Petroleum-contaminated soil: using sonolysis to improve mineralization and biodegradation potential of Fenton reaction and ozonolysis process

Testolin, Renan C.; Mater, Luciana; Radetski-Silva, Ramaiana; Sanches-Simões, Eric; Pimentel-Almeida, Wendell; Schmidt, Gabriela T; Neto, Rafael Ariente; Corrêa, Albertina X.R.; Somensi, Cléder A.; Radetski, Claudemir M.

doi:10.1007/s11356-020-12187-9

Cited by 5 publications

(1 citation statement)

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“…Calcite and magnesite were used to remediate acidified forest soil (Iljkic et al, 2019), and after 7 years of application, the pH of soil moisture was increased, and the Al concentration was decreased (Iljkic et al, 2019). Advanced oxidation processes have been widely used in soil remediation, such as ozone (Testolin et al, 2021), photocatalysis (Mambwe et al, 2021), electrochemical oxidation (Brillas, 2021), and chemical methods (using hydrogen peroxide, permanganate, and persulfate) (Neyens and Baeyens, 2003;Ushani et al, 2020). Highly active free hydroxyl radicals are produced during Fenton oxidation, which can oxidize S 2in ASS.…”

Section: Introductionmentioning

confidence: 99%

Ca-Al-Containing Slag As an Advanced Fenton System for the Remediation of Acid Sulfate Soil

Zeng¹,

Feng²,

Wei³

et al. 2021

Environmental Engineering Science

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For the first time, an industrial solid waste (CAS) was used for the rapid oxidation and neutralization of acidic sulfate soil. The waste mainly contained Fe-doped CaCO 3 and CaAl-layered double hydroxide (LDH). After treatment, CAS neutralized the acidic soil with the aid of hydrogen peroxide. Compared with other oxidationaccelerating materials, including activated carbon, biochar, and Fe-doped biochar, CAS showed the best oxidation rate acceleration. When the ratio of CAS and sulfur in acidic soil was 1.5:1, the pH of the soil changed to 6.32 and the oxidation rate increased by 50%. The characterization results showed that the main products of CAS were CaMg oxides and Ca-Al LDH. The oxidation product (SO 4 2-) was intercalated into the LDH interlayers. The accelerated oxidation mechanism of CAS was divided into the following stages: accelerated Fenton oxidation; LDH adsorption of oxidized SO 4 2-; and neutralization of sulfuric acid by calcium carbonate. The main results of this work provide a high-value-added utilization method of solid waste for acidic soil remediation.

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