Iona Outfall Plume Characterization Study
Field studies were conducted in August 1988 to verify the performance of the new deep sea outfall for the Greater…
Suggested Methods for Calculating and Interpreting Calcium Carbonate Saturation Indexes
Calcium carbonate (CaCO3) saturation indexes are commonly used to evaluate the scale-forming and scale-dissolving tendencies of water. Assessing these tendencies…
Integrating Water Conservation into Total Water Management
Water suppliers are under increasing pressure to find and develop additional sources to deep up with growing demand, but the…
Water-Use Efficiency Standards for Plumbing Fixtures: Benefits of National Legislation
Proposed US legislation would establish nationwide water-use efficiency standards for plumbing fixtures and appliances. The legislation is intended to reduce…
Pipe Rehab: Old Notions Challenged
Do Not Disturb signs are being posted in America’s neighborhoods–and utilities are finding ways to avoid open-cut trenching techniques.
Managing Solid Residues from a Treatment Process for Priority Metals
Iron adsorption/coprecipitation is an economical process that, under the appropriate conditions, can remove dissolved and particulate priority metals to the…
Brick Sewer Life Extended
Analysis of brick-sewer performance and an understanding of failure mechanisms have saved Seattle more than $40 million in major rehabilitation…
02 Limitations in CH4 and NH4 + Utilizing Biofilms
Oxygen gradients can rapidly develop in fluid films covering biofilm in trickling filters. We use a computer model to calculate…
Evaluation of a Municipal Laboratory’s Computer Needs
The Information Age, with all of its demands and technological innovation, has reached the treatment plant laboratory. Today, computerized laboratory…
A Plant for All Seasons
Since modifying its treatment system to adjust to sharply different seasonal needs, Salem, Ore.’s Willow Lake Wastewater Treatment Plant is…
Thermal Storage Enhances Heat Recovery
Thermal energy storage teamed with heat recovery results in an efficient, low-maintenance, flexible mechanical system.
Maximizing a Wastewater Treatment Plant’s Capacity
An expansion project at Boise Cascade’s mill in International Falls, Minnesota, include evaluation of the mill’s wastewater treatment plant capacity….