A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Rehabbing Aging Infrastructure
As much of the wastewater and sewer infrastructure in the United States approaches the 50- to 100-year mark, it must be rehabilitated to remain in use for a growing population. Yet municipal wastewater treatment facilities, sewers, and vaults endure some of the most severe and corrosive environments in the water industry and must pass increasing Environmental Protection Agency (EPA) scrutiny. At industrial plants as well, EPA enforces requirements to ensure that industries pretreat pollutants in their wastes to protect local sanitary sewers and wastewater treatment plants. Such extreme wastewater handling environments operate under continual chemical exposure and heavy abrasion that deteriorate concrete and corrode steel in clarifiers, containment pits, anaerobic digesters, manholes, tanks, and other infrastructure assets. Cracks can develop in aging concrete wastewater infrastructure for various reasons, ranging from earth movement to daily or seasonal temperature changes that cause expansion and contraction (for example, freezing and thawing).
Rehabbing Aging Infrastructure
As much of the wastewater and sewer infrastructure in the United States approaches the 50- to 100-year mark, it must be rehabilitated to remain in use for a growing population. Yet municipal wastewater treatment facilities, sewers, and vaults endure some of the most severe and corrosive environments in the water industry and must pass increasing Environmental Protection Agency (EPA) scrutiny. At industrial plants as well, EPA enforces requirements to ensure that industries pretreat pollutants in their wastes to protect local sanitary sewers and wastewater treatment plants. Such extreme wastewater handling environments operate under continual chemical exposure and heavy abrasion that deteriorate concrete and corrode steel in clarifiers, containment pits, anaerobic digesters, manholes, tanks, and other infrastructure assets. Cracks can develop in aging concrete wastewater infrastructure for various reasons, ranging from earth movement to daily or seasonal temperature changes that cause expansion and contraction (for example, freezing and thawing).
| British Library Online Contents | 1994
| British Library Online Contents | 1994
America's Aging Dam Infrastructure
British Library Conference Proceedings | 2014