GE's PCB Remediation Plan Features Innovative Tunnel Design

摘要

Engineers at General Electric (GE) charged with remov-ing polychlorinated biphenyls (PCBS) from the Hudson River and its riverbed have developed a unique tunneling solution. Those engineers will quite literally be working from the ground up, as a pair of 925 ft (282 m) long tunnels expressly designed to capture PCBS will be bored approximately 60 ft (18.3 m) beneath the riverbed through the shale bedrock. A network of drains extending vertically and horizontally from the tunnels will collect PCB-tainted water that has seeped into the bedrock under the riverbed, and a pumping system will convey the contaminated water to GE'S riverside treatment plant, which will be expanded as part of the project.