Carbonyl Extraction of Lunar and Asteroidal Metals
The century-old Mond process for carbonyl extraction of metals from ore shows great promise as an efficient, low energy scheme for producing high-purity Fe, Ni, Cr, Mn, and Co from lunar...
Plasma Reactor Waste Management Systems
The University of North Dakota is developing a plasma reactor system for use in closed-loop processing which includes biological, materials, manufacturing, and waste processing. Direct-current,...
Oxygen Production for a Future Lunar Base
This paper discusses various ways for providing oxygen for a lunar base. Currently, there are three methods available which are technologically possible. One of these is the use of chemical...
Out of the Mainstream
By treating only part of the wastewater stream, a biological/chemical phosphorus removal system also reduces chemical costs and sludge production. The system consists of two 60 ft dia...
Program to Reduce Deicing Chemical Usage
Over the years (since about 1948), the dependency on deicing chemicals has been increased to provide 'bare pavement' for safe and efficient winter transportation....
Recovery Efficiency From Single-Well Injection/Recovery Tests in a Limestone Aquifer of High Secondary Porosity
An analytical advection-diffusion model was developed to assess the feasibility of injecting and recovering water in a limestone aquifer of high secondary porosity. The model was calibrated...
Artificial Recharge of Ground Water
A need for international and interdisciplinary technology transfer on the subject of artificial recharge resulted in the American Society of Civil Engineers' (ASCE) Irrigation...
Positioning for Success
A model, called the SuperPositioning Model, for successful management of engineering design firms is discussed which allows firms to be categorized within a matrix bounded by two primary...
The Ozone Defense
Ozone is a molecule containing three oxygen atoms. When bubbled through drinking water, the third atom in ozone is attracted away by other molecules, a process called oxidation. This process...
Managing Dioxin
Dioxins, among the most toxic compounds known to man, are by-products from production of other chemical products. There are currently about 5000 metric tons of dioxin-containing wastes...
Taking Water to Market
If the West is to enjoy continued population growth and economic development, huge volumes of water must be switched from farming to municipal uses. A free market in water will encourage...
Synthetic Organic Contaminants and Pesticides in Groundwater
For decades, the groundwater of Suffolk County, New York, has been bacteriologically and chemically of superior quality despite the high iron and manganese occasionally encountered in...
Physical and Chemical Treatment of Contaminated Groundwater at Hazardous Waste Sites
In selecting an appropriate groundwater treatment system, three steps are normally followed. 1. A groundwater investigation is performed to determine the types and concentrations of contaminants...
Philippine C Z Management: Organizational Linkages
This case study explains the Philippine government's program for the administration of its coastal zones. It analyzes the legal and institutional setup while emphasizing the...
Decisionmaking for Dredggedg Material Management
Management of dredged material produced in coastal environments is greatly complicated by the presence of chemical contaminants in the material. The kinds and quantities of contaminants...
Salmon Restoration in Humboldt Bay: A Model of Citizen and Government Participation
Two organizations emerged in 1969 that successfully brought together a wide variety of public and private entities and government agencies with the goal of reversing the decline of the...
Effects of Toxic Chemical Perceptions on Fishing Behavior
This study investigates: 1) whether angler's who perceive toxic chemicals in the water fish any differently than those who do not, and 2) do these behavioral differences have...
Implementation of Annex II to Marpol 73/78 and the Impact on Reducing Pollution in the Coastal Zone
Implementation of the International Treaty for the Prevention of Marine Pollution from Ships 1973, as amended by the Protocol Related Thereto, 1978 (MARPOL 73/78) will help to reduce the...
Overlooked Tools that Build Coastal Constituencies
The need for public involvement was recognized by the authors of the original Coastal Zone Management Act in 1972. Detailed requirements and recommendations were set forth on Public participation...
Oil and Fisheries?Conflict or Cooperation
The Grand Banks of Newfoundland are one of the richest fishing grounds in the world. The proposed Hibernia oil field development will impact on this resource. Recommendations have been...
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