Sharing our knowledge: Whitepapers At Nera, we believe that sharing our extensive knowledge on Zeology tanning contributes to a more sustainable leather value chain. Therefore, we are making make our insights, experience and knowledge of Zeology available through the University of Zeology. As we are continuously gaining more insights, we will be making new knowledge available regularly. Learn more about how you can contribute to a more sustainable leather value chain, by choosing zeolite-based tanning with Zeology. Dive in! How To Work With Zeology – FAQ We have gathered the frequently asked questions about How To Work With Zeology and answered them in one document. Free download. Read more Whitepaper: Biodegradability and disintegration of leather Download the Whitepaper 'Biodegradability and disintegration of leather'. Read more Whitepaper: Zeolite & metals When it comes to tanning, and possible undesirable side effects, media attention is mostly focussed on chrome tanning. What is metal tanning? Read more Want to learn more about Zeology? Check out all our university items