Home »» Sulfur content and fluorine content of coal gangue

Sulfur, arsenic, fluorine and mercury emissions .

Request PDF | On Dec 2, 2016, Chao Zhao and others published Sulfur, arsenic, fluorine and mercury emissions resulting from coal-washing byproducts: A critical component of China's emission ...

Get Price

Release Characteristics of Heavy Metals from .

There are more than 30 waste dumps in the area around Handan city. These waste dumps contain many harmful metals, which may migrate into the soil by raining water. In order to study the migration m...

Get Price

Effects of Coal Gangue Content on Water .

Effects of Coal Gangue Content on Water Movement and Solute Transport in a China Loess Plateau Soil. Zhou Beibei. Institute of Water Resources and Hydro‐electric Engineering, Xi'an University of Technology, Xi'an, P.R. China . State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, P ...

Get Price

FLUORINE, SELENIUM, SULPHUR AND CARBON CONTENTS OF COAL .

FLUORINE, SELENIUM, SULPHUR AND CARBON CONTENTS OF COAL IN HUBEI PROVINCE. M J Li and S Z Tang Wuhan, Hubei, China SUMMARY: Analysis of 488 coal samples in Hubei Province for content of the elements fluorine, selenium, sulphur and carbon showed that the coal is of poor quality, low in C, high in ash and S, while F and Se contents are higher than the average for our country. The coal .

Get Price

Co-combustion and emission characteristics of .

The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits. Low-quality coal is often added to elevate the calorific value of the fuel. In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, low-quality coal and their blends at different proportions ...

Get Price

Co-combustion of municipal solid waste and coal .

This is also opposite to the SO 2 emission because the coal gangue used in present study has higher sulphur content than the MSW. The HCl emission obviously increases with the addition of MSW because of the extremely high chlorine content in the MSW even though the chlorine conversion rate has no obvious change. Form the changes of nitrogen, sulphur and chorine, it can be obtained that the ...

Get Price

Estimate of sulfur, arsenic, mercury, fluorine .

A rough estimate of the annual amount of sulfur, arsenic, mercury and fluoride emission from spontaneous combustion of coal gangue in China was determined. The weighted mean concentrations of S, As, Hg, and F in coal gangue are 1.01%, 7.98, 0.18, and 365.54 mg/kg, respectively.

Get Price

Trace Elements in Coal Gangue: A Review | .

13.04.2017· Coal gangue contains inorganic minerals and organic matter with high ash content, high pyrite content, and low heating value [ 1 ]. Besides the conventional pollutants of sulfur and nitrogen, it is enriched in some toxic elements which are present in less than 0.1% in coal gangue matrix [ 2, 3, 4, 5 ].

Get Price

Estimate of sulfur, arsenic, mercury, fluorine .

01.02.2016· Through Eq. (1), the average contents of sulfur, arsenic, mercury, and fluoride in coal gangue in this paper are calculated at 1.01 wt.% (weight percent), 7.98 mg/kg, 0.18 mg/kg, and 365.54 mg/kg, respectively (Table 2). The content of sulfur in coal gangue is quite close to the content of sulfur in coal (1.02 wt.%) by Luo et al. (2005).

Get Price

The concentration of fluorine in coals and .

The fluorine content of drinking water is lower than 0. 35 mg/L, and lower than the stand of lead to fluorosis; the clay that used as an additive for coal - burning and as a binder in briquette ...

Get Price

Sulfur as a parameter in the suitability assessment of ...

Sulfur as a parameter in the suitability assessment of gangue from coal mining for reclamation of opencast excavation, taking into the requirements regarding protection of the soil Beata Klojzy ...

Get Price

Frost Resistance Of Coal Gangue Aggregate .

Coal gangue, a main solid waste of the coal industry, accounts for almost a quarter of the coal output [] [].According to the China National Coal Association (CNCA), the yearly coal output of China has exceeded 3 billion tons in recent years, and the annual increase of coal gangue is more than 400 million tons, resulting in at least 2000 coal gangue piles nationwide [].

Get Price

Estimate of sulfur, arsenic, mercury, fluorine .

The highest concentration of sulfur in the Binxian Jurassic coal gangue was 6.28%, and lowest was 0.56% with an average of 2.4%, which was higher than those reported by Wang et al. (2016) (1.4%)...

Get Price

Burning Coal Gangue Content - gentet.fr

the sulfur content of coal gangue. Coal gangue is one of the largest industrial residu It has high ash content, low carbonaceous content, and heating value Meanwhile, it has some trace elements Large quantities of coal gangue cause serious environmental problems by polluting the air, water, and soil as well as occupying a tremendous amount of land Now, coal gangue utilization is a matter of ...

Get Price

The Geological Availability and Emissions of .

The average sulfur content was higher in the Permo-Carboniferous (Weibei coalfield) raw coal (2.4%) and lower in the coal gangue (1.48%) and coal slime (1.5%) than in coal worldwide (2%), whereas it was higher in the Jurassic (Huanglong coalfield) raw coal (2.85%) and coal gangue (2.4%) and lower in the coal slime (0.92) than in coal worldwide. The sulfur content in the Cambrian stone-like ...

Get Price

Co-combustion and emission characteristics of .

The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits. Low-quality coal is often added to elevate the calorific value of the fuel. In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, low-quality coal and their blends at different proportions ...

Get Price

The effects of coal gangue and fly ash on the .

The effects of coal gangue and fly ash on the hydraulic properties and water content distribution in reconstructed soil profiles of coal‐mined land with a high groundwater table. Jinman Wang . Corresponding Author. E-mail address: [email protected] College of Land Science and Technology, China University of Geosciences, Beijing, China. Correspondence. Jinman Wang, .

Get Price

Frost Resistance Of Coal Gangue Aggregate Concrete Modified ...

resistance of CGAC, the existing research mainly focused on the influences of the content of coal gangue and mineral admixture on frost resistance of concrete . However, as a lightweight aggregate, the properties of coal gangue mean that the mechanical properties and durability of CGAC are worse than those of ordinary concrete under the same conditions . Since Mangat and Hannat applied the ...

Get Price

Effects of Coal Gangue Content on Water .

Effects of Coal Gangue Content on Water Movement and Solute Transport in a China Loess Plateau Soil. Zhou Beibei. Institute of Water Resources and Hydro‐electric Engineering, Xi'an University of Technology, Xi'an, P.R. China . State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi, P ...

Get Price

How much sulphur is produced when 1 tonne of .

I'm going to interpret this question as "How much sulfur is released when a tonne of coal with a sulfur content of 2% is burned?" 2% of a tonne is 20 kilograms. So the simple answer is 20 kilograms. But, the sulfur in the coal also burns and the s...

Get Price

Arsenic and Fluorine Contents and Distribution .

Stonelike coal (SLC) is combustible black shale with low caloric value and a high degree of coalification, which is hosted in the early Paleozoic strata. The SLC is widely used for domestic purposes in the Daba fold zone in southern Shaanxi Province, China. Forty three channel samples of stonelike coal (SLC) were collected from the Daba fold zone to determine their elemental content.

Get Price

The concentration of fluorine in coals and gangue .

The fluorine content of drinking water is lower than 0. 35 mg/L, and lower than the stand of lead to fluorosis; the clay that used as an additive for coal - burning and as a binder in briquette ...

Get Price

Geochemical characteristics of fluorine in coal .

Coal washing can effectively reduce the content of impurities such as ash, gangue and sulphur; it also improves the quality and utilization efficiency of coal and reduces pollutants emitted during coal combustion. The composition of raw coal and floated coal in some of the coalfields in the XMA was analysed, and results show that coal preparation can greatly reduce the ash, sulphur and ...

Get Price

Sulfur in coals: A review of geochemistry and .

For medium-sulfur (1 to < 3% S) and high-sulfur (≥ 3% S) coals, there are two major sources of sulfur: 1) parent plant material, and 2) sulfate in seawater that flooded peat swamps. Abundances of sulfur in coal are largely controlled by the degree of seawater influence during peat accumulation and by postdepositional changes (diagenesis). In high-sulfur coals, seawater sulfate diffuses into ...

Get Price

Hydrogen fluoride may be the major cause of .

Another type of fluorosis, coal burning endemic fluorosis, caused by indoor domestic use of high fluorine coal and prevailing in thirteen provinces in South China, however, is first reported in ...

Get Price

consumption of coal and related .

01.01.2018· Domestic coal mixed with high ash coal and coal-washing residue (coal slime and coal gangue) is in general use (Li et al., 2014). Sulfur content of briquette in Shaanxi was 2.12% (one sample). The average arsenic contents of briquette from rural areas of Guizhou and Shaanxi were 7.44 mg/kg (three samples) and 57.20 mg/kg (five samples), respectively. Fluoride contents of .

Get Price

Geochemical characteristics of fluorine in coal .

Coal washing can effectively reduce the content of impurities such as ash, gangue and sulphur; it also improves the quality and utilization efficiency of coal and reduces pollutants emitted during coal combustion. The composition of raw coal and floated coal in some of the coalfields in the XMA was analysed, and results show that coal preparation can greatly reduce the ash, sulphur and ...

Get Price

Sulfur as a parameter in the suitability assessment of ...

Sulfur as a parameter in the suitability assessment of gangue from coal mining for reclamation of opencast excavation, taking into the requirements regarding protection of the soil Beata Klojzy ...

Get Price

The effects of coal gangue and fly ash on the .

The effects of coal gangue and fly ash on the hydraulic properties and water content distribution in reconstructed soil profiles of coal‐mined land with a high groundwater table. Jinman Wang . Corresponding Author. E-mail address: [email protected] College of Land Science and Technology, China University of Geosciences, Beijing, China. Correspondence. Jinman Wang, .

Get Price

Sulfur as a parameter in the suitability assessment of ...

Sulfur as a parameter in the suitability assessment of gangue from coal mining for reclamation of opencast excavation, taking into the requirements regarding protection of the soil Beata Klojzy ...

Get Price