Resultados de búsqueda - Contaminated sediments.

Speciation of metals in contaminated sediments in the Kalmar County, Sweden : an initial approach toward sediment mining por Fathollahzadeh, Homayoun

“…In the present study, mining of highly contaminated sediments to recover valuable elements such as metals and nutrients is proposed as sustainable approach, both through enhancing resilience of ecosystems and remediation, beside probable turnovers. …”

Sediment por Mateo-Sagasta, Javier, Albers, J.

Materias: “…sediment pollution…”
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Spatial distribution of persistent organic pollutants (POPs) in sediments contaminated by fiber material from pulp and paper industries por Dupaul, Gabriel

“…The aim of this study was to determine the levels of POPs in fiberbank sediments from two known contaminated sites (Väja and Sandviken) located in the Ångermanälven estuary in the county of Västernorrland, Sweden. …”

Ecological risk assessment of pesticides in sediments of Pampean streams, Argentina por Fernández San Juan, M.R., Lavarías, S.M.L., Aparicio, Virginia Carolina, Larsen, K.E., Colman Lerner, J.E., Cortelezzi, A.

Materias: “…Sediment…”
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Sediment and nutrient lost by runoff from two watersheds, Digga district in Blue Nile basin, Ethiopia por Wudneh, A., Erkossa, Teklu, Devi, P.

Materias: “…sedimentation…”
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Vertical distribution of heavy metals in soil profile in a seasonally waterlogging agriculture field in eastern Ganges Basin por Natarajan, Rajmohan, Prathapar, Sanmugam A., Jayaprakash, M., Nagarajan, R.

Materias: “…sediment…”
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Spreading of persistent organic pollutants from fiber bank sediments por Vogel, Lisa

“…Contaminants were extracted using Soxhlet(sediment), shaking with acetone:n-hexane (POM) and cold column extraction(biota). …”

Agricultural use of sediments from the Albufera Lake (eastern Spain) por Canet, Rodolfo, Chaves, C., Pomares, Fernando, Albiach, Remedios

“…Dredging of the Albufera Lake, a very important natural area of eastern Spain, has been proposed to remediate the silting process, but a very large amount of sediments would be generated. To assess the feasibility of applying these to the sandy agricultural soils surrounding the lake, three rates (180, 360 and 720 t/ha) of four different sediments, corresponding to different degrees and sources of contamination, were tested by mixing with a soil obtained from the area of potential application. …”
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Sediment toxicity in River Kolbäcksån – toxicity tests with Chironomus riparius and Gammarus pulex por Öhlander, Jenny

“…Toxicity tests on profundal and littoral sediments from different lakes in the river system were made to investigate if the metal concentrations in the sediments had any effect on benthic fauna. …”
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Remediation of an arsenic-contaminated anoxic aquifer in hjältevad with zerovalent iron por Leicht, Kathrin

“…Batch experiments were conducted under anoxic conditions by mixing sorbents with contaminated sediment and artificial groundwater, mimicking the conditions in the natural aquifer. …”
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Solubility of arsenic in untreated and ZVI-treated contaminated aquifer material por Davies, Oscar R.

“…The samples were collected in an anoxic aquifer within a CCA (Chromated copper arsenate) -contaminated area in Hjältevad. First, experiments were carried out to determine if phosphate and oxalate extractions are a good method in determining how As is bound in untreated and ZVI-treated sediment samples. …”

Dredging and sediment discharge in a river with floodplain. Physicochemical and microbiological effects in Paraná river por Gonzalez, Maria Josefina, Gonzalez, Stella Maris, Paira, Aldo Raul, Collins, Pablo

“…The variables measured in sediment and water samples were limnological parameters (e.g. conductivity, pH, dissolved oxygen, among others), heavy metal concentration, presence of biocides, hydrocarbon molecules, nutrients, sediment granulometry, Escherichia coli, Enterococcus, total coliforms, and heterotrophic bacteria. …”
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Safety assessment on microbial and heavy metal concentration in clarias gariepinus (African catfish) cultured in treated wastewater pond in Kumasi, Ghana por Mark, Y.A., Amoah, Philip, Nelson, A.W., Muspratt, A., Aikins, S.

Materias: “…biological contamination…”
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Using on-farm sedimentation ponds to improve microbial quality of irrigation water in urban vegetable farming in Ghana por Keraita, Bernard N., Drechsel, Pay, Konradsen, Flemming

“…For optimal pathogen removal, better pond designs, farmers’ training on collection of water with minimal disturbance and any other means to enhance sedimentation and pathogen die-off can be essential components of a multiple-barrier approach complementing farm-based measures like simple filtration techniques, better irrigation methods and post-harvest contamination.…”
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Using on-farm sedimentation ponds to improve microbial quality of irrigation water in urban vegetable farming in Ghana por Keraita, Bernard N., Drechsel, Pay, Konradsen, Flemming

“…For optimal pathogen removal, better pond designs, farmers' training on collection of water with minimal disturbance and any other means to enhance sedimentation and pathogen die-off can be essential components of a multiple- barrier approach complementing farm-based measures like simple filtration techniques, better irrigation methods and post-harvest contamination.…”
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Ecological and Human Health Risk Assessment of Heavy Metals in Mining-Affected River Sediments in the Peruvian Central Highlands por Custodio, María, Pizarro Carcausto, Samuel Edwin, Huarcaya, Javier, Ortega Quispe, Kevin Abner, Ccopi Trucios, Dennis

“…This study evaluated the levels of contamination and the associated ecological and carcinogenic risks in the sediments of the Cunas River, located in the central highlands of Peru. …”
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Enzyme dynamics in contaminated paddy soils under different cropping patterns (NE Italy) por Nadimi-Goki, Mandana, Bini, Claudio, Wahsha, Mohammad, Kato, Yoichiro, Fornasier, Flavio

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Key factors determining biochar sorption capacity for metal contaminants: a literature synthesis por Thomas, Evert, Borchard, Nils, Sarmiento, Christian, Atkinson, Rachel, Ladd, Brenton

“…This review demonstrates clearly that multiple parameters during the preparation process influence the effectiveness of biochar to immobilize metal contaminants. Future research that focuses on mechanisms and the underlying factors for the correlations observed should allow the development of biochar formulations that are even more effective at immobilizing metal contaminants in soils and sediments.…”
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Exploring microbial diversity, antibiotic resistance, and their environmental drivers in urban and peri-urban riverbed sediments of sub-tropical river basins por Pandey, N. K., Simon, M., Vishwakarma, R. K., Sen, S., Joshi, H., Yadav, Shweta, Mateo-Sagasta, Javier, Jampani, Mahesh, Sikka, Alok, Hazra, S.

“…Results highlight that heavily urbanized sub-basins sediments carry more contaminants and a high load of antibiotic-resistant bacteria, ESKAPE pathogen genera, and Enterobacterales in comparison to periurban river basins. …”
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Metals, pesticides, and emerging contaminants on water bodies from agricultural areas and the effects on a native amphibian por Peluso, Julieta, Martínez Chehda, Agostina, Olivelli, Melisa Soledad, Ivanic, Federico Martín, Pérez Coll, Cristina Silvia, Gonzalez, Florencia, Valenzuela, Lautaro, Rojas, Dante Emanuel, Cristos, Diego Sebastian, Butler, Matías, Candal, Roberto Jorge, Aronzon, Carolina Mariel

“…Physicochemical parameters were measured in situ (in water) and in laboratory (in water and sediment samples: metals, pesticides, ivermectin and oxytetracycline). …”
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