The second request from our client was a supply of scrubber able to reduce the nitric acid gases (VIC) emitted during the polishing procedures of stainless steel slabs. This procedure is carried out in containment booths through the use of machines that polish the slabs with an acidic solution with nitric acid at 3÷4%.
Even in this case, Tecnosida® has designed a wet system to reduce the concentration of gases with only one scrubber. In particular, the gas flow is carried inside the scrubber thanks to the stainless steel 316 pipes provided by us, in order to be treated in the scrubber. This one has been designed to reduce the concentration of acidic substances and, therefore, it has a tank for the base reagent. As we have seen in the previous cases, a dosing system allow the water pH to be tested and the base reagent to be added when needed in order to rebalance the liquid values. The water storage and recirculation tank has an automated drain valve to change the liquid once exhausted.
In this product, the conveying pipes have been made with stainless steel 316 to overcome the acids in the flow. On the other hand, the electric panel has an inverter in order to adjust the aspiration system to the real operational needs, thus energetic waste can be avoided.