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Damage to sewage treatment systems caused by the Great East Japan Earthquake and the government's response

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Abstract:

A large number of sewage facilities were severely damaged by the Great East Japan Earthquake in March 2011, mainly by the tsunami caused by the massive earthquake. The large-scale damage caused shortage of information, personnel and materials and caused great confusion. In response, the Japanese government set up on-site disaster management headquarters to take urgent action including gathering and analyzing information and local rescue operations. Since the sewage systems in the affected areas had not been fully designed to cope with tsunami damage, effective restoration procedures and policies for improving tsunami resistance were required. In order to solve technical problems and quickly restore sewage systems, a technical review committee of experts and specialists was set up to consider ways to prevent damage to sewage systems by earthquakes and tsunami. This Committee analyzed the characteristics of the damage and made four proposals on emergency response, emergency restoration, full-scale restoration, and new policies for tsunami countermeasures. Based on these proposals, actions to fully restore the affected areas were rapidly taken.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864712811709445

Publication date: 2012-01-01

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