Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal
Nano zero-valent metal were prepared to activate hydrogen peroxide (HP) and persulfate (PS) for efficient degradation of hydroxypropyl guar gum (HPG) in oilfield water to avoid secondary contamination caused by transition metal ions in the homogeneous reaction. The effects of H2O2/Na2S2O8 concentrat...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Desalination and Water Treatment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1944398624000614 |
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| author | Meiyu Dong Yifan Liu Rui Zhou Yi Yang Ying Tang |
| author_facet | Meiyu Dong Yifan Liu Rui Zhou Yi Yang Ying Tang |
| author_sort | Meiyu Dong |
| collection | DOAJ |
| description | Nano zero-valent metal were prepared to activate hydrogen peroxide (HP) and persulfate (PS) for efficient degradation of hydroxypropyl guar gum (HPG) in oilfield water to avoid secondary contamination caused by transition metal ions in the homogeneous reaction. The effects of H2O2/Na2S2O8 concentration, catalyst concentration, temperature and pH on the degradation rate of HPG were comprehensively evaluated in this study. It was found that Cu0 coupled with HP or PS provided an effective treatment pathway which was based on rapid Cu0-mediated decomposition of the oxidants, resulting in complete removals by decreasing the (chemical oxygen demand) COD from 7350 mg/L to 360 mg/L, in particular when PS was employed as the oxidant. The HPG degradation rate was 81% at 45 ℃, pH 7, oxidant ratio of 2:3 (H2O2:Na2S2O8), total oxidant dosage of 10% and Cu0 dosage of 0.3 g/L. The results of this study demonstrated that the combined degradation of HPG pollutants by Cu0-activated H2O2/Na2S2O8 has a wide range of applications which provides new strategies and mechanism insights for advanced oxidation of oilfield pollutants. |
| format | Article |
| id | doaj-art-b99396767d4248ea8d159d7429b502e2 |
| institution | OA Journals |
| issn | 1944-3986 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Desalination and Water Treatment |
| spelling | doaj-art-b99396767d4248ea8d159d7429b502e22025-08-20T02:01:14ZengElsevierDesalination and Water Treatment1944-39862024-01-0131710004710.1016/j.dwt.2024.100047Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metalMeiyu Dong0Yifan Liu1Rui Zhou2Yi Yang3Ying Tang4Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, China; Engineering Research Center of Oil and Gas Field Chemistry, Universities of Shaanxi Provence, Xi’an Shiyou University, Xi’an, China; Corresponding authors at: Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, ChinaShaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, China; Corresponding author.Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, ChinaXi'an Shiyou Dajiarun Industrial Co., Ltd, Xi’an, ChinaShaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, China; Engineering Research Center of Oil and Gas Field Chemistry, Universities of Shaanxi Provence, Xi’an Shiyou University, Xi’an, China; Corresponding authors at: Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, ChinaNano zero-valent metal were prepared to activate hydrogen peroxide (HP) and persulfate (PS) for efficient degradation of hydroxypropyl guar gum (HPG) in oilfield water to avoid secondary contamination caused by transition metal ions in the homogeneous reaction. The effects of H2O2/Na2S2O8 concentration, catalyst concentration, temperature and pH on the degradation rate of HPG were comprehensively evaluated in this study. It was found that Cu0 coupled with HP or PS provided an effective treatment pathway which was based on rapid Cu0-mediated decomposition of the oxidants, resulting in complete removals by decreasing the (chemical oxygen demand) COD from 7350 mg/L to 360 mg/L, in particular when PS was employed as the oxidant. The HPG degradation rate was 81% at 45 ℃, pH 7, oxidant ratio of 2:3 (H2O2:Na2S2O8), total oxidant dosage of 10% and Cu0 dosage of 0.3 g/L. The results of this study demonstrated that the combined degradation of HPG pollutants by Cu0-activated H2O2/Na2S2O8 has a wide range of applications which provides new strategies and mechanism insights for advanced oxidation of oilfield pollutants.http://www.sciencedirect.com/science/article/pii/S1944398624000614Persulfate-hydrogen peroxideAdvanced oxidation hydroxypropyl guar gumZero-valent copper |
| spellingShingle | Meiyu Dong Yifan Liu Rui Zhou Yi Yang Ying Tang Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal Desalination and Water Treatment Persulfate-hydrogen peroxide Advanced oxidation hydroxypropyl guar gum Zero-valent copper |
| title | Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal |
| title_full | Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal |
| title_fullStr | Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal |
| title_full_unstemmed | Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal |
| title_short | Degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero-valent metal |
| title_sort | degradation of oil filed pollutants by hydrogen peroxide and persulfate activated over zero valent metal |
| topic | Persulfate-hydrogen peroxide Advanced oxidation hydroxypropyl guar gum Zero-valent copper |
| url | http://www.sciencedirect.com/science/article/pii/S1944398624000614 |
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