Sludge pre-position treatment could be achieved by microorganism own metabolism and predation between microbial population as well as improvement of process and reactors.

The pure noun phrases discussed in this paper refer exclusively to those composed of nouns, or compounds functioning as nouns, or noun phrases consisting of pre-position attributes + head nouns.

Moscow came out the winner by far, reasserting its pre-eminent position in the Caspian.