ZERO-VALENT IRON/PERSULFATE (FE0/PS) OXIDATION ACETAMINOPHEN IN WATER

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DENG J.; SHAO Y.; GAO N.; DENG Y.; TAN C.; ZHOU S.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2014 | Volume:11 | Issue:4 Page(s): 881-890

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Title

ZERO-VALENT IRON/PERSULFATE (FE0/PS) OXIDATION ACETAMINOPHEN IN WATER

Author(s)

Keywords

AFFECTING FACTORS

SODIUM CITRATE

SULFATE RADICALS

TEMPERATURE

Abstract

Zero-valent iron (Fe0), as an alternative iron source, was evaluated to activate persulfate (PS) to degrade acetaminophen (APAP), a representative PHarmaceutically active compound in water. Effects of key factors in the so-called Fe0/PS process, including Fe0 dosage, initial PH, TEMPERATUREs and chelating agents, were studied. Under all the conditions tested, the APAP degradation followed a pseudo-first-order kinetics pattern. The degradation efficiency of APAP was highest when the Fe0 to PS molar ratio increased to 1:1, and the degradation rate constant and removal were 23.19×10-3 min-1 and 93.19%, respectively. Comparing with Fe2+, Fe0 served as an alternative iron source that can gradually release Fe2+ into water, thereby consistently activating PS to produce SULFATE RADICALS. The Fe0/PS system was effective in a broader PH range from 3 to 8.5. Heat could facilitate production of SULFATE RADICALS and enhance the APAP degradation in the Fe0/PS system. High reaction TEMPERATURE also improved the Fe2+/PS oxidation of APAP. Finally, SODIUM CITRATE (a chelating agent) at an appropriate concentration could improve the APAP degradation rate in the Fe2+/PS and Fe0/PS system. The optimal molar ratio of Fe0 to citrate depended on solution PH. Our results demonstrated that Fe0 was an alternative iron source to activate PS to degrade APAP in water.

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APA: Copy

DENG, J., SHAO, Y., GAO, N., DENG, Y., TAN, C., & ZHOU, S.. (2014). ZERO-VALENT IRON/PERSULFATE (FE0/PS) OXIDATION ACETAMINOPHEN IN WATER. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 11(4), 881-890. SID. https://sid.ir/paper/285559/en

Vancouver: Copy

DENG J., SHAO Y., GAO N., DENG Y., TAN C., ZHOU S.. ZERO-VALENT IRON/PERSULFATE (FE0/PS) OXIDATION ACETAMINOPHEN IN WATER. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2014;11(4):881-890. Available from: https://sid.ir/paper/285559/en

IEEE: Copy

J. DENG, Y. SHAO, N. GAO, Y. DENG, C. TAN, and S. ZHOU, “ZERO-VALENT IRON/PERSULFATE (FE0/PS) OXIDATION ACETAMINOPHEN IN WATER,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 11, no. 4, pp. 881–890, 2014, [Online]. Available: https://sid.ir/paper/285559/en

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