Assertion: seawater | /r/HasProperty | heated in a series of stages
Facets:
value: gradually
type: MANNER
value: in the plants
type: LOCATION
Source sentences:
text: After deaeration, the seawater is fed through tubing in the heat recovery section, where it is gradually heated in a series of stages to either 180 F (82 C) in the plants using polyphosphates or 220 to 230 F (104 to 110 C) in the plants using acid or chemical additives.