SBR反应器的计算(1)运行周期反应器个数1=4n,周期时间=6th,周期数2=4n,每周期处理水量3700m。每周期分进水,曝气,沉淀,排水4个阶段。其中进水时间:1224241.544ethnn格局滗水器设备性能,排水时间=0.5dthMLSS取4000mg/L。污泥界面沉降速度:41.2641.264.6104.61040001.33uXm曝气池滗水高度1=1.2hm,安全水渠ε=0.5m。沉淀时间:1+ε1.2+0.5===1.3)1.33shthu(曝气时间:=---=6-1.5-1.3-0.5=2.7()aesdttttth反应时间:2.7===0.45)6atehT((2)曝气池体积V出水溶解5BOD估算:取=20/zSmgL,0.06dK,0.75f,=20/eCmgL。7.1207.10.060.752013.6/ezdeSSKfCmgL曝气段污泥龄-1θ=25cd,污泥产率系数γ=0.6,=0.06dK030.6112002520013.61008510.4540000.7510.0625cedcYQSSVmeXfK(3)污泥负荷05112002000.13/0.45400010085sQSNkgBODkgMLSSeXV(4)剩余生物污泥量dK与水温有关水温为20℃时(20)=0.06dK-20-1(21)(20)=1.04=0.0624TddKKd()0211000100020013.640000.6112000.450.06100850.7510001000435.7/edvSSXXYQeKVfkgd剩余非生物污泥设=0.7bf02202011120010.70.751064/10001000eSbCCXQffkgd剩余污泥总量21437.510641499.7/SvXXXkgd(5)复核出水5BOD02224242007.9/24240.01840000.752.74chaSLmgLKXftn符合排放要求(6)设计需氧量设:有机物氧化需氧系数'=0.5a,泥需氧系数'=0.12b''040000.51120020013.60.450.12100850.7510002677.61(/)111.57(/)eAORaQSSebXVfkgdkgh(7)标准需氧量1.压力修正系数取50.9110apP5550.91100.91.013101.01310P2.微孔曝气头安装在距池底0.3m处,淹没深度H=4.7m.其绝对压力为35559.8101.013100.098104.71.4710bPPHPa3.微孔曝气头氧转移效率AE为20%,气泡离开水面时含氧量:2112110.2100%100%17.5%79211792110.2AtAEQE4.水温为21℃,清水氧饱和度21=8.99/sCmgL()。曝气池内平均溶解汤饱和度:521551.471017.58.9910.33/2.20610422.0261042btsbsPQCCmgL标准需氧量取=0.85,=0.95,20sC=9.17mg/L20201.024STsbTAORCSORCC2120111.579.17172.04(/)0.850.950.910.3321.024kgL空气用量33172.042867.3(/)47.8(/min)0.30.30.20ASORmhmE(8)曝气池布置SBR反应池共设4座,每座曝气池长31.8m,宽15.9m,水深5m,超高0.5m,有效体积2528.13m,4座反应池总有效体积10112.43m.