Making the Most of Every Drop
A large petrochemical facility in a water-limited area is facing a critical water problem because of several factors: total dissolved…
The Privatized Alternative Versus Public Financing “Is Low Bid the Lowest Price”
In 1991 the City of San Diego began pursuing privatization as an alternative to traditional City owned and operated facilities…
A Unique Opportunity for a Major Industrial Water Reuse*A Case Study
A petrochemical plant in Taiwan, R.O.C., consumes a large amount of water daily, supplied by a local water company, in…
Performance of an Infiltration Basin for a Commercial Office Park
Stormwater monitoring is underway for an infiltration basin that receives runoff from a commercial office park in the City of…
Simple Diagnostic Tests for Abnormal Operation
Prompt operational response to abnormal conditions is critical to ensure treatment plant performance and compliance are maintained. Laboratory data is…
Performance Quantified: The Impact of Final Clarifier Improvements on Effluent Quality
Construction scheduling for the expansion of the City of Greeley (Colorado) Water Pollution Control Facility from 12 to 16 mgd…
A Tabular/Graphical Approach for More Economical, User-Friendly Computerized O&M Manuals
Operation and Maintenance (O&M) Manuals are a valuable reference for day-to-day use in wastewater treatment plants. However, repeated surveys of…
Primary Sedimentation: It*s Performing Better Than You Think
Historical operating data from four full-scale wastewater treatment plants were used to evaluate an empirical expression describing primary sedimentation tank…
Developing Cost/Benefits for The Implementation of Computer Technology at Water and Wastewater Utilities
While it is clear that computer technology can ultimately improve many specific functions within water and wastewater utilities–and thus the…
Simulation of Dye and Suspended Solids Transport in Circular Secondary Settling Tanks
A mathematical model for predicting the flow field, suspended solids and dye transport in secondary circular clarifiers is presented. The…
Biodegradation of Phenanthrene in Sand Columns in the Presence of Non-Ionic Surfactants
The effects of three nonionic surfactants on phenanthrene (C14H10) removal and mineralization by aerobic bacteria were studied using a bench-scale…
Preservation and Protection of Drinking Water and Natural Water Quality
Population growth and competing demands within natural watershed boundaries may make existing drinking water supply inadequate for future demand. Watershed…