التفاصيل البيبلوغرافية
| العنوان: |
Degradation of Rhodamine B in Wastewater by Zero-valent Cobalt Activated Peroxymonosulfate. (English) |
| المؤلفون: |
ZHANG Linyue, ZHOU Gaofeng, LIU Yiqing, FU Yongsheng |
| المصدر: |
Environmental Science & Technology (10036504); 2022, Vol. 45 Issue 1, p101-107, 7p |
| مصطلحات موضوعية: |
RHODAMINE B, PEROXYMONOSULFATE, SEWAGE, HYDROXYL group |
| مستخلص: |
This paper is intended to introduce a method of using zero-valent cobalt (ZVCo) activated peroxymonosulfate (PMS) to degrade rhodamine B (RhB) in wastewater. Thereby a laboratory experiment was conducted for investigating the effects of parameters of initial pH, ZVCo dosages, PMS, and common inorganic anions (Cl-, SO42-, NO3- and HCO3-, and natural organic matter (NOM)) on the ZVCo/PMS process, and the mechanism of RhB degradation during ZVCo/PMS process was explored. The experiment showed that the degradation efficiency of RhB attained the top value at pH 7, up to as high as 98.5% within 6 min; it was found the presence of Cl- could slightly inhibit the degradation of RhB, while an obvious inhibition occurred with the addition of HCO3- and NOM; and SO42- and NO3- almost did not affect degradation of RhB. Besides, the radical quenching testing suggested that both hydroxyl radical (HO·) and sulfate radical (SO4·-) were involved in the degradation of RhB and SO4·- was the dominant reactive species in this system. ZVCo has an excellent feature of stability and reusability, and the degradation efficiency of RhB by ZVCo/PMS could be maintained at 98.4% for four times. [ABSTRACT FROM AUTHOR] |
|
Copyright of Environmental Science & Technology (10036504) is the property of Editorial Board of Environmental Science & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
