bottle collection vs recycling

bottle collection and recycling both are nouns.

Word	Noun	Adjective	Verb	Adverb
bottle collection	Yes	No	No	No
recycling	Yes	No	No	No

As nouns, recycling is a hypernym of bottle collection; that is, recycling is a word with a broader meaning than bottle collection:

bottle collection: collecting bottles for reuse
recycling: the act of processing used or abandoned materials for use in creating new products

bottle collection (noun)	recycling (noun)
the activity of collecting bottles	the act of processing used or abandoned materials for use in creating new products
collecting bottles for reuse	used or abandoned materials for use in creating new products
a collection of bottles