What is zkEVM validium?

Could you please clarify what zkEVM validium entails? Is it a new technology or a concept within the cryptocurrency and blockchain realm? How does it differ from traditional EVMs, and what unique advantages does it offer? Also, how does it ensure security and privacy, and are there any notable projects or use cases leveraging zkEVM validium technology? I'm eager to understand the fundamentals and potential implications of this emerging technology.