[ Objective ] The study aimed at analyzing the solidification reaction in solidified sludge matrices through the variation of water content. [ Method] Firstly, the original sludge was solidified by different masses of...[ Objective ] The study aimed at analyzing the solidification reaction in solidified sludge matrices through the variation of water content. [ Method] Firstly, the original sludge was solidified by different masses of cement and dry stone powder, then according to the changes of water content in the solidified sludge matrices, we discussed the effects of various cement and dry stone powder masses on the solidification reaction in the solidified sludge matrices at different time. [Result ] In the solidified sludge matrices, water content decreased with reaction time, and the larger the solidifying agents＇ mass, the lower the water content. The solidification reaction occurred mainly in the first seven days according to the changes of water content, and relative water content increased with reaction time. In addition, the solidification reaction was accelerated due to the increase of the solidifying agents＇ mass, and the types of solidifying agent had an important effect on the solidification reaction. [Condusion] The variation of water content could reflect the extent of solidification reaction, and the forecasting formula of the solidification reaction based on the relative water content is suitable for solidified sludge and other polluted soils.展开更多
A reaction interface between the aluminum and K_2ZrF_6 during molten salt reaction process was frozen by quenching the mold in water, and the interface structure was analyzed to determine the formation process of Al_3...A reaction interface between the aluminum and K_2ZrF_6 during molten salt reaction process was frozen by quenching the mold in water, and the interface structure was analyzed to determine the formation process of Al_3Zr. Results show that a clear conical interface existed between the K_2ZrF_6 and aluminum. A zirconium accumulation layer with the thickness of about 2–3 lm was formed at the aluminum side of the interface. Many initially formed Al_3Zr particles（with the size of 0.4–16 lm） distributed in this layer, most of which located at the interface. The morphology of Al_3Zr particles is closely related with their size. For the size of 0.4–1 lm, the Al_3Zr appeared as globular and ellipsoid shapes. When it grew to the size of 1–2 and 2–16 lm, it exhibited the rule cube shape, and rule cuboids shape, respectively.展开更多
基金Supported by the National Natural Science Foundation of Higher Education in Jiangsu Province (09KJD560002 ) Foundation of Suzhou Science and Technology University (XKY201008)
文摘[ Objective ] The study aimed at analyzing the solidification reaction in solidified sludge matrices through the variation of water content. [ Method] Firstly, the original sludge was solidified by different masses of cement and dry stone powder, then according to the changes of water content in the solidified sludge matrices, we discussed the effects of various cement and dry stone powder masses on the solidification reaction in the solidified sludge matrices at different time. [Result ] In the solidified sludge matrices, water content decreased with reaction time, and the larger the solidifying agents＇ mass, the lower the water content. The solidification reaction occurred mainly in the first seven days according to the changes of water content, and relative water content increased with reaction time. In addition, the solidification reaction was accelerated due to the increase of the solidifying agents＇ mass, and the types of solidifying agent had an important effect on the solidification reaction. [Condusion] The variation of water content could reflect the extent of solidification reaction, and the forecasting formula of the solidification reaction based on the relative water content is suitable for solidified sludge and other polluted soils.
基金Supported by the National Natural Science Foundation of China(Nos.51204053,51374067&51674078)Central University Basic R&D Operating Expenses(Nos.N130409005,N130709001&N130209001)
文摘A reaction interface between the aluminum and K_2ZrF_6 during molten salt reaction process was frozen by quenching the mold in water, and the interface structure was analyzed to determine the formation process of Al_3Zr. Results show that a clear conical interface existed between the K_2ZrF_6 and aluminum. A zirconium accumulation layer with the thickness of about 2–3 lm was formed at the aluminum side of the interface. Many initially formed Al_3Zr particles（with the size of 0.4–16 lm） distributed in this layer, most of which located at the interface. The morphology of Al_3Zr particles is closely related with their size. For the size of 0.4–1 lm, the Al_3Zr appeared as globular and ellipsoid shapes. When it grew to the size of 1–2 and 2–16 lm, it exhibited the rule cube shape, and rule cuboids shape, respectively.
