The Effects of Hazardous Organic Pollutants on the Performance of Activated Sludge Systems
The effects of phthalate esters (diethyl phthalate and dimethyl phthalate) and phenols (2,4-dinitrophenol, 2,4-dimethylphenol and 4-nitrophenol) on the performance of a laboratory-scale...
Vacuum Anaerobic Treatment: A New Approach
Anaerobic processes have an organic loading limit that when exceeded leads to process failure. The research summarized in this paper demonstrates that both organic removal rate enhancement...
The Greening of Corporate America
Since the decade of the 80's has seen both the most stringent environment regulations as well as the most destructive environmental incidents in our history, most American...
Degradation of Ortochlorophenol in Aerobic and Anoxic-Aerobic Processes
Removal of OCP in sequencing batch reactors was shown to be independent of the presence or lack of co-substrate and independent of SRT for fully aerated reactors. The reactors with an...
Probabilistic Analysis of Modernization Options
Benefit-cost analysis is a standard procedure for reaching planning decisions. Cost overruns and benefit shortfalls are also common occurrences. One reason for the difficulty of predicting...
Renovation and Uprating of Seven Hydropower Plants in Java
The Indonesian Power Authority is planning to renovate and uprate seven hydropower stations in Java to expand plant life expectancy, ensure operating safety and reliability, and increase...
Evaluating the Dynamic Operating Benefits of Hydro Power Plants
In 1986, the Electric Power Research Institute asked Decision Focus to develop a new planning model to quantify the dynamic operating benefits of power technologies that offer operating...
Technology Transfer for Small Hydro
The wide range of different definitions of what constitutes a small hydroelectric power plants is discussed and the conclusion is drawn that this definition should be based more on the...
Challenges in the Design and Manufacture of Small Replacement Runners
The increasing trend within the hydro industry to achieve additional capacity and/or energy through runner replacement has brought with it new challenges for the turbine manufacturer....
Rehabilitation of the Historic Ocoee 1 Hydro Power Plant
The Ocoee 1 Hydro Plant is located on the Ocoee River 16 miles east of Cleveland, Tennessee. Built by the East Tennessee Power Company, it was placed in commercial operation in 1912. There...
On-Site Rehabilitation Capabilities for the Nineties
This paper will review recent technological advancements in on-site manufacturing and machining capabilities which have been developed for the proper installation of new hydro turbines....
Investigations on 3-D Flow Structures in Combined Systems of Groynes and Harbour Basins
The structure of the flow field in harbour basins shows significant three-dimensional (3-D) effects, e.g. variation of the direction of the horizontal velocity components with depth, existence...
McClure Park: A Multi-Purpose Off-Stream Storage Facility for Tulsa, Oklahoma
The City of Tulsa is in the process of implementing a flood control plan for the 61 square-mile (158 km2) Mingo Creek watershed. The federally-assisted...
Maintenance of Stormwater Management Facilities: Neglects in Practice
The Stormwater Management Facilities (SWMF) have become a required component of urban development projects in many parts of the country. In spite of differences in size, type, and physical...
Legal Principles and Theories
Legal issues are intertwined with all aspects of the technical considerations relating to temporary structures. This paper presents an introduction to the legal theories which relate to...
Liability Insurance Coverages for Designers of Temporary Structures
A recent survey completed by the American Consulting Engineers Counsel (ACEC) indicates that in 1990 approximately 40 claims occurred per 100 firms. There also is an indication that claims...
Fall Protection & Debris Containment During Construction
The purpose of this paper is to review the current practices in the United States for both fall protection and debris protection during high rise construction. A performance comparison...
Who Pays for the Unexpected in Construction: The Geotechnical Contractor's Point of View
Unexpected conditions are inherent in most construction projects and often lead to claims and legal action. Contract risk avoidance language force owners, engineers and contractors to...
Who Pays for the Unexpected in Construction?An Architect's Viewpoint
As an Architect, who in the first instance is contractually obligated to address the full range of design discipline services, the question of 'who pays for the unexpected...
Construction Product Performance, The Unexpected
Efforts made in the construction, industry to increase the quality of the constructed facility through the development of new materials and systems and through the reduction of labor intensive...
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