hazardous metals Articles

  • Process-generated contaminants

    Overview: There is not currently a formal and universally recognised definition of a process-generated substance. Process-generated contaminants can be generated as emissions from combustion processes, abrasion and/or other processes that physically or chemically degrade or otherwise modify the starting material(s), e.g. degradation/composting of organic materials. Such ...

  • Contaminated soils and sludge treatment plant - Case Study

    Client: Ecosistem Group, Lamezia Terme (CZ) – Italy Challenge: to transform waste into product! The Client possesses a large plant for the treatment of products contaminated with hazardous substances and materials, recycling of recovered materials and disposal of non-recyclable waste, which is considered highly ...


    By Baioni Crushing Plants Spa

  • Eriez Sweep Away Hazardous Ferrous Metals

    Eriez Magnetics Europe Ltd has helped one of the largest scrap processors in Britain with the problem of damaging pieces of scrap metal affecting the day to day running of their yard.  The simple addition of a Magnetic Sweeper to the tow bar of one of their vehicles solved their problem with its high strength magnetic field picking up and holding nails, wire, welding rod ends, bolts, ferrous ...


    By Eriez Magnetics Europe Ltd

  • Identification and control of safety and health hazards in metal scrap recycling

    The audience for this guide is anyone who works in the metal scrap recycling industry—employers, employees, safety professionals, and industrial hygienists—should read this publication. This guide can help you identify and manage the hazards associated with exposure to various metals and processing chemicals and with related processes and equipment used in metal scrap recycling operations. Why is ...

  • Health Hazards of Welding

    At present, it is estimated that more than one million workers are employed as welders worldwide (Sundin, 1998), with more than three million performing welding intermittently as part of their work duties (Sferlazza and Beckett, 1991). Manual metal arc welding (MMAW) and flux core arc welding (FCAW) are two commonly used procedures in the construction industry and in numerous other industrial ...


    By Valahia University

  • Welding fume hazards

    Welding is tough work.  Not many who begin as welders retire as welders.  Eventually practically every welder develops cataracts.  Neck and back problems are also a foregone conclusion. There is also a long list of possible health problems depending on the type of welding.  Recently, the Occupational Health and Safety Administration (OSHA) identified hexavalent chromium as a ...

  • How to deal with hazardous waste?

    At present,hazardous waste is a facing an increasingly serious environmental problem .so the mainstream of industrial waste disposal methods: curing landfill, biochemical method, incineration disposal method. Other hazardous waste disposal methods include high temperature steam sterilization, microwave, plasma incineration, pyrolysis incineration, wet air ...


    By Harden Industries Ltd.

  • Recovery Of Metals Using Combustion

    Process industries generate a number of hazardous waste streams containing metals bound with organic components. These metals can be quite valuable if they can be separated from the organic components and recovered. Four projects are discussed. ...

  • The Hazards of Being in a Beauty Salon

    There are many health risks associated with the beauty industry due to the chemicals found in the products. We are all affected by these chemicals every time we go to the beauty salon. Many of the products found in these salons are classified as hazardous and extreme caution should be taken into consideration when using these products. They’re made for professional use only; therefore, ...

  • Management of Hazardous Wastes

    ' Management of hazardous waste is a growing concern in many countries. The long-term impacts and costs of improper disposal can be very high and the emphasis must be on prevention. A comprehensive management system should include (i) policies, institutions and effective regulations and (ii) adequate and acceptable disposal facilities (either public or private). This note outlines the key ...


    By The World Bank

  • Use of earthworms (Eisenia fetida) and vermicompost in the processing and safe management of hazardous solid and liquid wastes with high metal contents

    Two feasibility studies using the earthworm (Eisenia fetida) and vermicompost in the processing and remediation of solid and liquid wastes with high metal content are presented: vermicompost as adsorbent substrate for remediation of wastewaters contaminated with metals; earthworms for remediation of arsenic (As) and mercury (Hg) in landfill soils. The feasibility of vermicompost for the ...


    By Inderscience Publishers

  • Heavy Metals in Vehicles II

    Untitled Document Executive Summary Directive 2000/53/EC on End-of-Life Vehicles aims at the prevention of wastes from vehicles and at the reuse, recycling ...

  • Assessing natural contents of hazardous metals in soils by different analytical methods and its impact on environmental legislative measures

    A variety of analytical techniques are commonly used to assess natural metal concentrations in soils. Although the choice of the analytical procedure may appear to be an unimportant issue, through an example from the Po Plain we document that for specific hazardous metals the arbitrary choice between separate analytical techniques may have contrasting legislative implications. Comparative ...


    By Inderscience Publishers

  • Shredding of highly flammable hazardous waste

    Satrind S.p.A. has a consolidated experience in engineering plants with nitrogen blanketing protection system for shredding of highly explosive hazardous waste in previously sealed into proper containers (such as metal or plastic drums, IBC tanks, etc.) and sludge material. During treatment of hazardous wastes, vapors or flammable gases are released with dangerous emissions which are highly ...


    By SatrindTech Srl

  • NEC Classifications and Divisions for Hazardous Locations

    Electrical equipment in hazardous (classified) locations present a serious threat for workers due to the existence of explosive dust and vapors. Examples of such facilities range from grain mills and gasoline stations to aircraft hangars and chemical manufacturing plants. To prevent devastating explosions that may occur from the ignition of combustible particles in the atmosphere, the National ...


    By Larson Electronics LLC

  • OECD workshop on the environmental assessment of metals

    I recently contributed to a workshop organised by the OECD which was aimed at raising awareness of the various approaches that have been developed (mostly in Europe and North America) for performing hazard assessments for metals. The workshop covered a broad variety of issues such as how to deal with the very large datasets that are available for some metals, ensuring that data are both reliable ...


    By WCA Environment Ltd.

  • The metal binding potential of a dairy isolate

    Excess iron in water resources can lead to health hazards and problems. The ability of lactic acid bacteria to bind iron has not yet been widely studied. In the present study, sorption of iron ions from aqueous solutions onto lactic acid bacterium was determined. Elemental analyses were carried out by inductively coupled plasma optical emission spectrometry. The kinetics of Fe(III) biosorption ...


    By IWA Publishing

  • Hazardous waste characterisation of high-density discharge lamps

    This study was conducted to assess the relative hazards of used high intensity discharge lamps, based on metal analysis. The paper indicates the inherent difficulties associated with the samples and describes how this particular type of waste might be analysed. The lamps were analysed for total and soluble metals, including mercury, in order to determine inorganic persistent and bio-accumulative ...


    By Inderscience Publishers

  • Salinity changes impact of hazardous chemicals in Enchytraeus albidus

    Supra‐littoral ecosystems are among the most challenging environments for soil organisms, particularly when facing salinity fluctuations frequently combined with the presence of contaminants as a result of intense anthropogenic activities. Knowledge of how salinity influences the effect of contaminants in supra‐littoral species is crucial for determining the safety factors required when ...


    By John Wiley & Sons, Ltd.

  • Hazardous Waste Incineration Slag Optimisation by Additives

     Abstract Rotary kiln incineration combined with the disposal of residual slag on landfills defined by German landfill regulations is the most acceptable treatment for hazardous waste with respect to the environment. The objective of research is to optimize the elution behavior of HWI-slag. Quality-improved slags may be disposed off on cheaper landfill sites still applying to the landfill ...


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