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Woranon Thijina. Removal of manganese and iron from natural waters by using biochars. Master's Degree(Advanced and Sustainable Environmental Engineering ). Kasetsart University. Office of the University Library. : Kasetsart University, 2018.
Removal of manganese and iron from natural waters by using biochars
Name: Woranon Thijina
Classification :.LCCS: TD758.5.H43
LCSH:
Managanese
LCSH:
Iron
LCSH:
Biochar
-- Utilization
Abstract:
This research was carried out to investigate the ability of biochars (BC1-BC5) in removal of manganese (Mn) and iron (Fe) in natural waters. Batch experiments were conducted using synthetic wastewaters containing Mn or Fe at different initial concentrations (5-50 mg/L) and pHs (as-received, 4.0, and 9.0), with a constant BC1 dosage of 1 g/L. The results showed that removal efficiencies decreased with increasing initial concentrations. The removal mechanisms of Mn and Fe combined the effects of adsorption and precipitation. At acidic condition, the adsorption of Mn or Fe provided higher contribution on Mn and Fe removal than precipitation. As the solution pH became higher (basic condition), Mn and Fe removal were mainly caused by precipitation. Different biochars (BC1-BC5) were used to remove Mn and Fe in natural waters. Two sources of natural waters were collected from the ponds near gold mines in Loie and Phichit provinces, designated as HL and RT, representing Mn-rich (11 mg/L) and Fe-rich (37 mg/L) water samples, respectively. Experimental results demonstrated that Mn and Fe in natural waters were successfully removed by adsorption process using BC1, with removal efficiencies > 96%, while BC2-BC5 provided the removal efficiencies >92%. The Freundlich isotherm model fit well with the data obtained from Mn and Fe adsorption on biochars. The Freundlich constant (KF) and 1/n were 0.8774 mg/g and 0.28394 for Mn, respectively, and 1.3398 mg/g and 0.23684 for Fe, respectively.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Chalor Jarusutthirak
Role:
Thesis Advisor
Name: Supamas Danwittayakul
Role:
Thesis CO-Advisor
Created:
2018
Modified:
2025-07-02
Issued:
2025-07-02
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2561/woranon-thi-all.pdf
CallNumber:
TD758.5.H43 .W67
eng
DegreeName: Master of Science
Level: Master's Degree
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
-0.965876 วินาที
Woranon Thijina
| Title | Contributor | Type |
|---|---|---|
| Removal of manganese and iron from natural waters by using biochars
มหาวิทยาลัยเกษตรศาสตร์ Woranon Thijina | Chalor Jarusutthirak Supamas Danwittayakul | วิทยานิพนธ์/Thesis |
Chalor Jarusutthirak
| Title | Creator | Type and Date Create |
|---|---|---|
| Retardation of phosphorus and potassium released from compost using complex films of chitosan and pectin
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Thesis Committee : Asst.Prof.Dr.Chalor Jarusutthirak Asst.Prof.Dr.Anawat Pinisakul Asst.Prof.Dr.Sudtida Pliankarom Thanasupsin Asst.Prof.Dr.Wunpen Chonkaew | Samley Sok | วิทยานิพนธ์/Thesis |
| Estimation of methane emission from solid waste landfill site in Savannakhet province, Lao PDR
มหาวิทยาลัยเกษตรศาสตร์ Chalor Jarusutthirak | Phoukham Niravanh | วิทยานิพนธ์/Thesis |
| Application of simulation models for estimation of benzene emission on Floating Storage and Offloading (FSO) and health risk assessment of benzene exposure
มหาวิทยาลัยเกษตรศาสตร์ Chalor Jarusutthirak;Pawee Klongvessa | Chalee Seekramon. | วิทยานิพนธ์/Thesis |
| Removal of manganese and iron from natural waters by using biochars
มหาวิทยาลัยเกษตรศาสตร์ Chalor Jarusutthirak;Supamas Danwittayakul | Woranon Thijina | วิทยานิพนธ์/Thesis |
Supamas Danwittayakul
| Title | Creator | Type and Date Create |
|---|---|---|
| Removal of manganese and iron from natural waters by using biochars
มหาวิทยาลัยเกษตรศาสตร์ Chalor Jarusutthirak;Supamas Danwittayakul | Woranon Thijina | วิทยานิพนธ์/Thesis |