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THIOGUARD®
takes the cake. . .
and makes it better.
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For a nearly one million gallon a day plant in
Lambertville, NJ the good news just kept on
coming. First, they started using THIOGUARD®
to condition their primary sludge to reduce
odors from the plant. This worked so well,
they began to ask, "Where else could it be
applied?"
As the winds whipped in early Spring, it was
discovered that a significant amount of odor
was coming from the nearly quarter million
gallon sludge holding tank at their site. Since
it worked to reduce the primary sludge
odors, they wondered if it could work for
stored sludge waiting to be pressed.
After establishing a stable pH range of
7.5-8.0 su, with just a couple gallons a
day, odors were reduced to satisfactory
levels...and then something very interesting happened. Not only were odors in the press
building reduced, but the press cake was
dryer. On average nearly 20-40% dryer.
It's true. Why? THIOGUARD®
is magnesium
hydroxide: A buffered source of alkalinity
that is used to increase pH. This elevated pH
promotes better polymer performance.
Not only that, but due to the divalent cation
bridging, the press supernatant quality can
be clearer as well. Any remaining alkalinity
is then returned in the supernatant to the
headworks of the plant.
Improved polymer and press performance
through buffered pH control adding divalent
magnesium cation bridging. THIOGUARD®
proves it is a multiple benefit application.
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Graph showing nearly 20-40% increase in 2007 solids weight
percent
using THIOGUARD®
over the same time in 2006
Lambertville, NJ - WWTP Biosolid
Special Points of Interest:
-Untapped potential in BNR
-Protects collection
system infrastructure
-Significantly reduces
Hydrogen Sulfide Odors
-Non-Toxic, All Natural
-Low maintenance and
material costs
-Single point application can
treat miles of infrastructure
-Reaches WWTP to enhance
biological processes
-Conditions sludge to
improve dewatering and
reduce sulfide odors
-Positively affects the BNR
processes in WWTPs and helps
prevent biological release
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