樟脑和富马酸废水的处理技术及工艺研究

【作者】 沈培新；

【导师】 严莲荷； 周申范；

【作者基本信息】 南京理工大学 ， 物理化学， 2004， 硕士

【摘要】 本文针对某化工厂产生的樟脑和富马酸生产废水进行了处理工艺的研究，采用“物化预处理—UASB厌氧—活性污泥法”方法，通过实验室小试，取得了各工艺段的设计运行参数。研究发现，在“微电解—Fenton试剂氧化—混凝沉淀”预处理阶段能去除59.1％的COD，可生化性显著提高；在UASB反应器内，当容积负荷为2.86 kgCOD／（m³·d）时，COD去除率可达66.85％；在活性污泥处理段加入特效菌种，容积负荷为3.68 kgCOD／（m³·d）时，COD去除率为91.46％。在此基础上，对该混和废水的处理进行了初步的工程设计。 研究中专门针对含有生物毒性物质硫脲的富马酸废水进行了生物降解动力学分析。在UASB处理中，其反应机理符合有毒物抑制时的Monod方程修正式，其动力学常数K，在1.46～1.70mg／L之间，V_max在0.53～0.54d^-1之间；在活性污泥处理中的生物降解属于一级反应动力学，其反应速率K=0.1666 h^-1。这为富马酸生产废水处理的最优化设计和运行研究提供了参考依据。更多还原

【Abstract】 The treatment process of camphor-containing and fumaric acid-containing wastewater was investigating in this paper . The suitable treatment process of " pre-treated - UASB - activated sludge " was determined by experiments in laboratory . At the pre-treated process of " microelectrolysis - Fenton reagent oxidation-activated sludge ", the removal rate of COD reached 59.1% , and the biodegradability of the wastewater was improved . In the UASB reactor , the removal rate of COD was 66.85% with the VLR of 2.86 kgCOD/(m3d). Then in the activated sludge reactor , with the VLR of 3.68 kgCOD/(m3 d) , that reached 91.46% . At the basis of these results , the treatment project of mixed organic wastewater was elementary designed .Aiming at the fumaric acid-containing wastewater with biology-inhabiting thiourea , the kinetic of biodegradation was analysed . In the UASB reactor , the results of study indicated that the reaction mechanism tallied with the amended Monod equation . The anaerobic kinetic constants of vmax and K for the wastewater treatment were 0.53~0.54 d-1 and 1.46-1.70 mg/L .In the activated sludge reactor, the results showed that the biodegradation in it follows one-order kinetics . Therefore a valuable suggestion for the optimization of design and operation of the wastewater treatment system was put forward .更多还原