To:
From:
E. Motion:
Discussion:
City of Nashua, Public Works Division
Board of Public Works Meeting Date: June 23, 2016
David A. Simmons, Superintendent
Wastewater Department
Polymer
To approve the contracts with Polydyne of Riceboro, GA in the amount of $250,000 and
BASF Corporation of Florham Park, NJ in the amount of $70,000.. Funding will be
through: Department: 169 Wastewater; Fund: Wastewater; Account Classification: 61
Supplies & Materials.
Two kinds of Polymer are used at the plant to coagulate sludge.
In FY15, with the introduction of the new Huber Presses, a new polymer was required.
We conducted bench testing and selected a polymer from Polydyne and we have been
using that product since May.
The unit price is $1.03/lb, and Polydyne has agreed to keep this pricing through FY17
(June 30, 2017).
The yearly estimated cost for this polymer is $250,000.
The other kinds of Polymer are known as ZETAG 7878 FS40, LIQ and is used with the
thickeners and the ZETAG 4119 DRY is for the Wet Weather Facility for use during rain
events. Polymer is used to coagulate sludge. BASF is the sole source for the polymer that
the facility needs. There are other manufacturers but they cannot meet the molecular
weight and electrical charge that is optimum for the facility’s sludge processing needs.
ZETAG 7878 F540, LIQ @ $1.92/lb
ZETAG 4110 DRY for WW @ $2.53/Ib
The yearly estimated cost for this polymer is $70,000,
