Water De-Chlorination by Non-Modified and Modified Biochar Derived from Date Palm

• Autorzy: Alfaiz Sundus Khaleel , Yaseen Dina Ali , Alawadi Wisam A.

Identyfikatory

DOI

10.12911/22998993/173490

• Języki publikacji: EN

Abstrakty

EN

The present study investigates the reduction of free residual chlorine (FC) from aqueous solution using non-modified biochar (NM-B) and chemically modified biochar (M-B) derived from date palms. The role of biochar dose, biochar particle size, reaction time, solution pH, and initial concentration of FC on adsorption efficiency were assessed. The optimum contact time for higher FC uptake was reached after 20 min using NM-B and 8 min using M-B, with a biochar dose of 10 g/L. The optimum pH values and biochar size for higher FC adsorption were 4 and 0.6 mm, respectively. Higher removal was reached at 88% using NM-B and 96% using M-B. The pseudo-second-order model matched well with the kinetic outcomes. Langmuir isotherm was fitted well with the equilibrium results of FC uptake on NM-B and M-B, with regression coefficient (R2) values of 0.98 and 0.998, in that order. The separation parameter was within the limits of favorable adsorption of FC by both biochars. The higher uptake capacity (0.215 mg/g) was linked with the M-B, indicating that chemical modification of biochar was successful in increasing FC uptake from aqueous solutions. This study confirmed that utilizing biochar derived from date palms for FC removal is a very beneficial and cost-effective solution, especially in the countries that are considered the largest date producer in the world.

Słowa kluczowe

EN

adsorption; biochar; chemical modification; date palm; free chlorine

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2023
• Tom: Vol. 24, nr 12
• Strony: 377--387
• Opis fizyczny: Bibliogr. 30 poz., rys., tab.

Twórcy

autor

Alfaiz Sundus Khaleel

• Department of Material Engineering, College of Engineering, Univesity of Basrah, P.O. Box 49, Basrah, Iraq

• https://orcid.org/0000-0002-7108-5254

autor

Yaseen Dina Ali

• Department of Civil Engineering, College of Engineering, Univesity of Basrah, P.O. Box 49, Basrah, Iraq

• https://orcid.org/0000-0002-0674-900X

autor

Alawadi Wisam A.

• Department of Civil Engineering, College of Engineering, Univesity of Basrah, P.O. Box 49, Basrah, Iraq

• https://orcid.org/0000-0003-4083-3245

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).