Biomaterial Database

Arsenic and heavy metals in leachate from a real landfill and a laboratory landfill. 2000

E Beccaloni, and P Borrello, and L Musmeci, and E Stacul

Laboratorio di Igiene Ambientale, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Roma.

A preliminary study, based particularly on Arsenic and some heavy metals determination (Cd, Cr, Hg and Pb) in three leachate tipologies produced from municipal waste landfill plant, lab-scale aerobic landfill, lab-scale anerobic landfill was undertaken. Leachate was collected and analysed monthly; samples were homogenized and then, all heavy metals were determined after mineralization, except for Hg, determined before mineralization, due to his high volatility. In all samples pH was measured. In general we can say that low concentrations of the elements analyzed were found in all kinds of landfills considered; in particular, in the lab-scale anaerobic reactors, where low pH values have been found, we have a more considerable mobilization of As and the others heavy metals, moreover due to the behaviour of these elements.

UI	MeSH Term	Description	Entries
D008628	Mercury	A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
D012037	Refuse Disposal	The discarding or destroying of garbage, sewage, or other waste matter or its transformation into something useful or innocuous.	Waste Disposal, Solid,Disposal, Refuse,Disposal, Solid Waste,Disposals, Refuse,Disposals, Solid Waste,Refuse Disposals,Solid Waste Disposal,Solid Waste Disposals,Waste Disposals, Solid
D006256	Hazardous Waste	Waste products which threaten life, health, or the environment when improperly treated, stored, transported, disposed of, or otherwise managed.	Hazardous Wastes,Waste, Hazardous,Wastes, Hazardous
D006863	Hydrogen-Ion Concentration	The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH	pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000332	Aerobiosis	Life or metabolic reactions occurring in an environment containing oxygen.	Aerobioses
D000693	Anaerobiosis	The complete absence, or (loosely) the paucity, of gaseous or dissolved elemental oxygen in a given place or environment. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Anaerobic Metabolism,Anaerobic Metabolisms,Anaerobioses,Metabolism, Anaerobic,Metabolisms, Anaerobic
D001151	Arsenic	A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed)	Arsenic-75,Arsenic 75
D014876	Water Pollution	Contamination of bodies of water (such as LAKES; RIVERS; SEAS; and GROUNDWATER.)	Thermal Water Pollution,Water Pollution, Thermal,Pollution, Thermal Water,Pollution, Water,Pollutions, Thermal Water,Pollutions, Water,Thermal Water Pollutions,Water Pollutions,Water Pollutions, Thermal
D018505	Waste Management	Disposal, processing, controlling, recycling, and reusing the solid, liquid, and gaseous wastes of plants, animals, humans, and other organisms. It includes control within a closed ecological system to maintain a habitable environment.	Management, Waste,Managements, Waste,Waste Managements
D019149	Bioreactors	Tools or devices for generating products using the synthetic or chemical conversion capacity of a biological system. They can be classical fermentors, cell culture perfusion systems, or enzyme bioreactors. For production of proteins or enzymes, recombinant microorganisms such as bacteria, mammalian cells, or insect or plant cells are usually chosen.	Fermentors,Bioreactor,Fermentor