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Leaching patterns from wood of different tree species and environmental implications related to wood storage areas
Author(s) -
Svensson Henric,
Marques Marcia,
Kaczala Fabio,
Hogland William
Publication year - 2014
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12034
Subject(s) - quercus robur , hardwood , leaching (pedology) , lignin , chemistry , sawdust , phenols , organic matter , dissolved organic carbon , botany , environmental chemistry , pulp and paper industry , ecology , biology , organic chemistry , soil water , engineering
Batch tests were carried out with sawdust obtained from oak ( Q uercus robur ), maple ( A cer platanoides ), pine ( P inus sylvestris ), beech ( F agus sylvatica ) and wood chips from oak and pine. Leaching of organic compounds expressed as dissolved organic carbon ( DOC ) in mg/kg of dry mass took place during the first 24 h. The following additional variables were analysed: pH , conductivity, colour, phenols, tannins and lignin, and biochemical oxygen demand ( BOD 7 ). When leachates obtained with oak wood chips and pine wood chips were compared, no significant difference was observed. However, in batch tests with sawdust, DOC released by oak (90 000 mg/kg) was significantly higher ( P = 0.0001) than DOC released by pine (30 000 mg/kg). The results suggest that particle size is not the only variable affecting the leaching of organic compounds from wood. Regarding BOD , colour [platinum‐cobalt ( P t‐ C o)], phenols, tannins and lignin, the leaching patterns differed among species, and oak was the species with the highest released values.