1. Introduction Thermal energy storage systems, particularly those employing phase change materials (PCMs), are increasingly recognized as pivotal elements in addressing the escalating energy demand of …
Review Phosphogypsum circular economy considerations
The maximum energy storage density is 237 MJ/m 3; only 14% lower than the pure paraffin. A lab scale TES layout of the PG based CPCMs is also investigated in ANSYS. The effect of the flow rate of the heat transfer fluid, in this case air, is evaluated.
2021. Abstract: Phoshpogypsum (PG) is an environmentally hazardous industrial by-product of the fertilizer industry with an annual production of 300 Mt, with a utilization rate of only 15%. In this work, we propose a novel use-case for PG. The latter is combined with a commercial-grade paraffin to fabricate composite phase change materials (CPCMs), for …
The free energy and enthalpy changes of each elementary reaction at different temperatures were obtained (The relevant calculation details are shown in the supporting materials). The change in Δ H and Δ G values of CuO reacted with C, H 2, and CO at 973–1373 K, which reflects the influence of temperature on the reaction.
Phosphogypsum is valued in several sectors: road construction, building materials and agriculture. In agriculture, PG is used as an amendment for degraded soils (saline, sodic and acid soils) and as a fertilizer because it contains many essential nutrients for plant growth and development such as calcium, sulphur, and phosphorus.
Phosphogypsum (PG) is a by-product produced during the wet process of phosphoric acid (H3PO4) production from natural phosphate rocks. Approximately 4–6 tons of PG is produced per ton of phosphoric acid production, where worldwide PG generation exceeds 300 million tons annually. The vast majority of produced PG is discarded …
Many industrial by-products have been disposed along coastlines, generating profound marine changes. Phosphogypsum (PG) is a solid by-product generated in the production of phosphoric acid (PA) using conventional synthesis methods. The raw material, about ...
In this work, we propose a novel use-case for PG. The latter is combined with a commercial-grade paraffin to fabricate composite phase change materials …
Phoshpogypsum (PG) is an industrial byproduct of the fertilizer industry typically disposed in the sea, dams or dykes, which presents a significant environmental hazard due to …
Valorization of phosphogypsum as a thermal energy storage material for low temperature applications https://doi /10.1016/j.jclepro.2022.130839 Journal: Journal of ...
Phosphogypsum is the most significant industrial solid waste in the world. Phosphogypsum has a complex composition and its traditional storage methods occupy large areas of land and also damage the environment. Currently, phosphogypsum is mainly used for the direct preparation of construction materials and chemical auxiliary …
Phosphogypsum (PG) is a by-product generated from the phosphorus fertilizer industry (phosphoric acid production). PG is similar to natural gypsum, but there are some differences, of which it contains some impurities such as water-soluble phosphate (P 2 O 5), water-soluble fluoride (F −) and P 2 O 5 substituted in the gypsum crystal lattice.
Phosphogypsum is a by-product of the phosphates industry. Produced in significant quantities, the material is considered a waste in the US due to radioactivity, where the primary means of management is storage in "stacks." But around the world, phosphogypsum ...
This study contributes to sustainable construction practices by exploring the use of phosphogypsum, a commonly discarded byproduct, in the production of recycled aggregates. Addressing both environmental and economic aspects of sustainability, we investigate the feasibility of employing phosphogypsum as a primary raw material, in …
1. Introduction Industrialization has a major positive impact on the global economy, but it also generates large amounts of waste that can be harmful to the environment. Dealing with this waste is a challenge that humanity must face (Goodship, 2009).One of the ...
AbstractPhosphogypsum (PG) is an industrial solid waste generated during the preparation of phosphoric acid, which is produced in large quantities and stockpiled or discharged into the sea. This study aims to …
Phoshpogypsum (PG) is an industrial byproduct of the fertilizer industry typically disposed in the sea, dams or dykes, which presents a significant environmental …
The maximum energy storage density is 237 MJ/m 3; only 14% lower than the pure paraffin. A lab scale TES layout of the PG based CPCMs is also investigated in ANSYS. The effect …
Researchers [27 − 28] have successfully developed energy storage aggregates using porous solid wastes, such as red mud, slag, and fly ash, providing a …
Download Citation | Study on preparation of inorganic binder stabilized material with large dosage of phosphogypsum ... The maximum energy storage density is 237 MJ/m 3 ; only 14% lower than the ...
Sedimentary and igneous PG can be used as raw material in building components. • Production of α-PG and β-PG has low energy consumption (150 C). • PG-based cementitious systems can achieve high compressive strength (60 -80 …
Phosphogypsum is an industrial by-product resulting from the production of phosphoric acid by ''''wet acid method" [14].This material is generated from chemical reaction between phosphate rock (Ca 10 (PO 4) 6 F 2), sulphuric acid and water, as described Equation (1) ([15, 16]).]).
For proximity reasons and in order to reduce the costs related to transport, the fly ash used was taken from the Jorf Lasfar thermal power plant, where it is generated as a by-product from coal combustion. Based on its chemical composition (Table 1), it can be assigned to class F which includes fly ashes containing less than 8% CaO, according to …
Valorization of phosphogypsum as a thermal energy storage material for low temperature applications. A. Anagnostopoulos, M. Navarro, +2 authors. G. Gaidajis. …
The storage of the phosphogypsum in stockpiles causes serious environmental problems. In order to avoid them, this by-product should be utilised. Hence, one solution is to employ it as a binding ...
Nano-CaSO4, a good cubic structure with dimensions of no more than 100 nm, was first prepared from phosphogypsum (PG). The effects of different reaction conditions on PG morphology, achieved by optimizing the reaction temperature, the concentrations of HNO3, H2SO4, and cetyltrimethylammonium bromide (CTAB) and …
Phosphogypsum (PG) is a by-product produced during the wet process of phosphoric acid (H 3 PO 4) production from natural phosphate rocks. Approximately 4–6 …