Intermediate Service Levels in Water Distribution
This paper is concerned with design standards for secondary water distribution networks. Based on field studies in the Middle East and Africa, mathematical equations were developed for...
Land Treatment Systems and the Environment
This paper summarizes the results from several experiments using the rapid infiltration, overland flow and slow infiltration modes of land treatment....
What Contractors Think About Prefabricated Piping
Among 190 of the largest users of pipe, 77% now use large-scale prefabricated piping. These users report an average saving, using prefabricated pipe versus conventional pipe, of 23%. Before...
Citizen Participation for Successful Village Water Supply
In developing nations, two keys to the success of village water supply projects are citizen planning and the use of the appropriate technology. The two are related. Involvement of citizens...
Reservoir Outlet Extended Above Silt to Prevent Clogging
Accumulation of silt in an on-stream water storage reservoir almost completely buried the concrete tower originally provided as an outlet intake shaft for releasing stored water through...
Proceedings Volume I
Polyphase Flow Transients Pressure Recovery Devices Intake Structures Cooling Water Systems
The papers presented in these proceedings represent a variety of disciplines from many countries. This unique jointing of three major societies has created a collection of papers with...
Proceedings Volume II
Cavitating Flows?Flow Effects on Structures Supercavitating Machinery Fluid Machinery Design
The papers presented in these proceedings represent a variety of disciplines from many countries. This unique jointing of three major societies has created a collection of papers with...
Alternatives to End-of-Pipe Treatment
End-of-pipe treatment must be replaced by innovative, in-process changes if industrial plants are to creatively meet the upcoming 1983 EPA pollution control requirements. By-product recovery,...
A Hydrographic Surveyor's Most Memorable Day
Holbert Fear's most memorable day in a career as a hydrologist with the U.S. Geological Survey was in 1917, near Hanna, Wyoming. Fear was sent out to measure the flow of the North Platte...
Minnesota Interceptor Sewer Breaks New Ground
The Beltline Interceptor is a gravity interceptor sanitary sewer which has its outlet in St. Paul and its beginning in White Bear Lake. Major requirements called for a design which would...
An Experience in Standardization of Nuclear Power Plants
This article outlines successful efforts at design of five standardized nuclear units, in four different states in the U.S.A., for a group of five utilities. The Standard Power Block,...
Advances in Civil Engineering Through Engineering Mechanics
Proceedings of the Second Annual Engineering Mechanics Division Specialty Conference, held in North Carolina State University, Raleigh, North Carolina, May 23-25, 1977. Sponsored by the...
Concentric Waste-Treatment Plant Saves Land
An activated-sludge treatment plant in Camden, N.Y. has several innovations: the principal one is the use of concentric tanks�� as distinct from the usual way of having separate, isolated...
Plastic Filter Fabrics Have Bright Future
There are thousands of existing installations using filter fabrics in North America and additional thousands in Europe, most built in the past 10 years. The momentum is gathering. Filter...
Paul Bunyan Among Offshore Steel Structures
The world's two largest drydocks, the larger 1,150 x 800 ft in plan were used to assemble on land the four steel jackets. They now stand in the North Sea in about 400-ft of...
Inverted Filter Stabilizes Soil, Stops Erosion
The inverted filter concept was invented by Karl Terzaghi to prevent dams from failing by water piping through the foundation. Laboratory and field testing have refined the necessary specifications...
Porous Friction Course Solves Airport Hydroplaning Problem
Several hydroplaning incidents had occurred at the Greensboro-High Point-Winston Salem Regional Airport, N.C. Hydroplaning occurs when hydrostatic pressure builds up in the field of surface...
Gabions, Perforated Pipe and Gravel Serve as Fish Screens
A type of structure to prevent juvenile salmon from diverting to irrigation ditches has been developed on the Merced River in central California. It was built after cost considerations...
Polyethylene Pipe Solutions to Sewer Outfalls
One of the primary concerns of the Chief of Naval Operations is to insure that environmental pollution standards are met in this country and abroad at those naval bases near oceans or...
Russia Redistributes River Flow
Large interbasin water-transfers are underway with several more scheduled in the Soviet Union, changing the direction of natural river flow. The overall plan is to expand agricultural...
Return to search