【作者】 王夏慧；

【导师】 金建华； 姜应和；

【作者基本信息】 武汉理工大学 ， 市政工程， 2004， 硕士

【摘要】 针对我国大部分南方污水处理厂进水浓度远低于设计值，不仅降低处理效率，而且浪费能耗的问题，我们在武汉市水质净化厂进行了城市污水生物强化处理的短时曝气试验研究。 试验是生产性正交试验。在考察和分析了影响系统反应的各个因素之后，确定了该厂的进水水泵台数和曝气池内活性污泥浓度两个试验的因子，并分别确定了两个因子的三个水平。 在试验的前期准备工作阶段，课题组调查了武汉市水质净化厂的运行现状，了解了该厂的水质特征并据此确定试验的取样时间，还通过进行污泥排放及增长试验掌握了调控活性污泥系统的方法。 正交试验的九个周期的每个周期分为系统运行稳定和水质检测两个阶段。水质检测阶段分别取进水浓度分别为低、中、高三个时段的曝气池的进水和二沉池的出水进行检测，进水检测COD、BOD、SS、TN和TP，出水分别检测COD、BOD、SS、氨氮和磷酸盐。试验分析采用COD去除率作为评价指标，其余作为判断出水是否达标的指标。 试验确定武汉市水质净化厂的最佳工况点为进水水泵是3台，活性污泥浓度是1600mg／L。本文最后对该厂的运行提出建议并进行了分析。更多还原

【Abstract】 In order to solve the problem that the inlet concentration in mostly south wastewater treatment plant is below the outlet concentration, we make our bioaugmenting short-time aeration experiment in Wuhan Wastewater Treatment Plant (WWTP) .The experiment is full-scale orthogonal experiment. Have reviewed and analyzed every complication that affect system reaction, the amount of inlet pump and the concentration of activated sludge in aeration tank been confirmed as two experiment complications, three levels of these two complications have been confirmed respectively too.At the stage of arranged, task group investigated present condition in WWTP, found out the characteristics of contaminants in this plant and made out the sampling time. Moreover, we hold the method that adjust and control the activated sludge system by means of making sludge discharge and grow experiment.Every cycle of orthogonal experiment is divided into two phase as stabilization and chemical test. In the phase of chemical test, inlet of aeration tank and discharge of secondary sedimentation tank been tested at the time that the raw water concentration are low, middle and high. The inlet test COD,BOD,SS,TN and TP, the discharge test COD,BOD,SS, ammonia nitrogen and phosphate. Experiment analysis adopt the removal percentage of COD as evaluating indicator, others to estimate whether the discharge reach standard.The experiment educe that the optimal working point of WWTP is 3 pumps and activated sludge concentration is 1600mg/L. Advice on running of WWTP also been put forward finally in this paper.更多还原