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Seismic Analysis of Failure and Loss of Function of Water Pumping Facilities
Water company managers evaluating potential seismic damage effects on a pumping facility will require a reasonable estimate of the probable magnitude earthquake that has potential to disrupt...

Design, Construction, and Maintenance of Relief Wells
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers, No. 3 This engineering manual provides guidance and information...

Modeling Municipal Water Demands for a Pump Station Area
The Chasewood Pump Station/Residential Area in southwest Houston was selected for a detailed analysis of ground and surface storage water pumping by a University of Houston and City of...

Optimal Groundwater Reclamation with Captial Costs
A dynamic optimal control model for groundwater remediation was extended to incorporate treatment facility capital costs. Incorporation of the capital costs had the greatest impact on...

Aquifer Remediation Design: Nonlinear Programming and Genetic Algorithms
Nonlinear programming and genetic algorithm solutions of a pump-and-treat aquifer remediation design model are presented and discussed. These models find the minimum cost design of the...

Evaluation of the Water Supply Potential of the Floridian Aquifer in Seminole County, Florida
In Seminole County, Florida, a occurred in the 1980s and early 1990s due to a large influx of residents. This large increase in demand, when coupled with a limited groundwater supply,...

Utilizing Mathcad for Hydraulic Design of Stormwater Pump Stations
This paper describes how the software Mathcad was used for hydraulic design of three pump stations (i.e. select pumps and size forcemains). The pump stations are part of a complete stormwater...

SCADA System Controls Combined Sewer Overflow Regulation System to Optimize Wastewater Collection
The Metropolitan St. Louis Sewer District's Overflow Regulation System (ORS) project uses computer control of a wastewater collection system for the purpose of combined sewage overflow...

Optimizing Secondary Clarifier Performance: A Presentation Outline
Optimizing secondary clarifier performance is an activity that involves a consideration of the design, the maintenance, and the operation of the clarifier. Although the basic shape of...

Assessing the Reliability of Low Pressure Membrane Systems for Microbial Removal
Low pressure membrane systems are used for microorganisms control in water treatment processes. In this article, the efficiency and reliability of this process is evaluated. Microorganism...

Computer simulation of pulsed pumping for remediation under mass transfer limited conditions
The article presents the computer simulation of choosing the right time periods for interruption and pumping in the pulsed pumping process. It will calculate a set of criteria under mass...

Biodegradation of Phenanthrene in Sand Columns in the Presence of Nonionic Surfactants
The effects of three nonionic surfactants on phenanthrene (C₁₄H₁₀) removal and mineralization by aerobic bacteria...

Eliminating Water Column Separation and Limiting Backspin at a 12,000-Horsepower Pumping Plant
Milwaukee's Water Pollution Abatement Program includes a deep tunnel system which collects combined sewage and street runoff during storms for later treatment when capacity is available...

Model-Prototype Conformance of a Submerged Vortex in the Intake of a Vertical Turbine Pump
Submerged vortices are commonly found in sump intakes of vertical turbine pumps. These vortices are known to cause increased vibration and at times degrade pump performance. Approach flow...

Scada System Requirements for Optimum Pumping
In order to minimize the cost of electric energy for pumping water through its distribution system, a computer program was developed to schedule the operation at eight pumping stations...

Fate/Transport Modeling and Remediation of Contaminated Plume at Vance Airforce Base
Air Training Command (ATC) at Vance Air Force Base (VAFB) is responsible for implementing the Installation Restoration Program (IRP) according to the Comprehensive Environmental Response,...

Genetic Algorithms in Groundwater Management
The aim of this paper is to examine applicability of genetic algorithms in groundwater planning and management. A brief description of genetic algorithms and the associated advantages...

Chicago's Waterfalls
The 1994 Outstanding Civil Engineering Achievement Award goes to successful implementation of an elegantly simple idea: aerate sluggish water by letting it fall through man-made waterfalls....

Roiled Waters: Water Politics in the 1990s
In the spring of 1994, San Diego got a reprieve from meeting the Clean Water Act's secondary-treatment requirements. For six years city officials had battled the Environmental...

Upgrading Dubai's Sewers
The sewerage system serving the city of Dubai in the United Arab Emirates, is plagued with odor and corrosion problems. System elements were deteriorating and failure rates were increasing....

 

 

 

 

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