A steam generation system comprises: an oxygenated water treatment (OWT) sub-system configured to generate water having oxidizing chemistry； a steam generation sub-system configured to convert the water having oxidizing chemistry into steam having oxidizing chemistry； an attemperator or other injection device or devices configured to add an oxygen scavenger to the steam having oxidizing chemistry to generate steam having less oxidizing or reducing chemistry； and a condenser configured to condense the steam having less oxidizing or reducing chemistry into condensed water.
