Microwave activated and iron engineered biochar for arsenic adsorption: Life cycle assessment and cost analysis

Norberto, Julia; Benis, Khaled Zoroufchi; McPhedran, Kerry N.; Soltan, Jafar

doi:10.1016/j.jece.2023.109904

Cited by 22 publications

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 5 shows the cost of preparing 1 kg of magnetic biochar. This gross cost is in the range of those previously reported for other biochar adsorbents which typically range from $0.56 to $5.91 per kg of adsorbent [31,[74][75][76]. The energy expenditure consumed by the use of electricity for pyrolysis, drying, stirring and other processes is the most important cost, accounting for over 55%.…”

Section: Obtaining Costs Estimationmentioning

confidence: 67%

Effect on the adsorption performance and mechanism of antibiotics tetracyclines by the magnetic biochar used peanut shells as raw materials

Zhang,

Hua

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

Widespread environmental pollution caused by the misuse of tetracyclines (TCs) has become a global issue, necessitating the development of water treatment materials for antibiotic removal. Magnetic biochar (MBC) possesses several advantages, including a wide range of raw material sources and low cost, making it a potential adsorbent that overcomes the limitations of biochar (BC) regarding solid-liquid separation. In this study, peanut shell-derived magnetic biochar loaded with Fe3O4 (Fe3O4/BC) was prepared to study its adsorption performance and environmental factors for TCs. The adsorption mechanism was revealed using adsorption isotherms, adsorption kinetics and thermodynamics. The results showed that the total pore volume was increased, and surface oxygen-containing functional groups were formed of that before BC modification. In a wide pH range, Fe3O4/BC showed high adsorption performance for TCs, with an adsorption rate of over 85%. Chemical adsorption was the main adsorption mechanism, including hydrogen bonding, as well as π-π interactions, electrostatic interactions, intrapore diffusion and hydrophobic interactions. Moreover, reusability and obtaining cost of the material were analyzed, demonstrating its promising application prospects. This study will promote the application of Fe3O4/BC in the removal of antibiotics pollutants from water.

show abstract

Section: Obtaining Costs Estimationmentioning

confidence: 67%