CONNstruction - Winter 2015 - (Page 18)

feature 40-Year Old Treatment Plant Gets Royal Flush Upgrade By Gail Allyn Short About a decade ago, leaders of the Mattabassett District Water Pollution Control Facility in Cromwell, Connecticut, wanted to address major regional wastewater treatment issues. They needed to come up with cost-effective ways to upgrade and renovate the aging treatment plant, achieve improved nutrient removal and provide reserve capacity for their member communities. Mattabassett's wastewater treatment facility was almost 40 years old. It had equipment and motors that had been in operation continually, day and night, since its original 18 / connstruction / WINTER 2015 construction in 1968. Population studies indicated that it lacked the capacity it would need in the future to handle sewage from the member communities. Moreover, it needed to reduce nitrogen discharge levels into the Connecticut River and Long Island Sound to comply with state regulations. Nitrogen can act as a fertilizer for algae. Too much algae, however, can block sunlight from grasses and deplete waterways of oxygen. That can negatively affect both water quality and the marine environment. So after reviewing several proposals, in 2007, the District hired Wright-Pierce, a New England-based engineering firm, to design plans for renovating and upgrading the wastewater treatment facility and lowering its nitrogen discharge. "These treatment facilities have to be reliable and efficient," says John Braccio, P.E., president of Wright-Pierce, a Middletown, Connecticut-based firm that specializes in designing environmental solutions. "Wastewater treatment facilities work round the clock for decades and ultimately, they have to have sufficient capacity to meet the economic development goals of their member communities."

Table of Contents for the Digital Edition of CONNstruction - Winter 2015

The Big Dam Challenge
MDC’s Office of Diversity: Promoting
Call Before You Dig – System Enhancement!
Cleaning Water, Creating Jobs
Connecticut’s New Port Authority Key to Economic Growth
40-Year Old Treatment Plant Gets Royal Flush Upgrade
What You Need to Know About WOTUS
AGC of Connecticut Industry Recognition Awards
Connecticut Environmental & Utilities Contractors Association Annual Fall Meeting
Diggers Mixers Fixers – 2015 Golf Outing!
CCPC – 2015 Summer Outing!
2015 Young Contractors Forum bus trip to the new Yankee Stadium
2015 YCF Fall Membership Meeting
Index to Advertisers/Advertiser.com Published

CONNstruction - Winter 2015

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