Modeling Speciation of Metals in Stormwater Runoff
The objective of this paper is to define key chemical processes and water quality constituents that control the partitioning and…
Storage Tanks and Sewerage Upgrading
This paper covers the use of storage tanks for rehabilitating hydraulically deficient sewer systems. The use of such detention tanks…
Sewerage Rehabilitation Philosophy
In any exercise to improve efficiency, the greatest opportunities for savings will usually be in areas where maximum expenditure is…
Sewer Renovation – Established and Developing Techniques
Sewer renovation is defined as “methods by which the performance of a length of sewer is improved by incorporating the…
United Kingdom Water Distribution Strategy
The purpose of my talk this morning is to lay a foundation for the remainder of the day by describing…
Television and Scanning Sonar in Seattle Metro’s Siphons and Brick Sewers
Before rehabilitation techniques can be selected, it is necessary to identify the performance deficiencies of the pipeline. This requires comprehensive,…
The Safety Implications of Inspecting Large-Diameter Sewers
The Municipality of Metropolitan Seattle (Metro) has approximately 11 miles of large-diameter brick sewers constructed in the early 1900’s For…
New Dimensions in Infiltration/Inflow Analysis
A continuous flow simulation model has been developed to relate causative rainfall to sewer inflow and infiltration. It addresses many…
Nitrification Design for the Central Valley Facility
This paper presents the results of a nitrification alternatives study that was performed at the Central Valley Water Reclamation Facility…
Treatment Plant Design Optimization: How Big is Big Enough
This paper presents the results of a re-rating study for the activated sludge system at the Municipality of Metropolitan Seattle’s…
Atlanta’s Phosphorus Removal Program Interim Biological – Chemical Removal of Phosphorus
The City of Atlanta is currently expanding its water reclamation centers (WRCs) to meet a 0.75 mg/l effluent phosphorus limit….
It’s True! Environmental Regulations That Can Improve Your Bottom Line
The California Source Reduction and Hazardous Waste Management Act of 1989, commonly referred to as Senate Bill 14 or SB14,…