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Modeling Groundwater Response to a Perimeter Flood
A large industrial facility in the west of France was impacted by a flood in January 1995. Costs associated with the disruption in one week of production were estimated at $15E6 US. In...

Production of Nitrous Oxide Gas under Sequencing Batch Reactor System
N₂O, like CO₂, H₂O, and CH₆,...

Fluidized Bed Denitrification of Secondary Effluent during Wastewater Reclamation in Southern California
A pilot scale fluidized bed denitrification bioreactor was operated for a period of three years as one unit process in a series designed to repurify secondary effluent for subsequent indirect...

Anaerobic Biodegradation of High Energetics in Digestion Sewage Sludge
The digested sewage sludge culture is highly effective for denitrification and the subsequent degradation of energetics contained nitrites. Two energetics, ADN (ammonium dinitramide) and...

Mitigation of Predation at a Juvenile Bypass Outfall Site
Reducing predation at an outfall has become an increasingly important consideration in the design of a juvenile salmonid bypass system. To minimize the exposure juveniles have with predators...

Mitigation Wetland Losses for a Major Transportation Improvement Project in New Hampshire
To compensate for 103 acres of wetland impact from a 17.6-mile upgrade of NH Route 101 between Epping and Hampton, New Hampshire, NH Department of Transportation (NHI)OT) and Normandeau...

Significance of Geologic Features on the Contaminant Migration from Landfill Sites
Contaminants (leachate) migration pathways in various media at hazardous waste and landfill sites are primarily defined by the local geologic features at such sites, namely:stratigraphy,...

Conveyance of Water and Wastewater Residuals
The treatment of water and wastewater results in the production of significant quantities of residual suspended solids which must be further processed prior to discharge/disposal. Invariable,...

Infiltration Properties at Two Sites in the Konza Prairie
The spatial variability of soil hydraulic properties that govern infiltration were investigated at a pristine site and an agricultural site in the Konza Prairie Research Area of east-central...

Costs of Treatment for Wastewater Reclamation and Disposal: A Preliminary Assessment
Our objective is to estimate the marginal costs of different degrees of water reclamation treatment (primary, secondary, and tertiary), using the Los Angeles County Sanitation District...

The Balanced Indigenous Population (BIP) and Statistical Process Control (SPC) in Marine Pollution Ecology
This account discusses the regulatory requirement of maintaining a Balanced Indigenous Population (BIP) as it relates to an ocean outfall. A brief history of the development of the BIP...

Whither Nuclear Waste Disposal?A 50th Anniversary View
The world recently observed the 50th anniversary of the first use of the atomic bomb. Thus major sources of nuclear wastes, from defense and power generation, have been around for slightly...

Mixing Influences on Cement-Based Waste Forms
High-shear, medium-shear, and low-shear mixing tests were conducted on paste and paste + fly-ash mixes: The specimens, cured for 28-days, were tested for free water generation, compressive...

A Process Unit Based Approach to Media-Integrated Waste Minimization: A Paint Manufacturing Case Study
Research conducted at the School of Engineering, University of Guelph, has developed a media-integrated waste minimization plan for a major Ontario paint and coatings manufacturer. The...

Identifying Potential Trophic Relationships and Bioaccumulation Pathways between Fish and Invertebrates
A large ocean monitoring database was used to quantify relationships between demersal fish, epibenthic macroinvertebrates (EMI) and benthic infauna that provide potential pathways for...

Retention-Tank Systems: A Unique Operating Practice for Managing Complex Waste Streams at Research and Development Facilities
The importance of preventing the introduction of prohibited contaminants to the sanitary sewer is critical to the management of large federal facilities such as the Lawrence Livermore...

Design and Construction of the Santa Ana River Wash Crossing of the Inland Feeder
The Inland Feeder Pipeline passes beneath the Santa Ana River in Southern California. The flood plain of the river provides the habitat for two endangered species and to avoid surface...

Flood Control Studies for Arizona Communities
Severe flooding in the winter of 1992/1993 produced severe flooding across the State of Arizona. Damages were widespread and significant. Total public and private damages are estimated...

Earth Spillway Design Using SITES Software
The USDA Natural Resources Conservation Service has, recently released new software for the design and analysis of water resource structure sites. This software, SITES, is based on the...

External Inspection of an Ocean Outfall
In October and December, 1994, an external inspection was performed on the County Sanitation Districts of Orange County's (Districts) ocean outfall. This presentation describes...

 

 

 

 

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