污泥含水率-密度关系图

含水率理论密度实测密度备注99.951.00031.003流体99.501.00311.006流体99.001.00621.015流体98.001.01251.020流体97.001.01881.025流体96.001.02521.030流体95.001.03171.035流体94.001.03831.050流体92.001.05181.060流体90.001.06561.070流体85.001.10171.105流体82.001.12461.128膏体80.001.14041.150塑性78.001.170塑性75.001.190塑性70.001.210塑性65.001.220泥饼状60.001.200泥饼状55.001.000泥饼状，较干50.000.900泥饼状，较干30.000.70010.000.550理论算式：d=100*2.6/[2.6*wt+(100-wt)]d=2.6*(1-wt%)+1*wt%SS：100mg/L-------99.9%(含水率)-------0.1%(含固率)污泥的主要成分是黏土，密度按[d土]≈2.6g/ml;20℃水的密度[d水]=1g/ml。则：含水97.6%的污泥密度d₁=2.6×0.024+1×0.976=1.038；含水94.0%的污泥密度d₂=2.6×0.060+1×0.940=1.096；由于污泥排放和输送过程受力会被压缩，所以理论计算值和实测值差别较大，尤其在85%含水率以下。沉砂池排放的污泥（含砂率较高）含水率约为60%，密度约为1.5。含水率为60%的污泥如果是板框机压滤得到的，密度大约是；如果是混合得到的，密度大约是污泥含水率-密度关系图密度和颗粒大小，堆积情况有关Fig.1污泥含水率-密度关系0.010.020.030.040.050.060.070.080.090.0100.00.500.600.700.800.901.001.101.201.301.401.50密度含水率