【作者】 战立伟；

【导师】 赵大传；

【作者基本信息】 山东大学 ， 环境工程， 2007， 硕士

【摘要】 山东诸城兴贸玉米开发有限公司变性淀粉厂是亚洲最大的玉米深加工企业，目前变性淀粉废水的产生量为70-80m~3／d，此废水COD含量高，可生化性好，但是含盐量高，由于含有较高的盐分(主要是氯化钠)，一直没有找到较好的处理方法，而且随着企业的进一步发展，变性淀粉的废水处理成为一项主要的制约因素。本文在上述实际情况的基础上进行厌氧折流板反应器处理变性淀粉废水的研究，主要内容有：1、通过试验，考察ABR反应器处理实际含盐变性淀粉废水的可行性。2、在ABR的启动过程中，进行普通厌氧活性污泥处理含盐废水的驯化研究。在此试验过程中，监测COD的同时监测pH的变化。3、启动阶段或污泥驯化阶段完成后，监测分析出水VFA，各隔室出水VFA，出水COD、各隔室出水COD、碱度等反映处理效果的参数。观测了ABR反应器内颗粒污泥的形成及污泥床的变化情况。4、找出ABR处理变性淀粉废水的最佳处理工况条件。5、进行ABR反应器处理含盐废水的运行性能研究。6、进行了ABR反应器处理变性淀粉废水的二次启动研究。7、进行了工程模拟设计和经济技术分析，为进一步进行实际工程设计奠定基础。本文的研究结果表明：1、利用普通厌氧活性污泥进行耐盐性的驯化具有可行性。驯化采用逐步提高氯离子梯度或含盐量的方法，设置的氯离子浓度梯度不宜过高，一般为不超过2000mg／L较好，这样不会对厌氧污泥系统造成致命的冲击。氯离子浓度和容积负荷提高梯度越小对系统冲击越小，提高梯度越大对系统冲击也越大，经过驯化这种冲击造成的影响会变小。2、通过驯化可知，普通厌氧活性污泥具有一定的耐盐能力，能够驯化出耐低盐的污泥。在氯离子浓度8500mg／L，含盐量为1.6％，经过驯化，污泥能够正常降解废水中的有机物，系统出水稳定，COD去除率在85％以上。3、建议ABR处理变性淀粉废水的最佳水力停留时间为48h，最佳pH值范围为6.8-7.5，最佳控制温度为34℃，COD去除率可达到85.9％以上。4、ABR系统对一定浓度范围内的氯离子有一定的忍耐性，超出这个范围就比较敏感。氯离子浓度的突然急剧降低比突然急剧增高对污泥微生物的影响更大。系统具有一定的抗瞬时氯离子浓度或盐变化的能力，而且系统抗氯离子浓度或盐突然升高的能力比突然降低的能力要强。5、电解和絮凝两种方法处理变性淀粉废水效果都不是很理想，且从经济上考虑，不是很合适。6、ABR反应器在停止运行半个月后，进行二次启动的时间较短，仅用12天多就完成了启动。更多还原

【Abstract】 The Metamorphic Amylum factory of Shandong Zhucheng xing mao corn developing Ltd.is the biggest one in Asia. At present, the output of Metamorphic Amylum Production Wastewater that has high COD and better biodegradability is 70-80 m~3/d.But this wastewater has high salinity which mostly is sodium chloride. Because that, the Metamorphic Amylum factory did not find a better treatment all along. Along with the development of the corporation,the treatment of the Metamorphic Amylum Production Wastewater become a mostly restricted factor.Based on the fact that is recounted, it is studied in this paper that the Metamorphic Amylum Production Wastewater was treated by anaerobic baffled reactor(ABR), The main ideas includes:1. According to the experiment,the feasibility was discussed that the Metamorphic Amylum Production Wastewater was treated by ABR.2.The COD and pH was detect at the same time in the process, the common activated sludge acclimation that treats salt-containing wastewater is studied in the startup of the ABR.3. After the startup, effluent VFA, effluent VFA of different sector, effluent COD, effluent COD of different sector and alkalinity which reflect effect of treatment are detected. Inspect and analyze some parameters, such as VFA, COD, pH. The form of the granule sludge and changing of the sludge bed are observed.4.The optimal conditions of treating the Metamorphic Amylum Production Wastewater by ABR were found.5.The running performance of treating salt-containing wastewater by ABR were studied.6.The secondary startup of treating the Metamorphic Amylum Production Wastewater by ABR is studied.7.Engineering simulating design and economics technology analysis are studied, which establish a foundation for further practical engineering design.The study results of this paper indicate:1. It is feasible that using the common anaerobic activated sludge that was acclimated treats salt-containing wastewater. In the process of acclimation,the grads of chloride which is inconformity higher is gradually increased. it is better that the grads commonly doesnot preponderate over 2000mg/L, which doesnot come into being the impact of deadliness for anaerobic sludge system. The littler increased grads of chloride concentration and cubage loading,the littler impact for the system. But by the acclimation,the impact becomes littler.2.According to the acclimation, the common anaerobic activated sludge has some tolerance to the salt, and can be acclimated to the salty-tolerance sludge. By acclimation, the chloric ion is 8500mg/L, salt-containing is 1.6%, the anaerobic activated sludge can degrade organic matter in the wastewater,when the COD removal is beyond 85%.3.It is adviced that the optimal terms of treating the Metamorphic Amylum Production Wastewater is: HRT,48h; pH, 6.8-7.5;temperature, 34℃, when the COD removal is 85.9%.4.The ABR system has some endurance to the chloric ion in certain concentration range. Beyond the range, the system is more sensitive. It is worse to sludge microorganism that chloric ion concentration is sudden sharp reduced than it is sudden sharp increased. The system has some endurance to instantaneous changing of chloric ion concentration or salinity, and it has more endurance to sudden increase than sudden reduce for chloric ion concentration.5.It is not a good idea that Metamorphic Amylum Production Wastewater is treated with The electrolysis and the flocculation two methods,and Considered from the economy It is not suitable.6.After stopping running two weeks, ABR just takes 12 days to finish thesecondary startup.更多还原