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Bensaida, K.*; Maamoun, I.; Eljamal, R.*; Falyouna, O.*; 杉原 裕司*; Eljamal, O.*
Energy Conversion and Management, 249, p.114877_1 - 114877_12, 2021/12
被引用回数：35 パーセンタイル：95.72(Thermodynamics)Microbial fuel cells (MFC) are a versatile technology for power generation from biodegradable solid wastes. This study examines the addition of bare and coated Fe0 nanoparticles to the anolyte of a lab-scale MFC for the first time. Four different coating ratios (0.1, 0.2, 0.5, and 1.0) were separately added and comparatively evaluated for power generation. The study examined the use of four different waste sludge substrates, different pH, and aerobic enriched cathode chambers effect on wastewater treatment and current production. Results showed that coating ratio of 0.2 was promising to achieve 4 times increase in the voltage compared to the control and provide the maximal power density. The current generation stability was achieved under neutral pH, and the power density output is maintained high under anaerobic conditions. The addition of the coated Fe0 nanoparticles is an effective method to enhance electricity generation and sludge digestion. However, additional parameters should be considered.
小山 真一; 鈴木 達也*; 小澤 正基
Energy Conversion and Management, 51(9), p.1799 - 1805, 2010/09
Fission reaction of 
U will create more than 40 elements and 400 nuclides. Among them, Ru, Rh, Pd (light Pt-G), Tc, Mo, Cs, Sr and Lns etc. are truly rare metals but rich in the FBR spent fuel as Nuclear Rare Metals (NRM). Different missions assigned due to the different radioisotopic properties to each NRM. In modern utilization of the NRM, the first step is the separation of them from high level liquid wastes, where catalytic electrolytic extraction (CEE) method would be applicable. The paper suggests the reality on the recycle of NRM, with a recommendation to use light Pt-G and Tc as hydrogen production catalysts after proper stockpile.
小山 真一; 鈴木 達也*; 小澤 正基
Energy Conversion and Management, 51(9), p.1799 - 1805, 2010/09
被引用回数：29 パーセンタイル：71.33(Thermodynamics)Uの核分裂により40元素及び400を超える核種が生成する。特に、Ru, Rh, Pd, Tc, Mo, Cs, Srや希土類が多く生成する。これを原子力レアメタルとする。高速炉における使用済燃料1トンあたりのPd, Ru, Rh及びTc生成量は、それぞれ11kg, 13kg, 4kg及び3kgと評価される。また、MoやDyといった幾つかの希土類は5年程度の冷却で非放射性といえる状況になる。
Ru, 
Ru, 
Rh, 
Pd及び
Agといった核種は、同位体分離を行わなくても安定に存在し、高レベル廃液から分離した後、触媒電解法で得られる。本論文は、原子力レアメタルのリサイクルと軽白金族元素利用を提案する。原子力レアメタルと超半減期FPの分離は燃料サイクルのミッションに新たな方向性を与えるだけでなく、現放射性廃棄物処理の劇的な改善効果を生む。
