Removal of kathon by UV-C activated hydrogen peroxide: Kinetics,mechanisms, and enhanced biodegradability assessment

被引:0
|
作者
Jinzhi Cui [1 ]
Guiqiao Wang [1 ]
Xing Rong [1 ]
Wensu Gao [1 ]
Yaxin Lu [1 ]
Yawen Luo [1 ]
Lichao Zhang [1 ]
Zhongfa Cheng [2 ]
Canzhu Gao [1 ]
机构
[1] School of Environmental Science and Engineering, Shandong University
[2] Shandong Taihe Technologies Co., Ltd.
关键词
D O I
暂无
中图分类号
X703 [废水的处理与利用]; TQ085.4 [];
学科分类号
0817 ; 083002 ;
摘要
Kathon (CMI-MI),a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one (CMI) and 2-methyl-4-isothiazolin-3-one (MI),was extensively used in industry as a nonoxidizing biocide or disinfectant.However,it would show adverse effects on aquatic life when it is discharged into surface water.In this study,the removal performance,parameter influence,degradation products and enhancement of subsequent biodegradation of CMI-MI in UV/H2O2system were systematically investigated.The degradation rate of CMI-MI could reach 90% under UV irradiation for 20 min when the dosage of H2O2was 0.3 mmol·L–1.The DOC (dissolved organic carbon) mineralization rate of CMI-MI could reach 35%under certain conditions ([H2O2]=0.3 mmol·L–1,UV irradiation for 40 min).kobswas inversely proportional to the concentration of CMI-MI and proportional to the concentration of H2O2.The degradation rate of CMI-MI was almost unchanged in the pH range from 4 to 10.Except the presence of CO32-inhibited the removal rate of CMI-MI, SO42-,Cl-,NO3-, and NH4+did not interfere with the degradation of CMI-MI in the system.It was found that UV/H2O2system had lower energy consumption and more economic advantage compared with UV/PS system by comparing the EEO(electric energy per order) values under the same conditions.Two main organic products were identified,namely HCOOH and CH3NH2.There’s also the formation of Cl-and SO42-.After UV and UV/H2O2photolysis,the biochemical properties of CMI-MI solution were obviously improved,especially the UV/H2O2treatment effect was better,indicating that UV/H2O2technology is expected to combine with biotechnology to remove CMI-MI effectively and environmentally friendly from wastewater.
引用
收藏
页码:178 / 187
页数:10
相关论文
共 49 条
  • [31] Organic Arsenic Removal by Using Covalently Bonded Iron-Aluminum Loaded Activated Carbon: Synergistic Mechanisms of Enhanced Adsorption and in Situ Hydrogen Peroxide Oxidation
    Kong, Yanli
    Lu, Fan
    Huang, Aihua
    Chen, Zhonglin
    Ma, Jiangya
    ACS ES&T WATER, 2024, : 2981 - 2994
  • [32] Degradation of the flame retardant triphenyl phosphate by ferrous ion-activated hydrogen peroxide and persulfate: Kinetics, pathways, and mechanisms
    Song, Qingyun
    Feng, Yiping
    Liu, Guoguang
    Lv, Wenying
    CHEMICAL ENGINEERING JOURNAL, 2019, 361 : 929 - 936
  • [33] Kinetics of inactivation and photoreactivation of Escherichia coli using ultrasound-enhanced UV-C light-emitting diodes disinfection
    Zhou, Xiaoqin
    Li, Zifu
    Lan, Juanru
    Yan, Yichang
    Zhu, Nan
    ULTRASONICS SONOCHEMISTRY, 2017, 35 : 471 - 477
  • [34] EFFECT OF ENHANCED UV-C IRRADIATION ON THE GROWTH, MALONDIALDEHYDE, HYDROGEN PEROXIDE, FREE PROLINE, POLYAMINES, IAA AND IAA-OXIDASE ACTIVITY IN PEA PLANTS (PISUM SATIVUM L.)
    Katerova, Zornitsa
    Todorova, Dessislava
    COMPTES RENDUS DE L ACADEMIE BULGARE DES SCIENCES, 2011, 64 (11): : 1555 - 1562
  • [35] Does hydrogen peroxide really accelerate TiO2 UV-C photocatalyzed decolouration of azo-dyes such as Reactive Orange 16?
    Egerton, Terry A.
    Purnama, Herry
    DYES AND PIGMENTS, 2014, 101 : 280 - 285
  • [36] Effect of UV-C light or hydrogen peroxide wipes on the inactivation of methicillin-resistant Staphylococcus aureus, Clostridium difficile spores and norovirus surrogate
    Wallace, R. L.
    Ouellette, M.
    Jean, J.
    JOURNAL OF APPLIED MICROBIOLOGY, 2019, 127 (02) : 586 - 597
  • [37] Life Cycle Assessment of UV-C based treatment systems for the removal ofcompounds of emerging concern from urban wastewater br
    Notarnicola, Bruno
    Tassielli, Giuseppe
    Renzulli, Pietro Alexander
    Di Capua, Rosa
    Astuto, Francesco
    Mascolo, Giuseppe
    Murgolo, Sapia
    De Ceglie, Cristina
    Curri, Maria Lucia
    Comparelli, Roberto
    Dell'Edera, Massimo
    SCIENCE OF THE TOTAL ENVIRONMENT, 2023, 857
  • [38] Reevaluation of radical-induced differentiation in UV-based advanced oxidation processes (UV/hydrogen peroxide, UV/peroxydisulfate, and UV/ chlorine) for metronidazole removal: Kinetics, mechanism, toxicity variation, and DFT studies
    Wang, Jingquan
    Deng, Jing
    Du, Erdeng
    Guo, Hongguang
    SEPARATION AND PURIFICATION TECHNOLOGY, 2022, 301
  • [39] Efficient degradation of bisphenol A by the UV-enhanced nano zero-valent iron-activated hydrogen peroxide advanced oxidation system
    Yang, Siping
    Zhang, Xiaoqin
    Tang, Jia
    Zhang, Aiping
    JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 2022, 10 (06):
  • [40] Assessment of full-scale tertiary wastewater treatment by UV-C based-AOPs: Removal or persistence of antibiotics and antibiotic resistance genes?
    Rodriguez-Chueca, Jorge
    Varella della Giustina, Saulo
    Rocha, Jaqueline
    Fernandes, Telma
    Pablos, Cristina
    Encinas, Angel
    Barcelo, Damia
    Rodriguez-Mozaz, Sara
    Manaia, Celia M.
    Marugan, Javier
    SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 652 : 1051 - 1061