Question

suggest another possible solution to the problem of dealing with the waste acid and discuss some possible advantages and disadvantages of your proposed solution.

plz write alot of creactive possible solution

thx:)

aiuabIe product but also makes hydrochloric a waste byproduct. (You may recall that HCI dissociates into a hydrogen ior loride ion, CI, and reacts with many other substances.) Imagine further tha ceived the following memo from your supervisor: ABC Chemical Company Memorandum From: Barbara Magelby, Supervisor, Chemical Process Group To: <your name> We've just received information indicating that the company that has been disposing of our HCI byproduct is not doing well. We anticipate that they will be going out of business in 6-12 months. This puts us in a very dangerous situation, since we can't operate very long without disposing of that waste. Our marketing people have tried to find a potential buyer for the acid, but the byproduct is apparently not at an appropriate concentration or purity to be valuable to anyone in our local area. One possibility to consider is treatment of the waste in order to be able to dispose of it in the lake next to our company site. However, at this point, no engineering analysis has been conducted on this or any other strategy Your assignment is to propose a strategy and design (with a cost analysis) for safely and legally disposing of the acid waste. Please keep me informed of your progress.

Answer 1

Possible solutions:

a) Treat the HCl with NaOH to neutralise it and form NaCl which is not as dangerous as HCl and will not affect the pH of the soil nearby

Adv: NaCl can be used as commercial product for sale. This can also be washed with lot of water and disposed to lakes

Disadv: Additional cost can be incurred in buying NaOH, disposing NaCl if not required and also setting up the process of neutralisation itself

b) Cleanup the HCl and increase its purity and sell it as a commercial product

Adv: brings additional sales to the company

Disadv: Requires new process installation

c) Produce Cl and Hydrogen gas by electrolysis process

Adv: Additional sale from selling these gases

Disadv: have to setup a new electrolytic unit, handling of gases are much more tedious