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- W2384103566 abstract "A production method of for filter materials globular porous light sewage treatment has been studied.The coal gangues were taken as the main raw material and were sintered at high temperature with the addition certain amount of forming agent and expanding agent.The specific surface area and porosity have been regarded as the main factors for determining impacts of parameters,including proportioning,warming-up mode,water quantity added during globulation,final temperature,and roasting period at final temperature,on physicochemical properties of the filter material.A scanning electron microscope was used for analyzing the microstructure of the filter material,and analyses have been made on the sintering,expanding and porosity mechanism of coal gangues.Orthogonal tests were implemented to determine the optimal technological parameters.The main formula includes: the coal gangues of 50-99%,the fly ash of 0-25% and the expanding agent of 0.5-1.0%;the main property parameters for finished filter materials are the specific surface area of 6.0-8.6m2/g,the porosity of 40-50/%,the piling density of 0.9-1.1g/cm3,the wear rate less than 2.0%,and the average hole diameter of 85-190/μm.Coal gangues based for filter materials globular porous light sewage treatment present advantages of wide supply of raw material resources,simple production technology,non-pollution,low cost and high value-added products,and can be produced utilizing the equipment and process of existing cement plants." @default.
- W2384103566 created "2016-06-24" @default.
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- W2384103566 date "2008-01-01" @default.
- W2384103566 modified "2023-09-25" @default.
- W2384103566 title "Development of coal gangues based water treatment filter material" @default.
- W2384103566 hasPublicationYear "2008" @default.
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