Characterization and quantification of biochar alkalinity

• Published in: Chemosphere (Oxford) Vol. 167; pp. 367 - 373
• Main Authors: Fidel, Rivka B., Laird, David A., Thompson, Michael L., Lawrinenko, Michael
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.01.2017
• Subjects: Alkalinity; alkalis; Biochar; carbon; Carbonate; carbonates; Cations; cellulose; Cellulose - chemistry; Charcoal - chemistry; corn stover; elemental composition; feedstocks; Functional groups; Hydrogen-Ion Concentration; Organic; soil; Soil - chemistry; Soil Pollutants - analysis; wood; Wood - chemistry; CEC; Organic; VM; pH; Carbonate; Alkalinity; XRD; Biochar; FC; XRF; Functional groups

Lack of knowledge regarding the nature of biochar alkalis has hindered understanding of pH-sensitive biochar-soil interactions. Here we investigate the nature of biochar alkalinity and present a cohesive suite of methods for its quantification. Biochars produced from cellulose, corn stover and wood...