Systematic Characterization of Cow Manure Biochar and Its Effect on Salicornia herbacea L. Growth

Hyokyeong Shin, Danbi Chun, Ick-Rae Cho, Md. Abu Hanif (), Sung-Soo Kang, Lee Ku Kwac, Hong Gun Kim and Young Soon Kim ()
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Hyokyeong Shin: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Danbi Chun: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Ick-Rae Cho: Department of AgroAI, Jeonju University, Jeonju 55069, Republic of Korea
Md. Abu Hanif: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Sung-Soo Kang: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Lee Ku Kwac: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Hong Gun Kim: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
Young Soon Kim: Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea

Sustainability, 2024, vol. 16, issue 8, 1-14

Abstract: This study investigated the potential of biochar as a sustainable material for waste utilization and carbon sequestration in soil. Biochar was prepared from cow manure (CM) and applied to the soil. Biochar was processed by subjecting CM to various temperature ranges (400 [CMB400], 550 [CMB550], and 700 °C [CMB700]) under nitrogen gas (allowed to flow to restrict oxygen), with residence time set to 3 h. The characteristics of the biochar produced at each temperature were analyzed. The experiment was conducted for approximately 15 weeks with the laboratory temperature maintained between 24 and 26 °C. The growth rate of plants was obtained by measuring their length weekly, starting 4 weeks after crop establishment. CMB550 exhibited the highest specific surface area (117.57 m 2 g −1 ) and well-distributed pore size; therefore, it was mixed with the soil at a specific ratio and put in pots for the planting of Salicornia herbacea L. (glasswort) in the laboratory. The results demonstrated that adding biochar to soil increased plant growth and that the biochar could store organic carbon. In addition, an investigation of heavy metals demonstrated that samples with biochar had lower heavy metal concentrations in glasswort than those without because of the potential of biochar to adsorb heavy metals. By interacting with heavy metal ions in soil solution, the reactive sites and functional groups on the surface of biochar immobilize them and lessen their potentially detrimental effects on plant growth. Overall, biochar has the potential to be a valuable resource for waste management and environmental improvement.

Keywords: biochar; cow manure; soil improvement; Salicornia herbacea L.; halophytes (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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