Concentrated Animal Feeding Operations (CAFOs) and Nitrogen Conversions in the Groundwater Environment
EPA's regulatory focus on concentrated animal feeding operations has historically concentrated on potential surface water impacts from direct discharges as well as nutrient-laden runoff....
Introduction
Historically, animal waste was considered a valuable fertilizer and thus land was applied for sustainable on-farm production of crops and animals. However, with the shift to large production...
Fate of Nitrogen Compounds in Animal Waste Lagoons
This chapter examines the fate of nitrogen compounds in animal waste lagoons. Topics include nitrogen in animal waste lagoons; transformations and removal; and subsurface transport....
Clogging of Animal Waste: An Overview
This chapter examines research addressing the mechanisms that play a role in the clogging of lagoon liners by animal waste....
Evaluating Seepage Losses and Liner Performance at Animal Waste Lagoons using Water Balance Methods
This chapter discusses techniques for evaluating seepage losses from existing animal waste lagoons under field conditions....
Air Quality Issues Associated with Livestock Production
This chapter reviews the current state of the art on air quality issues associated with animal waste containment. Outdoor waste storage and treatment systems are emphasized. Air quality...
Evaluation Plan for the Group Evaluation of Soil Stabilization and Dust Suppression Products
This Evaluation Plan describes the nature and scope of an evaluation to determine the performance aspects and the environmental impacts of soil stabilization and dust suppression products. A number of...
Putting Down Roots
Phyto-covers are environmentally friendly and cost-efficient landfill barriers. Compared to traditional clay or geofabric caps, phyto-covers require less maintenance and are more friendly...
Modeling Impact of Animal Waste in Penang Coastal Water
The Causticity of Accelerator for Shotcrete and its Impairment on Strength of Shotcrete
How on earth is the toxic and caustic injury of accelerator for shotcrete to operators and animals? How about its impairment on strength of shotcrete? The paper gives some reports and...
The Development of Fishery Habitat Value in Created Salt Marshes
This Coastal Ocean Program project was designed to examine the functional developmental rate of ten created marshes ranging in age from 3 or 15 years in the Galveston Bay system of Texas....
A Comparison of Electromagnetic Survey Results and Groundwater Quality Samples at an Animal Waste Storage Pond
Animal waste storage ponds are widely used to store manure over winter until it can be surface applied to growing crops as a fertilizer. There is an increasing concern for groundwater...
An Integrated Human/Plant Metabolic Mass Balance Model
The design and development of Controlled Ecological Life Support Systems (CELSS) in support of future Lunar and Martian bases requires analytical models for evaluating human and biological...
Cloud Seeding: The Engineering is Done, but What About Social Impacts?
As engineers, we tend to focus on the technical aspects of cloud seeding, and may neglect important social aspects or potential side effects. Often people in the target area are more concerned...
Interpreting Dredge Material Bioassay Data—COBIAA
Two types of sediment bioassays may be conducted in the regulatory evaluation of dredged material, toxicity tests and bioaccumulation tests. COBIAA (for the Consequences of Bioaccumulation...
Diastolic Function Using 3-D Echo Reconstruction and Finite Element Analysis: Applications for Study in Animal Models and Patients
We have initiated animal experiments using three-dimensional reconstruction of echocardiographic recordings and finite element analysis to evaluate the effects of alterations in preload,...
Studies on Meiofauna on Rio de Janeiro Coast, Brazil
This work presents a preliminary survey of the meiofauna groups and the distribution, abundance and temporal changes of the community at Praia Vermelha (Rio de Janeiro, Brazil), in July...
Restoration of Coastal Dune Systems in Southern California State Parks
Coastal dune systems in southern California possess little of their historical and biological characteristics. If not completely extirpated by development, then the loss of native plants...
Terrain Conductivity to Define Groundwater Pollution
Electromagnetic terrain conductivity surveys were conducted at four animal waste lagoon sites in South Carolina in an effort to delineate groundwater contamination from animal waste lagoon...
Artificial Gravity Research Facility Options
On a long duration manned mission to Mars, the physiological changes caused by microgravity may be counteracted by artificial gravity. This paper evaluates several different classes of...
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