In many cases non-zinc anodes outperform actual zinc anodes, depending upon the type of metal you need to protect and the nature of the water in which the metal being protected is immersed. It all has to do with the voltage of the anode when referenced against a standard.
Chemical engineers use their knowledge of chemistry, physics, engineering and biology to find solutions to challenges involving things like materials manufacturing and food processing.
Chemical engineers have the opportunity to enjoy a diverse career, and there are a range of different jobs from which to choose. You can work in a laboratory, in an office, in the outdoors or on an industrial plant, or combination of all of these in the one job.