瓜尔胶水凝胶微生物燃料电池

Sumin Kim
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引用次数: 0

摘要

微生物燃料电池(MFC)的主要因素是阳极及其周围产生电子的微生物。这项研究的重点是通过接种有助于向土壤中产生电子的微生物,提高MFC在植物MFC(PMFC)或类似水族馆的条件下的效率。瓜尔胶被用作基础结构,因为它可以培养微生物并通过与硼砂交联产生水凝胶。[1,2]将巨大芽孢杆菌添加到水凝胶中,因为它可以在硼砂的基本条件下存活,同时产生电子。[3] 还添加了葡萄糖来帮助培养细菌。然后,观察电压随B.megateium生长的变化。制备了由0.5%葡萄糖、1%瓜尔胶、10%硼砂和B.megateum培养基组成的化合物,体积比为1:25:1:1。这种化合物将被命名为GGB-B。由于B.megaterium的稳定生长,GGB-B能够保持水凝胶的形状,与对照相比,电压增加了250mV。将100g GGB-B放入烧杯中,并用水族馆土壤覆盖。添加了两种金鱼(Carassius auratus)。对金鱼的电压、pH和健康状况进行了为期9天的观察。结果是,与对照组(自来水)相比,电压增加了约150mV。pH降低约为1.3,显示pH为6.12。金鱼没有变化,水族馆土壤下的GGB-B在分解时与土壤融合。因此,当将产生电子的微生物(如B.megaterium)添加到瓜尔胶中时,微生物会在土壤中缓慢扩散,从而提高MFC的效率。这也适用于PMFC和类似水族馆的条件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
GUAR GUM HYDROGEL MICROBIAL FUEL CELL USING B.MEGATERIUM
The main factors of a microbial fuel cell (MFC) are the anode and the microorganisms around it that produce electrons. This research focuses on increasing the efficiency of a MFC in plantMFC (PMFC) or aquarium-like conditions by inoculating microorganisms that help produce electrons to the soil. Guar gum was used as a base structure as it can culture microorganisms and create a hydrogel by cross-linking with borax.[1,2] Bacillus megaterium was added to the hydrogel as it can survive under the basic conditions of borax while producing electrons.[3] Glucose was added as well to help culture the bacteria. Then, the change of voltage was observed along with the growth of B.megaterium. A compound consisting of 0.5% glucose, 1% Guar gum, 10% Borax, and B.megaterium culture medium was created with a volume ratio of 1:25:1:1 in each order. This compound will be named GGB-B. GGB-B was able to keep its shape as a hydrogel along with a voltage increase of 250mV compared to control due to the stable growth of B.megaterium. 100g of GGB-B was placed inside a beaker and was covered with aquarium soil. Two goldfishes (Carassius auratus) were added. Voltage, pH, and the health of goldfishes were observed for 9 days. The result was approximately a 150mV increase in voltage compared to control (tap water). pH decrease was about 1.3, showing a pH of 6.12. There was no change in the goldfishes, and the GGB-B under the aquarium soil fused with the soil as it disintegrated. Therefore, when electron-producing microorganisms such as B.megaterium are added to guar gum, the microorganisms would slowly spread over the soil, thereby increasing the efficiency of MFC. This could also apply to PMFC and aquarium-like conditions as well.
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