Optimisation of slow-pyrolysis process conditions to maximise char yield and heavy metal adsorption of biochar produced from different feedstocks
| Type | Article |
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| Original language | English |
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| Pages (from-to) | 574-581 |
| Number of pages | 8 |
| Journal | Bioresource Technology |
| Volume | 214 |
| Issue number | N/A |
| Early online date | 07 May 2016 |
| DOI | |
| Publication status | Published - 01 Aug 2016 |
| Links |
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| Permanent link | Permanent link |
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Abstract
The objective of this work was to identify biomass feedstocks and optimum pyrolysis process conditions to produce a biochar capable of adsorbing metals from polluted groundwater. Taguchi experimental design was used to determine the effects of slow-pyrolysis process conditions on char yield and zinc adsorption. Treatments were repeated using six candidate feedstocks (Lolium perenne, Lolium perenne fibre, Miscanthus x giganteus, Salix viminalis, Fraxinus excelsior and Picea sitchensis) and the resultant chars were tested for metal adsorption performance. Chars produced from L. perenne and its extracted fibre displayed the greatest zinc adsorption performance and removed 83.27-92.96% respectively. Optimum process conditions in terms of both char yield and zinc adsorption performance were achieved from slow-pyrolysis at 300 °C for 2 h using a feedstock with a particle size of less than 1 mm.
Keywords
- Remediation, Zinc, Taguchi-method, Bio-refinery, Grasses, Metals, Heavy/chemistry, Water Pollutants/chemistry, Fraxinus/metabolism, Charcoal/chemistry, Biomass, Hot Temperature, Lolium/metabolism, Groundwater/chemistry, Adsorption, Bioreactors, Environmental Restoration and Remediation/methods, Environmental Pollution, Picea/metabolism, Salix/metabolism
Documents
- Optimisation of slow-pyrolysis conditions in maximise char yield and heavy metal adsorption of biochar produced from different feedstocks
Accepted author manuscript, 681 KB, PDF