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Stabilized with Lime and Phosphogypsum Ambarish Ghosh1 Abstract: Recycling of waste material is one of the effective solutions of its disposal problem. Fly ash produced by coal-based thermal
Phosphogypsum (PG) modified by milk of lime (namely lime‐preconditioned phosphogypsum, PPG) is investigated to evaluate the adsorption thereof for removing Congo Red (CR) from aqueous solution.
Geotechnical Properties and Application of Lime Modified Phosphogypsum Waste. TEBOGO MASHIFANA. Materials Science. See Full PDF Download PDF. See Full PDF ...
An appropriate amount of lime modified phosphogypsum helps remove impurities in phosphogypsum, improves the reactivity of slag powder, and promotes the …
Lime and phosphogypsum (PG) were used to improve properties of the tunnel muck. The phosphogypsum (PG) was obtained from a phosphate fertilizer plant in Nanjing. ... Effect of modified phosphogypsum on the hydration properties of the phosphogypsum-based supersulfated cement. Constr. Build. Mater., 214 (2019), pp. 9 …
DOI: 10.1016/j.jclepro.2020.122660 Corpus ID: 224958704; Application of lime neutralised phosphogypsum in supersulfated cement @article{Liu2020ApplicationOL, title={Application of lime neutralised phosphogypsum in supersulfated cement}, author={Shuhua Liu and Peipei Fang and Jun Ren and Shefeng Li}, journal={Journal of …
Compaction Characteristics and Bearing Ratio of Pond Ash Stabilized with Lime and Phosphogypsum. Author: Ambarish Ghosh [email protected] Author Affiliations. ... and Subbarao, C. (2007). "Strength characteristics of class F fly ash modified with lime and gypsum." J. Geotech. Geoenviron. Eng., 133(7), 757–766. Crossref. …
Phosphogypsum could effectively improve the tunnel muck generated in silt stratum. • The improved tunnel muck meets the requirement for subgrade performance. • A 3:1 ratio of lime to phosphogypsum has the best improved effect for tunnel muck. • CMC could create bonds with the hydration products of lime and phosphogypsum.
The flyash-lime-phosphogypsum composite (flyash + 8% lime + 2% phosphogypsum) cured for 28 days can be used as a base/subbase course material in road pavements. View Show abstract
Using lime neutralization to pretreat PG, the pH value, mortar consistency and setting time, activation index, and physical properties as well as the Fourier transform infrared spectroscopy and ...
Strength Characteristics of Fly Ash Stabilized with Lime and Modified with Phosphogypsum (2017), 10.1016/j.jobe.2017.09.010. Google Scholar. Eades and Grim, 1960. J.L. Eades, R.E. Grim. A quick test to determine …
Kumar et al. 10 carried out a study on the engineering characteristics of bentonite stabilized with lime and phosphogypsum. The research included tests on …
Lime-modified phosphogypsum can reduce the impact of impurities (such as P 2 O 5, F −) and shorten the setting time.. The OH − released by the dissolution of lime can accelerate the dissolution of slag powder and promote the hydration reaction.. After phosphogypsum is modified by lime, the porosity of the phosphogypsum-based …
The optimum mixing range for this authorized part is 12–14.5% phosphogypsum, 4–6% fly ash, and 2–3% lime Point P14F4L2 is located in this area, which indicates that in the case of a phosphogypsum content of 14%, fly ash content of 4%, and lime content of 2%, it is possible to meet the requirements of modified …
Abstract. The resource utilization of phosphogypsum (PG) can reduce the consumption of resources, turn waste into valuables, turn damage into profit, and form a green recycling economy of "resources-products-regenerated resources." The article, combined with the comprehensive utilization of PG, analyzes the existing problems. …
To this end, nine Phosphogypsum-Fly Ash-Lime formulations are designed, in a way to maximize the phosphogypsum valorization rate; the mechanical, …
Phosphogypsum (PG) is a by-product from the industry of phosphate fertilizer industry. Approximately 5 tonnes of PG are generated for per ton of phosphoric acid production. The accumulation of PG occupies huge amounts of land resources and results in serious environmental risks. In this study, a new civil engineering building …
principal curing agents, cement, lime, and phosphogypsum were utilized to enhance red mud. The dosage of the modifier and the level of compaction were two crucial indicators
This treatment method involves the addition of alkaline-modified materials, such as quick lime, into phosphogypsum; the alkaline-modified material reacts with the soluble phosphorus and soluble fluorine and converts the refractory inert materials to precipitates. This method can homogenize phosphogypsum with high-quality …
In this study, three proportions of phosphogypsum–lime–fly ash (PLF) mixture were designed, first, according to orthogonal tests. The comprehensive performance of the PLF mixture was tested by the …
Bentonite-lime-phosphogypsum mixture (pH = 8.8) The gypsum originating from PG fills up the void spaces left out after the rapid reaction of bentonite with lime, ... The pozzolanic reactions are also modified by sulphates occurrence in the parent aggregate material . The PG has a residual acidity giving a pH = 2.7.
Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. T. P. Mashifana, F. N. Okonta, F ... F. N. ; Ntuli, F. / Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. In: Revista Romana de Materiale/ Romanian Journal of …
1. Introduction. Phosphogypsum (PG) a by-product from the phosphoric acid industry is a remarkable solid waste, and about 4.5–5.0 tonnes of dry-based PG is outputted per ton of phosphoric acid (as P 2 O 5) recovered [].Approximately 20 million tonnes of PG is generated in China every year, and its utilization ratio is not more than …
2.1. Experimental procedure. In the present study the optimum mix of fly ash (FA)-lime (L)-phosphogypsum (PG) was arrived by trial. On the basis of literature study, the content of lime and phosphogypsum was varied from 2% to 10% and 0.5–4% respectively and further the optimum mix was arrived from the results of Standard …
Geotechnical Properties and Application of Lime Modified Phosphogypsum Waste. Tebogo Mashifana. 2018, Materials Science. See Full PDF Download PDF.
AMA Style. Huang S, Ma Y, Wang J, Lin Z, Chen T. Experimental Study on the Road Performance of Phosphogypsum-Modified Lime-Fly Ash Stabilized Red Clay.
Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. T. P. Mashifana, F. N. Okonta, F. Ntuli. ... Mashifana, T. P.; Okonta, F. N.; Ntuli, F. / Development of low content phosphogypsum waste composites modified by lime-fly ash-basic oxygen furnace slag. In: Revista Romana de Materiale ...
DOI: 10.1016/j.jhazmat.2019.121808 Corpus ID: 209893466; Adsorption of Cu(II) by phosphogypsum modified with sodium dodecyl benzene sulfonate. @article{Zhao2019AdsorptionOC, title={Adsorption of Cu(II) by phosphogypsum modified with sodium dodecyl benzene sulfonate.}, author={Lina Zhao and Qin Zhang and Xian …
Lime-stabilized clay modified with 4% phosphogypsum (8% lime and 16% fly ash) can be used as a road subbase material. This not only offers an environmentally friendly solution for addressing phosphogypsum waste but also contributes to improved …
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 …