Brief description
In this study biochar was produced from one freshwater (FW) alga and one saltwater (SW) alga using commercial pyrolysis equipment, and the impact of biochar amendment on plant biomass production was assessed.
Full description
Algae represent a promising target for the generation of bioenergy through slow pyrolysis, leading to the production of biochar. This study reports experiments conducted on the production of freshwater and saltwater macroalgal biochar in pilotscale quantities, the physical and chemical characteristics of the biochars, and their impact on plant growth. The biochars are low in carbon (C) content, surface area and cation exchange capacity, while being high in ash and nutrients. Trace element analysis demonstrates that macroalgal biochar produced from unpolluted water does not contain toxic trace elements in excess of levels mandated for unrestricted use as a biosolids amendment to soils. Pot trials conducted using a C and nutrient-poor soil, without and with additional fertilizer, demonstrate dramatic increases between 15 and 32 times, respectively, in plant growth rate for biochar treatments compared with the no biochar controls, with additional smaller increases when fertilizer was added. Pot trials conducted using a relatively fertile agricultural soil showed smaller but significant impacts of biochar amendment over the controls.
Notes
The dataset is in open document spreadsheet (.ods) format.
Created: 2012
Data time period: 2011
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- Local : researchdata.jcu.edu.au//published/2dfc1b113c8422e7ba0776e23f3a3b62
- Local : jcu.edu.au/tdh/collection/a4e7a51e-80ec-47af-a069-c5bee0688f52
- Local : 958d5c40baff53e893ed35238fe27e34
