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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A review of pesticides sorption in biochar from maize, rice, and wheat residues: Current status and challenges for soil application

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Author(s):
Ogura, Allan Pretti [1, 2] ; Lima, Jacqueline Zanin [3] ; Marques, Jessica Pelinsom [3] ; Sousa, Lucas Massaro [4] ; Silvestre Rodrigues, Valeria Guimaraes [3] ; Gaeta Espindola, Evaldo Luiz [1, 2]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Sao Carlos Sch Engn, PPG SEA, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Sao Carlos Sch Engn, NEEA CRHEA SHS, BR-13560970 Sao Carlos, SP - Brazil
[3] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Geotech Engn, BR-13560970 Sao Carlos, SP - Brazil
[4] IFP Energies Nouvelles, Proc Design & Modeling Div, F-69360 Solaize - France
Total Affiliations: 4
Document type: Journal article
Source: Journal of Environmental Management; v. 300, DEC 15 2021.
Web of Science Citations: 0
Abstract

The use of pesticides has been increasing in recent years for maintaining traditional agricultural practices. However, these chemicals are associated with several environmental impacts, demanding urgent remediation techniques. Biochar is a carbonaceous material produced by pyrolysis that has the potential for pesticide sorption and remediation. In this context, this interdisciplinary review systematically assessed the state of the knowledge of crop residues to produce biochar for pesticide sorption. We focused on maize, rice, and wheat residues since these are the three most-produced grains worldwide. Besides, we evaluated different biochar handling, storage, and soil dispersion techniques to ease its implementation in agriculture. In general, pyrolysis temperature influences biochar characteristics and its potential for pesticide sorption. Furthermore, biochar amended soils had greater pesticide sorption capacity, limiting potential leaching and runoff. Most studies showed that the feedstock and specific surface area influence the biochar sorption properties, among other factors. Also, biochar reduces pesticides' bioavailability, decreasing their toxicity to soil organisms and improving soil fertility and crop yields. Nonetheless, the retrieved papers assessed only 21 pesticides, mainly consisting of lab-scale batch experiments. Therefore, there is still a gap in studies evaluating biochar aging, its potential desorption, pesticide co-contaminations, the associated microbiological processes, and field applications. Determining flow properties for biochars of different sizes and pellets is vital for reliable handling equipment design, and performing technoeconomic assessment under different farm contexts is encouraged. Ultimately, coupling biochar production with residue management could address this challenge on sustainable agricultural systems. (AU)

FAPESP's process: 15/18790-3 - Environmental effects of the pasture-sugarcane conversion and pasture intensification
Grantee:Luiz Antonio Martinelli
Support Opportunities: Research Program on Global Climate Change - Thematic Grants
FAPESP's process: 17/16961-0 - Use of organic compost and peat in the retention of Pb, Zn and Cd and evaluation of the possible availability, toxicity and bioaccessibility of these metals after retention
Grantee:Jacqueline Zanin Lima
Support Opportunities: Scholarships in Brazil - Doctorate