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...
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...
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...
NYC's Plan to Meet the Water Quality Challenge
Most parts of New York City's waterways do not meet state standards. Combined sewer overflows cause the discharge of raw sewage. The City's ancient sewer system...
Containment Aspects, Scrubber Sludge Disposal System
Containment of flue gas desulfurization sludge from a coal-fired power plant was accomplished by Dravo Corporation in an environmentally acceptable manner through the construction of an...
Energy Utilization and Conservation in Wastewater Treatment
Rising costs of energy, and its limited supply in the United States, is requiring engineers to investigate the application of energy efficient processes for wastewater treatment. Energy...
A Look at Newer Methods for Dewatering Wastewater Sludges
The U.S. water cleanup effort is resulting in the production of huge quantities of additional sludge. Because of the difficulty of disposing of this sludge, it is usually dewatered. Although...
New Gravity/Pressure Unit Cuts Sludge Dewatering Costs
A new device for dewatering sludges from either industrial or municipal waste treatment plants promises to cut both initial capital and operating costs over more traditional methods such...
Recycling Allows Zero Wastewater Discharge
St. Petersburg, Florida, committed itself to total recycling of its wastewater with zero discharge to its surrounding bays. They plan to accomplish that goal through land disposal techniques....
Sewage Treatment Plant Design
The purpose of this manual,
Return to search