Weak Sulphuric acid FRP tank collapse

In a factory, where 10 MT weak sulphuric acid was stored, suddenly the suction line valve tank nozzle assembly got broken and through this opening sulphuric acid drained out from the tank. This resulted in vacuum formation in the tank. This FRP tank hit against the supporting channel legs due to the formation of vacuum.
Causes :
1. The FRP tank was not maintained with a adequate strength and stability

2. The FRP tank was not tested and certified by the Competent person every year

 Source: DGFASLI

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Urea prill tower incident

In a Fertilizer manufacturing factory urea manufactured in prill tower passes through a grizzly (a stainless steel sieve) and falls on a conveyor. To facilitate repair works to be carried out to a grizzly bar, two metal rods were placed above the grizzly bar and this was covered by a tarpaulin sheet.Right below this arrangement welding of grizzly bar was carried out. When the welding process was being carried out heavy lumps of urea started falling down from the prill tower and fell on the iron plates placed over the grizzly bar. The iron plates along with heavy lumps of urea fell on the workers working right below the covered tarpaulin sheet and they sustained head Injuries and died.
Causes :
The temporary arrangements made above the grizzly bar to facilitate welding work was not of a strong and rigid construction to withstand falling of heavy lumps of urea from prill tower.

Ref:DGFASLI




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How the Apollo 1 Fire Changed Spaceship Design Forever

Interesting article on how designers learn from their mistakes.....after all they are also human.
How the Apollo 1 Fire Changed Spaceship Design Forever


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Accident and emergency | Chemistry World

Accident and emergency | Chemistry World

‘2015 should be remembered as a year when the chemical industry was sharply reminded of its social responsibility’



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Empty drums are deadly drums

Often empty drums are treated with much less safety precautions than filled drums. An empty drum that has not been purged free of residues chemicals is a potential bomb. Read about an incident from HSE UK, with a small film about the incident in this link.


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