Simultaneous removal of chlorpyrifos and dissolved organic carbon using horizontal sub-surface flow pilot wetlands

Agudelo, Ruth Marina; Peñuela, Gustavo A.; Aguirre-Ramírez, Néstor Jaime; Morató, Jordi; Jaramillo, Mónica Lucía

doi:10.1016/j.ecoleng.2010.06.019

Cited by 48 publications

(19 citation statements)

References 52 publications

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“…Although no statistical differences among treatments were observed, there is high efficiency of pesticide removal, with overall average of 98.6% and individual averages ranging from 93 to greater than 99% for removal of chlorpyrifos by the constructed wetlands. Agudelo et al (2010), when studying the removal of chlorpyrifos in subsurface horizontal flow constructed wetland cultivated found similar results with reed (Phragmites australis). The authors found an average removal efficiency of 96.2% with values ranging from 92.2 to 97.4%, not addressing the influence of time on the results.…”

Section: Resultssupporting

confidence: 57%

“…The authors found an average removal efficiency of 96.2% with values ranging from 92.2 to 97.4%, not addressing the influence of time on the results. The high efficiency of the four constructed wetlands in this study may be attributed to the junction of construction factors, such as water depth, horizontal subsurface flow, particle size of the support medium, and the functions performed by each constituent system (support medium, plants, biofilm, radiation) (Agudelo et al, 2010), as well as the characteristics of the studied insecticide.…”

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: Resultssupporting

confidence: 57%

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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“…In particular, several studies showed successful applications of CWs to remove hardly biodegradable organic xenobiotic compounds such as pesticides and pharmaceuticals (Cheng et al, 2002;Matamoros et al, 2008Matamoros et al, , 2012aDordio et al, 2009bDordio et al, , 2010Avila et al, 2010;Hijosa-Valsero et al, 2011;Agudelo et al, 2012;Warsaw et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment

Dordio

Carvalho

2013

Science of The Total Environment

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. H I G H L I G H T S• CW with LECA substrate and Phragmites plants tested with agricultural wastewaters.• High removals of TSS, COD, NH 4 -N, polyphenols, a pharmaceutical and a pesticide.• Contact time of wastewaters with beds ranged from 3 to 9days in batch conditions.• Promising results suggest more studies in full-scale and more realistic conditions. Constructed wetlands (CWs) are receiving a renewed attention as a viable phytotechnology for treating agricultural wastewaters and for the removal of more specific pollutants, in particular recalcitrant ones. In this work, the performance of CW mesocosms using light expanded clay aggregates (LECA) as the bed's substrate and planted with Phragmites australis was investigated for treatment of olive mill wastewater (OMW), swine wastewater (SW) contaminated with oxytetracycline and water contaminated with herbicide MCPA (2-methyl-4-chlorophenoxyacetic acid). Both wastewaters (OMW and SW) initially presented high organic matter content and total suspended solids which were removed by the system with efficiencies higher than 80%. Removal of polyphenols in OMW and nitrogen compounds in SW also showed similar or higher efficiencies in comparison with other treatment systems reported in the literature. The antibiotic oxytetracycline was completely removed from SW within the assay period in unplanted LECA beds, but planted beds allowed a significantly faster removal. In regard to water contaminated with MCPA, the results showed that LECA has a large sorption capacity for this herbicide (removal efficiencies of 56-97%). In general, considerably higher pollutant removal efficiencies were obtained when plants were used (up to 28% higher). The results obtained are indicative that CWs with LECA as substrate may be an adequate option for agricultural wastewater treatment. a b s t r a c t a r t i c l e i n f o

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“…Los humedales construidos son sistemas complejos en los cuales intervienen procesos fisicoquímicos y biológicos [13,14]. En la mayoría de las publicaciones referentes al tema, se encuentra una amplia descripción de las ventajas de este tipo de sistemas enfatizando en su fácil mantenimiento y operación, sin embargo es importante tener en cuenta que para su óptimo funcionamiento se requiere de un buen diseño que permita la mejor hidráulica, la mejor interacción de los contaminantes con los consorcios microbianos y realizar un adecuado tratamiento primario.…”

Section: Discussionunclassified

“…Además Maja [22], describe que los humedales tienen la capacidad de actuar como un sistema tampón o buffer cuando se presenta un cambio de pH, por esta razón se decidió realizar el tratamiento del presente trabajo a pH menores de 6. Adicionalmente la disminución del OD en el sistema de humedales se presentó por la actividad microbiana (bacterias aerobias y facultativas) y por la formación de compuestos en la mineralización de la materia orgánica [14,23,24].…”

Section: Discussionunclassified

Optimización del tratamiento de aguas residuales de cultivos de flores usando humedales construidos de flujo subsuperficial horizontal

Jaramillo-Gallego

Agudelo-Cadavid

Mesa

2015

Rev. Fac. Nac. Salud Pública

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Simultaneous removal of chlorpyrifos and dissolved organic carbon using horizontal sub-surface flow pilot wetlands

Cited by 48 publications

References 52 publications

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Removal of chlorpyrifos insecticide in constructed wetlands with different plant species

Constructed wetlands with light expanded clay aggregates for agricultural wastewater treatment

Optimización del tratamiento de aguas residuales de cultivos de flores usando humedales construidos de flujo subsuperficial horizontal

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