Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Pollution Control regulations and Measures in Sulfuric Acid Anodizing
Q. I want to know the pollution control regulations for sulfuric acid hard anodizing and what preventive measures are needed
Dipesh PatelHard Anodizing - Pardi, Gujarat, India
2004
A. Hi Dipesh !
Firstly, the air mgt standards for pollution control will surely VARY ... they vary sometimes in Canada from Province to Province and I'd imagine that India would certainly follow suit ... but yours are probably not nearly as onerous as the U.S. EPA specs. Check with your local authorities. OK?
The first prime requisite is good ventilation, i.e., a well designed ventilation system starting with the hood. The second one deals with air pollution ... and I'd suggest that you use a good 10 micron(capture) blade type horizontal mist eliminator. Don't use stainless. Use PVC. Don't waste your money on expensive mass transfer scrubbers.
Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).
2004
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