Porous Haydite Used as Waste Water Filter Medium for Lake Sludge
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第3期
论文作者：何永佳 ZHAO Qiang U Linnu HU Shuguang
文章页码：544 - 547
摘 要：Porous haydite used as waste filter medium was prepared by dreging lake sludge to help solve the treatment problem of sludge and realize its reclamation. Several calcination regimes were considered and their effects on the pore structure and the properties such as the strength, the density, the filtering ability and the phosphate absorption ability of the haydite were investigated. For the mixture of 60% lake sludge and 40% fly ash in this experiment, the calcination regime with a pre-calcination period at about 600 ℃, a temperature keeping period at 1 200 ℃ and a moderate cooling rate are recommended to prepare haydite with reasonable pore structure and good performances for its usage as the waste water filter media.
何永佳1,2，ZHAO Qiang3，U Linnu1,4，HU Shuguang1,2
1. State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology)2. School of Materials Science & Engineering, Wuhan University of Technology3. Wuhan Clean Water Science & Technology CO., LTD4. School of Science, Wuhan University of Technology
摘 要：Porous haydite used as waste filter medium was prepared by dreging lake sludge to help solve the treatment problem of sludge and realize its reclamation. Several calcination regimes were considered and their effects on the pore structure and the properties such as the strength, the density, the filtering ability and the phosphate absorption ability of the haydite were investigated. For the mixture of 60% lake sludge and 40% fly ash in this experiment, the calcination regime with a pre-calcination period at about 600 ℃, a temperature keeping period at 1 200 ℃ and a moderate cooling rate are recommended to prepare haydite with reasonable pore structure and good performances for its usage as the waste water filter media.
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