Project Profile BDP Industries,
Inc. Greenwich, NY
Village of Victor, NY
Belt Filter Press Dewatering
Project
Facility Contacts
Chief
Operator: Jim Abraham
(716)924-2004
Engineer: Chatfield Engineers - Mr.
John Schepp (716)227-6040
Project Summary:
The Village’s existing drying beds, while functional, did not have enough capacity. As a result, solids inventory in the wastewater treatment process increased, which compromised effluent quality. The Village needed some way to remove and dewater sludge from their system more efficiently.
Chatfield Engineers, the Village Engineer, evaluated several
alternatives: Expansion of the existing drying beds, centrifuge technology and
belt filter presses. The belt filter
press was determined to be the most economical option and provided the greatest
operational flexibility. The evaluation demonstrated that the belt filter press
had a lower capital cost, used less polymer, and required less operation and
maintenance than the centrifuge option.
The Village desired state-of-the-art technology and selected
the 3DP belt filter press, as manufactured by BDP Industries. The 3DP consists of an independent gravity
dewatering section combined with a vertical pressure section. The horizontal gravity belt can operate up
to five times faster than the pressure section - this greatly increases
throughput. The vertical pressure
section configuration maximizes cake dryness and minimizes polymer usage.
An air sparger system was installed on the gravity
dewatering section. This utilizes
multiple air lances located underneath the gravity belt. The air lances remove sludge and polymer
from the belt fabric, further increasing dewatering and reducing polymer
consumption.
Basis of Design
and Equipment Components