Designing Self-Cleaning Wet Wells for Wastewater Pumping
Guidelines for the design of self-cleaning wet wells for variable speed pumps are given. The progress of research on the design of wet wells for constant speed pumps, including submersible...

Variability in Solutions of Constrained Optimization Problems: Ocean Outfall Design Case
Uncertainty in optimization model resulting from parameter uncertainty has not been well studied in the hydraulics and water resources areas. To make valid decisions, knowledge of the...

Cleaning Up in the Former Soviet Union
As they negotiate with authorities in Russia, Azerbaijan, Kazakhstan and other former Soviet Republics, Western companies—including many of the big oil and natural-resources firms—are...

Radionuclide Migration to the Aquifer Through the Porous Medium
Time dependent doses of radionuclides from a waste container to the aquifer through porous medium are analyzed for (1) congruently released transuranic elements such as Np-237 and (2)...

Project Management: Keys to Success
Successful construction projects can be traced to several key factors observed by the owner, the AE and the contractor. They include: 1) Goals and commitment of the managing partners agreed...

Steady State Composition with Low Fe²+ Concentrations for Efficient O2 Production by Magma Electrolysis of Lunar Soils
Parameters are estimated for a hypothetical, well stirred, continuous-feed electrolytic cell that converts 20% of a lunar soil feedstock to O2 gas,...

Grouting Against Hazwaste
Grouting has only recently entered the hazardous-waste arena, mainly in the form of positive cutoff slurry walls. At an industrial landfill near Niagara Falls, N.Y., a three sided, single-line...

TLP Fatigue Due to Second-Order Springing
For offhsore oil production in water depths beyond 300-350 m, the tension leg platform (TLP) has become an increasingly popular design concept. The TLP is a floating structure with excess...

Tapping Shallow Groundwater with Horizontal Wells
In recent years, horizontal wells have become an economical water supply source alternative for many shallow water table areas in Florida. Horizontal wells typically utilize 15 to 20 cm...

Case Study: Design of Groundwater Quality Monitoring Systems
This paper demonstrates the fundamental aspects of the design an implementation of state-of-the-art groundwater monitoring system, using conventional design principles. Based on experiences...

Use of D-C Resistivity to Map Saline Ground Water
It has been estimated in previous studies that 23 square miles of the Oxnard aquifer, a member of a multi-layered aquifer system beneath the Oxnard plain in Ventura County, California,...

³H and ¹4C as Tracers of Ground-Water Recharge
Surface spreading of water from the Santa Clara River is used to recharge aquifers underlying the Oxnard Plain. These aquifers are divided into an upper system about 400 feet thick, and...

Progress Report ARS/SCS Runoff Curve Number Work Group
The Soil Conservation Service (SCS) Runoff Curve Number (RCN) procedure works well as a single event model to estimate design storm runoff volumes from a small agricultural watershed....

Applications of Remote Sensing to Drainage
This paper summarizes examples of current applications of remote sensing information to drainage. Topics covered include drainage basin parameters, drainage problem identification, salinity...

Study of Groundwater Availability in Case of Drought
Groundwater drought events were derived by taking truncation levels through the time series of daily drawdown records from observation wells. Droughts of various truncation levels, namely,...

Managing Water Supply with Aquifer Storage and Recovery
The City of Chesapeake, located in the Hampton Roads area of Virginia, is experiencing a rapid growth in population which translates into an increased demand for water, particularly during...

Decision Analysis Model for Well Rehabilitation and Groundwater Development, Moses Lake, Washington
A decision analysis model has been developed for evaluating various well rehabilitation strategies and long-term groundwater development alternatives, as well as various investigation...

Measured and Simulated Response of a Small Semisubmersible Moored in Deep Water
Small semisubmersible platform concepts are proposed for electronic tracking ranges, single-well petroleum production, and oceanographic data collection. This paper summarizes a major...

Design of Tension Leg Platforms: A Knowledge Based Approach
Tension leg platforms (TLPs) are floating compliant platforms designed for deep water offshore hydrocarbon production. Only a few TLPs have actually been built, but others are currently...

Feasibility Study of Petroleum Development in the Ross Sea, Antarctica
This paper discusses the viability of Antarctic petroleum development and estimates when Antarctic oil production could become economically feasible. The analysis is based on a hypothetical...

 

 

 

 

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