Multifaceted Trenchless Rehabilitation at the Middletown, Ohio WWTPby Lori Jackson,
Abstract: This paper describes the multiple trenchless technologies that were evaluated and the ones that were applied to the rehabilitation of a 78la diameter corrugated metal influent line and concrete diversion chamber at the Middletown, Ohio Wastewater Treatment Plant. After evaluation, the construction of this unique project included a combination of four different trenchless methods to solve a challenging environmental problem: cured-in-place pipe, chemical grout, spray-on epoxy coating, and CCTV inspection. This cured-in-place line is currently among the largest diameter (78-inches) installations of cured-in-place pipe in the United States.
Subject Headings: Wastewater treatment plants | Trenchless technology | Rehabilitation | Curing | Pipelines | Chemical grouting | Metals (chemical) | North America | United States | Ohio
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