نتایج جستجو برای: leachates

تعداد نتایج: 942  

Journal: :Environmental Health Perspectives 1978
R I Van Hook

To evaluate the impact of hazardous chemicals in solid wastes on man and other organisms, it is necessary to have information about amounts of chemical present, extent of exposure, and chemical toxicity. This paper addresses the question of organism exposure by considering the major physical and biological transport pathways and the physicochemical and biochemical transformations that may occur...

2006
R. J. Matthews M. K. Winson

There is an ongoing need to treat leachates from landfills using approaches that avoid expensive installation and operating costs. Faced with such a problem, Powys County Council (Wales, UK) developed a treatment system based on practical experience. Leachate was re-circulated through aeration towers containing a biofilm supported on plastic media before being polished in reed/filter beds. Inve...

Journal: :Water research 2013
Yuliya Kalmykova Karin Björklund Ann-Margret Strömvall Lena Blom

Partitioning of organic pollutants is essential to their fate, mobility and removal from water and soil. To study the partitioning behavior of selected alkylphenols, bisphenol A, phthalates and polycyclic aromatic hydrocarbons (PAHs), a method for separating the truly dissolved and colloidal phase of organic pollutants was developed, verified and applied to samples of landfill leachate and stor...

2013
Anna Malara Patryk Oleszczuk

The objective of the study was to determine the leachates toxicity from sewage sludge-amended soils (sandy and loamy). Samples originated from a plot experiment realized over a period of 29 months. Two types of soil were fertilized with sewage sludges at the dose of 3 % (90 t/ha). Soil samples were taken after 0, 7, 17, and 29 months from the application of sewage sludges. Leachates were obtain...

2009
G. Quitté

Introduction: The numerous nucleosynthetic isotopic anomalies found in refractory inclusions, in presolar grains, and in special phases carried by chondrites suggest that the matter constituting the solar system results from a mixing between different sources. Recently, Ni nucleosynthetic anomalies have been found in various meteorites, including iron meteorites, ureilites, chondrites [e.g. 1-3...

Journal: :Environmental biosafety research 2006
Alexei Melnitchouck Peter Leinweber Inge Broer Kai-Uwe Eckhardt

The objectives of the present study were (1) to investigate the qualitative composition of rhizodeposits leached from soils cropped with non-transgenic and genetically modified (GM) potatoes, and disclose if there were GM-specific modifications in potato rhizodeposition, and (2) to compare these results with conventional bulk parameters of microbial activity in soil. We have raised potatoes fro...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2005
Katia Boven John Knight Fred Bader Jérome Rossert Kai-Uwe Eckardt Nicole Casadevall

A substantial increase in the incidence of pure red cell aplasia (PRCA) associated with recombinant human erythropoietin (epoetin) treatment occurred in 1998. The upsurge of antibody-mediated PRCA was almost exclusively associated with chronic kidney disease patients who received subcutaneous epoetin therapy and the formulation of epoetin-alpha distributed outside the USA (EPREX/ERYPO). A syste...

Journal: :Journal of Materials Research and Technology 2019

2002
Z. YU R. J. ZASOSKI

Dissolved organic nitrogen (DON) may play an important role in plant nutrition and nitrogen fluxes in forest ecosystems. In spite of the apparent importance of DON, there is a paucity of information concerning its chemical composition. However, it is exactly this chemical characterization that is required to understand the importance of DON in ecosystem processes. The primary objective of this ...

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