Scenario

01. Poor Value Perception
02. Poor Safety Awareness
03. Inadequate Risk Recognition
04. Organizational Problems
05. Inflexible Management Structure
06. Insufficient Education/Training
07. Ignorance
08. Insufficient Knowledge
09. Insuficient Study and Experience
10. Planning and Design
11. Poor Planning
12. Poor Planning of Repair
13. Usage
14. Maintenance/Repair
15. Hot Work
16. Bad Event
17. Chemical Phenomenon
18. Dispersion
19. Secondary Damage
20. External Damage
21. Explosion
22. Bodily Harm
23. Injury
24. 4 person injured

Explosion due to sparks of an electric grinder during repairing a wastewater treatment vessel with neutralization
Case Details

Knowledge Comment:
A process waste water is a dabgerous material which was dissolved many materials in the process. It is just like a suicide to do hot work near the process waste water.

Field Chemicals and Plants
Author WADA, Yuji (National Institute of Advanced Industrial Science and Technology)
TAMURA, Masamitsu (Center for Risk Management and Safety Sciences, Yokohama National University)