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1.绪言对深度污水处理也应该参照总排污量的规定。另外,从节省资源角度来看,污水的再利用作为杂用水道已逐步成为现实。这样,在污水处理中也就需要加强水质管理,因此,一般认为大多数污水处理厂,都设置快速过滤装置来作为处理的最后阶段的日子已为时不远。以往的快速过滤装置,由于其构造本身是一种过滤与冲洗交互进行的统一系统。同时,一般是以恒速过滤为基础的定负荷运转。为此,对于进水负荷量不断变化的污水,为适应其变化,必须设有大的蓄水池,或者是频繁的池数控制,还必须进行麻烦的流量调节。由于这样,对于不需控制,适应进水量任意变化,可以连续过滤的这个因素,具有很好的平衡作用。
1. INTRODUCTION The depth of sewage treatment should also refer to the total discharge amount. In addition, from the perspective of saving resources, the reuse of sewage as a miscellaneous waterway has gradually become a reality. In this way, it is necessary to strengthen water quality management in the sewage treatment. Therefore, it is generally believed that most of the sewage treatment plants have set up rapid filtration devices as the final stage of treatment. The conventional rapid filtration device, because of its structure itself, is a unified system in which filtration and flushing are performed interactively. At the same time, constant-speed operation based on constant-speed filtration is generally used. For this reason, in order to adapt to changes in the effluent with constantly changing influent loading, it is necessary to have large reservoirs, or frequent tank number control, and troublesome flow adjustments must also be made. Because of this, for factors that do not need to be controlled and adapt to changes in the influent water quantity, continuous filtering can have a good balance.