Development of paper sludge ash-based geopolymer and application to treatment of hazardous water contaminated with radioisotopes

Li, Z.*; Onuki, Toshihiko; Ikeda, Ko*

Materials, 9(8), p.633_1 - 633_17, 2016/08

https://doi.org/10.3390/ma9080633

Geopolymer samples were prepared at room temperature using paper sludge ashes and immobilization of Sr and Cs in these samples were evaluated by short-term leaching test. The prepared geopolymer samples were semi-crystalline and porous. For the leaching test, the geopolymer samples containing 1 weight % of strontium nitrate or cesium nitrate were prepared, crushed to be finer than 4 mm in size, and immersed in a phthalic salt buffer (pH4) for 6 h. About 0.2% of Sr and 1.3% of Cs were leached from the geopolymer samples.

In-situ measurement of dissolved methane concentration in the underground by the methane sensor, 1; Influence of types of gas and water flow on the sensor's output

Hyodo, Masayuki*; Oga, Kotaro*; Kunimaru, Takanori; Yamamoto, Yoichi*; Sasaki, Katsuji*; Masson, M.*

no journal, , 

no abstracts in English

Hybrid method combining atomic model and continuum

Kim, G.; Senda, Yasuhiro*

no journal, ,