Results 41 to 50 of about 224 (179)

Evaluation of testing approaches for constituent leaching from electric arc furnace (EAF) slags

Journal of Environmental Management
Increased usage of electric arc furnace (EAF) slags as soil amendments and surface aggregates raises concerns regarding heavy metal release. However, no standardized leaching characterization approach exists for EAF slags and other industrial materials.
Siyuan Yu, Andrew C. Garrabrants, Rossane C. DeLapp, Tara Hubner, Susan A. Thorneloe, David S. Kosson   +5 more
openaire   +3 more sources

Performance Enhancement of Alkali-Activated Electric Arc Furnace Slag Mortars through an Accelerated CO₂ Curing Process

Applied Sciences, 2022
The use of electric arc furnace slag (EAFS) as sole precursor to produce alkali-activated mortars has been experimentally investigated. EAFS, a by-product of the steel recycling industry, is a coarse material with unevenly distributed and size-extensive ...
Dany Kassim, Ghandy Lamaa, Rui Vasco Silva, Jorge de Brito   +3 more
doaj   +1 more source

Effect of Intrinsic Carbon in Hot Briquetted Iron on Melting and Refining Efficiency under Electric Arc Furnace Conditions for Sustainable Steelmaking with Active Use of H2‐Reduced Iron

steel research international, EarlyView.
The melting behavior of hot briquetted iron (HBI) is observed and compared with FactSage computing simulation. When using HBI in an electric arc furnace process, a proper design of intrinsic carbon content in HBI, charging ratio of HBI, and addition of lime are proposed to be essential to control the slag volume, maintain slag basicity, and mitigate ...
Min Joo Lee, Joo Hyun Park
wiley   +1 more source

The Influence of Slag Tapping Method on the Efficiency of Stabilization Treatment of Electric Arc Furnace Carbon Steel Slag (EAF-C)

Minerals, 2019
Studies conducted over the past 10 years have demonstrated the technical suitability of the electric arc furnace slag as an alternative to natural stone in several applications. Steel slag can be profitably used as a road surface layer, for foundations and embankments, or for concrete aggregates.
Mombelli D., Gruttadauria A., Barella S., Mapelli C.   +3 more
openaire   +1 more source

Removal of Heavy Metals from Steel Making Waste Water by Using Electric Arc Furnace Slag

E-Journal of Chemistry, 2012
This work investigated the reduction of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS) and the concentration of heavy metals of wastewater from a steel making plant.
C. L. Beh, T. G. Chuah, M. N. Nourouzi, T. Choong   +3 more
doaj   +1 more source

Design Procedures for Sustainable Structural Concretes Using Wastes and Industrial By-Products

Applied Sciences, 2023
The protection of the environment must be a priority in our society, and the construction sector can contribute significantly to this goal. Construction, being one of the industrial sectors that is more demanding in terms of raw materials, must reinforce
Ana Neves, João Almeida, Fábio Cruz, Tiago Miranda, Vítor M. C. F. Cunha, Mafalda Rodrigues, José Costa, Eduardo B. Pereira   +7 more
doaj   +1 more source

A Thermodynamic‐Kinetic Model for Basic Oxygen Furnace Tapping: Improved Prediction of Phosphorus and Steel‐Slag Evolution

steel research international, EarlyView.
This study develops a thermodynamic–kinetic model for basic oxygen furnace tapping and validates its accuracy under near‐equilibrium and far‐from‐equilibrium initial conditions. Comparison with a reference model demonstrates its broader applicability. The model further reveals the evolution of key steel and slag components, providing new transparency ...
Puhong Cheng, Christian Bernhard, Michael Bernhard, Daniel Kavić, Jianghua Qi   +4 more
wiley   +1 more source

Effective Equilibrium Reaction Zone Modeling of Hydrogen Plasma Smelting Reduction: A Scenario Analysis

steel research international, EarlyView.
The study presents a dynamic zonal model for hydrogen plasma smelting reduction (HPSR) in direct current arc furnaces, predicting time‐dependent behavior of metal, slag, and off‐gas. The study considers various industrial scenarios to quantify energy demand, hydrogen utilization, degree of reduction, and other operational sensitivities.
Tristan K. Wickham, Stephanus P. Du Preez, Dmitri G. Bessarabov, Stephan C. Louw, Ernst L. J. Kleynhans   +4 more
wiley   +1 more source

Assessment of Electric Arc Furnace (EAF) Steel Slag Waste’s Recycling Options into Value Added Green Products: A Review [PDF]

Metals, 2020
Steel slag is one of the most common waste products from the steelmaking industry. Conventional methods of slag disposal can cause negative impacts on humans and the environment. In this paper, the process of steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed.
Pao Ter Teo, Siti Koriah Zakaria, Siti Zuliana Salleh, Mustaffa Ali Azhar Taib, Nurulakmal Mohd Sharif, Anasyida Abu Seman, Julie Juliewatty Mohamed, Mahani Yusoff, Abdul Hafidz Yusoff, Mardawani Mohamad, Mohamad Najmi Masri, Sarizam Mamat   +11 more
openaire   +2 more sources

Degradation under cyclic wet-dry aging of full-scale high-workability concrete maximizing sustainable raw materials

Case Studies in Construction Materials
Analyzing and validating the behavior of sustainable concrete mixes under near-realistic conditions is essential to advance their use. In this research, full-scale high-workability concretes, 0.5 m3 in volume, containing maximum amounts of sustainable ...
Víctor Revilla-Cuesta, Javier Manso-Morato, Nerea Hurtado-Alonso, Amaia Santamaría, José T. San-José   +4 more
doaj   +1 more source