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 Engineer Salaries. Chemical engineers also earn a comfortable living. According to the BLS, chemical engineers garnered a median salary of $94,350 in 2012. The top 10 percent of chemical engineers took in more than $154,840, while the bottom 10 percent earned $58,830 or less.