What benefits does a landfill have over trash burning? Here in Switzerland most non recyclable trash is burned in special clean burning power plants to produce

What benefits does a landfill have over trash burning? Here in Switzerland most non recyclable trash is burned in special clean burning power plants to produce heat for most of the cities. 1 Bag of trash is the equivalent of 1,7 Liter of heating oil. [1] https://www.stadt-zuerich.ch/ted/de/index/entsorgung_recycling/zuerich_waerme/produktionsanlagen/kehrichtheizkraftwerk/thermische_verwertung.html https://www.stadt-zuerich.ch/ted/de/index/entsorgung_recycli... (German)