k. Anaerobic Digestion System
1. Sludge Dewatering
m. Wet Weather Treatment Facility (influent screening, pumping, and Actiflo
process)
n. Instrumentation and Control, SCADA System
o. Odor Control Systems
2. Prepare a comprehensive process flow diagram for the main WWTF and the
WWFETF showing all major return flows.
3. Building Systems and Site Evaluation
a. Evaluate WWTF buildings and structures for current condition
(completed under Task F), compliance with applicable codes and
necessary improvements including structural integrity, heating and
ventilation systems, roofing systems, architectural items.
b. Evaluate all existing power distribution and electrical systems, including
transformer(s), MCC's and standby power generation for current condition
(completed under Task F), compliance with applicable codes and identify
necessary improvements for present and future load needs.
c. Review current FEMA flood maps for floodplain and required finished
floor elevations. Assess site conditions (completed under Task F) for
present and recommended future scenarios.
G. Sludge Handling and Disposal/Beneficial Reuse
1. Evaluate existing solids handling and anaerobic digestion operation and assess
impacts of upcoming phosphorus removal and future flows and loads and unit
process changes on the operation.
H. Evaluate alternatives for handling peak wet weather flows through the secondary
treatment process of the main WWTF
1. Evaluate improvements that could be implemented to improve the WWTF’s
capability to handle short-term wet weather peak flows and to recover from these
flows. The improvements to be evaluated are:
12/10/19 7 Wright-Pierce
