污水污泥烧结页岩砖性能试验研究

本实验将高含水率污水污泥与来源广泛的页岩进行混合,在固定污泥掺量,变化烧成温度、升温速率和保温时间等因素的基础上进行实心和多孔污泥页岩烧结砖的烧制。结果表明,污泥掺量30%时可以烧制出体积密度1600 kg/m3左右,抗压强度10MPa以上的实心砖,在此基础上对污水污泥对烧结砖的性能影响进行了实验研究。

Experimental Study on Properties of Shale Bricks with Polluted Water and Sludge

This experiment is based on mixing the polluted water and sludge with the shale.By the definite quantity of sludge,the firing temperature,heating rate and heat preservation time are changed to manufacture the solid and porous shale bricks.The results show that the shale bricks with the feature of the bulk density about 1600 kg/m3 and the compressive strength above 10 N/mm2 can be manufactured when the sludge ash is at 30 percent.The experimental study on the impact of the polluted water and sludge on the performance of the shale bricks is put forward in the paper.