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.
A variety of industries employ chemical engineers, representing a diverse range of products, employers, and services. Chemical Process Industries. The focus of companies in this industry is on the development, extraction, isolation, combination, and use of chemicals and chemical by-products. Chemical engineers design and operate processes and systems to combine, transport, separate, handle, recycle, and store them.