Safety Evaluation of Urban Large Scale Sewage Treatment Plant

Gao Ping*, 1, Zhang Luyan2, Fu Gui1
1 Faculty of Resource & Safety Science Engineering, China University of Mining & Technology, Beijing, Beijing, 100083, P.R. China
2 Security Protection Department, BeiJing College of Politics and Law, Beijing, 102628, P.R. China

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© 2015 Ping et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


In recent years, accidents of urban large scale sewage treatment plant at home and abroad have took a big loss to countries and individuals. Based on field research and scientific analysis of one large sewage treatment plant this paper use the safety check list to evaluate its safety and get that the main risk factors which should be focused on are poisoning and suffocation, electrical injuries, fire and explosion. Using accident tree method to analyze electrical equipment accidents we know that in order to prevent electric shock accident first is to use the safety equipment and control leakage events due to dirty and wet.

Keywords: Accident tree, hazard identification, sewage treatment plant, safety evaluation, safety check list.