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 at pharmaceutical manufacturers have the same duties as those of consumer goods manufacturers, but they have additional duties as well. Their focus is on developing new drugs or products to enhance the health of humans and animals.
Chemical engineers can change the world. Chemical engineers work to improve the quality of people's lives. Most items used by people everyday have needed chemical engineers to produce them. Chemical engineers are helping to end starvation, disease and poverty. They are working to save the environment by developing alternative technologies to combat acid rain, lead pollution and the greenhouse effect.