Inventory of heavy metals and organic micropollutants In an urban water catchment drainage basin

Sarmani, Sukiman; Abdullah, Md. Pauzi; Baba, Ibrahim; Majid, Amran Abd.

doi:10.1007/bf00026255

Cited by 13 publications

(7 citation statements)

References 10 publications

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“…Because sediments play a major role in the transport and storage of contaminants, they are frequently used to identify sources of toxicants, determine dispersion pathways, and locate contaminant sinks in aquatic systems (Mann and Lintern, 1983;Rule, 1986;Sarmani et al, 1992;Murray, 1996).…”

Section: Discussionmentioning

confidence: 99%

The distribution of heavy metals in the Sidi Moussa lagoon sediments (Atlantic Moroccan Coast)

Maanan

Zourarah

Carruesco

et al. 2004

Journal of African Earth Sciences

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Section: Discussionmentioning

confidence: 99%

The distribution of heavy metals in the Sidi Moussa lagoon sediments (Atlantic Moroccan Coast)

Maanan

Zourarah

Carruesco

et al. 2004

Journal of African Earth Sciences

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“…Contaminants are not necessarily fixed permanently by the sediments, and under changing environmental conditions they may be released into the water column by various processes of remobilization [12]. The marked tendency for heavy metals towards solid and water phase partitioning and the ability of sediments to integrate longterm information makes the sediments attractive for assessing the impact of industry and urban development on the fluvial environment [13,14]. Sediment contamination is indeed a worldwide problem, especially in industrialized countries, even though the response to this problem varies in terms of jurisdictions [15].…”

Section: Introductionmentioning

confidence: 99%

Chemical and Microbiological Parameters in Fresh Water and Sediments to Evaluate the Pollution Risk in the Reno River Watershed (North Italy)

Ferronato¹,

Modesto²,

Stefanini³

et al. 2013

JWARP

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The European Water Framework (WFD) establishes a framework for the protection and the monitoring condition of all natural superficial waters of the member States. The Italian Legislative Decree n. 156/2006 implements the WFD establishing a monitoring system which foresees a detailed detection of several physical, chemical and microbiological parameters in order to assess the qualitative status of the water body. This study reports the freshwater quality in the Reno river basin (North Italy) from 2003 to 2011. The Reno superficial water was classified as "good" in the mountain stations and at the closed basin while in all the other stations of the Po plain the quality was from "mediocre" to "poor". The decrease of water quality was due to the flowing of artificial canals that collect discharges the wastewater of sewage treatment plants, drainage and run-off from the urban, industrial and agricultural lands. In spring-summer 2011, characterized by severe drought, a study on the distribution of pollutants and nutrients in water of the Reno river and its tributaries highlight the impact of highway (Via Emilia) that closes the mountain basin of water courses. Along this street cities and industrial and craft have developed, increasing discharges of pollutants and nutrients in rivers. An increase of metals and nutrients was found from upstream to downstream, furthermore the concentration of the microbiological faecal indicators were two to three times higher than those determined in the water upstream of urban/industrial settlements. The thresholds of Italian Law for Hg and Pb were exceeding in all most rivers. The sediments analysis was also performed because they can be considered a sink and/or source for pollutants. In many monitoring sites the metals concentrations was higher than the thresholds of Italia Low (data not shown), but the availability of these metals was tested with mixtures of different strength extracting (EDTA, DTPA and water). The coefficient of partition solid/water (Kd) was calculated to evaluate the metals affinity to be in the aqueous phase and it increase as following Cr > Mn > Ni > Pb > Zn > Cu > Cd.

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“…In aquatic environment, heavy metals are subjected to various processes of adsorption/desorption and immobilization/remobilization between the water column and the bottom deposits (Sarmani et al 1992). In many cases, sediments can act as sink of pollutants and retain contaminants by ion exchange phenomena and adsorption on clay minerals, amorphous materials or organic substances.…”

Section: Introductionmentioning

confidence: 99%

Vermiculite bio-barriers for Cu and Zn remediation: an eco-friendly approach for freshwater and sediments protection

Ferronato

Silva

Costa

et al. 2016

Int. J. Environ. Sci. Technol.

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The increase in heavy metal contamination in freshwater systems causes serious environmental problems in most industrialized countries, and the effort to find ecofriendly techniques for reducing water and sediment contamination is fundamental for environmental protection. Permeable barriers made of natural clays can be used as low-cost and eco-friendly materials for adsorbing heavy metals from water solution and thus reducing the sediment contamination. This study discusses the application of permeable barriers made of vermiculite clay for heavy metals remediation at the interface between water and sediments and investigates the possibility to increase their efficiency by loading the vermiculite surface with a microbial biofilm of Pseudomonas putida, which is well known to be a heavy metal accumulator. Some batch assays were performed to verify the uptake capacity of two systems and their adsorption kinetics, and the results indicated that the vermiculite bio-barrier system had a higher removal capacity than the vermiculite barrier (?34.4 and 22.8 % for Cu and Zn, respectively). Moreover, the presence of P. putida biofilm strongly contributed to fasten the kinetics of metals adsorption onto vermiculite sheets. In open-system conditions, the presence of a vermiculite barrier at the interface between water and sediment could reduce the sediment contamination up to 20 and 23 % for Cu and Zn, respectively, highlighting the efficiency of these eco-friendly materials for environmental applications. Nevertheless, the contribution of microbial biofilm in open-system setup should be optimized, and some important considerations about biofilm attachment in a continuous-flow system have been discussed.

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Inventory of heavy metals and organic micropollutants In an urban water catchment drainage basin

Cited by 13 publications

References 10 publications

The distribution of heavy metals in the Sidi Moussa lagoon sediments (Atlantic Moroccan Coast)

The distribution of heavy metals in the Sidi Moussa lagoon sediments (Atlantic Moroccan Coast)

Chemical and Microbiological Parameters in Fresh Water and Sediments to Evaluate the Pollution Risk in the Reno River Watershed (North Italy)

Vermiculite bio-barriers for Cu and Zn remediation: an eco-friendly approach for freshwater and sediments protection

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