一体式生物净化-沉淀池对微污染水体污染物的强化去除性能
发布时间：2018-10-30 11:49
【摘要】：本文针对现有饮用水净化工艺对溶解性组分的去除能力有限,以及沉淀单元占地面积大,功能单一的问题,将生物转盘与平流沉淀池设计理念相结合,开发出一种生物净化-沉淀工艺,以提升系统对原水中浊度、有机物和氮磷的同步去除性能.结果表明,生物转盘的设置并未干扰沉淀池原有的浊度去除功能.当进水有机负荷为0.46 g·(m2·d)-1时,生物沉淀池对有机组分、氨氮、总氮和总磷的去除率分别为81.4%、95.0%、21.1%和86.0%.进一步研究发现,反硝化和除磷过程对水相中的有限碳源存在竞争关系.进水有机负荷的上升,有助于除磷过程的进行,同时沉淀出水中残留的有机组分和氨氮含量几乎不受影响,表明工艺具有一定抗冲击负荷能力,在微污染水体的强化净化处理中具有一定的应用前景.
[Abstract]:In this paper, aiming at the limited removal capacity of dissolved components in the existing drinking water purification process, and the problems of large area and single function of sedimentation unit, the design idea of biological turntable and advection sedimentation tank is combined. A biological purification and precipitation process was developed to enhance the simultaneous removal of turbidity, organic matter and nitrogen and phosphorus in raw water. The results showed that the setting of biological turntable did not interfere with the original turbidity removal function of sedimentation tank. When the influent organic load was 0.46 g (m ~ 2 ~ 2 d) -1, the removal rates of organic components, ammonia nitrogen, total nitrogen and total phosphorus were 81.4%, 95.0% and 86.0%, respectively. It is further found that denitrification and phosphorus removal processes have a competitive relationship with the limited carbon sources in water phase. The increase of influent organic load is beneficial to the process of phosphorus removal, while the residual organic components and ammonia nitrogen content in the precipitated water are almost unaffected, which indicates that the process has the ability to resist shock loading. It has a certain application prospect in the treatment of micro-polluted water.
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本文编号：2299923
[Abstract]:In this paper, aiming at the limited removal capacity of dissolved components in the existing drinking water purification process, and the problems of large area and single function of sedimentation unit, the design idea of biological turntable and advection sedimentation tank is combined. A biological purification and precipitation process was developed to enhance the simultaneous removal of turbidity, organic matter and nitrogen and phosphorus in raw water. The results showed that the setting of biological turntable did not interfere with the original turbidity removal function of sedimentation tank. When the influent organic load was 0.46 g (m ~ 2 ~ 2 d) -1, the removal rates of organic components, ammonia nitrogen, total nitrogen and total phosphorus were 81.4%, 95.0% and 86.0%, respectively. It is further found that denitrification and phosphorus removal processes have a competitive relationship with the limited carbon sources in water phase. The increase of influent organic load is beneficial to the process of phosphorus removal, while the residual organic components and ammonia nitrogen content in the precipitated water are almost unaffected, which indicates that the process has the ability to resist shock loading. It has a certain application prospect in the treatment of micro-polluted water.
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本文编号：2299923
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