The use of gypsum mining by-product and lime on the engineering properties of compressed earth blocks Dyna, vol. 81, núm. 188, diciembre-, 2014, pp. 42-51 Universidad Nacional de Colombia Medellín, Colombia How to cite Complete issue More information about this article Journal's homepage Dyna, ISSN (Printed Version): 0012-7353 ...

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. ...

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 ...

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

Phosphogypsum is the waste left behind from mining ... ash reside from coal combustion byproducts, mixed plastic, construction steel and glass. ... An aerial view of the partially drained New ...

The third phase of the ongoing project will see the building of a site that will produce synthetic gypsum and calcium chloride as byproducts of the main processes. These byproducts will then be used used in construction materials and as reagents for the road construction, coal and hydrocarbon industries. ... a phosphate mining complex was …

Use of construction materials in underground mining W71. 113 Desulphogypsums can substitute for natural gypsum in the slag-sulphate-cement …

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-

Dry coal byproducts have commercial applications, enabling TVA to sell them while encouraging recycling and reuse Fly ash can be used in wallboard; gypsum can be used in cement. ... Luckily, dry coal byproducts—fly ash, gypsum and slag—have commercial applications, and can be sold. For instance, slag can be used in abrasives …

Primary economical deposits of rare-earth elements (REEs) are exhausting all over the world, and it has become necessary to find new sources and methods for their extraction. In addition, increasing the application of REEs in modern technological society has increased its demand globally. One of the important movements to compensate for …

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 ...

DeSoto County took the first step Tuesday night to ban one of the most toxic byproducts of phosphate mining from being built there. County commissioners unanimously moved to ban gypsum stacks. The move comes as the Mosaic Company wants to rezone land to allow phosphate mining in the county's northwest corner, near …

Gypsum production. Although gypsum has historically been sourced from mining, it is also produced as a byproduct from some industrial, chemical processes (leading to products such as phosphogypsum, citrogypsum, titanogypsum and …

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

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 ...

Gypsum is a naturally occurring mineral that has been used by humans for various purposes for thousands of years. It is a versatile mineral with a wide range of applications in construction, agriculture, …

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 ...

1. Introduction. Tailings from the mining of sulfidic minerals containing metals such as copper (Cu), zinc (Zn), and lead (Pb) represent the largest volume of waste generated in the mining industry in Europe with an annual generation of ∼600 Mtons and a historic stockpile of 28,000 Mtons (Spooren et al., 2020).It has been reported that the …

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 …

Mineral carbonation to sequester carbon dioxide presents the potential for mitigating global warming. Currently, byproduct gypsum, an industrial solid waste, was …

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 …

The rise of synthetic gypsum, a byproduct of industrial processes, is beginning to impact the market dynamics for natural gypsum producers. ... Gypsum …

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 …

Mining activities are notorious for their environmental impact, with acid mine drainage (AMD) being among the most significant issues. Specifically, AMD has recently been a topical issue of prime ...

Gypsum-containing waste (GCW) derived from industries, represents a large-tonnage product. The production of gypsum materials could be one of the ways to recycle GCW products. ... The byproducts include such gypsum-containing waste (GCW) as phosphogypsum [1,2], flue gas desulfurization gypsum [3,4], borogypsum [5,6], …

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 …

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 …

The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to …

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 are associated with the disposal of this waste, including contamination of streams and lakes and pronounced landscape …