Enhanced and irreversible sorption of pesticide pyrimethanil by soil amended with biochars

Yu, Xiangyang; Pan, Ligang; Ying, Guang‐Guo; Kookana, Rai S.

doi:10.1016/s1001-0742(09)60153-4

Cited by 140 publications

(71 citation statements)

References 33 publications

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“…Alguns estudos recentes mostraram que a aplicação de biocarvão (biochar) em solos contaminados consegue imobilizar a ação dos xenobióticos no solo, limitando a biodisponibilidade e fitotoxicidade, além de melhorar o desenvolvimento das plantas (NAMGAY et al, 2010;YU et al, 2010;CUI et al, 2011;JONES & OBURGER, 2011), entretanto, as informações sobre o funcionamento das plantas fitorremediadoras na presença de biocarvão ainda são escassas.…”

Section: Quadro 2 -Biodegradação De Pesticidas Por Diferentes Espécieunclassified

Biotecnologias De Remediação De Solos Contaminados Com Agroquímicos

Alves¹,

Bandeira²,

Borges³

et al. 2016

Agr. Acad.

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RESUMOA contaminação do ambiente agrícola tornou-se um grave problema global. O uso indiscriminado de pesticidas tem provocado diversos problemas à saúde humana, toxicidade a organismos alvo e não alvo, além de alterar a qualidade do ar, água e solo. Em 2008, o Brasil se tornou o maior consumidor mundial de pesticidas e por isso cresce o interesse em investigar estratégias de remediação in situ desses compostos. Neste sentido o objetivo desta pesquisa foi discutir sobre as diferentes estratégias de fitorremediação e vermirremediação de solos contaminados com pesticidas e as respectivas vantagens e limitações de cada uma dessas biotecnologias. Observou-se que as biotecnologias apresentadas neste trabalho apresentam vantagens econômicas e ambientais em comparação com os métodos físicos e químicos, porém apresentam limitações que precisam ser superadas através de pesquisa científica e ensaios em escala de laboratório, piloto e campo. Muitos trabalhos têm sido desenvolvidos na área de biotecnologias de remediação de solos contaminados por pesticidas, entretanto a maioria ocorre em condições de clima temperado. O Brasil precisa explorar mais essas biotecnologias uma vez que dispõe de elevado potencial por possuir condições climáticas e biodiversidade mais favorável em comparação com regiões de clima temperado. PALAVRAS-CHAVE: Contaminantes orgânicos, fitorremediação, vermirremediação. REMEDIATION BIOTECHNOLOGIES FOR CONTAMINATED SOIL WITH AGROCHEMICALSABSTRACT The contamination of the agricultural environment has become a major global problem. The indiscriminate use of pesticides has caused several problems to human health, toxicity to target organisms and non-target, and change the quality of air, water and soil. In 2008, Brazil became the world's largest consumer of pesticides and therefore growing interest in investigating remediation strategies in situ these compounds. In this sense, the objective of this research is to discuss the different strategies of phytoremediation and vermiremediation of soils contaminated with AGRARIAN ACADEMY, Centro Científico Conhecer -Goiânia, v.3, n.05; p.2016 28 pesticides and their advantages and limitations of each of these biotechnologies. It was observed that biotechnologies presented in this work have economic and environmental advantages compared to the physical and chemical methods, but have limitations that must be overcome through scientific research and conduct testing in laboratory scale, pilot scale and field scale. Many studies have been developed in the area contaminated by pesticides soil remediation technologies, though most occur in temperate conditions. Brazil needs to further explore these biotechnologies since it has high potential for having climatic conditions and more favorable biodiversity compared with temperate regions. KEYWORDS: Phytoremediation, vermiremediation, organic contaminants. INTRODUÇÃOAs principais fontes de contaminação do solo e água provém de rejeitos urbanos e industriais, agroquímicos e/ou vazamentos acidentais de compostos xenobióticos. Q...

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Section: Quadro 2 -Biodegradação De Pesticidas Por Diferentes Espécieunclassified

Biotecnologias De Remediação De Solos Contaminados Com Agroquímicos

Alves¹,

Bandeira²,

Borges³

et al. 2016

Agr. Acad.

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“…Interestingly, the extent of phenanthrene desorption was dependent on the desorption media and was in the following order: compost > biochar > AC, due to higher surface area and volume of nanopores in AC and biochar [130]. Pyrimethanil desorption behaviour was assessed in soils containing red gum biochar produced at 450°C (BC450) and 850 °C (BC850) by Yu et al [131]. The data showed that as concentrations of biochar increased, the degree of non-linear sorption increased, whilst BC850 showed greater extents of sorption compared to BC450 and control soil.…”

Section: Desorption Mechanism Studiesmentioning

confidence: 99%

“…Thus, it serves as a biomimetic tool to predict the bioaccessible portion of PAHs in soils [10]. It is believed that the increased sorption of organic contaminants will decrease the bioavailable/bioaccessible fraction of contaminant for uptake and biodegradation [128,131,132]. Rhodes et al [14] first assessed the extractability of spiked PAHs using HPCD in black carbon (BC)-amended soils.…”

Section: Biodegradationmentioning

confidence: 99%

“…Preferably, wood-derived biochar produced at high temperatures under slow pyrolysis will contain lower concentrations of PAHs [140,144,145]. It is, however, worthy of note that the quality (nanopore distribution and chemical properties) of biochar is of greater importance than the quantity, as it is suggested that the higher quantity can be more expensive and may have deleterious effects on the receiving soil due to the presence of intrinsic hydrocarbons [131,132,147].…”

Section: Application Of Biochar In Remediation Of Contaminated Soilmentioning

confidence: 99%

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Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

Ogbonnaya

Semple

2013

Agronomy

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Abstract:The presence of biochar in soils through natural processes (forest fires, bush burning) or through application to soil (agriculture, carbon storage, remediation, waste management) has received a significant amount of scientific and regulatory attention. Biochar alters soil properties, encourages microbial activity and enhances sorption of inorganic and organic compounds, but this strongly depends on the feedstock and production process of biochar. This review considers biochar sources, the production process and result of pyrolysis, interactions of biochar with soil, and associated biota. Furthermore, the paper focuses on the interactions between biochar and common anthropogenic organic contaminants, such as polycyclic aromatic hydrocarbons (PAHs), pesticides, and dioxins, which are often deposited in the soil environment. It then considers the feasibility of applying biochar in remediation technologies in addition to other perspective areas yet to be explored.

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“…However, types of biochar that have an exceptionally high sorption [10] or degradation [7,11] capacity for organic chemicals, especially pesticides, may have both positive and negative impacts on pest management. On the one hand, the high retentive qualities of biochar may prevent or reduce the leaching of soil-applied herbicides and insecticides [12,13] and may decrease the rate at which they are degraded by soil microorganisms. On the other hand, types of biochar that have strong sorption or degradation affinities for pesticides may result in low effective concentrations for pest management, meaning that greater amounts of pesticide must be applied to achieve the same level of pest protection.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Two Types of Biochars on the Efficacy, Emission, Degradation, and Adsorption of the Fumigant Methyl Isothiocyanate

et al. 2016

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Biochar (BC) is increasingly applied in agriculture; however, due to its adsorption and degradation properties, biochar may also affect the efficacy of fumigant in amended soil. Our research is intended to study the effects of two types of biochars (BC-1 and BC-2) on the efficacy and emission of methyl isothiocyanate (MITC) in biochar amendment soil. Both types of biochars can significantly reduce MITC emission losses, but, at the same time, decrease the concentration of MITC in the soil. The efficacy of MITC for controlling soil-borne pests (Meloidogyne spp., Fusarium spp. Phytophthora spp., Abutilon theophrasti and Digitaria sanguinalis) was reduced when the biochar (BC-1 and BC-2) was applied at a rate of higher than 1% and 0.5% (on a weight basis) (on a weight basis), respectively. However, increased doses of dazomet (DZ) were able to offset decreases in the efficacy of MITC in soils amended with biochars. Biochars with strong adsorption capacity (such as BC-1) substantially reduced MITC degradation rate by 6.2 times, and increased by 4.1 times following amendment with biochar with high degradability (e.g., BC-2), compared to soil without biochar amendment. This is due to the adsorption and degradation of biochar that reduces MITC emission losses and pest control.

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Enhanced and irreversible sorption of pesticide pyrimethanil by soil amended with biochars

Cited by 140 publications

References 33 publications

Biotecnologias De Remediação De Solos Contaminados Com Agroquímicos

Biotecnologias De Remediação De Solos Contaminados Com Agroquímicos

Impact of Biochar on Organic Contaminants in Soil: A Tool for Mitigating Risk?

The Effect of Two Types of Biochars on the Efficacy, Emission, Degradation, and Adsorption of the Fumigant Methyl Isothiocyanate

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