水污染控制工程名词解释.doc

水污染控制工程名词解释
of rural drinking water sources, protection of drinking water sources in rural areas by the end of 缺氧）超量吸磷的特性，使好氧（缺氧）段中混合液磷的浓度大量降低，最终通过排放含有大量富磷污泥而达到从污水中除磷的目的。
循环活性污泥工艺（CASS）CASS基本结构是：在序批式活性污泥法（SBR）的基础上，反应池沿池长方向设计为两部分，前部为生物选择区也称预反应区，后部为主反应区，其主反应区后部安装了可升降的自动撇水装置。整个工艺的曝气、沉淀、排水等过程在同一池子内周期循环运行，省去了常规活性污泥法的二沉池和污泥回流系统。
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
MBR膜生物反应器（Membrane Bio-Reactor，MBR）是用超滤膜代替二沉池进行污泥固液分离的污水处理装置，是膜分离技术与活性污泥法的有机结合
污泥龄(sludge age)即生物固体停留时间 (SRT)，是指在污水处理系统（曝气池）中微生物的平均停留时间，也即曝气池内活性污泥平均更新一遍所需的时间。
稳定塘（Stabilization Pond），又名氧化塘（Oxidation Pond）或生物塘，是一种天然的或经一定人工构筑的污水净化系统。
好氧塘（aerobic pond）是一类在有氧状态下净化污水的稳定塘，它完全依靠藻类光合作用和塘表面风力搅动自然复氧供氧。
兼性塘（facultative pond）是指在上层有氧、下层无氧的条件下净化污水的稳定塘，是最常用的塘型。
曝气塘（aerated pond）是指通过人工曝气设备向塘中污水供氧的稳定塘，是人工强化与自然净化相结合的一种形式。
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning si