oxidized mercury Articles
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Surface Decontamination of Mercury Compounds (Mercury(II) Oxide (HgO)) by DeconGel 1101
Abstract Surface decontamination efficacy determination of DeconGel™ 1101 on stainless steel, carbon steel, and concrete surfaces contaminated with mercury compounds (mercury(ll) oxide (HgO)) was performed with ICP-OES (Inductively Coupled Plasma-Optical Emission Spectroscopy) according to Environmental Protection Agency (EPA) SW-846 Methods 3005A (sampling) and 6010C (analysis). ...
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Continuous measurement of mercury emissions in combustion plants (Overview and new measuring method)
Introduction Continuous measuring devices have been used for continuous recording of Hg emissions in waste incineration plants since the early Nineties. Operators of combustion plants must maintain a 24-hour measured value of 30 μg/m³ mercury and a half-hourly average value of 50 μg/m³ in accordance with the 13th and 17th BImschV. In order to meet these requirements, measuring ...
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Mercury speciation and distribution in a 660-megawatt utility boiler in Taiwan firing bituminous coals
Mercury speciation and distribution in a 660-MW tangential-fired utility boiler in Taiwan burning Australian and Chinese bituminous coal blends was investigated. Flue gases were simultaneously sampled at the selective catalytic reduction (SCR) inlet, the SCR outlet, the electrostatic precipitator (ESP) outlet, and the stack. Samplings of coal, lime, bottom ash/slag, fly ash, and gypsum slurry ...
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Technical Challenges of Continuous Mercury Emissions Monitoring
Many pollutants such as CO2, NOx and SO2 have been monitored continuously already for decades. In the last years the awareness for the need to measure mercury has also grown, and continuous mercury monitoring is becoming more and more relevant. Especially industries burning coal, oil or waste, share the responsibility to monitor their mercury emissions. All measuring techniques need to be able ...
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How to Monitor Mercury Emissions
In recent years, mercury levels in the environment and in the food chain have risen substantially mainly due to human activities. As a long-range pollutant it can affect areas located thousands of kilometers away from its original source of emission. It’s no wonder then that the regulatory pressure to monitor mercury emissions grows stronger. Before diving into the analysis techniques and ...
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Tekran instruments—monitoring around the world
Tekran provides trace-level mercury analytical and monitoring technology for a variety of applications including laboratory-based sample analysis, continuous point-source emissions and ambient air monitoring. This article focuses on and highlights the results of an application of Tekran’s Ambient Air Mercury Speciation System. In contrast to most other heavy metals, mercury (Hg) and ...
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EFFECT OF CROPPING SYSTEMS ON HEAVY METAL DISTRIBUTION AND MERCURY FRACTIONATION IN THE WANSHAN MINING DISTRICT, CHINA: IMPLICATIONS FOR ENVIRONMENTAL MANAGEMENT
We studied the concentration of heavy metals and mercury fractionation in contaminated soil for two agricultural land use systems (paddy rice and dry‐land) at the Wanshan Hg mine in China. The average concentration of chromium, lead, copper, nickel and zinc was generally lower in paddy‐rice (PR) soil relative to corn field (CF) soil. Soil under CF production was slightly contaminated with lead ...
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Mercury Control Demonstrations
C1.1 | Halogens and Sulfur in Coals and their Influence on Co-benefit Mercury Capture Bernhard Vosteen | President, Vosteen Consulting Gmbh Not only the range of the coal mercury content itself, but also the range of the native halogen and sulfur contents in coal are of great influence on co-benefit mercury capture, wet and dry. The specific role of different halogens is discussed with ...
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Wet Flue Gas Desulfurization System
Installing the optimum wet flue gas desulfurization technology, B&V Energy is bringing superior multi-pollutant removal technology to the North American utility marketplace. To help make a positive impact on the global environment and to comply with the Clean Air Interstate and Clean Air Mercury Rules, Dayton Power & Light needed to remain in compliance as more stringent air quality ...
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Case study - Nuclear medicine and research laboratory environments contaminants removed
Customers Include: Abbot Laboratories, Bay Regional Medical Center, Colorado State University, Eisenhower Army Medical Center, Eli Lily, Harvard University, Legacy Good Samaritan Hospital, Mayo Foundation, Merck, Oregon State University, Palmetto Health Baptist Hospital, Tripler Hospital, University of California at Berkeley, University of Cincinnati, University of Wisconsin, U.S. Army Tripler ...
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Methods of Nucleoside Bond Formation
Nucleic acid is a biopolymer compound composed of nucleotides and is one of life’s basic substances. It is widely found in all animal and plant cells, microorganisms, and organisms, and is often combined with proteins to form nucleoproteins. According to their different chemical compositions, nucleic acids can be divided into ribonucleic acid (RNA) and deoxyribonucleic acid (DNA). ...
By BOC Sciences
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Continuous Mercury Monitoring Requires Reliable and High-Quality Systems with High Top-tier Sensitivity
In this blog post, we answer the most frequently asked questions about our fully optimized solutions for continuous monitoring of mercury emissions, CMM and CMM AutoQAL, our new continuous mercury monitoring system that has an EN 15267 certified, integrated and automatic QAL3 Validation Tool. 1. What is the detection limit of the CMM AutoQAL & CMM? Taking the dilution ratio into account, ...
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The application of Flow Injection Technology to automating cold vapor MERCURY analyses
This document describes the application of flow injection technology to cold vapor mercury analyses. It can be obtained from PerkinElmer by requesting method number ENVA-100. Appendices 1 and 2 show letters from the US EPA indicating acceptability through the Alternate Test Program for both drinking water and wastewater sample analysis. 1.0 Scope and Application 1.1 This method measures total ...
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Frequently Asked Questions about Continuous Mercury Monitoring
In this blog post, we answer the most frequently asked questions about our fully optimized solutions for continuous monitoring of mercury emissions, CMM and?CMM AutoQAL, our new continuous mercury monitoring system that has an EN 15267 certified, integrated and automatic QAL3 Validation ...
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How to tackle the technical challenges of continuous mercury emissions monitoring
Many pollutants such as CO2, NOx and SO2 have been monitored continuously already for decades. In the last years the awareness for the need to measure mercury has also grown, and continuous mercury monitoring is becoming more and more relevant. Especially industries burning coal, oil or waste, share the responsibility to monitor their mercury emissions. Due to its sticky quality and extremely ...
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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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Controlling Air Pollutants case study
While it's not always easy to determine what's required for compliance, new technologies can help achieve air-pollution control Selecting air-pollution control equipment can be tricky. It's not only difficult to determine which pollutants must be controlled, but also which type of equipment will best control them to required levels for any given process or facility because there is no ...
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Landfill pumps for Gas well dewatering - Case Study
AutoPumps Keep the Power On for Thousands of Florida Homes Waste Management's Springhill Regional Landfill near Campbellton, Florida generates "green" energy by extracting and burning the methane in landfill gas. Its $7 million landfill gas energy (LFGE) plant, with six large Caterpillar engines running 24 hours a day, 7 days a week, is capable of producing 4.8 million watts of power. Most of ...
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AutoPumps keep the power on for thousands of Florida Homes - case study
Waste Management's Springhill Regional Landfill near Campbellton, Florida generates 'green' energy by extracting and burning the methane in landfill gas. Its $7 million landfill gas energy (LFGE) plant, with six large Caterpillar engines running 24 hours a day, seven days a week, is capable of producing 4.8 million watts of power. Most of the energy goes to the Alabama Electric Cooperative for ...
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Industrial Wastewater Treatment
Industrial wastewater contains many toxic and harmful substances, which not only pollute the environment, but also endanger human health. Industrial wastewater treatment has always been concerned by people and social. Industrial wastewater is divided into phenol wastewater, mercury-containing wastewater, oil-containing wastewater, heavy metal wastewater, cyanide-containing wastewater, Paper mill ...
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