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.
Typically, chemical engineers: 1  Optimize the economics and energy efficiency of chemical processes in the petroleum and specialty chemicals industries. 2  Develop, design, and implement safe, economical, and environmentally friendly chemical processes.  Design and operate processes to meet environmental regulations.