Can I read Persulfate oxidation for in situ remediation of TCE. I. Activated by ferrous ion with and without a persulfate–thiosulfate redox couple on EtoBox?
Persulfate oxidation for in situ remediation of TCE. I. Activated by ferrous ion with and without a persulfate–thiosulfate redox couple by Chenju Liang; Clifford J. Bruell; Michael C. Marley; Kenneth L. Sperry is a Environmental Science article available to read on EtoBox.
What is Persulfate oxidation for in situ remediation of TCE. I. Activated by ferrous ion with and without a persulfate–thiosulfate redox couple about?
The objective of the laboratory study is to examine the conditions under which transition metal ions (e.g., ferrous ion, Fe2+) could activate the persulfate anion (S2O8 2−) to produce a powerful oxidant known as the sulfate free radical (SO4 − ) with a standard redox potential of 2.6 V. The SO4 − is capable of destroying groundwater contaminants in situ such as trichloroethylene (TCE). Experiments using Fe2+ as an activator under various molar ratios of S2O8 2−/Fe2+/TCE in an aqueous system indicated that partial TCE degradation occurred almost instantaneously and then the reaction stalled. Either destruction of SO4 − in the presence of excess Fe2+ or the rapid conversion of all Fe2+ to Fe3+ limited the ultimate oxidizing capability of the system. Sequential addition of Fe2+ in small increments resulted in an increased TCE removal efficiency. Therefore, it appeared that Fe2+ played an important role in generating SO4 − . An observation of oxidation–reduction potential (ORP) variations revealed that the addition of sodium thiosulfate (Na2S2O3) to the ferrous ion activated persulfate system could significantly decrease the strong oxidizing conditions. It was hypothesized that the thi
Who reads Persulfate oxidation for in situ remediation of TCE. I. Activated by ferrous ion with and without a persulfate–thiosulfate redox couple?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Chenju Liang; Clifford J. Bruell; Michael C. Marley; Kenneth L. Sperry
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0045-6535)
- Published
- 2004
- Language
- EN
- Field
- Environmental Science (Physical Sciences)