The New Regulations–A Challenge for Small Systems
This article illustrates how the 1986 amendments to the Safe Drinking Water Act may affect small water systems by focusing…
State-of-the-Art Denitrification Process Protecting the Florida Environment
Successful design and operation confirms innovative approach! A unique wastewater process for nitrogen removal is operating in Hillsborough County, Florida….
Comprehensive Rehabilitation Results From Stege Sanitary District
Seven sewer agencies, including Stege Sanitary District, in the East Bay of the San Francisco Bay Area embarked on a…
U.S. Pipeline Infrastructure and Trenchless Methods
For most industrialized nations, the needs in terms of pipeline infrastructure are changing. The need is trending away from the…
The Energy Amenity: Heat Pumps Serve District Heating in Treatment Plant Energy Programs:
A treatment plant’s primary mission is to treat sewage, not be an energy utility. An energy complex that combines energy…
Analysis of Water Conservation Measures for Public Supply
Benefits and cost analysis were performed for 20 water conservation measures. Ten water utilities in the Southwest Florida Water Management…
Three Industries Vie to Heat Springfield, Oregon
Springfield has three industrial plants, each with enough waste energy to heat most of the city’s commercial and institutional buildings….
Water Quality Thresholds for Lake Tahoe
Concern over the declining quality of Lake Tahoe led to the adoption of a compact between Nevada, California, and the…
Trenchless Techniques for Pipeline Installation, Renovation and Replacement
New construction methods have been developed primarily in Europe and Japan for underground pipeline work. The new methods, known as…
Removal of Trace Elements From Power Plant Waste Streams by Iron Adsorption Coprecipitation
This paper presents the results of a field demonstration of the adsorption/coprecipitation process at the Pennsylvania Power and Light (PP&L)…
Repair Lining of Large Diameter Reinforced Concrete Pipe
The six 54-inch-diameter reinforced concrete pipes between the influent pumps and the primary treatment structure at the Sacrament Regional Wastewater…
A Feasibility Test of an Anaerobic Trickling Filter
The plugging of downflow fixed film anaerobic reactors owing to solids overloads, biomass accumulation, or both, has been identified as…