Utilization path of bulk industrial solid waste: A review on the multi-directional resource utilization path of phosphogypsum

Wu, Fang; Ren, Yuanchaun; Qu, Guangfei; Liu, Shan; Chen, Bangjin; Liu, Xinxin; Zhao, Chenyang; Li, Junyan

doi:10.1016/j.jenvman.2022.114957

Cited by 130 publications

(47 citation statements)

References 147 publications

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“…One of the current hottest environmental topics is PG in terms of environmental solid waste treatment. However, the main challenge is the impurities fixed in the structure of PG, hindering the direct resource utilization rate (Wu et al, 2022;Silva et al, 2022). Additionally, waste classification code for PG also hinders its utilization rates, since PG can only be labeled as non-hazardous waste if it meets the specific requirements of hazard property codes for a specific application area (Rosales et al, 2021, Cao et al, 2022.…”

Section: Phosphogypsum As a Challenge For Phosphate Fertilizer Industrymentioning

confidence: 99%

Industrial Waste Management: Economical Benefits of the Resource Utilization of Phosphogypsum

Avşar¹,

Gezerman²

2022

ijim

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There are many publications in the literature on the reuse of waste gypsum in material production. In this study, in which the analysis of these existing publications is made through the determinations, the data examined are limited to the article and these are not included. However, to understand the general framework of the research in this field better, a few of these in the related literature are given below as examples. It is seen that industrial waste gypsum, which is a type of waste gypsum, has been examined more. Phosphogypsum, which is included in this waste group, reduces the water requirement for adjusting the cement consistency by adding phosphogypsum in cement production. As a result of the addition of phosphogypsum in wall element production, it was determined that the addition of phosphogypsum caused a decrease in mechanical strength, a decrease in unit weight and an increase in water requirement. It has been concluded that the addition of 15% phosphogypsum in soil stabilization of phosphogypsum, which is in the chemical waste class, causes an increase in water demand and pressure strength. In addition, 5.4% gypsum board waste with recycling potential is generated in the production of building elements made with waste gypsum boards formed at a construction site.

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Section: Phosphogypsum As a Challenge For Phosphate Fertilizer Industrymentioning

confidence: 99%

Industrial Waste Management: Economical Benefits of the Resource Utilization of Phosphogypsum

Avşar¹,

Gezerman²

2022

ijim

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“…475, 2013 ). Most PG produced is a fine powder with a particle size distribution mainly ranging from 10 to 1000 μm ( Wu et al., 2022a ). The density of PG particles fluctuates between 2.27 and 2.4 g/cm 3 , and their bulk density fluctuates between 0.9 and 1.7 g/cm 3 ( Rutherford et al., 1994 ).…”

Section: Properties Of Pgmentioning

confidence: 99%

“…The reuse of PG is very significant in terms of environmental and energy considerations ( Wedrychowicz et al., 2019 ). However, only 15% of global PG resources ( Wu et al., 2022a ) are used in agriculture, construction and chemicals. The trace amounts of radionuclides in PG have led to slow growth in its reuse worldwide ( Willey and Timbs, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Recycling phosphogypsum in road construction materials and associated environmental considerations: A review

Men¹,

Li²,

Cheng³

et al. 2022

Heliyon

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“…In particular, the majority of Moroccan phosphogypsum is directly discharged into the sea without preliminary treatment as reported in [12][13][14]. Therefore, the treatment and application of PG have become an urgent problem to be solved [4,15,16] Due to PG high content of calcium and sulfur and their availability in large quantities, Blum et al…”

Section: Introductionmentioning

confidence: 99%

Continuous and simultaneous conversion of Moroccan phosphogypsum waste to Na2SO4, and K2SO4 using the quaternary system Na+, K+ // Cl-, SO42- - H2O at 25°C

Laaboubi

Bouargane

Pérez-Moreno

et al. 2022

Preprint

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In this present work, the transformation of the Moroccan phosphogypsum (PG) waste, considered as a potential source of sulfate, into potassium sulfate compound could help to reduce environmental impact and to create a new value chain for the phosphate industry. Generally, solidliquid equilibria are frequently applied in chemical industries. They are a valuable aid for visualizing the precipitation, separation, purification of a solid phase and pathways through which crystallization can proceed. The aim of this process is to produce potassium sulfate, a high-value fertilizer, from sulfate solutions obtained after dissolving Moroccan phosphogypsum in NaOH medium. The quaternary phase diagram Na + , K + // Cl - , SO 4 2- - H 2 O at 25°C was especially used to determine the operating conditions and the design of a crystallization process during the phosphogypsum conversion into potassium sulfate. The Jänecke representation of this system enables the determination of the optimal trajectory in the phase diagram for the double decomposition reaction. X-ray Fluorescent (XRF) and X-ray diffraction (XRD) techniques were conducted to identify the crystalline phases formed. The results of this study could be contributing to the development of a sustainable valorization of Moroccan phosphogypsum. Furthermore, the potassium sulfate represents a good alternative to potassium chloride for chloride-sensitive crops.

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Utilization path of bulk industrial solid waste: A review on the multi-directional resource utilization path of phosphogypsum

Cited by 130 publications

References 147 publications

Industrial Waste Management: Economical Benefits of the Resource Utilization of Phosphogypsum

Industrial Waste Management: Economical Benefits of the Resource Utilization of Phosphogypsum

Recycling phosphogypsum in road construction materials and associated environmental considerations: A review

Continuous and simultaneous conversion of Moroccan phosphogypsum waste to Na2SO4, and K2SO4 using the quaternary system Na+, K+ // Cl-, SO42- - H2O at 25°C

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