Dephosphorization of LD slag by phosphorus solubilising bacteria

Marhual, Nilima Priyadarshini; Pradhan, Nilotpala; Mohanta, Nibedita; Sukla, Lala Behari; Mishra, B.

doi:10.1016/j.ibiod.2011.01.003

Cited by 15 publications

(14 citation statements)

References 13 publications

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“…Approximately 200 kg per ton of liquid steel (Das et al, 2007;Marhual et al, 2011). EAF slag 130-180 kg per ton of liquid steel (Gurtubay et al, 2014).…”

Section: Ld Slagmentioning

confidence: 99%

“…Around 200-400 kg of slag per ton of pig iron are generated in a blast furnace operated by mineral coal, and about 150-300 kg of slag per ton of pig iron in a blast furnace fueled by charcoal (Jacomino et al, 2002;Sadek, 2014). The LD slag has a generation of approximately 200 kg per ton of liquid steel (Das et al, 2007;Marhual et al, 2011), whereas the generation of EAF slag is approximately 130-180 kg per ton of liquid steel (Masuero et al, 2004;Gurtubay et al, 2014). The slag, after its separation from the metal bath, undergoes a solidification process.…”

Section: Ld Slagmentioning

confidence: 99%

“…The recycling of the metallic fraction, however, requires a phosphorus content less than 0.5% to avoid the accumulation of this element in the steel (Lopez et al, 1995;Das et al, 2007;Marhual et al, 2011).…”

Section: Ld Slagmentioning

confidence: 99%

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Management of solid wastes from steelmaking and galvanizing processes: A brief review

Lobato

Villegas

Mansur

2015

Resources, Conservation and Recycling

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“…Approximately 200 kg per ton of liquid steel (Das et al, 2007;Marhual et al, 2011). EAF slag 130-180 kg per ton of liquid steel (Gurtubay et al, 2014).…”

Section: Ld Slagmentioning

confidence: 99%

Section: Ld Slagmentioning

confidence: 99%

See 1 more Smart Citation

Management of solid wastes from steelmaking and galvanizing processes: A brief review

Lobato

Villegas

Mansur

2015

Resources, Conservation and Recycling

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“…No entanto, esta escória apresenta componentes nocivos para os processos, como o fósforo, que não deve ultrapassar 0,5% para não interferir na composição do aço. Este valor, contudo, se encontra normalmente entre 1,5 e 6,0% na escória [6][7][8]. Assim, a fim de utilizar a escória de aciaria LD seja no alto-forno ou na sinterização é desejável reduzir o teor de fósforo.…”

Section: Reciclagem Da Escória De Aciaria Ldunclassified

“…Através dos experimentos realizados em 10% pela inoculação (v/v), foi possível remover cerca de 72,17% de fósforo da escória LD [6]. Já Marhual et al [8] trabalharam a remoção de fósforo com várias bactérias diferentes, todavia entre as bactérias testadas, as Pseudomonas aeruginosa foram as mais adequadas para solubilização de fósforo em condições altamente alcalinas da escória, apresentando cerca de 35% de remoção de fósforo.…”

Section: Reciclagem Da Escória De Aciaria Ldunclassified

Análise Das Alternativas Tecnológicas Para O Gerenciamento Dos Resíduos De Aciaria Ld

Lobato¹,

Silva²,

Villegas³

et al. 2014

ABM Proceedings

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ResumoA indústria siderúrgica gera cerca de 600 quilogramas de resíduos por tonelada de aço bruto produzido. Estes resíduos, conforme estabelecido pela legislação ambiental vigente, devem ter uma destinação final adequada de forma a não acarretar poluição do meio ambiente. Além disso, a preocupação com a sustentabilidade e a escassez de recursos minerais não renováveis tem feito com que as usinas siderúrgicas invistam cada vez mais no desenvolvimento de meios de produção mais econômicos e menos poluidores e na busca de métodos adequados para a reciclagem ou a reutilização dos resíduos gerados, de forma a minimizar a quantidade de resíduos estocados ou destinados a aterros industriais. Neste contexto, destaca-se a escória e a lama de aciaria LD. Assim, este trabalho, avalia as possíveis tecnologias aplicáveis ao gerenciamento ambiental destes resíduos, apontando as tendências e as alternativas tecnológicas para seus tratamentos, de modo a contribuir para o aumento da sustentabilidade deste setor industrial. AbstractThe steel industry generates about 600 kilograms of waste per ton of steel produced. These wastes, according to Brazilian legislation, must have an appropriate disposal in order not to cause environmental pollution. Moreover, the concern for sustainability has made the steel mills invest more in technical training, including the development of more economical ways of production and less polluting, in search of suitable methods for recycling or reuse of waste generated in their production processes in order to minimize the amount of waste stored or for industrial landfills. In this context, the slag and the sludge of LD process stand out. Thus, this work seeks to evaluate the possible technologies for environmental management of these wastes, pointing out trends and technological alternatives for their treatments, in order to contribute to the increased of the sustainability of this industry.

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Preparation and Performance of A Lime‐Preconditioned Phosphogypsum/Ag‐based Bacteriostatic Composite by Highly Efficient Loading of Ag (I) from Wastewater

Deng

Luo

et al. 2023

ChemistrySelect

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This work was supported by the Natural Science Foundation of Southwest University of Science and Technology (15zx7125); the Foundation of Post‐doctoral Scientific Research Station of Wengfu (Group) Co., Ltd. (YF(2020)022); the Foundation of National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization (SF201906); the Sichuan Science and Technology Program (2023YFS0359); and the Undergraduate Innovation Fund Project Precision Funding Program by Southwest University of Science and Technology (s202210619057, 22XCY057)

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Dephosphorization of LD slag by phosphorus solubilising bacteria

Cited by 15 publications

References 13 publications

Management of solid wastes from steelmaking and galvanizing processes: A brief review

Management of solid wastes from steelmaking and galvanizing processes: A brief review

Análise Das Alternativas Tecnológicas Para O Gerenciamento Dos Resíduos De Aciaria Ld

Preparation and Performance of A Lime‐Preconditioned Phosphogypsum/Ag‐based Bacteriostatic Composite by Highly Efficient Loading of Ag (I) from Wastewater

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