Safety measures for welding on concentrated sulfuric acid tanks,
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How can welding be carried out if the sulfuric acid in the concentrated sulfuric acid tank has not been emptied?
There should be no major issues with the concentrated sulfuric acid tank; the manhole is opened and nitrogen is injected to prevent hydrogen from accumulating in the internal space. The rest are external preparation tasks.
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It’s very dangerous if it isn’t emptied
Check the hydrogen level; if it’s within the acceptable limits, you can proceed with the work as long as you wear the appropriate personal protective equipment
Is it mainly about the location where the welding will take place? Is it below the water surface? If welding is carried out underwater, is there a possibility of leakage? It is safe if there is no possibility of leakage due to hot work; it depends on the location of the hot work and the maintenance plan. Hot work above the liquid surface must have its atmosphere replaced to meet the required standards.