Significance of In-Stream Denitrification
In-stream denitrification rates were calculated using a simultaneous nitrogen and dissolved oxygen mass balancing technique. Anaerobic, laboratory, incubation of stream bottom samples...

In-Plant Testing for Evaluating Aeration Systems
In the fall of 1984, ASCE published a standard, Measurements of Oxygen Transfer in Clean Water. The standard, if used by the industry, should simplify evaluation of alternative aeration...

Oxygen Transfer Studies in Activated Sludge
A bench-scale research project was undertaken to evaluate the two-film model for predicting oxygen transfer rates in sparged suspended growth systems and to determine if interfacial oxygen...

Treatment of the Wastewater From the Alkaline Cooking of Maize in an RBC System
The liquid waste resulting from cooking and washing of maize is called nejayote or nexayote. The soluble COD concentration of this waste ranges from 10,000 to 20,000 mg/l. In an effort...

Factors Influencing Oxygen Depletion in Green Bay
Dissolved oxygen depletion in the lower Fox River (Wisconsin) and Green Bay (Lake Michigan) have historically been tied to discharges of organic matter from municipal waste treatment plants...

Coral Reef Modeling: Key Largo Case Study
A numerical model called CORALSIM has been developed for the Key Largo Coral Reef National Marine Sanctuary in the Florida Keys. The model was developed as a management tool to study the...

Turbine Efficiency Loss Associated with Draft Tube Aeration
Draft tube aeration is one method for improving the dissolved oxygen content of hydroelectric discharge. A simple analytical procedure is presented for estimating the loss in turbine efficiency...

Application of Zero Order Kinetics to Modeling Simultaneous Benthic Nitrification and Denitrification

Sediment Oxygen Demand in Green Bay (Lake Michigan)

Fish Growth and Lethality Versus Dissolved Oxygen

Reservoir System Management for Water Quality
A reservoir system analysis computer model has been recently developed with the capability to simulate up to 10 reservoirs, 30 control points and 8 water quality parameters. With this...

Hannibal Hydroelectric Project Ecological Concerns
In January, 1983 the City of New Martinsville, West Virginia filed a license application with the Federal Energy Regulatory Commission (FERC) to construct and operate a 34 MW hydroelectric...

The COD as a Fracture Criterion for Concrete

A Standard for the Measurement of Oxygen Transfer in Clean Water
This standard was developed to measure the rate of oxygen transfer from diffused gas and mechanical oxygenation devices to water. The standard is applicable to laboratory scale oxygenation...

Activated Sludge
A Comparison of Oxygen and Air Systems
The use of pure oxygen in biological wastewater treatment is the only major advance which has occurred in the area of activated sludge treatment since the early 1960's. Furthermore,...

Oxygen Modeling in Tailwaters of Hydro Projects

Lox Dissolved Oxygen Mitigation System for Hydro Project

Water Quality Modeling of Shallow Surface Active Streams—A Case Study

Oxidative and Non Oxidative Ammonia Modeling

Comparison of Wastewater Parameters and Estimation of Coefficients for Design

 

 

 

 

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