SMBBR在生活和制药污废水处理工艺中的应用研究
发布时间：2018-11-24 17:20
【摘要】：近年来，随着经济发展方式的转变和生态文明建设的推进，我国已经对环境污染宣战，工业水处理行业也正在向节能、高效、经济的方向发展。SMBBR（特异性移动床生物膜反应器）是在MBBR的基础上而研发出的一项新型生物处理技术。本课题利用微生物吸收降解污染物的生理特性，以新型SDC填料为载体，研究了SMBBR在生活污水和制药废水处理工艺中的应用，为该技术用于污水处理工艺改造提供数据参考。 通过改变填料类型和体积投加比对该技术处理生活污水进行研究，结果表明：最优性能填料为SDC-J，填料最佳投加比为30%。当SDC—X和SDC—J填料的体积投加比为2:1时，两种填料的挂膜速率和处理性能基本相同。SMBBR对于处理北方低温生活污水具有良好的性能，出水CODcr、NH3-N、TN明显低于城镇污水处理厂污染物排放标准（GB18918-2002）一级A的标准。 通过改变运行方式，对SMBBR及其优化技术处理制药废水的性能进行研究，，得到微-好氧SMBBR串联工艺时性能较佳。该串联工艺能够对难降解污染物进行水解酸化-好氧分解处理，提高SMBBR工艺的容积负荷，为制药废水处理工艺的升级改造提供参考。由于微氧曝气的曝气量较难控制，因此，该系统在运行过程中存在操作不方便，易出现故障等问题。在工程实践中建议使用搅拌器保证微氧系统填料的流化性。 通过对生活污水和制药废水的实验研究，得到在挂膜期投加硅酸钙有助于缩短挂膜期1-2天。挂膜阶段，过高的污泥浓度会抑制生物膜上的微生物的生长。在工程实践中，挂膜方式随水质条件的变化而定。生物挂膜成熟后，对水质环境的突变具有较强的抗冲击能力。
[Abstract]:In recent years, with the transformation of economic development mode and the promotion of ecological civilization construction, China has declared war on environmental pollution, and the industrial water treatment industry is also becoming energy saving and efficient. . SMBBR (specific moving bed biofilm reactor is a new biological treatment technology developed on the basis of MBBR. Based on the physiological characteristics of microbial absorption and degradation of pollutants, the application of SMBBR in the treatment of domestic sewage and pharmaceutical wastewater was studied with a new type of SDC filler as the carrier. The data reference was provided for the application of the technology in the modification of wastewater treatment process. The treatment of domestic sewage was studied by changing the packing type and volume addition ratio. The results showed that the optimal performance of the filler was that the SDC-J, filler had the best addition ratio of 30%. When the volume ratio of SDC-X and SDC-J fillers is 2:1, the membrane suspension rate and treatment performance of the two fillers are basically the same. SMBBR has a good performance in treating northern low-temperature domestic sewage, and the effluent CODcr,NH3-N, is good. TN is significantly lower than the first class A standard of pollutant discharge standard (GB18918-2002) for municipal wastewater treatment plants. By changing the operation mode, the performance of SMBBR and its optimized technology in the treatment of pharmaceutical wastewater was studied. The results showed that the performance of microaerobic SMBBR in series process was better. The series process can hydrolyze acidification-aerobic decomposition of refractory pollutants, increase the volume load of SMBBR process, and provide a reference for the upgrading of pharmaceutical wastewater treatment process. Because the aeration rate of micro-oxygen aeration is difficult to control, the system has some problems such as inconvenient operation and fault. In engineering practice, it is suggested that agitator should be used to ensure fluidization of fillers in micro oxygen system. Through the experimental study on domestic sewage and pharmaceutical wastewater, it is concluded that adding calcium silicate in the film forming period can shorten the film forming period for 1-2 days. High sludge concentration can inhibit the growth of microorganisms in biofilm. In engineering practice, the method of hanging membrane depends on the change of water quality. When the biofilm matures, it has strong impact resistance to the mutation of water quality environment.
【学位授予单位】：内蒙古科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X787;X799.3
本文编号：2354458
[Abstract]:In recent years, with the transformation of economic development mode and the promotion of ecological civilization construction, China has declared war on environmental pollution, and the industrial water treatment industry is also becoming energy saving and efficient. . SMBBR (specific moving bed biofilm reactor is a new biological treatment technology developed on the basis of MBBR. Based on the physiological characteristics of microbial absorption and degradation of pollutants, the application of SMBBR in the treatment of domestic sewage and pharmaceutical wastewater was studied with a new type of SDC filler as the carrier. The data reference was provided for the application of the technology in the modification of wastewater treatment process. The treatment of domestic sewage was studied by changing the packing type and volume addition ratio. The results showed that the optimal performance of the filler was that the SDC-J, filler had the best addition ratio of 30%. When the volume ratio of SDC-X and SDC-J fillers is 2:1, the membrane suspension rate and treatment performance of the two fillers are basically the same. SMBBR has a good performance in treating northern low-temperature domestic sewage, and the effluent CODcr,NH3-N, is good. TN is significantly lower than the first class A standard of pollutant discharge standard (GB18918-2002) for municipal wastewater treatment plants. By changing the operation mode, the performance of SMBBR and its optimized technology in the treatment of pharmaceutical wastewater was studied. The results showed that the performance of microaerobic SMBBR in series process was better. The series process can hydrolyze acidification-aerobic decomposition of refractory pollutants, increase the volume load of SMBBR process, and provide a reference for the upgrading of pharmaceutical wastewater treatment process. Because the aeration rate of micro-oxygen aeration is difficult to control, the system has some problems such as inconvenient operation and fault. In engineering practice, it is suggested that agitator should be used to ensure fluidization of fillers in micro oxygen system. Through the experimental study on domestic sewage and pharmaceutical wastewater, it is concluded that adding calcium silicate in the film forming period can shorten the film forming period for 1-2 days. High sludge concentration can inhibit the growth of microorganisms in biofilm. In engineering practice, the method of hanging membrane depends on the change of water quality. When the biofilm matures, it has strong impact resistance to the mutation of water quality environment.
【学位授予单位】：内蒙古科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X787;X799.3
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本文编号：2354458
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