EPA's I/A Program Speeds Use of New Wastewater Treatment Methods
Because Congress felt there wasn't enough cost- and energy-saving innovations taking place in the environmental field, it launched the innovative and alternative technologies...
Major Changes Ahead in the Nation's Water Cleanup Program
The federal budget squeeze is about to bring some sweeping changes in the nation's water clean-up program. The federal construction grants program will very likely be phased...
Stopping Water with Chemical Grout
New chemical grouts are now available to repair sewer leaks, control groundwater movement, and stabilize incompetent soils. Some of these grouts came into being only after the American...
Pure and Wholesome
Four papers published between 1899 and 1907 describe problems in sanitary engineering encountered during a time of rapid urbanization. In these papers and associated discussions, leading...
Expansive Soils
Fifty-two papers presented at the Fourth International Conference on Expansive Soils are included; conference panel and open discussions are summarized. Engineers often predict anticipated...
Appropriate Technology in Resource Conservation & Recovery
Six contributions to proceedings of an October 1979 ASCE workshop deal with both developing and industrial countries. A review of debris accumulation in urban areas reveals archaeological,...
Carbon Treatment of Drinking Water: N.J. Plant Trying to Get Out Bugs
The federal Environmental Protection Agency wants drinking-water plants in the U.S. to install granular activated carbon treatment. Such would remove synthetic organics in the water. There's...
Power Line Stresses Environmental Concern
A recently constructed power line in Colorado and Wyoming has been labeled a leader in protecting the environment and enhancing the area's natural scenic beauty. Built by...
Multimillion-Acre Tea Bag
Just as pouring the same cupful again and again through a tea strainer makes bitter tea, so irrigating again and again with return-flow water concentrates salts in the water supply. While...
River Clean-Up Plan Developed with Citizens and Industry
In Wisconsin, a group of citizens has worked closely with industry and professional water quality planners to develop a plan to make a once polluted river fishable/swimmable. This plan,...
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,...
Mount St. Helens Eruption�Impact and Civil Engineering Response
The May 18 eruption of Mount St. Helens in Washington state, estimated to have the energy equivalent of a 20 to 50 megaton atom bomb, did tremendous damage. It destroyed an estimated 160...
Municipal Sewage: Three Communities Try to Cope
To meet federal clean water guidelines, New Hampshire's Winnipesaukee River Basin, the City of San Francisco, and the City of Milwaukee have to upgrade their treatment to...
Efficiences of Advanced Waste Treatment Obtained with Upgraded Trickling Filters
Many or most cities and towns, and particularly the smaller ones, still use trickling filters in their wastewater treatment plants. The process is economical and reliable, but unfortunately...
What's Happened to the Quality of Asphalt�
After the 1973 oil embargo, state highway departments began complaning that the asphalt cement supplied by refineries did not have as before. Although the asphalt met departmental specifications,...
Sand to Sandstone: Foundation Strengthening with Chemical Grout
A large school in San Francisco, built in 1930, was in need of structural rehabilitation to eliminate earthquake hazards. Founded on loose, windblown fine sand, the footings were subject...
Largest Rotating Biological Contactor Plant Also First to Remove Nitrogen
Orlando, Florida is now constructing a new advanced waste treatment plant that removes both nitrogen and phosphorus to a high level. The plant is notable because it is the largest rotating...
How to Remove Trihalomethanes from Drinking Water
During the past year, there's been much concern about trihalomethanes (THMs) in drinking water; for they are suspected carcinogens. These chemicals are formed in the drinking...
USGS Sharpening Water-Quality Management Tools
By 1983, the U.S. will have spent over $83 billion to upgrade treatment facilities to advanced waste treatment. Much of this furious effort will be in vain, won't produce...
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