Coupling of sequencing batch reactor and mesh filtration: operational parameters and wastewater treatment performance.
Coupling of sequencing batch reactor and mesh filtration: operational parameters and wastewater treatment performance.
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DOI：
10.1016/j.watres.2005.05.025
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发表时间：
2005-12
期刊：
影响因子：
12.8
通讯作者：
Y. Kiso;Yong-Jun Jung;Min S. Park;Wenhui Wang;Masahiro Shimase;Toshiro Yamada;K. Min
中科院分区：
文献类型：
--
作者：
Y. Kiso;Yong-Jun Jung;Min S. Park;Wenhui Wang;Masahiro Shimase;Toshiro Yamada;K. Min
以模拟废水为研究对象，考察了序批式活性污泥法（SBR）与网式生物反应器组合工艺的处理性能。在该系统中，过滤仅通过反应器和流出端口之间的水位差进行，并借助于积聚在筛网过滤器上的污泥层。将一半体积的混合液过滤约10分钟。在0. 5 ~ 2. 0 m-H2O范围内，过滤时间不受初始压力的影响。在连续曝气和间歇曝气条件下，由于筛网过滤器能有效地截留反应器中的生物质，出水SS <1 mg/L，BOD <10 mg/L。在间歇曝气条件下，通过调节曝气时间，氮的去除效果也较好。研究结果表明，筛网过滤可以有效地与SBR反应器相结合，改善SBR反应器的性能。此外，它被证明，如过滤时间和固体分离的网孔过滤的性能受到活性污泥的胞外聚合物中的糖含量的显着影响。
Wastewater treatment performance of the combined process of sequencing batch reactor (SBR) and mesh filtration bio-reactor was investigated with a synthetic wastewater. In this system, the filtration was performed only by the water level difference between the reactor and the effluent port, with the help of a sludge layer which accumulated on the mesh filter. A half volume of the mixed liquor was filtrated for ca. 1h, and the filtration time was not affected by the initial pressure within the range of 0.5–2.0m-H2O. Since the mesh filter could effectively reject the biomasses in the reactor, the effluents contained SS of less than 1mg/L and BOD of less than 10mg/L under continuous or intermittent aeration conditions. Nitrogen was also removed effectively with the adjustment of aeration time under the intermittent aeration conditions. The results obtained in this work indicate that mesh filtration could be effectively combined with SBR and improve the performance of SBR. In addition, it was shown that the performance of the mesh filtration such as filtration time and solids separation was influenced significantly by the saccharide content in the exocellular polymer of the activated sludge.