Thursday, 26 April 2012

BHOPAL GAS DISASTER UNSAFE CONDITION

 From the published press reports they seem to be:
1.         The refrigeration system to keep the gas cool was closed since long.
2.         The vent gas scrubber was underdesigned, not repaired and not connected.
3.         The corroded flare tower pipe not replaced and not connected.



  • 4.         The water curtain jests were underdesigned to reach the maximum height.
    5.         All the three tanks were filled in while one ought to have kept empty to use as emergency bypass.
    6.         The computerised pressure/temperature sensing system, a warning device to give alarm and to control the situation at the time of abnormal condition was not installed.



    7.         The carbon steel valves were used instead of stainless steel and the valves 'were notorious for leaking.
    8.         The instruments to check the valve-leakage were not available.
    9.         The wind direction and velocity indicator was not installed to warn the people about leakage direction and severity.
    10.       The neighbouring community was not told of the significance of the danger alarm and the dangers posed by the materials used in the plant.
    11.       Control instruments at the plant were faulty.
    12.       Maintenance and operational practices were deteriorated.
    13.       Chemical reactors, piping and valves were not purged, washed and aired before maintenance operations.
    14.       The blind disc to disallow the water in the tank through the valve was missing.

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