Please wait a minute...

Frontiers of Environmental Science & Engineering

Front. Environ. Sci. Eng.    2018, Vol. 12 Issue (3) : 12     https://doi.org/10.1007/s11783-018-1030-2
RESEARCH ARTICLE |
Oxidation and biotoxicity assessment of microcystin-LR using different AOPs based on UV, O3 and H2O2
Siyi Lu, Naiyu Wang, Can Wang()
School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
Download: PDF(344 KB)   HTML
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract

MC-LR removal performances under different AOPs were compared systematically.

Higher removal efficiency and synergistic effects were obtained by combined process.

The acute biotoxicity raised in different degrees after oxidation.

Microcystin-LR attracts attention due to its high toxicity, high concentration and high frequency. The removal characteristics of UV/H2O2 and O3/H2O2 advanced oxidation processes and their individual process for MC-LR were investigated and compared in this study. Both the removal efficiencies and rates of MC-LR as well as the biotoxicity of degradation products was analyzed. Results showed that the UV/H2O2 process and O3/H2O2 were effective methods to remove MC-LR from water, and they two performed better than UV-, O3-, H2O2-alone processes under the same conditions. The effects of UV intensity, H2O2 concentration and O3 concentration on the removal performance were explored. The synergistic effects between UV and H2O2, O3 and H2O2 were observed. UV dosage of 1800 mJ·cm2 was required to remove 90% of 100 mg·L1 MC-LR, which amount significantly decreased to 500 mJ·cm2 when 1.7 mg·L1 H2O2 was added. 0.25 mg·L1 O3, or 0.125 mg·L1 O3 with 1.7 mg·L1 H2O2 was needed to reach 90% removal efficiency. Furthermore, the biotoxicity results about these UV/H2O2, O3/H2O2 and O3-alone processes all present rising trends with oxidation degree of MC-LR. Biotoxicity of solution, equivalent to 0.01 mg·L1 Zn2+, raised to 0.05 mg·L1 Zn2+ after UV/H2O2 or O3/H2O2 reaction. This phenomenon may be attributed to the aldehydes and ketones with small molecular weight generated during reaction. Advice about the selection of MC-LR removal methods in real cases was provided.

Keywords Microcystin-LR      Advanced oxidation processes (AOPs)      Biotoxicity      Synergistic effects     
Corresponding Authors: Can Wang   
Issue Date: 21 March 2018
 Cite this article:   
Siyi Lu,Naiyu Wang,Can Wang. Oxidation and biotoxicity assessment of microcystin-LR using different AOPs based on UV, O3 and H2O2[J]. Front. Environ. Sci. Eng., 2018, 12(3): 12.
 URL:  
http://journal.hep.com.cn/fese/EN/10.1007/s11783-018-1030-2
http://journal.hep.com.cn/fese/EN/Y2018/V12/I3/12
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
Siyi Lu
Naiyu Wang
Can Wang
Fig.1  Degradation of MC-LR by various AOPs ( [MC-LR]0 = 100 μg·L1; UV intensity in water surface was 1000 μW·cm2; the initial concentration of H2O2 and O3 was 1.7mg·L1 and 0.125mg·L1, respectively; initial pH=5.5±1; room temperature=25±2 °C)
Fig.2  Comparison of MC-LR removal by UV-, H2O2-alone process and their combined process ([MC-LR]0 =100 μg·L1; UV intensity in water surface was 1000 μW·cm2; [H2O2]0 = 1.7 mg·L1 )
Fig.3  Degradation of MC-LR vs time as a function of H2O2 initial concentration. ([MC-LR]0 =100 μ·L1; UV intensity in water surface was 1000 μW·cm2; H2O2 concentration was 1.7 mg·L1)
Fig.4  Degragation of MC-LR by O3-alone process ([MC-LR]0 = 100 μg·L1; [O3]0 = 0.125 mg·L1; Ozone decay curve was tested in ultrapure water)
Fig.5  (a) The residual MC-LR concentration after O3-alone or O3/H2O2 oxidation; (b) Comparison of MC-LR removal by O3-, H2O2-alone process and their combined process at 2 min reaction time. (O3 concentration was 0.025, 0.125 and 0.250 mg·L1 for 10:1, 50:1 and 100:1, in turn. The initial H2O2 concentration was 1.7mg·L1).
Fig.6  Biotoxicity of solution oxidation by UV/H2O2 process ([H2O2]0 =0.34, 1.7, 3.4mg·L1, in turn; UV intensity was 1000 μW·cm2; control: biotoxicity of 100 μg·L1 MC-LR)
Fig.7  Biotoxicity of solution oxidation by (a) O3-alone process , (b) O3/H2O2 process ([O3]0=0.025, 0.125, 0.250 mg·L1, in turn; [H2O2]0=1.7 mg·L1; control: biotoxicity of 100 μg·L1 MC-LR; All of the biotoxicity tests were conducted after reaction time of 60 min)
1 Wang N Y, Wang K, Wang C. Performance comparison of different algicides on growth of Microcystis aeruginosa and microcystin (MC)-LR release as well as the removal pathway of MC-LR in riverways. Frontiers of Environmental Science & Engineering, 2017, 11(6): 3–11
https://doi.org/10.1007/s11783-017-0940-8
2 Sharma V K, Triantis T M, Antoniou M G, He X, Pelaez M, Han C, Song W, O’Shea K E, de la Cruz A A, Kaloudis T, Hiskia A, Dionysiou D D. Destruction of microcystins by conventional and advanced oxidation processes: A review. Separation and Purification Technology, 2012, 91: 3–17
https://doi.org/10.1016/j.seppur.2012.02.018
3 WHO. Guidelines for Drinking-Water Quality, 2nd ed: addendum to volume 2—Health Criteria and Other Supporting Information. Geneva: World Health Organization, 1998, 95–110
4 Chang J, Chen Z L, Wang Z, Shen J M, Chen Q, Kang J, Yang L, Liu X W, Nie C X. Ozonation degradation of microcystin-LR in aqueous solution: Intermediates, byproducts and pathways. Water Research, 2014, 63(7): 52–61
https://doi.org/10.1016/j.watres.2014.06.007 pmid: 24981743
5 Rositano J, Nicholson B C, Pieronne P. Destruction of cyanobacterial toxins by ozone. Ozone Science and Engineering, 1998, 20(3): 223–238
https://doi.org/10.1080/01919519808547273
6 Al Momani F, Smith D W, Gamal El-Din M. Degradation of cyanobacteria toxin by advanced oxidation processes. Journal of Hazardous Materials, 2008, 150(2): 238–249
https://doi.org/10.1016/j.jhazmat.2007.04.087 pmid: 17560023
7 Park J A, Yang B, Park C, Choi J W, Genuchten C M V, Lee S H. Oxidation of microcystin-LR by the fenton process: Kinetics, degradation intermediates, water quality and toxicity assessment. Chemical Engineering Journal, 2016, 309: 339–348
https://doi.org/10.1016/j.cej.2016.10.083
8 Liu I, Lawton L A, Cornish B, Cornish B, Robertson P K J. Mechanistic and toxicity studies of the photocatalytic oxidation of microcystin-LR. Journal of Photochemistry and Photobiology A Chemistry, 2002, 148(1): 349–354
https://doi.org/10.1016/S1010-6030(02)00062-X
9 Wang C, Xi J Y, Hu H Y. Chemical identification and acute biotoxicity assessment of gaseous chlorobenzene photodegradation products. Chemosphere, 2008, 73(8): 1167–1171
https://doi.org/10.1016/j.chemosphere.2008.07.065 pmid: 18774585
10 Sun X, Wang C, Ji M. Production and release of microcystin-LR during treatment using chemical algicide. Fresenius Environmental Bulletin, 2017, 26(1A): 572–578
11 Wang C, Huang Y K, Zhao Q, Ji M. Treatment of secondary effluent using a three-dimensional electrode system: COD removal, biotoxicity assessment, and disinfection effects. Chemical Engineering Journal, 2014, 243: 1–6
https://doi.org/10.1016/j.cej.2013.12.044
12 Chang J, Chen Z L, Wang Z, Kang J, Chen Q, Lei Y, Shen J M. Oxidation of microcystin-LR in water by ozone combined with UV radiation: The removal and degradation pathway. Chemical Engineering Journal, 2015, 276: 97–105
https://doi.org/10.1016/j.cej.2015.04.070
13 He X, Pelaez M, Westrick J A, O’Shea K E, Hiskia A, Triantis T, Kaloudis T, Stefan M I, de la Cruz A A, Dionysiou D D. Efficient removal of microcystin-LR by UV-C/H2O2 in synthetic and natural water samples. Water Research, 2012, 46(5): 1501–1510
https://doi.org/10.1016/j.watres.2011.11.009 pmid: 22177771
14 He X, de la Cruz A A, Hiskia A, Kaloudis T, O’Shea K, Dionysiou D D. Destruction of microcystins (cyanotoxins) by UV-254 nm-based direct photolysis and advanced oxidation processes (AOPs): Influence of variable amino acids on the degradation kinetics and reaction mechanisms. Water Research, 2015, 74: 227–238
https://doi.org/10.1016/j.watres.2015.02.011 pmid: 25744186
15 Ren J. The inhibition mechanism and effect of UV/H2O2 process on Microcystis aeruginosa and its degradation mechanism to microcystin-LR. Dissertation for the Doctoral Degree. Shanghai: Fudan University, 2011 (in Chinese)
16 Lawton L A, Robertson P K J. Physico-chemical treatment methods for the removal of microcystins (cyanobacterial hepatotoxins) from potable waters. Chemical Society Reviews, 1999, 28(4): 217–224
https://doi.org/10.1039/a805416i
17 Antoniou M G, Shoemaker J A, de la Cruz A A, Dionysiou D D. Unveiling new degradation intermediates/pathways from the photocatalytic degradation of microcystin-LR. Environmental Science & Technology, 2008, 42(23): 8877–8883
https://doi.org/10.1021/es801637z pmid: 19192812
18 Song W, Xu T, Cooper W J, Dionysiou D D, De la Cruz A A, O’Shea K E. Radiolysis studies on the destruction of microcystin-LR in aqueous solution by hydroxyl radicals. Environmental Science & Technology, 2009, 43(5): 1487–1492
https://doi.org/10.1021/es802282n pmid: 19350924
19 Hureiki L, Croué J P, Legube B, Dore M. Ozonation of amino acids: Ozone demand and aldehyde formation. Ozone Science and Engineering, 1998, 20(5): 381–402
https://doi.org/10.1080/01919519809480349
20 Chang J. Study on degradation mechanisms of different oxidation methods based on removal of microcystin-LR in water. Dissertation for the Doctoral Degree. Harbin: Harbin Institute of Technology, 2015 (in Chinese)
[1] FSE-17127-OF-LSY_suppl_1 Download
Related articles from Frontiers Journals
[1] Pan Gao, Yuan Song, Shaoning Wang, Claude Descorme, Shaoxia Yang. Fe2O3-CeO2-Bi2O3/γ-Al2O3 catalyst in the catalytic wet air oxidation (CWAO) of cationic red GTL under mild reaction conditions[J]. Front. Environ. Sci. Eng., 2018, 12(1): 8-.
[2] Naiyu Wang, Kai Wang, Can Wang. Comparison of different algicides on growth of Microcystis aeruginosa and microcystin release, as well as its removal pathway in riverways[J]. Front. Environ. Sci. Eng., 2017, 11(6): 3-.
[3] Chengbin XIAO, Hai YAN, Junfeng WANG, Wei WEI, Jun NING, Gang PAN. Microcystin-LR biodegradation by Sphingopyxis sp. USTB-05[J]. Front Envir Sci Eng Chin, 2011, 5(4): 526-532.
[4] Liang SUN, Can WANG, Min JI, Fen WANG. Achieving biodegradability enhancement and acute biotoxicity removal through the treatment of pharmaceutical wastewater using a combined internal electrolysis and ultrasonic irradiation technology[J]. Front Envir Sci Eng Chin, 2011, 5(3): 481-487.
[5] SHENG Jianwu, HE Miao, YU Shaoqing, SHI Hanchang, QIAN Yi. Microcystin-LR detection based on indirect competitive enzyme-linked immunosorbent assay[J]. Front.Environ.Sci.Eng., 2007, 1(3): 329-333.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed