Combined electrolytic iron dissolution and ozonation process for arsenic removal from water

被引:0
作者
Contreras-Bustos, Roberto [1 ]
Gonzalez, Maria Elena Quezada [1 ]
Cercado, Bibiana [1 ]
Jimenez-Becerril, Jaime [2 ]
Solache-Rios, Marcos J. [2 ]
机构
[1] CONAHCYT, Ctr Invest & Desarrollo Tecnol Electroquim SC, Parque Tecnol Queretaro, Pedro Escobedo 76703, Queretaro, Mexico
[2] Inst Nacl Invest Nucl, Dept Quim, Carretera Mexico Toluca S-N, Ocoyoacac 52750, Mexico State, Mexico
关键词
Arsenic; Iron; Manganese; Electrocoagulation; Ozonation; DRINKING-WATER; OXIDATION; MANGANESE; MN; AS(III); AS(V); FE;
D O I
10.1016/j.dwt.2024.100108
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In some regions, underground water contains dissolved arsenic and this is a health risk for the population. In this work, arsenic was reduced to acceptable levels. Water from Zacatecas, Mexico, containing 1.58, 1.72 and 2.03 mg/L of As, Fe and Mn respectively, and pH 2.0, was treated with Fe from electrolytic dissolution, then with a mixture of ozone and air. The parameters considered during the treatment were agitation rate, ozone flux, pH, temperature, and dissolution time of iron. The concentration of As was reduced by co-precipitation with Fe from the electrolytic dissolution and by co-precipitation with Mn contained in the water when ozone was injected. The results indicated that the co-precipitation reactions depended on the mass transport. The ozone oxidizes the Mn in two steps (pH 2): firstly, the Mn (II) is oxidized to Mn (IV) and precipitated and secondly, the precipitated Mn (IV) is oxidized and dissolved as Mn (VII). Arsenic co-precipitated in the first Mn oxidation step, and then it turned into a solution together with the Mn at high flow of ozone. The residual concentrations of Fe, Mn and As in the water at pH 7 are 0.014, 0.07 and 0.00512 mg/L, respectively.
引用
收藏
页数:7
相关论文
共 34 条
  • [1] Arsenic Contamination of Groundwater and Its Implications for Drinking Water Quality and Human Health in Under-Developed Countries and Remote Communities-A Review
    Adeloju, Samuel B.
    Khan, Shahnoor
    Patti, Antonio F.
    [J]. APPLIED SCIENCES-BASEL, 2021, 11 (04): : 1 - 25
  • [2] Ashish K., 2015, Int. J. Water Wastewater Treat., V1, DOI [10.16966/2381-5299.108, DOI 10.16966/2381-5299.108]
  • [3] Banik RD, 2023, J Surv Fish Sci, V10, P6408
  • [4] Arsenic - a review. Part II: Oxidation of arsenic and its removal in water treatment
    Bissen, M
    Frimmel, FH
    [J]. ACTA HYDROCHIMICA ET HYDROBIOLOGICA, 2003, 31 (02): : 97 - 107
  • [5] Simultaneous removal of arsenic, iron and manganese from groundwater by oxidation-coagulation-adsorption at optimized pH
    Bora, Anup J.
    Mohan, Rajkamal
    Dutta, Robin K.
    [J]. WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY, 2018, 18 (01): : 60 - 70
  • [6] Removal of As(III) and As(V) by natural and synthetic metal oxides
    Chang, Yoon-Young
    Lee, Seung-Mok
    Yang, Jae-Kyu
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2009, 346 (1-3) : 202 - 207
  • [7] Well water contaminated by acidic mine water from the Dabaoshan Mine, South China: Chemistry and toxicity
    Chen, A.
    Lin, C.
    Lu, W.
    Wu, Y.
    Ma, Y.
    Li, J.
    Zhu, L.
    [J]. CHEMOSPHERE, 2007, 70 (02) : 248 - 255
  • [8] Arsenic toxicity, health hazards and removal techniques from water: an overview
    Choong, Thomas S. Y.
    Chuah, T. G.
    Robiah, Y.
    Koay, F. L. Gregory
    Azni, I.
    [J]. DESALINATION, 2007, 217 (1-3) : 139 - 166
  • [9] Arsenic removal from tap water by electrocoagulation: investigation of process parameters, kinetic analysis, and operating cost
    Das, Daisy
    Nandi, Barun Kumar
    [J]. JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2021, 42 (03) : 328 - 337
  • [10] A Comprehensive Review of the Latest Advancements in Controlling Arsenic Contaminants in Groundwater
    Dilpazeer, Fariha
    Munir, Mamoona
    Baloch, Muhammad Yousuf Jat
    Shafiq, Iqrash
    Iqbal, Javeeria
    Saeed, Muhammad
    Abbas, Muhammad Mujtaba
    Shafique, Sumeer
    Aziz, Kosar Hikmat Hama
    Mustafa, Ahmad
    Mahboob, Iqra
    [J]. WATER, 2023, 15 (03)