, to be removed and replaced for routine maintenance. Each
panel has additional support along the edges, meaning the covers are safe to
walk on in any location — even when panels are removed.
The custom-fabricated tank covers function very well, and plant operators and
management are pleased with the results. Odors are effectively controlled at the
facility, thus maintaining community relations and worker satisfaction.
COVERS HELP CONTROL ODORS AND RISING ENERGY COSTS
The Milton Regional Sewer Authority (MRSA) in Pennsylvania serves both
residential and industrial customers. Like most plants, naturally-occurring foul
odors from wastewater treatment were a concern. Moreover, the MRSA was
spending over $360,000 a year on electricity, and that price was expected to
rise by 20-40 percent when Pennsylvania deregulated the energy industry. The
municipality needed a solution that would help control odors and combat rising
By investing in a plant upgrade dubbed the “Wastewater to Energy (Ww2E)”
project, the MRSA was able to simultaneously address both issues. GTI custom-designed and installed gas collection covers on two large digester tanks, which
reliably capture the biogas produced from anaerobic digestion.
The tank covers control the “rotten egg” smell of biogas, while helping the
MRSA consume less energy and save more money. The upgrade has reduced
Odor control covers can also collect biogas and reduce greenhouse gas emissions. Circle No. 13 on Reader Service Card
-------- See COVERS con’t on page 44