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Mercury species, mass flows and processes in a cement

Aug 01, 2010  The annual emission of mercury represented 40–70% of the inputs, while cement clinker only contained about 10%. The difference between inputs and outputs (11–45%) obtained in the annual mass...

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Mercury species, mass flows and processes in a cement plant

Mercury emissions from cement other processes could be relevant for cement plants [18–21]. Ce- plants are significant and they were estimated to be about 5.6% ment production is far more complex than e.g. coal-fired power of total mercury emissions from global anthropogenic sources plants or incinerators.

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Mercury species, mass flows and processes in a cement plant

Aug 01, 2010  The annual emission of mercury represented 40–70% of the inputs, while cement clinker only contained about 10%. The difference between inputs and outputs (11–45%) obtained in the annual mass balance could be assigned to mercury recycling and significant enrichment inside the process, as well as variability between spot measurements.

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Mercury species, mass flows and processes in a cement plant

Mercury species, mass flows and processes in a cement plant Tanja Ljubicˇ Mlakara,*, Milena Horvat b, Tomazˇ Vuka, Andrej Stergaršekb, Jozˇe Kotnik , ... Shares of individual mercury species in the last sampling period were 65.7% Hg2+(g), 34.0% Hg0(g) and 0.3% Hg(p) on average. Ratios between individual mercury forms were found to be ...

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Mercury species, mass flows and processes in a cement plant

Semantic Scholar extracted view of "Mercury species, mass flows and processes in a cement plant" by T. L. Mlakar et al. Skip to search form Skip to main ... {Mercury species, mass flows and processes in a cement plant}, author={Tanja Ljubi{\vc} Mlakar and Milena Horvat and Toma{\vz} Vuk and Andrej Stergar{\vs}ek and Joze Kotnik and Janja Snoj ...

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Mercury species, mass flows and processes in a cement

Following these chemical reactions, reactive mercury species could be transported inland during the flow of sea breeze, affecting the increase both in the variability and range of Hg concentration in precipitation. Similar processes in marine atmospheric conditions were observed and described previously (Laurier et al. 2003; Sprovieri et al. 2010).

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Mercury Speciation and Mass Distribution in Cement

Nov 01, 2018  Elemental Hg was the major gaseous Hg species emitted into the atmosphere from these two cement plants, accounting for 56.4 to 98.2% of the total Hg in the flue gas. The total Hg mass output was...

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Characteristics of mercury cycling in the cement

Jan 25, 2016  Based on the test results and flow amounts of solid materials and flue gas, the mercury mass flows in the cement production process could be calculated. The mercury mass flows in the four parts were investigated through the mass balance method. The mercury recovery rates were in the range of 71–128%, which are acceptable for field tests [17], [25].

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Mercury mass flow in iron and steel production process

May 01, 2016  Mercury mass flows in sintering stage For the sintering stage, iron ores were the main input materials besides the coke and limestone (dolomite). Recycled materials such as blast furnace dust were also added into the sintering machine. The iron ores and recycling materials contributed 52% and 42% of the mercury input in Plant 1, respectively.

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Mercury Speciation and Mass Distribution of Cement

Material and gas flows and sampling points in cement production process (Plant 1). Fig. 2. Material and gas flows and sampling points in cement production process (Plant 2). fiber filter was used to collect PHg; Hg2+ was captured by impingers with KCl solution. Then, Hg0 was oxidized and absorbed by impingers with H2O2 + HNO3 solution and

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Mercury species, mass flows and processes in a cement plant

Article “Mercury species, mass flows and processes in a cement plant” Detailed information of the J-GLOBAL is a service based on the concept of Linking, Expanding, and Sparking, linking science and technology information which hitherto stood alone to support the generation of ideas. By linking the information entered, we provide opportunities to make unexpected discoveries

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Mercury species, mass flows and processes in a cement plant

Mercury species, mass flows and processes in a cement plant 出版年份 2010 全文链接 首页 ... 标题. Mercury species, mass flows and processes in a cement plant

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Mercury species, mass flows and processes in a cement plant

The aim of the study was to evaluate the behaviour of mercury in the cement clinker production process. Simultaneous measurements of mercury in all important materials an. ... Mercury species, mass flows and processes in a cement plant. Fuel, no. 8 (2010): 1936-1945.

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Mercury releases from the cement industry Global Mercury

The production of cement accounts for about 11% of the global anthropogenic mercury emissions estimated at approximately 2220 tonnes per year1. Mercury is present in the raw materials (e.g., limestone) and/or in the fuel (e.g. coal) used in the cement manufacturing process. The major pathway for mercury releases from the cement industry is via ...

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Mercury species, mass flows and processes in a cement plant

The aim of the study was to evaluate the behaviour of mercury in the cement clinker production process. Simultaneous measurements of mercury in all important materials and gas streams were performed in three sampling periods on about 300 solid samples and about 80 samples taken from gas streams. Mercury species in flue gases at characteristic parts of the process

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Mercury mass flow for cement Plant 2. Download Scientific

Download scientific diagram Mercury mass flow for cement Plant 2. from publication: Mercury Speciation and Mass Distribution in Cement Production Process of Taiwan In

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Characteristics of mercury cycling in the cement production process

Jan 25, 2016  The mercury mass flows in the whole cement production process for the two plants are presented in Fig. 1, Fig. 2. The recovery rates of the above four systems were assumed to be 100% based on the mercury input of the kiln system. ... Mercury species, mass flows and processes in a cement plant. Fuel, 89 (2010), pp. 1936-1945. Article Download ...

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Mercury mass flow in iron and steel production process and its ...

Feb 01, 2016  The total mercury concentrations in the sintering furnace flue gas were 17.773, 31.765 and 18.275 μg/m³; the major mercury species was oxidized form, which accounted for 73.4– 94.7% of the ...

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Mercury cycling and species mass balances in four North

A mass balance model for mercury based on the fugacity concept is applied to Lake Superior, Lake Michigan, Onondaga Lake and Little Rock Lake to evaluate model performance, analyze cycling of three mercury species groups (elemental, divalent and methyl mercury), and identify important processes that determine the source-to-concentration relationship of the three

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plant mass flow for cement - info-chitosan

Mercury species, mass flows and processes in a cement plant The emitted mass flow of total Hg was between 0.1 ... but the upper limit is quite high from the aspect of the mercury mass balance of the case study cement plant. ...

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Mercury mass flow in iron and steel production process and its ...

The iron and steel production process is one of the predominant anthropogenic sources of atmospheric mercury emissions worldwide. In this study, field tests were conducted to study mercury emission characteristics and mass flows at two iron and steel plants in China. It was found that low-sulfur flu

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10.1016/j.fuel.2010.01.009 DeepDyve

Jun 11, 2020  Read "10.1016/j.fuel.2010.01.009" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Efficient MnFeW/Ti catalyst for simultaneous removal of NO and

For each Hg-TPD run, the spent catalyst was loaded into a continuous flow quartz reactor and heated to 650 °C at a linear rate of 10 °C/min in N 2 flow (1 L/min). The mercury species desorbed from the spent catalyst flowed through an impinger containing 1% sodium borohydride/10% sodium hydroxide solution in which the existed Hg 2+ species can ...

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mercury species, mass flows and processes in a cement plant

Jun 21, 2016  Keywords:Mercury speciationMass balanceCement plant. emission inventory of cement plants in 2000 [5].Some studies on the behaviour of mercury in the cement pro-duction process have been published [617], but the behaviourof mercury inside the production process is still not completelyunderstood.

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Mercury releases from the cement industry Global Mercury

The production of cement accounts for about 11% of the global anthropogenic mercury emissions estimated at approximately 2220 tonnes per year1. Mercury is present in the raw materials (e.g., limestone) and/or in the fuel (e.g. coal) used in the cement manufacturing process. The major pathway for mercury releases from the cement industry is via ...

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Mercury species, mass flows and processes in a cement plant

Mercury species, mass flows and processes in a cement plant 出版年份 2010 全文链接 首页 ... 标题. Mercury species, mass flows and processes in a cement plant

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Mercury Speciation and Mass Distribution of Cement Production Process

Oct 30, 2018  In this study, the mercury (Hg) speciation and mass distribution at two cement plants located in northern and eastern Taiwan were investigated. Gaseous Hg in the kiln flue gas was sampled by the Ontario Hydro method, and the solid samples were collected to analyze the Hg mass balance. The total Hg concentrations in the raw mill electrostatic precipitator (ESP)

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Mercury cycling and species mass balances in four North

A mass balance model for mercury based on the fugacity concept is applied to Lake Superior, Lake Michigan, Onondaga Lake and Little Rock Lake to evaluate model performance, analyze cycling of three mercury species groups (elemental, divalent and methyl mercury), and identify important processes that determine the source-to-concentration relationship of the three

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Method 3200: Mercury Species Fractionation and

mercury species, i.e., the fraction of mercury species which can be extracted from the sample using the mild-acid extraction protocol(s) described within. 3.9 Non-mobile mercury - An operationally-defined subset of the non-extractable mercury species, i.e., the fraction of mercury species which can be extracted from the sample

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Review of technologies for mercury removal from flue gas from cement

Oct 01, 2012  In the cement plants using this process, mercury exhibits a complex behavior mainly due to the mercury recycling and enrichment at the raw material mills and the dust collectors (Sikkema et al ...

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Mercury in the Mediterranean. Part 2: processes and mass balance

Aug 30, 2013  Mass balance of contaminants can provide useful information on the processes that influence their concentrations in various environmental compartments. The most important sources, sinks and the equilibrium or non-equilibrium state of the contaminant in individual environmental compartments can also be identified. Using the latest mercury speciation data,

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Mercury species concentrations and fluxes in the Central Tropical ...

Apr 25, 2015  1 Introduction. Human exposure to the toxic element mercury (Hg) is linked to its chemical speciation in marine environments. Humans are primarily exposed to Hg in the bioaccumulating form, monomethylmercury (MMHg), through consumption of marine fish [Food and Agriculture Organization of the United Nations, 2013].However, concentrations of MMHg

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Mercury isotope compositions across North American forests

Sep 28, 2016  Mercury isotopes exhibit both mass-dependent fractionation (MDF, typically represented by δ 202 Hg) and at least three types of mass-independent fractionation (MIF, represented by Δ x Hg, x is the isotope mass number) [Blum et al., 2014]. Hg MIF is an especially powerful tool because different MIF can often be linked to specific sources or ...

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Mercury mass flow in iron and steel production process and its ...

The iron and steel production process is one of the predominant anthropogenic sources of atmospheric mercury emissions worldwide. In this study, field tests were conducted to study mercury emission characteristics and mass flows at two iron and steel plants in China. It was found that low-sulfur flu

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10.1016/j.fuel.2010.01.009 DeepDyve

Jun 11, 2020  Read "10.1016/j.fuel.2010.01.009" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Frontiers Concentrations and Species of Mercury in Municipal

May 12, 2022  Mercury Species in Sewage Sludge as Determined by Sequential Chemical Extractions ... Rapid Increase in Cement-Related Mercury Emissions and Deposition in China during 2005-2015. Environ. Sci. Technol. 54 (22), 14204–14214. doi:10. ... Hui, M., Wang, Z., and Wang, S. (2015). The Mercury Mass Flow and Emissions of Coal Fired Power Plants in ...

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Analysis of solid sorbents for control and removal processes for ...

Jun 22, 2020  Mercury species and their amounts and transformations in flue gases. ... The carrier gas was pure nitrogen and the gas flow was set to 1 L/min. The process temperature was 120 °C and the initial Hg 0 concentration was 40.7 ± 0.3 µg/m 3. The time of the experiment was 180 min. ... with a significant flow and the use of a small mass of sorbent ...

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