The use of constructed wetlands for removal of pesticides from agricultural runoff and drainage: A review

Vymazal, Jan; Březinová, Tereza

doi:10.1016/j.envint.2014.10.026

Cited by 388 publications

(173 citation statements)

References 134 publications

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“…The water solubility, soil organic carbon-water partitioning coefficient (K oc ) and octanol/water partition coefficient (K ow ) of chlorpyrifos are 1.4 mg L -1 , 4.7 (log) and 4981 cm 3 g -1 respectively (Dores & De-Lamonica-Freire, 2001). Such characteristics make the organophosphate chlorpyrifos a pesticide with high retention in the constructed wetlands, as suggested by Vymazal & Březinová (2015), that pesticides with high K oc value (log K oc > 3.0) has high removal in CW.…”

Section: Resultsmentioning

confidence: 99%

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Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Souza

Borges

Matos

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThe objective of this study was to evaluate the remediation of water containing the insecticide chlorpyrifos by using constructed wetlands (CW) cultivated with Polygonum punctatum, Cynodon spp. and Mentha aquatica, operated under different hydraulic retention times: 24, 48, 96, 144 and 192 h. The system efficiency was based on reduction of the initial concentration of chlorpyrifos and toxicity of the contaminated water. The results showed that constructed wetlands are an excellent alternative for remediation of the insecticide chlorpyrifos in aqueous medium. It was observed that the average overall removal efficiency of the insecticide was 98.6%, and in the first hydraulic retention time, 24 h, chlorpyrifos was removed to levels below the detection limit in all CW. This result is mainly attributed to adsorption and microbial degradation. For the qualitative standard acute toxicity tests with Daphnia similis, for most samples there was a reduction in toxicity greater than 80%. It was reported that the ecotoxicological tests with the effluents of the constructed wetland are a good option as an indicator of the effectiveness of treatments and a promising alternative to complement the physical and chemical analyses.Remoção do inseticida clorpirifós em sistemas alagados construídos cultivados com diferentes espécies vegetais R E S U M O Objetivou-se neste trabalho avaliar a remediação de água contendo o inseticida clorpirifós, por meio de sistemas alagados construídos (SAC) cultivados com as espécies Polygonum punctatum, Cynodon spp. e Mentha aquatica operados sob diferentes tempos de retenção hidráulica: 24, 48, 96, 144 e 192 h. A eficiência do sistema foi baseada na redução da concentração inicial do clorpirifós e toxicidade da água contaminada. Os resultados mostraram que os sistemas alagados construídos são uma excelente alternativa na biorremediação do inseticida clorpirifós no meio aquoso. Observou-se média geral de eficiência na remoção do inseticida de 98,6%, sendo que no primeiro tempo de retenção hidráulica, 24 h, houve remoção do clorpirifós para valores inferiores ao limite detecção para todos os SAC. Tal resultado é atribuído principalmente aos processos de adsorção e degradação microbiana. Para os ensaios padronizados qualitativos de toxicidade aguda com Daphnia similis, para a maioria das amostras observou-se a redução de toxicidade acima de 80%. Constatou-se que os testes ecotoxicológicos com os efluentes dos sistemas alagados construídos estudados são uma boa opção como indicativo da eficiência dos tratamentos e uma promissora alternativa na complementação de análises físicas e químicas.

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Section: Resultsmentioning

confidence: 99%

“…In general, when compared to other constructed wetland configurations, such as surface flow or vertical flow system, the horizontal subsurface flow system promotes greater efficiency (Vymazal & Březinová, 2015).…”

Section: Resultsmentioning

confidence: 99%

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Souza

Borges

Matos

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…Adsorption to soil particles is also related to soil/water partition coefficient of the pesticides. The removal of pesticides generally increases with increasing value of this coefficient [39].…”

Section: Witnessmentioning

confidence: 99%

Monitoring Aclonifen Remediation in Soil with a Laboratory-Scale Research

Ergüven¹,

Bayhan²,

Demir³

et al. 2016

Journal of Chemistry

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Aclonifen was used as the most preferable type of herbicide which is used in sunflower farming in the Thrace Region. Bacteria and fungi were isolated from the soil samples taken from the Thrace Region, and a mixed culture was prepared from equal volumes (10 8 CFU/mL) of liquid cultures of microorganisms. Including the witness sample, five different setups were prepared, to which Aclonifen, with a concentration of 1900 g/L, was added. Each unit was diluted with distilled water for six weeks. The water filtered at this stage was measured for chemical oxygen demand (COD), biochemical oxygen demand, total organic carbon (TOC), and Aclonifen. Additionally, pH and dissolved oxygen measurement was performed. According to the results of the study, the highest bioremediation was observed in the soil sample to which 10 mL of mixed culture of microorganisms was added and Aclonifen, COD, BOD 5 , and TOC remediation was observed as 93.2%, 97.8%, 98.8%, and 98.7%, respectively.

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“…Hence, the achieved and reported removal rates in the literature mostly represent the outcomes obtained from wetlands working under controlled conditions. On the contrary, CWs treating agricultural runoff have to deal with different surface flows and pollutant concentrations of different sources [15,16,21,25,36,45,46]. Therefore, the determined nitrate removal rates could be considered as a good guide for estimating the surface area needed, but validation in the field will increase the certainty of the predicted values.…”

Section: Nitrogen Removal Capacitymentioning

confidence: 99%

“…Looking at the available land in the surroundings of the study area and considering the tested studies in the field [16,23,35,36], three different designs, as shown in Figure 2, were proposed. The first option (a), suggests that artificial wetlands could be implemented aligning with the stream by adapting river banks and broadening the stream course to the extent that the majority of the area used would be effective for nitrogen removal.…”

Section: Integrated Constructed Wetlands Dimensioningmentioning

confidence: 99%

Assessing the Integration of Wetlands along Small European Waterways to Address Diffuse Nitrate Pollution

Donoso

Gobeyn

Boets

et al. 2017

Water

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Nitrate concentrations in numerous European fresh watercourses have decreased due to end-of-pipe measures towards manure and fertilization management, but fail to meet the environmental objectives. The implementation of complementary measures to attenuate diffuse nitrate pollution in densely populated regions characterised by limited available area has been barely studied. To tackle this issue, this study evaluates the feasibility of integrating Constructed Wetlands (CWs) along waterways as a promising tool to facilitate compliance with the nitrate regulations. The aim is to calculate the required area of land alongside a specific watercourse to integrate CWs to reduce nitrate concentrations consistently below the 11.3 and 5.65 mgNO 3 -N/L levels, according to the Nitrates Directive and the Flemish Environmental Regulations. Nitrate-nitrogen removal efficiencies achieved at case study CWs were compared and validated with reported values to estimate the needed wetland areas. In addition, the removal efficiencies and areas needed to meet the standards were calculated via the kinetic model by Kadlec and Knight. The predicted areas by both methods indicated that CWs of 1.4-3.4 ha could be implemented in certain regions, such as Flanders (Belgium), with restricted available land. To conclude, three designs for ICWs (Integrated Constructed Wetlands) are proposed and evaluated, assessing the feasibility of their implementation.

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The use of constructed wetlands for removal of pesticides from agricultural runoff and drainage: A review

Cited by 388 publications

References 134 publications

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Monitoring Aclonifen Remediation in Soil with a Laboratory-Scale Research

Assessing the Integration of Wetlands along Small European Waterways to Address Diffuse Nitrate Pollution

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