- 著者
- 松原 寛 Lucy W. Fulmor T.G. Holderreed F.L.
- 出版者
- 環境資源工学会
- 雑誌
- 浮選 (ISSN:04277775)
- 巻号頁・発行日
- vol.1963, no.21, pp.53-58, 1963
1 0 0 0 油圧駆動式二軸せん断式破砕機『シュレッドキング』について
- 著者
- 松本 勝
- 出版者
- 環境資源工学会
- 雑誌
- 資源処理技術 (ISSN:09124764)
- 巻号頁・発行日
- vol.40, no.4, pp.166-168, 1993
- 著者
- 鈴木 祐麻 新苗 正和 真田 靖瑛
- 出版者
- 環境資源工学会
- 雑誌
- 環境資源工学 (ISSN:13486012)
- 巻号頁・発行日
- vol.59, no.2, pp.73-80, 2012 (Released:2012-09-05)
- 参考文献数
- 13
Moringa oleifera (M. oleifera) is one of the most widely spread Moringa species that grows quickly in the tropical belt. The objective of this study was to investigate the influence of the aqueous pH, initial turbidity of the synthetic kaolin turbid water, ionic strength, and humic substances on the efficiency of the M. oleifera coagulant. The experimental results showed that the coagulation efficiency was significantly enhanced by the presence of divalent cations such as Ca2+ or Mg2+, and slightly enhanced by lowering the aqueous pH from 9.0 to 4.0. It was also found that fulvic acid did not significantly affect the coagulation efficiency, while the initial turbidity and humic acid did. M. oleifera coagulant was effective for synthetic waters of an initial turbidity of 290 NTU. However, turbidity removal was not observed when the initial turbidity was lowered to 45 NTU. The presence of humic acid significantly increased the coagulant dosage required for turbidity removal. These obtained experimental observations were then used to discuss the influence of the water quality on the dominant coagulation mechanism.
1 0 0 0 OA ヒ素メチル化細菌の増殖特性とヒ素代謝
- 著者
- 宮武 宗利 林 幸男
- 出版者
- 環境資源工学会
- 雑誌
- 環境資源工学 (ISSN:13486012)
- 巻号頁・発行日
- vol.56, no.4, pp.153-158, 2009 (Released:2009-11-21)
- 参考文献数
- 12
- 被引用文献数
- 1 6
Biomethylation of arsenic is usually considered as a detoxification of arsenic because toxicity of most organic methylated arsenic is much less than that of inorganic arsenic. We investigated the feasibility of a novel bioremediation using an arsenic methylating bacterium. An arsenic methylating bacterium Bacillus cereus strain R2, isolated from soil in Miyazaki, was evaluated for growth characteristics and arsenic metabolism. The growth of strain R2 was inhibited in 50.0 mg As/l arsenic medium. Strain R2 metabolized arsenite (
1 0 0 0 OA スピネルLiMn2O4の合成とそのリチウム二次電池特性
1 0 0 0 OA 銅,亜鉛,鉛,含有廃棄物の処理とリサイクルの実態
1 0 0 0 OA トレーサビリティを核とした国際資源循環管理システムの構築
- 著者
- 胡 浩 小野田 弘士 中島 賢一 永田 勝也
- 出版者
- 環境資源工学会
- 雑誌
- 環境資源工学 (ISSN:13486012)
- 巻号頁・発行日
- vol.57, no.2, pp.53-60, 2010 (Released:2010-06-04)
- 参考文献数
- 15
In recent years, the exportation of resources such as iron, aluminum and copper scrap etc. including e-wastes, is increasing in Japan under the background of economic development in Asia, while exported resources sometimes are processed improperly in developing countries that breed environmental pollution. Therefore, an appropriate physical distribution management system with traceability for the resources is necessary. This paper attempts to build a model of International Resource Recycling System using Information Technology such as Global Position System (GPS), Radio Frequency Identification (RFID) tags, etc. between Japan and China by means of an international accepted traceability system. We also did a demonstration test between Japan and China. As a result, it is confirmed that the traceability system (covered from emission, collection in Japan to processing and landfill facilities in China) is an effective mean to ensure appropriate process of transportation, processing and final disposal of the residue of each stage.
1 0 0 0 OA 鉄粉,レモン汁および太陽光による細菌の殺菌・不活化
- 著者
- 鈴木 祐麻 Noor Diyana Binti Jamil 新苗 正和
- 出版者
- 環境資源工学会
- 雑誌
- 環境資源工学 (ISSN:13486012)
- 巻号頁・発行日
- vol.60, no.3, pp.138-144, 2013 (Released:2013-10-15)
- 参考文献数
- 18
The objective of this study was to investigate the disinfection efficiencies of E. coli and coliforms during the solar disinfection (SODIS) process with the presence of zero-valent iron and/or citric acid. The experimental results from a series of batch experiments showed that a treatment with neither sole UV-A (365 nm wavelength), zero-valent iron, nor citric acid effectively decreased the fraction of viable E. coli and coliforms under the experimental conditions investigated in this study. However, the simultaneous addition of zero-valent iron and citric acid during the UV-A illumination effectively decreased the fraction of viable E. coli and coliforms, meaning the co-existence of these three are required to effectively produce oxidants such as hydroxyl radical and ferryl ion. It was also demonstrated through field experiments that the technology proposed in this study can be easily implemented in our daily life using lemon juice rich in citric acid.