论文部分内容阅读
依据惯性效应理论对海港水厂斜管池、平流池的混合反应沉淀工艺进行常规技术强化改造。结果表明 ,斜管池改造后 ,反应时间由 2 5min缩短为 8 5min ,沉淀池负荷达 3 5mm/s以上。净产水量达到 10 0万m3 /d ,较原设计 (5 0万m3 /d)提高 10 0 % ,较原实际运行水量 (3 0万m3 /d)提高 2 30 % ,同时沉淀池出水控制在 3NTU以下。平流池改造后 ,反应时间由 35min缩短为 12 5min ,净产水量达到 5 5万m3 /d ,较原设计水量 (3 5万m3 /d)提高 5 7 1% ,同时沉淀池出水控制在 3NTU以下 ;改造后混凝剂单耗较改造前降低 30 %。实践表明 ,微涡旋的离心惯性效应是絮凝的动力学致因 ,以此为依据的涡旋混凝低脉动沉淀技术有效地改善了常规给水处理工艺的絮凝沉淀动力环境 ,并具有效率高、水质好、成本低的特点。
Based on the theory of inertial effect, the conventional technique was used to rebuild the mixed reaction and sedimentation process of the inclined pipe pool and the advection tank in the harbor waterworks. The results showed that the reaction time was shortened from 25min to 85min and the sedimentation tank load was above 3 5mm / s after the transformation of the inclined cell. The net production of water reached 100,000 m3 / d, which is 100% higher than the original design (500,000 m3 / d) and 230% more than the actual actual operating water volume (300,000 m3 / d). Meanwhile, the sedimentation tank effluent control Below 3NTU. After the rebuild, the reaction time shortened from 35min to 125min, the net production of water reached 5500m3 / d, which was 571% more than that of the original designed water (35000m3 / d). Meanwhile, the sedimentation tank effluent was controlled at 3NTU The unit consumption of the coagulant after transformation is reduced by 30% compared with that before the transformation. The practice shows that the centrifugal inertial effect of micro-vortex is the kinetic cause of flocculation. Based on this, the vortex coagulation low-pulsation sedimentation technology effectively improves the dynamic environment of flocculation and sedimentation in the conventional water treatment process and has the advantages of high efficiency, Good water quality, low cost.