Dissertation/Thesis Abstract

Analysis and simulation of energy use and cost at a municipal wastewater treatment plant
by Feng, Yilu, M.S., University of Maryland, College Park, 2011, 278; 1501264
Abstract (Summary)

The cost of electricity, a major operating cost of municipal wastewater treatment plants, is related to influent flow rate, power price, and power load. With knowledge of inflow and price patterns, plant operators can manage processes to reduce electricity costs. Records of influent flow, power price, and load are evaluated for Blue Plains Advanced Wastewater Treatment Plant. Diurnal and seasonal trends are analyzed. Power usage is broken down among treatment processes.

A simulation model of influent pumping, a large power user, is developed. It predicts pump discharge and power usage based on wet-well level. Individual pump characteristics are tested in the plant. The model accurately simulates plant inflow and power use for two pumping stations [R2 = 0.68, 0.93 (inflow), R2 =0.94, 0.91(power)]. Wet-well stage-storage relationship is estimated from data. Time-varying wet-well level is added to the model. A synthetic example demonstrates application in managing pumps to reduce electricity cost.

Indexing (document details)
Advisor: Brubaker, Kaye L.
Commitee: Davis, Allen P., McCuen, Richard H.
School: University of Maryland, College Park
Department: Civil Engineering
School Location: United States -- Maryland
Source: MAI 50/02M, Masters Abstracts International
Source Type: DISSERTATION
Subjects: Environmental science, Environmental engineering, Energy
Keywords:
Publication Number: 1501264
ISBN: 978-1-124-96972-5
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