GVRD has experimented with full-scale primary sludge thermophilic digestion at is Lion’s Gate Plant for about 2 years. Two-stage continuous…
The U.S. Environmental Protection Agency (EPA) recently increased and tightened performance evaluations on municipal industrial wastewater pretreatment programs, therefore, many…
The best way to regulate metals in stormwater runoff has been widely discussed. Historically, instream quality criteria for metals, including…
The objective of this paper is to define key chemical processes and water quality constituents that control the partitioning and…
This paper covers the use of storage tanks for rehabilitating hydraulically deficient sewer systems. The use of such detention tanks…
In any exercise to improve efficiency, the greatest opportunities for savings will usually be in areas where maximum expenditure is…
Sewer renovation is defined as “methods by which the performance of a length of sewer is improved by incorporating the…
The purpose of my talk this morning is to lay a foundation for the remainder of the day by describing…
Before rehabilitation techniques can be selected, it is necessary to identify the performance deficiencies of the pipeline. This requires comprehensive,…
The Municipality of Metropolitan Seattle (Metro) has approximately 11 miles of large-diameter brick sewers constructed in the early 1900’s For…
A continuous flow simulation model has been developed to relate causative rainfall to sewer inflow and infiltration. It addresses many…
This paper presents the results of a nitrification alternatives study that was performed at the Central Valley Water Reclamation Facility…