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hazardous metals Applications

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    Hazardous waste treatment solutions for metal industry

    Sludge by-products from the metalworking industry have a high potential for recycling. Prolonged grinding processes can generate large amounts of highly valuable, alloy-rich sludge; consisting of metal powder and cooling lubricants. Inside our VacuDry system, the thermal separation of the liquids (hydrocarbons, eventually water) and solids (metal powder) takes place in an oxygen free atmosphere. This absence of oxygen ultimately eliminates material degradation by oxidation, and self-ignition or explosion risks. Operation under a low vacuum ensures the possibility to recover the cooling lubricants for later reuse. After the thermal treatment, for appropriate handling in the melting process, the metal powder is pressed into briquettes. With the econ VacuDry technology, 100% recycling of all ingredients is possible.

    By econ industries GmbH based in Starnberg, GERMANY.

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    Dioxins and furans

    CTP's expertise in catalytic, adsorptive and regenerative thermal oxidation technology in nano gram purification makes it the best partner for these hazardous industrial processes.

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    Waste recovery for metal manufacturing

    There are several challenges faced by the metal manufacturing industry. Firstly, there is a drive to recover as much metal credit as possible before disposal of by-products as wastes. Secondly, there is a requirement to minimise waste generation or alternatively minimise the costs of managing the disposal of any hazardous waste material generated during the manufacturing process. Finally, keeping the company competitive by generating value or by reducing costs in the manufacturing process. Any solutions that can overcome these challenges must be considered. Tetronics can assist with a range of metal manufacturing waste challenges, including:

    By Tetronics (International) Limited based in Swindon, UNITED KINGDOM.

  • Soldering Fume Extraction

    Soldering fumes are Unbreathable. Soldering enables the joining of metal parts by melting a filler metal to attach wires and other metallic components. The fumes generated from melting solder especially solder containing Lead or Tin present are dangerous and require local ventilation to remove harmful smoke from the work area. Soldering application need to be properly ventilated to prevent toxic fumes from reaching the worker`s breathing zone. There are a number of different industries such as the electronics assembly industry and electronics repair comapnies who must deal with the hazards of solder smoke. Fumes created by automated PCB soldering including wave soldering machines, handheld soldering irons, torch brazing and furnance brazing are often ignored because of the small volume of smoke generated. However, these applications still require careful consideration as dangerous fumes can impair employee’s respiratory tracts depending on the filler metals used. Because manual soldering applications require working with tiny components, workers end up positioning their heads right above toxic rosin or lead solder fumes with a direct exposure into their throat, nasal passages and lungs, and as a result, they can experience respiratory complications. Rosin irritation can cause various side effects and the inhalation of lead fumes is carcinogenic. As lead oxide smoke collects in your lungs, it can be transferred into your bloodstream. Diversitech recommends installing soldering fume extraction equipment to prevent the inhalation of dangerous fumes. These ventilation units will not only protect each person working at a soldering station when installed and positioned correctly, but they will also prevent fumes from contaminating other worker’s lungs.?

    By DiversiTech based in Montreal, QUEBEC (CANADA).

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    Processing of LCD screens

    The safe extraction of valuable raw materials: robots automatically dismantle monitors containing mercury, while protecting workers’ health at the same time. According to initial projections, around three million LCD screens will be recycled in Germany in 2016. However, their backlighting system often contains mercury, which means they are classified as 'hazardous waste' in accordance with the EWC, and as 'Collection Group 3' in accordance with the Electrical and Electronic Appliance Law. They also contain valuable raw materials, such as metals and plastics, which have to be recovered in such a way, that the environment is not harmed. However, recycling specialists, Erdwich Zerkleinerungssysteme GmbH, have now developed an alternative: The company from Kaufering has developed an automatic processing system that enables mercury and other valuable raw materials to be easily extracted and recycled in an environmentally-friendly way.

    By Erdwich Zerkleinerungssysteme GmbH based in Kaufering, GERMANY.

  • Stack Testing for the Aluminum Industry

    ALUMINUM INDUSTRY: Performed a range of test measurements required by the promulgation of the Secondary Aluminum MACT standards. Testing included measurements of Hazardous Air Pollutants for establishing Area vs. Major Source Determinations, as well as dioxin/furan compounds associated with chlorine emissions from fluxing operations.

    By AirSource Technologies, Inc. based in Shawnee, KANSAS (USA).

  • Gas detection analyzers for processing ovens & dryers

    Many industries are involved in coating products with solvent-borne materials and then employing ovens or dryers to remove the solvents from the finished product. The key hazard is an explosion from the build up of solvent vapors in the oven or dryer atmosphere. This buildup could occur by a malfunction in the production process such as: a sudden or improper amount of coating, a change in ventilation controls or excessive speed. In any of these cases, the concentration of flammable vapor has an opportunity to rise above safe levels, creating a potentially explosive mixture of vapor in air.

    By Control Instruments Corporation based in Fairfield, NEW JERSEY (USA).

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    Applications and Air Pollutants Removed in Hazardous, Solid and Liquid Waste Treatment Operations

    Venturi scrubbers with FORCE FLUX Condensation technology and Wet Electrostatic Precipitators for industrial, municipal, sewage sludge and pathological waste incinerators to remove micron, submicron particulate, heavy metals and acid gases. Special quencher/scrubber systems for dioxin removal. HCL scrubbing from PVC plastic waste burning. Fine particulate, acid gases and NOx removal on munitions destruction. Cleanup of all pollutants from liquid waste incinerators and other high temperature destruction processes. Acid and particulate emissions from electronic board and metals recovery operations.

    By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

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    Hazardous waste treatment solutions for chlorine industry

    The mercury cell process is a formerly widely-used production technique for the production of chlorine and caustic soda. The liquid metal, mercury, acts as cathode (negative pole) in this process. In the past, the loss of mercury during the process (to air, soil and water) led to serious health and environmental problems. Therefore, most European chlorine producers have decided to phase out the mercury cell process by 2020. Nevertheless, even today, almost 6000 tons of mercury is used per year for chlorine production in Europe alone. As a result of this, yearly waste outputs contain around 1200 tons of mercury, which are stored on-site or sent off for disposal.

    By econ industries GmbH based in Starnberg, GERMANY.

  • Stack Testing for Medical Waste Industry

    INFECTIOUS WASTE INDUSTRY: Provided annual testing for metals, particulate, HCl, dioxins/furans, and typical continuous emission monitoring constituents.

    By AirSource Technologies, Inc. based in Shawnee, KANSAS (USA).

  • Continuous Metals Stack Monitor (CEMs)

    Cooper Environmental's Xact® 640 has the unique ability to generate high time resolution metals measurement in stacks. This unique capability has the potential to qualify as a substitution for the combination of a Hg/ PM CEMs application as well as the potential for a pollution control system feedback loop that could result in the reduction of pollution control consumables. Our systems have been site certified for compliance measurements at hazardous waste incinerator and secondary lead smelter sites.

    By Cooper Environmental based in Beaverton, OREGON (USA).

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    Waste recovery for mining wastes

    Mining waste typically arises from the limitation of the installed technologies of an operation, e.g. where fines cannot be tolerated. They are associated with mine workings and often contain valuable and/or hazardous materials. The hazardous content, which are often the valuable fractions within this waste are typically metals. Spread of metal toxicants in association with tailings particles, through a combination of wind dispersion or if washed into the soil or rivers, can have a highly damaging effect on the environment. Crucially, as time moves on, the mine tailing of one generation become the resource of the next.

    By Tetronics (International) Limited based in Swindon, UNITED KINGDOM.

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    Water Treatment Solutions for Radium Removal

    Radium is found naturally in uranium ores. It is an alkaline earth metal that decomposes in water and  it is over a million times more radioactive than the same mass of uranium. As a radiological hazard that emits alpha, beta, and gamma rays, it is a carcinogen.

    By Adedge Water Technologies, LLC based in Buford, GEORGIA (US) (USA).

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    Waste recovery for energy & utilities

    In order to stay competitive and to be seen as being environmentally responsible, energy and utility companies are always looking for alternative routes to generate power. One method of doing this is by leveraging waste to energy incineration plants linked to the processing municipal solid waste. During this incineration process, APC residues, which are a mixture of fly ash, organic pollutants (including dioxins and furans), are generated and are classified as hazardous waste and have a detrimental environmental impact. This fly ash is subject to Air Pollution Control as it is contaminated with extremely high concentrations of heavy metals and toxic compounds like dioxins, linked to cancer and other health problems. Tetronics offers valuable waste recovery plants that can eliminate the hazardous element within the fly ash while generating an inert building aggregate with the remaining material.

    By Tetronics (International) Limited based in Swindon, UNITED KINGDOM.

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    Recycling equipments for electronic waste recycling (WEEE)

    The content of WEEE (electrical and electronic waste) gives recyclers various initiatives for recycling. It contains hazardous substances, such as lead, mercury or certain flame retardants, as well as precious metals like gold and silver. In 2012 approx. 64,900.000 ton electronic goods where produced and 49.000.000 ton electrical and electronic waste (WEEE) was generated. As the amount of sold electronic goods rise, the amount of WEEE rises. It is vital that this waste is taken care of properly.

    By Eldan Recycling A/S based in Faaborg, DENMARK.

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    Industrial Solution for gasification & synthetic gas

    Gasification and synthetic gas production from various waste products are becoming increasingly important energy recovery technologies. Often, the synthetic gas contains various hazardous contaminants including H2S, HCl and other acids, heavy metals, and tars. The gas requires cleaning before it is introduced in the engine or boiler. Most of these processes generate significant concentration of tars. The tars can vary from very low molecular weight to large and complex chains.

    By Macrotek Inc. based in Markham, ONTARIO (CANADA).

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    Analytical and measuring instruments of chemical and petrochemical

    In the chemical field, ICP-AES is used for a broad range of analysis in order to manage trace amounts of hazardous metals in the manufacturing process, manage additive elements essential to the functionality of a product, and manage the environment of the entire factory. Therefore, it is desirable to have a robust, highly stable system able to reliably accept the injection of a broad variety of samples, regardless of the type of solvent (aqueous/organic) or the presence of matrices. It is also important to simplify processes and reduce costs, which enhances the productivity of daily quality control work.

    By Shimadzu Scientific Instruments Inc based in Columbia, MARYLAND (USA).

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    Environmental testing & compliance screening for energy/environmental sector

    Compliance screening and testing is often carried out during the manufacturing phase of a product, and all the way through its disposal or recycling process. It ensures that products and materials meet specific standards or comply with international and local directives or regulations. These standards and regulations are introduced to ensure the quality and safety of a product, and to minimise or eliminate its negative impact on the environment and people. Examples of products or materials tested are: electrical and electronic equipment (for compliance with the Restriction of Hazardous Substances (RoHS) directive), waste oils, soil (soil remediation depending on contents of toxic metals), children’s products (for compliance with Consumer Product Safety Improvement Act of 2008), etc.

    By Oxford Instruments plc based in Abingdon, UNITED KINGDOM.

  • Grinding & Deburring

    Grinding & Deburring dusts are Unbreathable. Many industrial processes generate contaminants in the air in the form of dust and particles. Airborne dust and fine particulate can be hazardous to human health, and should be extracted before it reaches the worker`s breathing zone.? Typical sources of these pollutants arise from cutting, grinding using an angle grinder or die grinder, automated grinding machines, deburring work and many other abrasive processes. Robotic grinding machines generally create a large volume of particulate which can require more filtration media to handle increased dust loads. Whereas other applications such as deburring can create very fine submicron particles that require the use of a high efficiency HEPA filter to capture the fines.? Metal, composite, fiberglass and rubber dust can be extremely dangerous to inhale and can be associated with many different lung conditions and health problems. Diversitech offers a diverse range of dust collectors, extraction arms, filter cleaning machines and downdraft tables for your grinding dust filtration requirements.???

    By DiversiTech based in Montreal, QUEBEC (CANADA).

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