For safety reasons, I always do this for lava trash cans : r/Minecraft
REDSTONE TRASH CHEST v2.0 - A Better Way to Dispose of Your Minecraft Garbage! - YouTube
REDSTONE TRASH CHEST v2.0 - A Better Way to Dispose of Your Minecraft Garbage! - YouTube
Auto trash can | Minecraft Amino
Amazon.com: Kitchen Trash Can with Lid, 13 Gallon Automatic Garbage Can for Bathroom Bedroom Home Office 50 Liter Touch Free High-Capacity Brushed Stainless Steel Waste Bin : Home & Kitchen