Advances in Chile for the Treatment of Pesticide Residues: Biobeds Technology

Briceño, Gabriela; Rubilar, Olga; Palma, G. Massimo; Díez, M.C.

doi:10.1007/978-3-319-05738-5_4

Cited by 7 publications

(5 citation statements)

References 37 publications

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“…This group published the first guideline for the Construction and Operation of Biobeds in Spanish (Diez et al, 2013c), where detailed instructions are provided to farmers from La Araucanía region, in Chile, in order to manage pesticide residues using biobeds. Advances in treatment of pesticide residues in Chile are discussed by Briceño et al (2014), confirming that this country was the pioneer of biobeds technology in LA, installing bioreactors in real scale. Their lines of work involve evaluating new organic materials for the biomixture (Diez et al, 2013a), including the coapplication of terpenes for degradation enhancement (Tortella et al, 2013b), bioaugmentation strategies and the benefits of the rhizosphere environment (Campos et al, 2017;Diez et al, 2017).…”

Section: Overview Of the System And Background In Latin Americamentioning

confidence: 79%

“…However, when this happens while filling the spraying equipment or handling pesticide residues, it is called point-source contamination. Inadequate practices generate residues that may cause contamination of surface water, groundwater, soil and biota (Briceño et al, 2014;Rodríguez-Rodríguez et al, 2018). Through good agricultural practices, the contamination can be reduced or even avoided, and the biobed comprises one of those practices.…”

Section: Introductionmentioning

confidence: 99%

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Destination of pesticide residues on biobeds: State of the art and future perspectives in Latin America

et al. 2020

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Section: Overview Of the System And Background In Latin Americamentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Destination of pesticide residues on biobeds: State of the art and future perspectives in Latin America

et al. 2020

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“…garden wastes [83,84], livestock manure [80,85], olive leaves [68,86,87], pine bark [80], and sewage sludge [88]. Spent mushroom substrates and biochar have also been incorporated into the biomixture composition as complementary materials in pesticide dissipation [38,39,42,70,[89][90][91].…”

Section: Biomixturementioning

confidence: 99%

“…Microorganisms such as bacteria and fungi may use pesticide molecules such as carbon, nitrogen, phosphorous, and energy sources for their growth. The efficient pesticide degradation by microorganisms is related to their great genetic plasticity, the production of diverse pesticide-degrading enzymes, fast growth, and adaptability to living in polluted environments [89].…”

Section: Microorganismsmentioning

confidence: 99%

Biobeds, a Microbial-Based Remediation System for the Effective Treatment of Pesticide Residues in Agriculture

Mussali-Galante,

Castrejón-Godínez,

Díaz-Soto

et al. 2023

Agriculture

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Pesticides are chemical molecules employed to protect crops from pests in agriculture. The use of pesticides significantly enhances crop yields and helps to guarantee the quality of farm products; due to this, each year, millions of tons of pesticides are employed in crop fields worldwide. However, the extensive use of pesticides has been related to environmental pollution, mainly in soils and water bodies. The presence of pesticides in the environment constitutes a menace to biodiversity, soil fertility, food supply, and human health. Activities related to pesticide use in crops, such as the handling and pesticide dissolution before application, the filling and cleaning of aspersion equipment and machinery, accidental spills in crop fields, and the inadequate disposal of pesticide residues have been identified as important punctual pesticide pollution sources. Therefore, avoiding releasing pesticide residues into the soil and water is crucial to mitigating the environmental pollution associated with agricultural practices. Biobeds are biological systems that have been proposed as feasible, low-cost, and efficient alternatives for punctual pesticide pollution mitigation. Biobeds were first described as trenches packed with a mixture of 50% wheat straw, 25% soil, and 25% peat, covered with a grass layer; this composition is known as a “biomixture”. In biobeds, the biomixture absorbs the pesticide residues and supports the development of different microorganisms, such as bacteria and fungi, needed for pesticide degradation in the system. The effectiveness of a biobed systems lies in the high pesticide retention in the biomixture and the degradation potential of the microorganisms growing in the system. In this review, 24 studies published in the last five years (2018–2022) related to pesticide biodegradation in biobed systems are analyzed, emphasizing alternative biomixture composition usage, microbiological strategies, and the key physicochemical parameters for efficient pesticide degradation in the biobed systems. The availability of robust scientific evidence about the simple applicability, low cost, and effectiveness of biobeds for pesticide residue treatment is crucial to increasing the use of biobeds by farmers in different agricultural regions around the world.

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“…Different studies have assessed the effects of operating conditions, biomixture composition, stabilization time of the biomixture, incorporation of novel lignocellulosic residues, and biomixturepesticide-microorganism interactions Urrutia et al, 2013). These results were recently reviewed by Briceño et al (2014).…”

Section: Introductionmentioning

confidence: 99%

Rhizosphere effect on pesticide degradation in biobeds under different hydraulic loads

Díez

Schalchli

Elgueta

et al. 2015

J. Soil Sci. Plant Nutr.

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Interactions between microorganisms and root exudates in a biobed system with vegetal (grass) cover could enhance pesticide degradation. Otherwise, a high water load may generate high concentrations of pesticides in lixiviates. We studied the effect of the vegetal cover on the degradation of a mixture of atrazine (ATZ), chlorpyrifos (CHL) and iprodione (IPR) (35 mg L -1 each) in a biobed system operated with two different hydraulic loads (0.6 and 1.2 L of tap water per day). The concentration of the pesticides and their main metabolites were measured in the lixiviates during 60 days, as well as in the biomixtures at the end of the study. Dehydrogenase activity in the biomixtures and organic acid exudation from the vegetal cover were also analysed. The vegetal cover diminished the lixiviation of pesticides and their metabolites mainly at the lower hydraulic load used. The degradation of the pesticides was high (>95%) and increased in biobeds with vegetal cover and low hydraulic load. Degradation metabolites of CHL and IPR were formed during pesticide degradation; however they were degraded in the biobed and were not detected in lixiviates at the end of the study. In general, an increase in organic acid exudation by vegetal cover was observed caused by chemical stress after pesticide application. The increase was similar at both hydraulic loads. Efficient colonisation of wheat straw by fungi was observed by confocal microscopy.

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Advances in Chile for the Treatment of Pesticide Residues: Biobeds Technology

Cited by 7 publications

References 37 publications

Destination of pesticide residues on biobeds: State of the art and future perspectives in Latin America

Destination of pesticide residues on biobeds: State of the art and future perspectives in Latin America

Biobeds, a Microbial-Based Remediation System for the Effective Treatment of Pesticide Residues in Agriculture

Rhizosphere effect on pesticide degradation in biobeds under different hydraulic loads

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