"Oxidizing agents" . "Chemical properties" . "Electromagnetic spectrum" . "Polyethers" . "Water treatment" . "Environmental chemistry" . "Scientific terminology" . "Potassium compounds" . "Phenol ethers" . "Environmental engineering" . "Solutions" . "Non-ionic surfactants" . "Radical initiators" . "Chemical reactions" . "Electromagnetic radiation" . "Ultraviolet radiation" . "Green chemistry" . "Persulfates" .