Activated Persulfate In-Situ Chemical Oxidation (ISCO)
ISOTEC's persulfate technology uses sodium persulfate catalyzed by our patented modified Fenton's reagent, alkaline reagents (including sodium hydroxide and lime), hydrogen peroxide or our patented chelated iron complex to produce sulfate free radicals that attack contaminants. Persulfate when used as an in-situ chemical oxidation reagent is particularly effective at treating contaminants from aromatics like benzene, toluene, ethylbenzene, xylenes; and chlorinated solvents such as perchloroethene (PCE) and trichloroethene (TCE). ISOTEC uses both injection and soil mixing methods to deliver reagent for environmental remediation.
ISOTEC`s persulfate reagents are designed for both...
ISOTEC's persulfate reagents are designed for both solo use or in combination with other ISOTECSM reagents (e.g. modified Fenton's reagent, permanganate reagent). The reaction mechanism associated with our persulfate-based process is shown below:
S2O82- 
2SO4•-
Where:
S2O82- = Persulfate (Sodium, Ammonium or Potassium)
SO4•- = Sulfate free radical
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