A sulfuric acid manufacturing plant operates such that 50 US short tons of acid are produced with an estimated emission of 60 lb of acid mist. Based on emission standards for new sources, should control equipment be considered and, if so, what percent removal efficiency is required of the control equipment?

A cooling tower works with the amount of cooling water 1 ton/hour. Conditions of cooling water in the cooling tower has a solid content of 1350 ppm. The cooling water entering the cooling tower is processed in such a way that the solids content is a maximum of 225 ppm. If the cooling water evaporated rate is assumed to be 2.5% the cooling water inlet rate, calculate the concentration cycle, the added water rate, and the blowdown water rate!

please answer number 09 please

The feed stream to a distillation column contains 30 % propane, 50 % butane and 20 % pentane. The overhead tops product concentrate contains 80 % propane and 15 % butane, and the bottoms product contains 2 % propane. Determine the following: a) The yield (%) of overhead product per unit of feed. b) The concentration of butane and pentane in the bottoms product stream. c) The recovery (%) of propane from the feed into the overhead product (i.e. what fraction of propane in the feed stream exits in the overhead product). d) The recovery (%) of pentane from the feed into the bottoms product.