thanksThis was the thread but I’m not sure how to put a link to it. @Whynot may be able answer your questions.
Ammonium Sulphate liquid spreading help
Ask a silly question: Why don't these scrubbers re-condense the water vapour coming out of the dryer and put you back to square one? What's the acid consumption at those sort of air vols?If you have ammonia coming out in your drying air then an air scrubber running with sulphuric acid in the water will definitely clean that right up. Solution in the scrubber will gradually turn to ammonium sulphate, quite a useful fertiliser solution. If anyone is interested in this I have some pretty large second hand scrubbers capable of dealing with 10,000 and 20,000 cubic feet per minute of air available. These could be very expensive items if you bought them new!
They can and often do re condense the water in the dryer exhaust air stream. All depends on just how warm the exhaust air is and just how saturated it is. If its very warm and high humidity then the washing action of the scrubber will cool it and condense. The exhaust from the scrubber will be high humidity, but cooler air so will carry less water overall. So it can end up that the scrubber actually "makes" water and fills up, equally it can happen that the exhaust from the scrubber will carry more water than was going in and it needs topping up with water. if there is too much re condensing going on then it can pay to warm the scrubber water a bit, so it doesnt cool the air so much.Ask a silly question: Why don't these scrubbers re-condense the water vapour coming out of the dryer and put you back to square one? What's the acid consumption at those sort of air vols?