Effect of media type and particle size on dissolved organic carbon release from woody filtration media

Leaching patterns from wood of different tree species and environmental implications related to wood storage areas

“…), probably due to the distance for the substances to diffuse from the core of the particle to the water phase and the fact that bigger particles have less contact surface (Libralato et al . ; McLaughlan & Al‐Mashaqbeh ). However, besides particle size, another variable is likely to play an important role; when comparing Figs and , it is also observed that for pine sawdust, the DOC released was six times higher than the one released by pine wood chips.…”

“…A preview study has shown significant differences among tree species regarding the leaching patterns for DOC, phenols, pH and tannins and lignin (Svensson ). Many studies, however, focus on the difference between soft and hard wood (McLaughlan & Al‐Mashaqbeh ; Ximenes et al . ).…”

Mitigation of sulfate reduction and nitrous oxide emission in denitrifying environments with amorphous iron oxide and biochar

“…Biochar has been shown to improve soil function through increased cation and anion exchange capacity, soil water retention, and enhanced microbial growth (Lehmann et al, 2011;McLaughlan and Al-Mashaqbeh, 2009). Proposed mechanisms by which biochar will increase microbial activity include provision of labile carbon, increased nutrient retention, and increased microorganism habitat given the high specific surface area and micropore volume of biochar (Lehmann et al, 2011;Steiner et al, 2007;Warnock et al, 2007).…”

Effect of biochar on leaching of organic carbon, nitrogen, and phosphorus from compost in bioretention systems

“…Such release can be of environmental concern if the leachate flows directly into surface or ground waters. Considerable amounts of organic carbon, mainly in the form of DOC, can leach from mature compost (Christensen and Nielsen, 1983;McLaughlan and Al-Mashaqbeh, 2009;Beesley, 2012), but also inorganic constituents can leach out (Christensen, 1984;Christensen and Tjell, 1984;Li et al, 1997;Hsu and Lo, 2001). If the compost were mixed with biochar, this could reduce the undesired leaching of constituents.…”