Sewreel Evaluation Prevents Collapses Around Gravity Main In Orlando, Florida
The City of Orlando had an evaluation performed on one of their large gravity sewer mains in March, 1999 using…
Value, Reliability, and Acceptability Key Considerations for a New Millennium
As a rule, pumping stations in municipal wastewater collection systems receive little notice during design, construction, and after startup…..until they…
A Tale of Three Cities: Different Approaches To Successful Competitiveness
Facing increasing financial pressure, water and wastewater utilities have had to become more cost efficient in their operations. The drive…
Impacts of Salt Content of Food Processing Wastewater Land Application
Food processing wastewater land application has been traditionally controlled by hydraulic loading rates, BOD loading rates or nitrogen loading rates….
Lessons Learned From the Design and Startup Of An Advanced Industrial Wastewater Reclamation System
This paper describes the pilot testing and implementation of a major advanced wastewater reclamation project to recover secondary effluent from…
Application of A Tracer Test to Determine Leak Location In An Underground Jet Fuel Line
In early 1998, a catastrophic release of JP-4 jet fuel occurred from a subsurface fuel loop. A helium test method…
Impact of Irreversible Sorption On Bioavailability, Risk Assessment, and Site Remediation
Sorption and desorption processes strongly affect fate, transport, bioavailabilty, and risks of organic contaminants in the environment. Conventional isotherms often…
The Role of Community Interaction in Sewer System Improvement Planning
The City of Columbus, Ohio has undertaken an aggressive Inflow and Infiltration (I/I) Remediation Program to eliminate designed sanitary sewer…
A New Process For Enriching Nitrifiers in Activated Sludge Through Separate Heterotrophic Wasting From Biofilm Carriers
A new process, the biofilm-activated sludge innovative nitrification (BASIN) process, consisting of a moving-bed biofilm reactor (MBBR) with separate heterotrophic…
Building A Better Inspection Project From the “Underground” Up
Through a series of three consecutive projects beginning in 1996, the Northeast Ohio Regional Sewer District implemented a comprehensive program…
WERF: Sewer Inspection Prioritization Using an Expert System
The sewer infrastructure of the US must be assessed and upgraded to meet the requirements of the EPA Sanitary Sewer…
A Novel Sludge Suction Retrofit of The Metropolitian Wastewater Treatment Plants Final Settling Tanks
Brown and Caldwell designed a stationary sludge suction header as part of a retrofit of 3 of 24 rectangular final…