复合式活性污泥-生物膜反应器硝化能力的研究

通过不投加悬浮填料的普通活性污泥法与投加悬浮填料的活性污泥—生物膜法的对比研究发现，普通活性污泥法的硝化能力很低；但向普通活性污泥系统中投加悬浮填料后，填料载体上附着生长的生物膜与悬浮生长的活性污泥共同作用，可强化原有系统的硝化功能，出水NH3—N小于15mg／1。该工艺不需对原有的处理设施作重大改造，非常适合于老污水厂的改造。

Study on Nitrification Capacity by Biofilm-Activated Sludge Process

Comparing activated sludge process with biofilm activated process,we find that the activated sludge process has poor nitrification capacity.But if we put suspended carriers into activated sludge system,the biofilm growing on the carriers and suspended activated sluged can strengthen nitrification capacity together.Thus the effluent ammonium concentrations are less than 15mg/l.The bilofilm activated sludge process,which need not modify the previous facility greatly,is very fit for wastewater treatment plants' modification.