Sewers: Repairing Beats Replacing
Rehabilitating decaying sewers can be up to 70% less costly than replacing them. Yet most sewerage agencies wait until a pipe collapses before taking action, necessitating expensive emergency...
Methods of Ice Control
Ice control is the practice of holding ice in place or directing its growth and movement. Methods of ice control in navigable waters including locks are presented. Ice carried downstream...
The Incidence, Monitoring, and Treatment of Viruses in Water Supply Systems
A State-of-the Art Review
Two areas of growing concern in water treatment and public health are the potential for spread of viruses by water routes and the adequacy of current treatment and disinfection practices...
Upgrading Water Filtration Plants
Adding or improving mixing, flocculation, and sedimentation devices, and changing filter media can significantly increase water filtration plant capacity. Water quality can often be improved...
Progress in Urban Hydrology in the Federal Republic of Germany since 1979
The importance of urban water problems have been increasingly realized in the 70's also in the Federal Republic of Germany (FRG). State authorities, communities, universities,...
Progress Since 1979 in Sweden
During the past 20 years hard effort has been devoted to the protection of rivers and lakes from pollution. This effort has mainly been focused on the obvious sources of pollution i. e....
Progress Since 1979 in Norway
Following the completion of the major research program 'Purification of Wastewater' in 1978, the organized research activities in urban hydrology almost came...
Progress Since 1979 in the Netherlands
Since the last progress-report still more emphasis has been laid on quality aspects of surface waters. Municipalities as well as Provinces and the national government are responsible for...
Current Status of Urban Hydrology in Finland
Due to a smaller scale of urban problems on Finland, active research work on urban hydrology began as late as in the mid-1970's. The major urban hydrology and related studies...
Structural Lumber: An Overview of Research Needs
Structural performance of lumber is influenced by the processing steps from forest to final end-use and by the end-use environment. Research needs in processing include: 1) selection of...
Journal of Environmental Engineering
The Journal of Environmental Engineering presents broad interdisciplinary information on the practice and status of research in environmental engineering science, systems engineering, and sanitation. Papers...
Grouting in Geotechnical Engineering
The 63 pages included in these proceedings came from 12 different countries and deal with the pertinent advances in grouting materials and technology that have occurred throughout the...
Research and Development for Increased Productivity�Where We Must Go
A well-focused research and development activity must be the essential foundation of any long-range success in maintaining high and increasing productivity in manufacturing, the efficient...
Natural Treatment Systems in Wastewater Treatment and Sludge Management
Criteria defining performance of natural wastewater treatment and sludge management systems are presented. Objectives of natural treatment systems are to help treat municipal wastewater...
Will Reforms Improve Sewage Treatment Plant Performance?
After an exhaustive investigation, a Congressional subcommittee recommended more than 20 legislative and administrative reforms aimed at improving performance and economy of the wastewater...
Water Pollution Control Plant Upgraded to Meet EPA Regs
An Outstanding Civil Engineering Achievement Award Nominee, Philadelphia's Southwest Water Pollution Control Plant, has a $300 million addition which nearly doubled plant...
Water and Energy
Technical and Policy Issues
Industrial, political, legal, hydrological, and environmental issues surrounding development of energy and associated water resources are examined in this collection of papers presented...
Environmental Engineering
The Proceedings of the 1982 ASCE National Conference on Environmental Engineering includes papers on a broad spectrum of environmental issues. Over one hundred papers were presented addressing...
New Evapotranspiration Process: Key to Zero Discharge for Electroplaters
The electroplating process and methods of handling electroplating wastes at the Naval Air Rework Facility in Pensacola, Florida are described. In the past, evapotranspiration as a treatment...
State Officials Sound Off on Most Pressing Water Quality Issues
In the months ahead, Congress will undertake the awesome task of amending the nation's most important law regulating water pollution control: the Clean Water Act of 1977....
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