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Mineral Nitrogen Captured In Field-Aged Biochar Is Plant-Available, Ghulam Haider, Stephen D. Joseph, Diedrich Steffens, Christoph Muller, Sarasadat Taherymoosavi, David R. G Mitchell, Claudia Kammann
Mineral Nitrogen Captured In Field-Aged Biochar Is Plant-Available, Ghulam Haider, Stephen D. Joseph, Diedrich Steffens, Christoph Muller, Sarasadat Taherymoosavi, David R. G Mitchell, Claudia Kammann
Faculty of Engineering and Information Sciences - Papers: Part B
© 2020, The Author(s). Biochar may serve as a tool to sustainably mitigate climate change via carbon sequestration and by improving soil fertility. Biochar has shown to retain nitrate in its pores, which increases with an organic coating of the inner surfaces and residence time in soil (“aging”). Here we investigated the plant accessibility of the captured nitrate in field-aged biochar, as a pre-requisite for developing carbon-based N fertilization techniques with environmental benefits. Based on previous results, we hypothesized that part of the biochar-captured nitrate would remain unavailable for plants. A two-factorial greenhouse experiment was designed, where the N was …
Potential Of Porous Co3O4 Nanorods As Cathode Catalyst For Oxygen Reduction Reaction In Microbial Fuel Cells, Ravinder Kumar, Lakhveer Singh, A W. Zularisam, Faisal I. Hai
Potential Of Porous Co3O4 Nanorods As Cathode Catalyst For Oxygen Reduction Reaction In Microbial Fuel Cells, Ravinder Kumar, Lakhveer Singh, A W. Zularisam, Faisal I. Hai
Faculty of Engineering and Information Sciences - Papers: Part B
This study aims to investigate the potential of porous Co3O4 nanorods as the cathode catalyst for oxygen reduction reaction (ORR) in aqueous air cathode microbial fuel cells (MFCs). The porous Co3O4 nanorods were synthesized by a facile and cost-effective hydrothermal method. Three different concentrations (0.5 mg/cm2, 1 mg/cm2, and 2 mg/cm2) of Co3O4 nanorods coated on graphite electrodes were used to test its performance in MFCs. The results showed that the addition of porous Co3O4 nanorods enhanced the electrocatalytic activity and ORR …
Optimization Of Process Parameters For Production Of Volatile Fatty Acid, Biohydrogen And Methane From Anaerobic Digestion, M A. Khan, Hao H. Ngo, Wenshan Guo, Y Liu, Long D. Nghiem, Faisal I. Hai, L J. Deng, J Wang, Y Wu
Optimization Of Process Parameters For Production Of Volatile Fatty Acid, Biohydrogen And Methane From Anaerobic Digestion, M A. Khan, Hao H. Ngo, Wenshan Guo, Y Liu, Long D. Nghiem, Faisal I. Hai, L J. Deng, J Wang, Y Wu
Faculty of Engineering and Information Sciences - Papers: Part B
The anaerobic digestion process has been primarily utilized for methane containing biogas production over the past few years. However, the digestion process could also be optimized for producing volatile fatty acids (VFAs) and biohydrogen. This is the first review article that combines the optimization approaches for all three possible products from the anaerobic digestion. In this review study, the types and configurations of the bioreactor are discussed for each type of product. This is followed by a review on optimization of common process parameters (e.g. temperature, pH, retention time and organic loading rate) separately for the production of VFA, biohydrogen …
Thz Spectroscopic Characterization Of Biochar, Lucia Lepodise, R A. Lewis, Stephen D. Joseph, Joseph Horvat
Thz Spectroscopic Characterization Of Biochar, Lucia Lepodise, R A. Lewis, Stephen D. Joseph, Joseph Horvat
Faculty of Engineering and Information Sciences - Papers: Part A
Fertile dark soils made by humans in the Amazon basin, terra preta, have influenced the manufacture of the biochar based fertilizers. Different types of biochar exist but not all of them are good in improving the quality of the soil. FTIR was used to distinguish between the more and the less fertile biochar.
Lowering N2o Emissions From Soils Using Eucalypt Biochar: The Importance Of Redox Reactions, P Quin, Stephen D. Joseph, O Husson, Scott Donne, David R. G Mitchell, Paul G. Munroe, D Phelan, A L. Cowie, Lukas Van Zwieten
Lowering N2o Emissions From Soils Using Eucalypt Biochar: The Importance Of Redox Reactions, P Quin, Stephen D. Joseph, O Husson, Scott Donne, David R. G Mitchell, Paul G. Munroe, D Phelan, A L. Cowie, Lukas Van Zwieten
Faculty of Engineering and Information Sciences - Papers: Part A
Agricultural soils are the primary anthropogenic source of atmospheric nitrous oxide (N2OO), contributing to global warming and depletion of stratospheric ozone. Biochar addition has shown potential to lower soil N2OO emission, with the mechanisms remaining unclear. We incubated eucalypt biochar (550 °C) - 0, 1 and 5% (w/w) in Ferralsol at 3 water regimes (12, 39 and 54% WFPS) - in a soil column, following gamma irradiation. After N2OO was injected at the base of the soil column, in the 0% biochar control 100% of expected injected N2OO was released into headspace, declining to 67% in the 5% amendment. In …
Policy Instruments For Reducing Greenhouse Gas Emissions, Brian H. Andrew, Mary A. Kaidonis
Policy Instruments For Reducing Greenhouse Gas Emissions, Brian H. Andrew, Mary A. Kaidonis
Faculty of Commerce - Papers (Archive)
Benjamin Franklin once said that ‘In this world, nothing is certain but death and taxes’ and a significant body of the scientific literature including the IPCC have indicated that the climate change problem has become such a pressing issue that we now face a stark choice between the premature death of hundreds of millions of the people on this planet (from storm, flood, starvation, war or pestilence) and the use of taxation or other financial strategies to change the relative cost of carbon intensive sources of energy compared to the cost of ‘green’ sources of energy. A change in the …