Evolution of Design: LA Metro Underground Structures
Tunnel Inspection and Rehabilitation for H2S Corrosion
Odor Control Process Selection Confirmation Using Dispersion Modeling
Aeration of Reservoirs and Releases TVA Porous Hose Line Diffuser
The Tennessee Valley Authority (TVA) has developed an efficient and economical aeration diffuser design that has been installed and operated successfully at five TVA hydropower projects,...
Trenchless Replacement & Corrosion Protection of Deteriorated Manholes
Wailupe Reconstructed Trunk Sewer ASCE Hawaiian Chapter Project of the Year 1993
Richard Pomeroy, 88, Dies; Known for Work on Hydrogen Sulfide in Sewage
Corrosion of HLW Carbon Steel Containers in the Vapor Phase of Salt Brines
Sensitized Photooxidation of Dissolved Sulfides in Water
The ability of methylene blue (MB) and riboflavin (RF) to sensitize dissolved sulfides for photooxidation was investigated. Both MB and RF were found to be effective sensitizers for the...
The Use of Iron Salts to Control Dissolved Sulfide in Districts' Trunk Sewers
Headspace H2S removal via the precipitation of dissolved sulfide was investigated using iron chlorides. Full-scale experiments were conducted in...
Tests for Biogenic Sulfuric Acid Corrosion in a Simulation Chamber Confirms the On Site Performance of Calcium Aluminate Based Concretes in Sewage Applications
Caustic Spray for Sewer Crown Corrosion Control
A novel method to control sewer crown corrosion which involves spray application of a caustic solution to the sewer crown is described. Corrosion control using this concept is based on...
Proactive Odor Control Using Computer Modeling
The City of Los Angeles (City) is currently designing the East Central Interceptor Sewer (ECIS) as a major relief sewer. The pipeline will convey wastewater flows that originate upstream...
Biochemical Control of Sulfide Production in Wastewater Collection Systems
Hydrogen Sulfide in Hydropower Reservoirs
Hydrogen sulfide is toxic to aquatic life and corrosive to construction materials at concentrations that are considerably lower than detection limits of analytical procedures commonly...
Fresno Sewers Suffer Sulfide Shock
Corrosion Below: Sewer Structures
When a sewer system fails, the cause is often not the pipe but a manhole, junction or other special-purpose structure. Most of these structures are concrete, either cast in place or precast....
Case Histories of Sulfide Corrosion
Section 522 of the Water Quality Act of 1987 requires the U.S. Environmental Protection Agency (EPA) to conduct a study of sulfide corrosion and control options in collection and treatment...
Simple Tests to Assess Water Quality in Indonesia
Photocatalytic Oxidation of Organic Compounds by CdS?Improvement of the Photostability of CdS
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