Leaching and degradation of 21 pesticides in a full-scale model biobed

Spliid, Niels Henrik; Helweg, A.; Heinrichson, Kirsten

doi:10.1016/j.chemosphere.2006.05.049

Cited by 73 publications

(49 citation statements)

References 10 publications

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“…The Swedish biobed is also adapted to other climate conditions, especially for the availability of the materials to create the biomix, and called ''biomassbed'' developed in mediterrannean condition using residue of grape and citrus cultivation (Vischetti et al 2004;Fait et al 2007). During a total study period of 563 days, Spliid et al (2006) did not find any traces of 10 of 21 applied pesticides in the percolate of a biobed created as an excavation lined with clay and filled with a mixture of chopped straw, sphagnum and soil with turf on top, and with increased sorption capacity and microbial activity for degradation of the pesticides (detection limits between 0.02 and 0.9 lg L -1 ). Just three pesticides were only detected once and at concentrations below 2 lg L -1 .…”

Section: Biomassbedmentioning

confidence: 91%

Mitigation of agricultural nonpoint-source pesticide pollution in artificial wetland ecosystems

et al. 2008

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International audienceContamination caused by pesticides in agriculture is a source of environmental poor water quality in some of the European Union countries. Without treatment or targeted mitigation, this pollution is diffused in the environment. Pesticides and some metabolites are of increasing concern because of their potential impacts on the environment, wildlife and human health. Within the context of the European Union (EU) water framework directive context to promote low pesticide-input farming and best management practices, the EU LIFE project ArtWET assessed the efficiency of ecological bioengineering methods using different artificial wetland (AW) prototypes throughout Europe. We optimized physical and biological processes to mitigate agricultural nonpoint-source pesticide pollution in artificial wetland ecosystems. Mitigation solutions were implemented at full-scale demonstration and experimental sites. We tested various bioremediation methods at seven experimental sites. These sites involved (1) experimental prototypes, such as vegetated ditches, a forest microcosm and 12 wetland mesocosms, and (2) demonstration prototypes: vegetated ditches, three detention ponds enhanced with technology of constructed wetlands, an outdoor bioreactor and a biomassbed. This set up provides a variety of hydrologic conditions, with some systems permanently flooded and others temporarily flooded. It also allowed to study the processes both in field and controlled conditions. In order to compare the efficiency of the wetlands, mass balances at the inlet and outlet of the artificial wetland will be used, taking into account the partition of the studied compound in water, sediments, plants, and suspended solids. The literature background necessary to harmonize the interdisciplinary work is reviewed here and the theoretical framework regarding pesticide removal mechanisms in artificial wetland is discussed. The development and the implementation of innovative approaches concerning various water quality sampling strategies for pesticide load estimates during flood, specific biological endpoints, innovative bioprocess applied to herbicide and copper mitigation to enhance the pesticide retention time within the artificial wetland, fate and transport using a 2D mixed hybrid finite element model are introduced. These future results will be useful to optimize hydraulic functioning, e.g., pesticide resident time, and biogeochemical conditions, e.g., dissipation, inside the artificial wetlands. Hydraulic retention times are generally too low to allow an optimized adsorption on sediment and organic materials accumulated in artificial wetlands. Absorption by plants is not either effective. The control of the hydraulic design and the use of adsorbing materials can be useful to increase the pesticides residence time and the contact between pesticides and biocatalyzers. Pesticide fluxes can be reduced by 50-80% when hydraulic pathways in artificial wetlands are optimized by increasing ten times the retention time, by recirculation of w...

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Section: Biomassbedmentioning

confidence: 91%

Mitigation of agricultural nonpoint-source pesticide pollution in artificial wetland ecosystems

et al. 2008

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“…Oversaturation with water can occur in the biobed, for example, when the sprayer is washed on the biobed (65,66). To avoid this situation, Swedish biobeds should not be used for washing of the sprayer.…”

Section: Biobed Water Managementmentioning

confidence: 99%

Biobeds for Environmental Protection from Pesticide Use—A Review

Castillo

Torstensson

Stenström

2008

J. Agric. Food Chem.

217

178

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Biobeds originated in Sweden in response to the need for simple and effective methods to minimize environmental contamination from pesticide use, especially when filling spraying equipment, a typical point source of contamination. The biobed system has attracted attention in several countries, where work is being conducted to adapt it to local conditions and applications. As a consequence, the biobed system has been more or less modified and sometimes renamed, for example, as biomassbed in Italy, biofilter in Belgium, and Phytobac and biobac in France. The effectiveness and simplicity of the biobed also make it suitable for use in developing countries, and different adaptations of the biobed concept now exist in, for instance, Peru, Guatemala, and Ecuador. When the modification of the biobed includes an intention to use it for retention and degradation of pesticides in sprayer washings, the construction has to be adapted to, for example, lined biobeds to ensure that no pesticide leaching will occur. Replacement of some of the original materials in the Swedish biomixture (straw, peat, and soil) can also change the performance of the system, for instance, the amount, activity, and composition of the microbial community that develops. This review presents the state of the art of biobeds and similar systems in Sweden and worldwide and identifies future research needs. Factors affecting the efficiency of biobeds in terms of degradation and retention of pesticides are discussed, with particular emphasis on the microbial processes involved.

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“…Much attention has been given to the use of pesticides in the field and the risk of pollution of ground and surface water (Spliid et al, 2006). Pesticides that readily leach beyond the root zone of the soil are suspected to have the greatest potential to pollute ground water.…”

Section: -Leachingmentioning

confidence: 99%

Review. An overview on the environmental behaviour of pesticide residues in soils

Navarro¹,

Vela²,

Navarro³

2013

Span. j. agric. res.

122

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The current state of knowledge of the main aspects regarding the behaviour and fate of pesticide residues in the soil environment is reviewed in this article. Once a pesticide is introduced into the environment, whether by application, disposal, or a spill, it can be influenced by many processes. Physical and chemical properties of the pesticide, site characteristics, such as soil, geology, and vegetation, environmental conditions, crop management systems, and chemical handling practices can all affect each process. Each factor must be considered when determining the likelihood of pesticide movement and off-target effect. These fate processes can have both positive (they can bring a pesticide in contact with the target pest) and negative (leading to injury of nontarget plants and animals) influences on a pesticide’s effectiveness or its impact on the environment. Processes responsible for accumulation, movement and disappearance of pesticides in the soil and the factors involved in their dynamics are assessed. Also, the environmental significance of the formation of bound residues and some techniques used currently for remediation of pesticide-contaminated soils are discussed according to the recent researches

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Leaching and degradation of 21 pesticides in a full-scale model biobed

Cited by 73 publications

References 10 publications

Mitigation of agricultural nonpoint-source pesticide pollution in artificial wetland ecosystems

Mitigation of agricultural nonpoint-source pesticide pollution in artificial wetland ecosystems

Biobeds for Environmental Protection from Pesticide Use—A Review

Review. An overview on the environmental behaviour of pesticide residues in soils

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