Phosphorus removal by electric arc furnace steel slag adsorption

Lim, Jihun; Lee, K F; Chong, Thomas S.Y.; Abdullah, Luqman Chuah; Razak, Musab Abdul; Tezara, C.

doi:10.1088/1757-899x/257/1/012063

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…Thus, Malaysia needs to make recycling beneficial to both manufacturers and the environment. Initiatives may be taken toward a better Malaysia [22,29,30,34,43,[46][47][48].…”

Section: Solid Wastes and By-products Issues In The Steelmaking Industrymentioning

confidence: 99%

“…Nonetheless, there is no doubt that EAF slag has great potential for treating wastewater from mines with acid mine drainage issues. In Malaysia, several studies have reported on the application of EAF slag as an adsorbent for wastewater treatment [30,47,48,91,92]. Hosseini et al (2015) agreed that the adsorption capacity, pH, particle size dosage, contact time, and initial concentration would affect the adsorption capacity of the EAF slag [91].…”

Section: Filter or Adsorbent In Wastewater Treatment Plantmentioning

confidence: 99%

“…EAF slag was also found to be a more suitable adsorbent for nutrient removal compared to lime due to the presence of Si, Ca, Mg, and Fe, in addition to its surface porosity [92]. Phosphorus adsorption by EAF slag has shown that a smaller adsorbent size and a slightly acidic environment (pH = 3) are required for optimum adsorption [47]. Chemical treatment of EAF slag by using hydrochloric acid has proven to improve the adsorption of methylene blue by the slag due to the enhancement of the pores on the surface after removing impurities.…”

Section: Filter or Adsorbent In Wastewater Treatment Plantmentioning

confidence: 99%

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

Teo

Zakaria

Salleh

et al. 2020

Metals

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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. Since steel is mainly produced through an electric arc furnace (EAF) in Malaysia, most of the recycling options reviewed in this paper focused on EAF slag and the strengths and weaknesses of each recycle option were outlined. Based on the reports from previous studies, it was found that only a portion of EAF slag is recycled into more straightforward, but lower added value applications such as aggregates for the construction industry and filter/absorber for wastewater treatments. On the other hand, higher added value recycling options for EAF slag that are more complicated such as incorporated as raw material for Portland cement and ceramic building materials remain at the laboratory testing stage. The main hurdle preventing EAF slag from being incorporated as a raw material for higher added value industrial applications is its inconsistent chemical composition. The chemical composition of EAF slag can vary based on the scrap metal used for steel production. For this, mineral separation techniques can be introduced to classify the EAF slag base on its physical and chemical compositions. We concluded that future research on recycling EAF slag should focus on separation techniques that diversify the recycling options for EAF slag, thereby increasing the waste product’s recycling rate.

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“…Thus, Malaysia needs to make recycling beneficial to both manufacturers and the environment. Initiatives may be taken toward a better Malaysia [22,29,30,34,43,[46][47][48].…”

Section: Solid Wastes and By-products Issues In The Steelmaking Industrymentioning

confidence: 99%