Selection of low cost materials for the sorption of copper and herbicides as single or mixed compounds in increasing complexity matrices

Huguenot, David; Bois, Paul; Jézéquel, Karine; Cornu, Jean-Yves; Lebeau, Thierry

doi:10.1016/j.jhazmat.2010.05.062

Cited by 29 publications

(14 citation statements)

References 53 publications

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“…On the other hand, installation of membranes (e.g., geotextile material) performs well to reduce downward infiltration but their cost can be prohibitive. Finally, addition of organic substrates could temporarily retain pesticide through partially reversible adsorption and can help reduce leaching (Huguenot et al, 2010).…”

Section: Water Lossesmentioning

confidence: 99%

Pesticide contamination interception strategy and removal efficiency in forest buffer and artificial wetland in a tile-drained agricultural watershed

Passeport¹,

Tournebize²,

Chaumont³

et al. 2013

Chemosphere

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Pesticide pollution is a major threat to aquatic ecosystems that can be mitigated through complementary actions including buffer zones (BZs). This paper discusses the results of 3 yr of field-scale monitoring of the concentration and load transfer of 16 pesticides out of a tile-drained catchment (Bray, France) and their reduction through two BZ: an artificial wetland (AW) and a forest buffer (FB). Typically, the highest concentrations were measured in the first flows following pesticide applications or resuming after periods of low or no flow. An open/close water management strategy was implemented to operate the parallel BZ based on pesticide applications by the farmer. The strategy was efficient in intercepting molecules whose highest concentrations occurred during the first flows following application. Inlet vs. outlet pesticide load reductions ranged from 45% to 96% (AW) and from -32% to 100% (FB) depending on the pesticide molecule and the hydrological year. Partly reversible adsorption was a dominant process explaining pesticide removal; whereas, degradation occurred for sufficiently long water retention time. Apart from the least sorbing molecules (e.g., isoproturon), BZ can partially remove pesticide pollution.

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Section: Water Lossesmentioning

confidence: 99%

Pesticide contamination interception strategy and removal efficiency in forest buffer and artificial wetland in a tile-drained agricultural watershed

Passeport¹,

Tournebize²,

Chaumont³

et al. 2013

Chemosphere

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“…For copper complexation, a sterile casamino acids liquid medium (5 g L −1 , BactoDifco) was inoculated with colonies picked after growth on solid sediment extract medium (see below; Lebeau et al 2002;Huguenot et al 2010) and incubated for 5 days at 28°C. Complexation was detected by mixing 0.5 mL of bacterial culture supernatant obtained after centrifugation (7,155×g, 10 min) with 0.5 mL CAS (chrome azurol S) reagent (Schwyn and Neilands 1987), in the presence of 4 mM 5-sulfosalycilic acid.…”

Section: Herbicide Degradation and Copper Complexationmentioning

confidence: 99%

“…Complexation was detected by mixing 0.5 mL of bacterial culture supernatant obtained after centrifugation (7,155×g, 10 min) with 0.5 mL CAS (chrome azurol S) reagent (Schwyn and Neilands 1987), in the presence of 4 mM 5-sulfosalycilic acid. The CAS-iron complex was measured spectrophotometrically at 630 nm after incubation in the dark for 2 h. 2.3 Enumeration of cultivable heterotrophic bacteria from the sediment Cultivable bacteria were enumerated after plating on solid sediment extract medium (Lebeau et al 2002;Huguenot et al 2010) containing 15 g L −1 agar. One gram of sediment sample was suspended in 9 mL of a sterile solution of sodium hexametaphosphate (1.7 g L −1 , pH 7.0) for 1 h. Serial tenfold dilutions in KCl (9 g L −1 ) were plated, and plates were incubated at 28°C for 48 h (faster-growing bacteria) and 7 days (total bacteria).…”

Section: Herbicide Degradation and Copper Complexationmentioning

confidence: 99%

Herbicide degradation and copper complexation by bacterial mixed cultures from a vineyard stormwater basin

et al. 2011

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Purpose: The use of stormwater basins as constructed wetlands for the bioremediation of agricultural runoff waters contaminated with pesticides has great potential. The structure and dynamics of the bacterial community in such system, and its function with respect to contaminant removal, remain to be investigated in detail. Materials and methods: The bacterial component of sediment collected from a vineyard stormwater basin (in Rouffach, France) that pooled incoming runoff water containing pesticide and copper, was investigated by enumeration of cultivable bacteria on sediment extract solid medium and by liquid enrichment cultures from sediment, in the presence of glyphosate, diuron, 3,4-dichloroaniline and copper. Its structure, as a function of sediment location, depth, rhizospheric status and the presence of contaminants, was studied by temporal temperature gradient electrophoresis. Cultures obtained by enrichment were screened by RISA and RFLP and the ability of different cultures for contaminant mitigation was evaluated by the chrome azurol S method (copper complexation) and HPLC (glyphosate, diuron and 3,4-dichloroaniline degradation). The composition of the mixed cultures with the highest potential with regard to degradation of glyphosate, diuron and 3,4-dichloroaniline and copper complexation were evaluated by sequence analysis of cloned PCR-amplified 16S rRNA gene fragments obtained from enrichment cultures. Results and discussion: The bacterial community structure of sediment showed differences depending on sampling location, sediment depth and sampling date. Spiking with a cocktail of concentrated glyphosate, diuron, 3,4-dichloroaniline and copper altered the bacterial community structure, but rhizospheric samples were less affected. RISA and RFLP analysis differentiated 98 distinct cultures, 28 of which were able to complex copper, and three, 35 and seven were able to degrade glyphosate, diuron and 3,4-dichloroaniline, respectively. Sequencing of cloned 16S rRNA gene fragments amplified from faster-growing rhizospheric mixed culture 106, selected as the most efficient in complexing copper and degrading glyphosate, diuron and 3,4-dichloroaniline, showed that it consisted of Arthrobacter sp., Pseudomonas putida, Delftia acidovorans and Brevundimonas sp. strains. Conclusions: The investigated stormwater basin contains bacterial populations specifically adapted to the transformation of diuron, 3,4-dichloroaniline (3,4-DCA) and glyphosate, and to copper complexation. The mixed culture 106 complexed high amounts of copper ions and degraded glyphosate and diuron without accumulation of the major diuron metabolite 3,4-DCA. Our results also suggest that plants may help to stabilise bacterial-driven pesticide mitigation in environments subject to variable conditions such as stormwater basins

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“…The use of Cucontaining pesticides in agriculture may result in the transfer of substantial amounts of Cu to arable soils. Vineyard topography and intense rainfalls may cause pesticide losses by surface runoff and leaching, potentially resulting in surface and groundwater contamination (Barrett and McBride 2006;Huguenot et al 2010). In mining areas, soils may have high concentrations of ME either due to the mining activities, incorrect disposal of mine waste and flotation residue, or to the bedrock itself (Nimirciag, 2012).…”

Section: Introductionmentioning

confidence: 99%

Copper dynamics under alternating redox conditions is influenced by soil properties and contamination source

Balint

Said-Pullicino

Ajmone-Marsan

2015

Journal of Contaminant Hydrology

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Understanding the effect of soil redox conditions on contaminant dynamics is of significant importance for evaluating their lability, mobility and potential transfer to other environmental compartments. Under changing redox conditions, soil properties and constituents such as Fe and Mn (hydr)oxides and organic matter (OM) may influence the behaviour of associated metallic elements (ME). In this work, the redox-driven release and redistribution of Cu between different soil pools was studied in three soils having different contamination sources. This was achieved by subjecting soil columns to a series of alternating reducing and oxidizing cycles under non-limiting C conditions, and assessing their influence on soil pore water, leachate and solid phase composition. Results showed that, in all soils, alternating redox conditions led to an increase in the distribution of Cu in the more labile fractions, consequently enhancing is susceptibility to loss. This was generally linked to the redox-driven cycling of Fe, Mn and dissolved organic matter (DOM). In fact, results suggested that the reductive dissolution of Fe and Mn (hydr)oxides and subsequent reprecipitation as poorly-ordered phases under oxic conditions, contributed to the release and mobilization of Cu and/or Cu-containing organometallic complexes. However, the behaviour of Cu, as well as the mechanisms controlling Cu release and loss with redox cycling, were influenced by both soil properties (e.g. pH, contents of easily reducible Fe and Mn (hydr)oxides) and source of Cu contamination.

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Selection of low cost materials for the sorption of copper and herbicides as single or mixed compounds in increasing complexity matrices

Cited by 29 publications

References 53 publications

Pesticide contamination interception strategy and removal efficiency in forest buffer and artificial wetland in a tile-drained agricultural watershed

Pesticide contamination interception strategy and removal efficiency in forest buffer and artificial wetland in a tile-drained agricultural watershed

Herbicide degradation and copper complexation by bacterial mixed cultures from a vineyard stormwater basin

Copper dynamics under alternating redox conditions is influenced by soil properties and contamination source

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