| 1. |
- Helder, M., et al.
(author)
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Electricity production with living plants on a green roof : Environmental performance of the plant-microbial fuel cell
- 2013
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In: Biofuels, Bioproducts and Biorefining. - : Wiley. - 1932-104X .- 1932-1031. ; 7:1, s. 52-64
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Journal article (peer-reviewed)abstract
- Several renewable and (claimed) sustainable energy sources have been introduced into the market during the last century in an attempt to battle pollution from fossil fuels. Especially biomass energy technologies have been under debate for their sustainability. A new biomass energy technology was introduced in 2008: the plant-microbial fuel cell (P-MFC). In this system, electricity can be generated with living plants and thus bioelectricity and biomass production can be combined on the same surface. A green roof producing electricity with a P-MFC could be an interesting combination. P-MFC technology is nearing implementation in the market and therefore we assessed the environmental performance of the system with an early stage life cycle assessment (LCA). The environmental performance of the P-MFC is currently worse than that of conventional electricity production technologies. This is mainly due to the limited power output of the P-MFC and the materials presently used in the P-MFC. Granular activated carbon (anode material), gold wires (current collectors), and Teflon-coated copper wires (connecting anode and cathode) have the largest impact on environmental performance. Use of these materials needs to be reduced or avoided and alternatives need to be sought. Increasing power output and deriving co-products from the P-MFC will increase environmental performance of the P-MFC. At this stage it is too early to compare the P-MFC with other (renewable) energy technologies since the P-MFC is still under development.
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| 2. |
- Hendrickx, T.L.G., et al.
(author)
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High specific activity for anammox bacteria enriched from activated sludge at 10°C
- 2014
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In: Bioresource Technology. - : Elsevier BV. - 0960-8524 .- 1873-2976. ; 163, s. 214-222
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Journal article (peer-reviewed)abstract
- Anammox in the water line of a waste water treatment plant (WWTP) saves energy for aeration and allows for recovering biogas from organic material. Main challenges for applying the anammox process in the water line are related to the low temperature of
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| 3. |
- Kampman, Christel, 1984, et al.
(author)
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Effect of temperature on denitrifying methanotrophic activity of 'Candidatus Methylomirabilis oxyfera'
- 2014
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In: Water Science and Technology. - : IWA Publishing. - 0273-1223 .- 1996-9732. ; 70:10, s. 1683-1689
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Journal article (peer-reviewed)abstract
- The activity of denitrifying methanotrophic bacteria at 11-30 °C was assessed in short-term experiments. The aim was to determine the feasibility of applying denitrifying methanotrophic bacteria in low-temperature anaerobic wastewater treatment. This study showed that biomass enriched at 21 °C had an optimum temperature of 20-25 °C and that activity dropped as temperature was increased to 30 °C. Biomass enriched at 30 °C had an optimum temperature of 25-30 °C. These results indicated that biomass from low-temperature inocula adjusted to the enrichment temperature and that low-temperature enrichment is suitable for applications in low-temperature wastewater treatment. Biomass growth at ≤20 °C still needs to be studied.
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