Preface

Bradl, H.

doi:10.1016/s1573-4285(05)80019-5

Cited by 55 publications

(51 citation statements)

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“…The limited presence of Nitrates is also quite evident even though these areas are subject to intensive agricultural activities. The most likely origin of Iron and Manganese in groundwater is associated with the presence of these metals in the overlying soils, where the two metals are often present in the form of oxides and hydroxides (Bradl, 2005;Cornell & Schwertmann, 2006). Under favourable physico-chemical conditions (ORP/pH), these two metals leach from the soil towards the underlying aquifer (Brennan & Lindsay, 1998;Schwab & Lindsay, 1983).…”

Section: Hydrochemical and Environmental Characteristics Based On Thementioning

confidence: 99%

Ring maps applied to hydrogeological and environmental studies in alluvial aquifers, central Italy

2014

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Analysis of hydrogeological data of aquifers requires assessment of multiple variables and this is difficult to visualise in a single map with commonly used techniques. Ring maps are presented in this paper as a useful option to overcome this limitation.Four alluvial aquifers from Central Italy were assessed and are presented as case studies, evaluating the hydrogeological setting, the groundwater chemistry and the distribution of representative contaminants (Boron, Iron, Manganese and Nitrates). The final result is a graphical representation showing the ring maps, which simultaneously depict 12 numerical variables and two other variables: the geographical position and the main lithological properties of the aquifers.The research indicates that coastal alluvial aquifers show higher contamination when compared to the intramontane alluvial aquifers. Boron is exclusively present in the coastal alluvial aquifers where maximum concentrations are associated with the uprising of deeper saline groundwater with a chloride-sodium chemistry. Iron and manganese are generally associated and their presence is inversely correlated to that of nitrates. The presence of Nitrates is less common in the intramontane aquifers.The ring maps presented in this paper have been effectively used as a geovisualisation tool for multivariate hydrogeological and environmental data. The technique simultaneously and clearly shows several variables in one single graphical representation.

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Section: Hydrochemical and Environmental Characteristics Based On Thementioning

confidence: 99%

Ring maps applied to hydrogeological and environmental studies in alluvial aquifers, central Italy

2014

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“…Environmental contamination can also occur through metal corrosion, atmospheric deposition, soil erosion of metal ions and leaching of heavy metals, sediment re-suspension and metal evaporation from water resources to soil and ground water (Nriagu 1989). Natural phenomena such as weathering and volcanic eruption have also been reported to significantly contribute to heavy metal pollution (Fergusson 1990 andBradl 2002). Industrial sources include metal processing in refineries, coal burning in power plants, petroleum combustion, nuclear power stations and high tension lines, plastics, textiles, microelectronics, wood preservation and paper processing plants (Pacyna 1996).…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contents in soils affected by industrial activities in a southern district of Bangladesh

Begum

Huq

2016

Bangladesh J. Sci. Res.

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A research was done to focus on the level of heavy metal pollution by three point sources in Barisal, a southern district of Bangladesh. Soils were collected from four distinct distances (100 m, 200 m, 400 m and 600 m from the point of discharge) of three different industrial sites, namely textile, cement and medicine industry. Maximum build-up of heavy metals was found in the vicinity of textile industry, while the minimum was observed in soils of medicine industry. Cu, Cr, Cd, Mn and Ni were found in the highest concentrations in textile industry, while As, Pb and Zn were found in the highest content near the cement industry. Negative correlation values indicate that pollution levels decrease with the increasing distance from the pollution sites.

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“…The most bioavailable sludge-borne metal is Zn, followed by Cd and Ni, Cr and Pb uptake by plants was observed to be insignificant (Bradl 2005;Hossain et al 2011). However (bio)char is able to very effectively bind a number of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Heavy Metals Leaching From (Bio)char Obtained From Industrial Sewage Sludge / Iš Gamybinio Nuotekų Dumblo Pagamintos Bioanglies Sunkiųjų Metalų Išplovimo Įvertinimas

Pečkytė

Baltrėnaitė

2015

Mokslas – Lietuvos Ateitis

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Abstract. Biochar can be produced from many various feedstock including biomass residues such as straw, branches, sawdust and other agricultural and forestry waste. One of the alternatives is to obtain biochar from industrial sewage sludge, however, the use of such a product could be limited due to high quantities of heavy metals in the biochar as a product. Total concentration of heavy metals provides only limited information on the behavior of heavy metals, therefore, batch leaching and up-flow percolation leaching tests were applied to study the leaching of heavy metals (Cd, Pb, Cr, Ni, Zn, Cu) from (bio)char produced from two types of sewage sludge: from paper mill and leather industries.

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Preface

Cited by 55 publications

References 0 publications

Ring maps applied to hydrogeological and environmental studies in alluvial aquifers, central Italy

Ring maps applied to hydrogeological and environmental studies in alluvial aquifers, central Italy

Heavy metal contents in soils affected by industrial activities in a southern district of Bangladesh

Assessment of Heavy Metals Leaching From (Bio)char Obtained From Industrial Sewage Sludge / Iš Gamybinio Nuotekų Dumblo Pagamintos Bioanglies Sunkiųjų Metalų Išplovimo Įvertinimas

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