mercury treatment Articles
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Low cost treatment of wastewater containing mercury salts
Removal of mercury from wastewater is of considerable significance from an environmental point of view. Treatment of wastewater containing mercury salts has been carried out with the help of modified fly-ash bed. The preparation of the bed material has been described. The effects of different parameters such as pH, exchange capacity and the presence of other constituents have been studied. ...
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Effect of laying sequence on egg mercury in captive zebra finches: An interpretation considering individual variation
Bird eggs are widely used as noninvasive bioindicators for environmental mercury availability. However, previous studies have found varying relationships between laying sequence and egg mercury concentrations. Some studies have reported that the mercury concentration is higher in first‐laid eggs or declines across the laying sequence, whereas in other studies mercury concentration was not ...
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Mercury waste treatment centre - Case study
The Mercury Waste Treatment Centre has been set-up by an oil and gas service company following the high demand of major oil and gas companies for local waste management solutions. Prior to the establishment of the econ supplied waste treatment centre, waste had to be shipped to be finally disposed of 13 000 km from the waste source. This involved complicated and expensive waste notification and ...
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Traveling to India for the installation of a VacuDry 3,000 for the treatment of mercury contaminated soil
Environmental pollution doesn't take a break during Corona. So at econ we decided to continue with the commissioning plan and therefore the support of our partner in India. Under strictest health & safety measures, including frequent PCR tests and quarantine, two of our econeers set out to India to commission a VacuDry 3,000 for the ex-situ on-site treatment of mercury contaminated ...
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econ VacuDry® technology proves successful for the treatment of NORM wastes
Large amounts of drilling sludge containing low levels of natural radioactivity is a resultant by-product of the oil and gas production process. These so-called NORM-sludges (Naturally Occurring Radioactive Material) are often contaminated with both mercury and hydrocarbons. The econ industries VacuDry® technology is recognized in Germany as the first choice for the extraction of the mercury ...
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Sulphate reducing bacteria to precipitate mercury after electrokinetic soil remediation
Combined treatment with electroremediation and sulphate reducing bacteria (SRB) was tested in laboratory and pilot scale. The contaminated soil came from a chlor-alkali factory and contained about 100 mg/kg Hg. Iodide/iodine complexing agent was used to mobilize mercury. Mercury iodide complexes were moved to the anode solution using an electric field. The anode solution was then mixed with ...
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Health and environmental training in mercury-contaminated areas
In 50 countries small-scale miners recover gold by amalgamation process, using excessive quantities of mercury. Fifteen million artisanal gold miners apply this process and 100 million people might depend upon these activities. Small-scale mining adds extensively to the worldwide release of mercury into the environment. The University of Munich assessed the health of people living in mining ...
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Remediation of a mercury contaminated site - Case study
Remediation of mercury contaminated industrial site for future expansion of industrial area. 70,000 tons of mercury contaminated soil and building rubble have to be cleaned in an industrial facility in the south of France until 2013. For the realization of this remediation work, an econ industries VacuDry 12,000 has been in operation since early 2011. After the treatment the mercury free soils ...
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Remediation of mercury contaminated industrial site for future expansion - case study
70,000 tons of mercury contaminated soil and building rubble have to be cleaned in an industrial facility in the south of France until 2013. For the realization of this remediation work, an econ industries VacuDry® 12,000 has been in operation since early 2011. After the treatment the mercury free soils can be re-used on-site as building material. A similar but smaller econ industries ...
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Mercury recovery from industrial waste - Case study
Mercury recovery from industrial waste and toxic residues of natural gas drilling econ industries' client in the east of Germany is one of the few specialised companies in Europe for the treatment of mercury contaminated waste. Typical input material for this type of treatment is sludge from the natural gas industry or other residues from chemical processes, i.e. contaminated filter cake from ...
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On-Site Treatment of Soils with Leachable Mercury During Mine Remediation
Mercury contamination during mine reclamation,Stabilization of mercury,Treatability testing,Full-scale ...
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Organoclay MRM removes mercury from New Jersey construction site - Case Study
Location East Rutherford, New Jersey Products Used Organoclay MRM A national remediation contractor was tasked with the construction and operation of a groundwater treatment system for a large excavation site in East Rutherford, NJ. The site owner is a multinational chemical company, and the groundwater was contaminated with organics, arsenic, and mercury. The design engineer specified ...
By CETCO
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Demonstration and evaluation of germicidal UV-LEDs for point-of-use water disinfection
Ultraviolet (UV) irradiation is a common disinfection option for water treatment in the developed world. There are a few systems installed in developing countries for point-of-use treatment, but the low-pressure mercury lamps currently used as the UV irradiation source have a number of sustainability issues including a fragile envelope, a lifetime of approximately one year, and they contain ...
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Fluorescent lamps recycling - Case Study
The fluorescent lamps recycling plant was designed for a Taiwanese recycling company. The task was to develop a treatment plant which achieves a high recycling quota while keeping the investment level moderately low. This was achieved by combining several specially developed technologies. These technologies include a high efficient shredder-sieving system, the closed-loop washing unit, an ...
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VaCure Mercury stabilisation by Mobile Units
For metallic mercury separated from various different waste streams Spent catalyst from the oil & gas industry, spent activated carbon, residues from former chlorine-alkali production, drilling wastes, fluorescent lamps powder. They all have one thing in common: Elemental mercury is separated during thermal treatment. econ industries´ competence to provide solutions to deal with various ...
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Legal Lookout: EPA Expands Mercury Reduction Program
Untitled Document Mercury is a naturally occurring metal found in the Earth’s crust. At high doses, mercury is known to cause adverse human health effects. Over the past several years, EPA has focused on mercury exposures because of its potential to cause adverse human health and environmental effects, and because of its persistence and widespread distribution in the ...
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How LEDs Will Change Water Purification
Ultraviolet (UV) light has been naturally purifying water for centuries. With clear skies, our sun can inactivate water-based pathogens in six hours minimum. Cloudy skies or unclear water causes imperfect conditions. These conditions allow for bacteria to grow and make natural water sources unsafe to use. Fortunately, we have developed several types of water disinfection, ranging from chemicals ...
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Wastewater Plant Relies on Thermal Flow Meter for Co-Gen Power Gas Blending Process
The Rahway Valley Sewerage Authority (RVSA), which operates a large wastewater treatment plant in New Jersey, embarked on a green co-generation waste-to-energy project to power a portion of its operations. The plant performs primary, secondary, tertiary and sludge treatment processes in serving over 250,000 residential customers and 3000 industrial and commercial customers in a 40-plus square ...
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