Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway

Song，Wei1; Li，Ji1; Wang，Zhuoyue1; Fu，Caixia2,3; Zhang，Xiaolei1; Feng，Jianpei1; Xu，Zhiliang1; Song，Qi4

2020-01-10

10.1016/j.scitotenv.2019.134258

SCIENCE OF THE TOTAL ENVIRONMENT   影响因子和分区

0048-9697

1879-1026

The degradation efficiency of bisphenol A (BPA) was investigated in the process of persulfate (PS) coupled with dithionite (DTN) as a function of concentration of BPA, PS, DTN and solution pH. A simple response surface methodology (RSM) based on central composite design (CCD) was employed to determine the influence of individual and interaction of above variables and the optimum processing parameters. It is satisfactory of a quadratic model with low probabilities (<0.0001) at a confidence level of 95% to predict the BPA degradation efficiency. The model was well fitted to the actual data and the correlation coefficients of R and R-adj were 0.9270 and 0.8885, respectively. In addition, the obtained optimum conditions for BPA degradation were 1.79 μM, 131.77 μM, 93.64 μM for BPA, PS, DTN and pH = 3.62, respectively. It achieved a degradation efficiency >90% within 150 min. Moreover, the trapping experiment of active species demonstrated that SO and ·OH were the dominant species and natural water matrix showed an obvious inhibition effect on BPA degradation. The BPA degradation pathway was predicted based on GC-MS results in this study.

Bisphenol A Central composite design Degradation pathway Dithionite Persulfate Response surface methodology

SCI ; EI

英语

其他

Shenzhen Demonstration Project[KJYY20171012140149523]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000500583400040

ELSEVIER

20193807442850

Degradation ; Efficiency ; Phenols

Chemical Reactions:802.2 ; Organic Compounds:804.1 ; Production Engineering:913.1 ; Materials Science:951

ENVIRONMENT/ECOLOGY

2-s2.0-85072204684

Scopus

1.School of Civil and Environmental EngineeringShenzhen Key Laboratory of Water Resource Application and Environmental Pollution ControlHarbin Institute of TechnologyShenzhen,Shenzhen,518055,China
2.School of Environmental Science and EngineeringSouthern University of Science and Technology,Shenzhen,518055,China
3.Shenzhen Key Laboratory of Soil and Groundwater Pollution ControlGuangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control,Shenzhen,518055,China
4.China Meheco Topfond Pharmaceutical Co.Ltd,Zhumadian,463000,China

Song，Wei,Li，Ji,Wang，Zhuoyue,et al. Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,699.

Song，Wei.,Li，Ji.,Wang，Zhuoyue.,Fu，Caixia.,Zhang，Xiaolei.,...&Song，Qi.(2020).Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway.SCIENCE OF THE TOTAL ENVIRONMENT,699.

Song，Wei,et al."Degradation of bisphenol A by persulfate coupled with dithionite: Optimization using response surface methodology and pathway".SCIENCE OF THE TOTAL ENVIRONMENT 699(2020).