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...
CE Interview: John Hernandez (Part II)
Since the Reagan administration took over the Environmental Protection Agency in 1981, there have been few decisions that have not stirred controversy. In the second part of an interview...
The 1970s�ASCE Professional Activities
During the 1970s the Society had many impressive accomplishments, as documented by a multi-media presentation at the 1980 annual convention. Ten of these achievements are described, including...
Entrenchment of Sewage Sludge�a Disposal-Use Alternative
Entrenchment of sewage sludge is an alternative for the disposal and use of sewage sludge. Its advantages include high disposal rate, little odor problem, and no surface runoff. Two methods...
Duluth Sanitary District First in U.S. to Take Charge of Both Sewage and Refuse
The Western Lake Superior Sanitary District, serving Duluth, Minnesota and its suburbs, is the first sanitary district in the U.S. to be responsible for both wastewater and municipal refuse...
Municipal Wastewater Treatment Plant Pioneers in Conservation Approach
One way to save fuel costs in sewage treatment plants is to use methane gas produced during sludge digestion as fuel. Cleveland's Southerly Wastewater Treatment Plant, however,...
First U.S. Carrousel Racetrack Sewage Plant: simple, economical, excellent removeal.
Campbellsville, Kentucky will be the first community in the U.S. to use a promising new sewage treatment process�� the so-called Carrousel process. The process uses turbine aerators both...
EPA Goes to BAT Against Toxic Industrial Wastewater
Industrial wastewater discharged into municipal sanitary sewers can pass untreated through the treatment plant and into the receiving water. Some industrial wastes can also harm biological...
Harrisburg Pioneering Codisposal of Refuse and Sludge
Harrisburg, Pa. is doing something that sounds like common sense yet which has been done by very few communities in the U.S.: disposing of both its municipal refuse and sewage sludge in...
Engineering Scheduling with Manpower Allocation
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European Water Treatment Practices�� Their Experience with Ozone
Today, more than 1100 water treatment plants worldwide use ozone for some purpose. In Europe, it is always regarded as a water-treatment technique and seldom simply as a disinfectant....
European Water Treatment Practices�� The Promise of Biological Activated Carbon
Bacterial growths occur in all granulated activated carbon columns. In fact, it is difficult to prevent such growths. The Germans now deliberately foster aerobic bacterial growth by providing...
Can California Cope With Its Mounting Sludge Volume�
In California, prohibition of ocean disposal of sludge, stringent air quality standards, high energy cost, and scarcity of suitable sanitary landfills make the sludge management problem...
EPA Proposes Far-Reaching Regulations for Reducing Synthetic Organics in Drinking Water
In late January, 1978, EPA proposed far-reaching regulations for reducing synthetic organic chemicals in drinking water, bringing about the most sweeping changes in the water-treatment...
Rouen, France Water Treatment Plant Using Biological Activated Carbon
The la Chapelle drinking water treatment plant in Rouen, France was designed specifically to incorporate biological activated carbon (BAC). With many U.S. cities faced with the prospect...
Sludge Pyrolysis: How Big a Future�
Pyrolysis is the destructive distillation of combustible elements by heat in the total absence of oxygen. Partial pyrolysis or starved air combustion is the gasification of a material...
Chicago Sanitary District Pioneers in Controlling Flooding, Water Pollution
Chicago's Metropolitan Sanitary District is a national leader in at least four areas: (1)Controlling overflows of combined sewers. Chicago's answer to this problem...
Treating Waste Streams: New Challenge to the Water-Treatment Industry
Increasingly, state and federal water pollution control agencies have been becoming more strict about pollution from drinking water treatment plants. Specifically, most water treatment...
Aerated-Pile Composting: A Promising New Alternative for Sewage Sludge Disposal
In the past several years, traditional methods of sludge disposal such as incineration and ocean dumping have come under fire from environmental groups and the EPA. This has sparked a...
Florida Sewage Plant First to Remove Nutrients with Bacteria Alone�� No Need for Costly Chemicals
Palmetto, Florida is now constructing the first advanced wastewater treatment plant in the U.S. to use the Bardenpho process. Unlike other AWT processes, this ingenious plant removes pohosphorus...
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