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Biogeochemistry of arsenic and lead in soil remediated with biochar

Grant number: 19/06897-9
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2020
Effective date (End): January 31, 2023
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal Investigator:Luís Reynaldo Ferracciú Alleoni
Grantee:Matheus Bortolanza Soares
Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Associated scholarship(s):20/13700-4 - Effect of pyrogenic carbon in arsenic species and their interaction with biogenic iron oxide in a contaminated sediment amended with biochar, BE.EP.DR


In recent years, several countries have reported high concentrations of Potentially Toxic Elements (PTEs), including arsenic (As) and lead (Pb) in soils and sediments. Part of the origin of this contamination is related to the mining activity, due to the production of large amounts of tailings, which are important source of PTEs for the environment. In situ remediation by means of the addition of organic conditioners such as bio-carbon is an alternative to resume contaminated soil quality, as it promotes the immobilization of EPTs and thus reduces the risks associated with these pollutants. The effect of the bio-carbon is closely linked to the pyrolysis temperature for its production. Under soil reducing conditions, there are changes in the biogeochemical processes that govern the dynamics of EPTs, especially those that undergo oxidation and that present strong interaction with oxides and organic matter. The evaluation of the PTE dynamics is more complete when one understands the influence of the synergism of the microorganisms associated with organic sources and the geochemical interaction of the other soil chemical elements with the PTEs. In this project we intend to evaluate (i) the effect of the pyrolysis pyrolysis temperature under the availability of As and Pb over time; (ii) the influence of the addition of bio-carbon on the dynamics and remediation of As and Pb in contaminated soil; (iii) the effect of biochar in the enzymatic activity of soil microorganisms; (iv) if different pyrolysis temperatures affect the leaching of As and Pb, and identify the main leached species; and (v) the effect of different biochar pyrolysis temperatures on the availability of As and Pb in soil under reducing condition. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SOARES, MATHEUS BORTOLANZA; DOS SANTOS, FELIPE HIPOLITO; FERRACCIU ALLEONI, LUIS REYNALDO. Temporal changes in arsenic and lead pools in a contaminated sediment amended with biochar pyrolyzed at different temperatures. Chemosphere, v. 287, n. 1, . (19/06897-9)
SOARES, MATHEUS B.; DUCKWORTH, OWEN W.; STYBLO, MIROSLAV; CABLE, PETER H.; ALLEONI, LUIS R. F.. Pyrolysis temperature and biochar redox activity on arsenic availability and speciation in a sediment. JOURNAL OF HAZARDOUS MATERIALS, v. 460, p. 13-pg., . (20/13700-4, 19/06897-9)
GOMES, FREDERICO PRESTES; SOARES, MATHEUS BORTOLANZA; DE CARVALHO, HUDSON WALLACE PEREIRA; SHARMA, AAKRITI; HESTERBERG, DEAN; ALLEONI, LUIS REYNALDO FERRACCIU. Zinc speciation and desorption kinetics in a mining waste impacted tropical soil amended with phosphate. Science of The Total Environment, v. 864, p. 9-pg., . (19/06897-9, 16/13734-0, 17/11700-4)
SOARES, MATHEUS BORTOLANZA; MILORI, DEBORA MARCONDES BASTOS PEREIRA; ALLEONI, LUIS REYNALDO FERRACCIU. How does the biochar of sugarcane straw pyrolysis temperature change arsenic and lead availabilities and the activity of the microorganisms in a contaminated sediment?. Journal of Soils and Sediments, v. 21, n. 9, . (19/06897-9)
SOARES, MATHEUS B.; CERRI, CARLOS E. P.; DEMATTE, JOSE A. M.; ALLEONI, LUIS R. F.. Biochar aging: Impact of pyrolysis temperature on sediment carbon pools and the availability of arsenic and lead. Science of The Total Environment, v. 807, n. 3, . (19/06897-9)
GOMES, FREDERICO PRESTES; SOARES, MATHEUS BORTOLANZA; AMOOZEGAR, AZIZ; ALLEONI, LUIS REYNALDO FERRACCIU. How Does the Use of Biochar, Phosphate, Calcite, and Biosolids Affect the Kinetics of Cadmium Release in Contaminated Soil?. WATER AIR AND SOIL POLLUTION, v. 234, n. 7, p. 16-pg., . (16/13734-0, 17/11700-4, 19/06897-9)
SOARES, MATHEUS B.; DUCKWORTH, OWEN W.; ALLEONI, LUIS R. F.. The role of dissolved pyrogenic carbon from biochar in the sorption of As (V) in biogenic iron (oxyhydr)oxides. Science of The Total Environment, v. 865, p. 10-pg., . (20/13700-4, 19/06897-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SOARES, Matheus Bortolanza. Biogeochemistry of arsenic and lead in sediment and water amended with biochar. 2023. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.

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