Removal, Elimination
Noun, する verb, and の adjective
はいじょ
各下水道施設は、下水排除規準を満たす必要があります。
Each sewage facility needs to meet sewage removal standards.
If you reject and exclude something, you are doing exclusion to it. You could also call this removal.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.