1
|
Wu X, Lin Q, Belwal T, Huang H, Zou L, Lv W, Luo Z. Effect of advanced/hybrid oxidation process involving ultrasonication and ultraviolet radiation ( sonophotolysis) on anthocyanin stability: Degradation kinetics and mechanism. Food Chem 2022; 370:131083. [PMID: 34600395 DOI: 10.1016/j.foodchem.2021.131083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/26/2021] [Accepted: 09/06/2021] [Indexed: 12/17/2022]
Abstract
The hybrid oxidation effect of ultrasonics (US) and ultraviolet light (UV-A) on Cyanidin-3-O-glucoside (C3G) stability were examined. For comparison, sonolysis and photolysis experiments were also conducted. The results showed that under hybrid sonophotolysis and sonolysis treatment, C3G degradation undergoes zero-order kinetics, while under photolysis, first-order degradation kinetic prevailed. The degradation rate increases with the increase in US power, with the lowest, was recorded as 0.70 μg/ml/h (14 W/L) and 0.77 μg/ml/h (28 W/L), and highest as 0.80 μg/ml/h (42 W/L). Similarly, the degradation ability of UV photolysis at 400 μW/cm2 was weak, which increased with increasing UV power (600 μW/cm2). Overall the sonophotolysis degradation rate was significantly higher than that of the individual effect. With the addition of gallic acid (GA), the degradation of C3G was found lower under sonophotolysis; thus, it could be used as a natural protective agent for C3G during food processing.
Collapse
Affiliation(s)
- Xiaohan Wu
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang R&D Center for Food Technology and Equipment, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China
| | - Qianwei Lin
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang R&D Center for Food Technology and Equipment, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China
| | - Tarun Belwal
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang R&D Center for Food Technology and Equipment, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China.
| | - Hao Huang
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang R&D Center for Food Technology and Equipment, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China
| | - Ligen Zou
- Hangzhou Academy of Agricultural Sciences, Hangzhou 310024, People's Republic of China
| | - Weide Lv
- Hangzhou Vocational & Technical College, Hangzhou 310018, People's Republic of China
| | - Zisheng Luo
- Zhejiang University, College of Biosystems Engineering and Food Science, Key Laboratory of Agro-Products Postharvest Handling of Ministry of Agriculture and Rural Affairs, Zhejiang R&D Center for Food Technology and Equipment, National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Yuhangtang Road 866, Hangzhou 310058, People's Republic of China; Fuli Institute of Food Science, Hangzhou 310058, People's Republic of China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, People's Republic of China.
| |
Collapse
|
2
|
Rao Y, Yang H, Xue D, Guo Y, Qi F, Ma J. Sonolytic and sonophotolytic degradation of Carbamazepine: Kinetic and mechanisms. Ultrason Sonochem 2016; 32:371-379. [PMID: 27150783 DOI: 10.1016/j.ultsonch.2016.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 04/03/2016] [Accepted: 04/04/2016] [Indexed: 05/09/2023]
Abstract
An in-depth investigation on the ultrasonic decomposition of Carbamazepine (CBZ), one of the most regularly identified drugs in the environment, was conducted. The effects of diverse variables were evaluated, such as frequency, power, solution pH, initial CBZ concentration and varied inorganic anions. Reaction order was determined on the basis of analyzing reaction kinetics of CBZ degradation. The sonophotolysis and photolysis of CBZ was also examined in this contribution. The influence of water composition on the sonolytic and sonophotolytic elimination of CBZ was analyzed. Additionally, 21 intermediates were identified during sonolytic degradation of CBZ based on LC/ESI-MS/MS analysis, among which two escaped from the detection in previous studies. Possible decay pathways were proposed accordingly. The epoxidation, cleavage of double bond, hydration, hydroxylation, ring contraction and intramolecular cyclization were believed to be involved in sonochemical degradation of CBZ.
Collapse
Affiliation(s)
- Yongfang Rao
- Department of Environmental Science and Engineering, Xi' an Jiaotong University, Xi'an 710049, PR China.
| | - Haisong Yang
- Department of Environmental Science and Engineering, Xi' an Jiaotong University, Xi'an 710049, PR China
| | - Dan Xue
- Department of Environmental Science and Engineering, Xi' an Jiaotong University, Xi'an 710049, PR China
| | - Yang Guo
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, PR China
| | - Fei Qi
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, PR China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| |
Collapse
|
3
|
Xu LJ, Chu W, Lee PH, Wang J. The mechanism study of efficient degradation of hydrophobic nonylphenol in solution by a chemical-free technology of sonophotolysis. J Hazard Mater 2016; 308:386-393. [PMID: 26855185 DOI: 10.1016/j.jhazmat.2016.01.075] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/21/2016] [Accepted: 01/28/2016] [Indexed: 06/05/2023]
Abstract
Nonylphenol is a hydrophobic endocrine disrupting compound, which can inhibit the growth of sewage bacteria in biological processes. This study investigated the degradation of 4-n-nonylphenol (NP) in water by a chemical-free technology of sonophotolysis with emphasis on the impacts of several important parameters, including light intensity, solution pH, two commonly seen inorganic ions (i.e. NO3(-) and HCO3(-)), and principally on the examination of degradation mechanisms. It was found that, solution pH could significantly influence both NP degradation efficiency and the synergistic effect of sonophotolytic process, where higher synergistic effect was obtained at more acidic condition. In addition, the presence of NO3(-) accelerated NP degradation by both acting as a photosensitizer and providing NO2˙ radicals, while HCO3(-) had little effect on NP degradation. Identification of intermediates of NP degradation indicated that NP sonophotolysis was mainly initiated by the formation of hydroxy-NP, and a new intermediate di-hydroxy-NP was identified for the first time ever in this study. Through thermodynamic analysis, results indicated that both ortho- and meta-hydroxy-NP species can coexist in the solution but the ortho-4-NBZQ (4-nonyl-benzoquinone) is dominant. In addition, the mechanism of ortho-hydroxy-NP formation was suggested by the addition of HO˙ and H˙ radicals.
Collapse
Affiliation(s)
- L J Xu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - W Chu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
| | - Po-Heng Lee
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Jian Wang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| |
Collapse
|
4
|
Ghafoori S, Mowla A, Jahani R, Mehrvar M, Chan PK. Sonophotolytic degradation of synthetic pharmaceutical wastewater: statistical experimental design and modeling. J Environ Manage 2015; 150:128-137. [PMID: 25460426 DOI: 10.1016/j.jenvman.2014.11.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/07/2014] [Accepted: 11/11/2014] [Indexed: 06/04/2023]
Abstract
The merits of the sonophotolysis as a combination of sonolysis (US) and photolysis (UV/H2O2) are investigated in a pilot-scale external loop airlift sonophotoreactor for the treatment of a synthetic pharmaceutical wastewater (SPWW). In the first part of this study, the multivariate experimental design is carried out using Box-Behnken design (BBD). The effluent is characterized by the total organic carbon (TOC) percent removal as a surrogate parameter. The results indicate that the response of the TOC percent removal is significantly affected by the synergistic effects of the linear term of H2O2 dosage and ultrasound power with the antagonistic effect of quadratic term of H2O2 dosage. The statistical analysis of the results indicates a satisfactory prediction of the system behavior by the developed model. In the second part of this study, a novel rigorous mathematical model for the sonophotolytic process is developed to predict the TOC percent removal as a function of time. The mathematical model is based on extensively accepted sonophotochemical reactions and the rate constants in advanced oxidation processes. A good agreement between the model predictions and experimental data indicates that the proposed model could successfully describe the sonophotolysis of the pharmaceutical wastewater.
Collapse
Affiliation(s)
- Samira Ghafoori
- Department of Chemical Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3
| | - Amir Mowla
- Department of Chemical Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3
| | - Ramtin Jahani
- Department of Chemical Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3
| | - Mehrab Mehrvar
- Department of Chemical Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3.
| | - Philip K Chan
- Department of Chemical Engineering, Ryerson University, 350 Victoria St., Toronto, Ontario, Canada M5B 2K3
| |
Collapse
|
5
|
Park B, Cho E, Son Y, Khim J. Distribution of electrical energy consumption for the efficient degradation control of THMs mixture in sonophotolytic process. Ultrason Sonochem 2014; 21:1982-1987. [PMID: 24798228 DOI: 10.1016/j.ultsonch.2014.03.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Revised: 03/10/2014] [Accepted: 03/31/2014] [Indexed: 06/03/2023]
Abstract
Sonophotolytic degradation of THMs mixture with different electrical energy ratio was carried out for efficient design of process. The total consumed electrical energy was fixed around 50W, and five different energy conditions were applied. The maximum degradation rate showed in conditions of US:UV=1:3 and US:UV=0:4. This is because the photolytic degradation of bromate compounds is dominant degradation mechanism for THMs removal. However, the fastest degradation of total organic carbon was observed in a condition of US:UV=1:3. Because hydrogen peroxide generated by sonication was effectively dissociated to hydroxyl radicals by ultraviolet, the concentration of hydroxyl radical was maintained high. This mechanism provided additional degradation of organics. This result was supported by comparison between the concentration of hydrogen peroxide sole and combined process. Consequently, the optimal energy ratio was US:UV=1:3 for degradation of THMs in sonophotolytic process.
Collapse
Affiliation(s)
- Beomguk Park
- School of Civil, Environmental and Architectural Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea
| | - Eunju Cho
- School of Civil, Environmental and Architectural Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea
| | - Younggyu Son
- Department of Environmental Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyungbuk 730-701, Republic of Korea
| | - Jeehyeong Khim
- School of Civil, Environmental and Architectural Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea.
| |
Collapse
|