@article{fdi:010095076,
  title = {{E}valuation of biochar amendments to retain organic compounds in soil},
  author = {{H}maied, {A}. and {B}en {H}assen {T}rabelsi, {A}. and {H}ammecker, {C}laude},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he use of biochar is frequently recommended as a low-cost mitigation strategy. {B}iochar can be easily and inexpensively produced from various agricultural residues. {I}n this study, we produced and evaluated the impact of biochar derived from rosemary, bamboo, {S}t. {J}ohn's wort, olive tree wood, cypress, and palm trees on the mobility and retention of emerging contaminants. {T}he initial stage of this work involved the evaluation of the potential retention capacity of various biochars produced in a low-cost metallic kiln using local biomass residues. {M}ethylene blue was used as a proxy for organic contaminants to establish adsorption isotherms and quantify the biochars' specific surface area and adsorption capacities. {A}dsorption isotherms at 20°{C} were fitted to different models to assess their specific surface areas. {T}he results showed that biochars derived from rosemary, giant reed, and {S}t. {J}ohn's wort exhibited significant adsorption capacities. {A}verage adsorption capacities for cypress and olive tree were observed, while traditional olive and palm trees showed low adsorption capacities. {I}n the second stage, we evaluated the dynamic retention properties of biochar using soil monolith experiments. {W}e analyse methylene blue ({MB}) elution curves with and without biochar addition. {T}he presence of biochar in the soil monoliths significantly improved the retention of {MB}, demonstrating its effectiveness as an adsorbent filter. {S}pecifically, biochar-amended soil monoliths exhibited an increase in {MB} retention compared to unamended controls. {T}he breakthrough curves showed a delay in the elution of {MB} of 2,33 pore volumes in biochar-amended monolith increase in sorption capacity. {F}urthermore, the total recovered {MB} in the effluent was reduced by 66 % in biochar-treated samples. {T}hese quantitative findings underscore the robust potential of biochar for improving water quality by mitigating pollutant transport through the soil. {T}he results suggest that the application of biochar could serve as an effective strategy to reduce agricultural runoff contamination in vulnerable watersheds.},
  keywords = {},
  booktitle = {},
  journal = {{IOP} {C}onference {S}eries : {E}arth and {E}nvironmental {S}cience},
  volume = {1455},
  numero = {1},
  pages = {012005 [6 ]},
  ISSN = {1755-1307},
  year = {2025},
  DOI = {10.1088/1755-1315/1455/1/012005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010095076},
}