Lignocellulosic pruning waste adsorbents to remove emerging contaminants from tyre wear and pharmaceuticals present in wastewater in circular economy scenario

被引:0
|
作者
Llado, J. [1 ]
Diaz, A. M. [2 ]
Lopez-Vinent, N. [3 ]
Perez, S. [3 ]
Montemurro, N. [3 ]
Cruz-Alcalde, A. [4 ]
Lao, C. [1 ]
Fuente, E. [2 ]
Ruiz, B. [2 ]
机构
[1] Univ Politecn Cataluna, Dept Min Ind & TIC Engn EMIT, Escola Politecn Super Engn Manresa, Manresa, Spain
[2] CSIC, Carbon Sci & Technol Inst INCAR, Biocarbon Circular & Sustainabil Grp, C Francisco Pintado Fe 26, Oviedo 33011, Spain
[3] Inst Diagnost Ambiental & Estudios Agua IDAEA, Dept Environm Chem, Water & Soil Res Grp, Barcelona, Spain
[4] Univ Barcelona UB, Dept Chem Engn & Analyt Chem, Barcelona, Spain
关键词
Poplar residues; One-step alkaline activation; Efficient activated carbons; Organic pollutants; Adsorption; ACTIVATED CARBON; TIRE; PARTICLES; MICROPOLLUTANTS; ADSORPTION; CHEMICALS; BIOCHAR; POPLAR; SOILS; FATE;
D O I
10.1016/j.biortech.2024.131847
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The following work explores a sustainable approach to repurpose organic waste from poplar pruning into lignocellulosic waste-based activated carbons (LPWACs) through environmentally friendly thermochemical processes and in line with circular economy principles. The developed LPWACs, activated by potassium hydroxide (KOH) at two different temperatures and weight ratios, exhibited promising textural properties with BET surface area (SBET) and total pore volume (VTOT) reaching up to 1336 m2 center dot g-1 and 0.588 cm3 center dot g-1, respectively. In addition, they displayed a developed microporous structure with a significant oxygen content (up to 11 %). These activated carbons were used to remove five emerging organic pollutants from the leaching of tyre wear particles (TWPs) and pharmaceuticals present in water. The increase in oxygen groups had a negative effect on the adsorption capacity of 1H-benzotriazole (BZTL), while electrostatic influences hindered diatrizoic acid (DZT) adsorption. LPWACs effectively remove pharmaceutical and tyre contaminants, supporting the circular economy in water treatment.
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页数:10
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