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Environmental Impacts of Gypsum Mineral Mining and …

In the realm of mineral extraction, the mining of gypsum emerges as a focal point, raising pertinent queries about environmental repercussions. This critical examination delves into the profound environmental impacts triggered by gypsum mineral extraction and processing, dissecting water contamination concerns, soil degradation issues, and air ...

Gypsum | Properties, Formation, Uses and …

In addition to natural deposits, synthetic gypsum is produced as a byproduct of various industrial processes, including flue gas desulfurization in coal-fired power plants and the production of …

Coal Byproducts Are A Great Source Of Rare Earth Elements

China alone produces nearly 90 ­percent of the world's supply, and the U.S.'s only mine closed this year. But researchers could help break that monopoly with something we already have in ...

Byproduct Gypsum | The Chemistry and Technology of Gypsum …

Byproduct gypsum is the chemical end product of industrial processing plants, consisting primarily of calcium sulfate dihydrate, CaSO 4 ·2H 2 O. The oldest byproduct-gypsum-producing industry is that of the phosphate rock chemical processing in Florida. Large sludge ponds and retaining stockpiles are accumulating, and total tonnage may ...

Characterization of coal combustion byproducts fifteen years after

Coal combustion byproducts (CCBs) have potential as structural fill and capping materials in abandoned mine land (AML) reclamation because of their acid-neutralization capacity.

Environmental risk assessment of industrial byproduct …

The Challenges of Reusing Mining and Mineral …

Mining and mineral-processing wastes—the solid and liquid materials generated after mining and ore processing at or near mine sites ()—have no current economic use.A number of environmental problems …

Gypsum | Properties, Formation, Uses and Deposits

Agricultural and Industrial Byproducts: Synthetic gypsum, generated as a byproduct in industrial processes like coal combustion and the production of phosphoric acid, is used in various applications, ... Notable examples include the Cave of the Crystals in Mexico's Naica Mine, which contains some of the world's largest gypsum crystals. ...

Environmental risk assessment of industrial byproduct gypsum …

An abandoned gypsum mine has been discovered beneath the route of a highway construction in Hunan province, south China. Due to the highway construction and operations safety, there is an urgent ...

Application of the Industrial Byproduct Gypsum in Building

This paper mainly focuses on the sources and physicochemical properties of various types of gypsum byproducts and summarizes the application scenarios of various gypsums in construction materials. Finally, some suggestions are proposed to solve the …

2018 Minerals Yearbook

In 2018, gypsum-derived products, including agricultural products, cement, plasters, and wallboard, totaled 43.3 mt with a value of $5.09 billion. This represented a slight …

Construction and Building Materials

This study summarized industrial by-product gypsum into eight types (flue gas desulphurization gypsum (FGDG), phosphogypsum (PG), titanium gypsum (TG), …

Construction and Building Materials

The subsequent content includes a summary concerning industrial by-product gypsum recycled in mining and road backfill. 3.2.1. Mine backfill material. The excessive exploitation of coal resources has led to numerous casualties and surface collapses. Simultaneously, the solid waste produced during the coal mining process has …

Mine waste finds new life as source of rare earths

The company will extract phosphorus for fertiliser, fluorine and gypsum in addition to rare earths. In South Africa, Rainbow Minerals is also planning to process stacks of waste from years of ...

Extracting rare earths from fertilizer byproduct …

Phosphogypsum stack located near Fort Meade, Florida. These stacks contain the waste byproducts of the phosphate fertilizer industry. (Image by MakeChooChooGoNow, Wikimedia Commons).

Production and use of by-product gypsum in the

This chapter focuses on the production and the use of by-product gypsum in the construction industry. There are two groups of gypsum by-products that have been …

Environmental Risk Assessment of Industrial by- product …

The application of industrial by-product gypsum in mine filling will reduce the cost and increase the environmental benefits, which will be bound to become the development direction of filling ...

Environmental risk assessment of industrial byproduct …

Keywords Industrial solid waste gypsum · Coal mine back-lling · Leaching of metal elements · Patterns of migration 1 Introduction In China, metal or nonmetal mineral assets have a large out-

Environmental risk assessment of industrial byproduct …

To explore the potential risks of gypsum to the groundwater environment due to the backfilling of abandoned mines, a sequential batch leaching experiment was …

Production and use of by-product gypsum in the

This chapter focuses on the production and the use of by-product gypsum in the construction industry. There are two groups of gypsum by-products that have been identified: chemical gypsum and desulphogypsum. ... Studies on desulphogypsum utilization in other areas such as mining and road engineering should result in the …

Veela Mining Solutions' Post

Coal mining doesn't just produce energy—many valuable byproducts come from the process, each finding its place in various industries. ... and buildings. Gypsum Produced from flue gas ...

Gypsum mining spoil improves plant emergence and …

Purpose Soil pollution is a major problem worldwide. Some anthropogenic activities, such as mining, may exceed soil capacity, causing relevant health and ecosystem hazards. The use of mineral amendments can help reduce soil pollution. Gypsum mining spoil (GS) is a waste material highly produced in gypsum mining …

Gypsum Products

As written before, there are two main sources of raw materials for manufacturing gypsum products: natural gypsum and synthetic gypsum. It is also viable to recycle gypsum from urban mining source (termed end-of-life (EoL) gypsum or post-consumer gypsum waste) although the use of this product is still low (Jiménez-Rivero …

Limestone Mining, Industry, and Society | SpringerLink

Three keywords (i.e., industry, society, and limestone mining) are important to describe this chapter in continuation of the preceding chapter, which explained the mining or excavation process. If we analyse the above three aspects, the …

Deriving Value from Acid Mine Drainage

Acid mine drainage (AMD) is a worldwide problem, and the harmful effects of AMD on the environment and infrastructure are unquestionable. While precipitation of dissolved metals and neutralization of acidity from AMD is accomplished relatively easily with lime addition, the reduction of the remaining sulfate content to obtain water suitable …

Synthetic Gypsum Market Analysis and Forecast to 2033: …

The Synthetic Gypsum Market, valued at USD 3.41 billion in 2023, is poised for moderate growth with a projected compound annual growth rate (CAGR) of 4.87% from 2023 to 2033.

Radioactive Material From Fertilizer Production | US EPA

Phosphate rock mining is the fifth largest mining industry in the United States in terms of the amount of material mined. The phosphate industry is concentrated in the southeastern United States. About 75% of phosphate is mined in Florida and North Carolina with the rest in Idaho and Utah.

Recycling, reusing and environmental safety of industrial by …

With the rapid advancement of industrial production, the substantial accumulation of industrial by-product gypsum containing high salinity, acidity/alkalinity, and heavy metals are currently causing widespread ecological damage on a global scale. Based on the different industrial production processes, industrial by-product gypsum can be …

A Review of Rare-Earth Elements Extraction with Emphasis …

This paper presents a review of the classification and extraction methods, as well as general applications of REEs with emphasis on secondary sources such as coal and coal byproducts, iron ore ...

Agricultural Uses of Phosphogypsum, Gypsum, and Ca …

Phosphogypsum, Gypsum, and Other Industrial Byproducts R.F. Korcak This chapter provides information about several industrial byproducts and agricultural uses for these byproducts. The focus is on relatively new industrial byproducts for which significant data have accumu-lated over the past 10 to 15 yr. Also included are some