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.
The average salary for a Chemical Engineer is R293,444 per year. Pay for this job rises steadily for more experienced workers, but goes down noticeably for the few employees with more than 20 years' experience. People in this job generally don't have more than 10 years' experience.