好氧-缺氧高效分离生物流化复合反应器处理生活污水的中试研究

Pilot study on aerobic-anoxic high efficient separation and biological fluidized composite reactor for municipal wastewater treatment

鉴于污水处理中对氮、磷去除率的要求和内循环二相生物流化床反应器存在的不足,开发了一种一体化好氧-缺氧高效分离生物流化复合反应器(HSBCR)。HSBCR好氧循环流化区采用了独特的分格结构,并且在同一个反应器中实现了好氧,缺氧分区运行。HSBCR中试反应器处理生活污水的结果表明,随着好氧区水力停留时间从10 h延长到25 h,反应器对NH3-N的去除效果上升,对总氮的去除效果表明该反应器具有较好的反硝化效果。

To meat the requirements of phosphorous removal and denitrification in municipal wastewater treatment, and in view of the shortcomings in inner circulated three-phase biological fluidized bed, a kind of aerobic-anoxic integrated high efficient separation and biological fluidized composite reactor (HSBCR) was developed. A unique cellular structure was applied in the aerobic fluidized zone of HSBCR, in which there are an aerobic zone and an anoxic zone to operate synchronously. Results of HSBCR pilot reactor used to treat municipal wastewater showed that when the hydraulic remaining time in the aerobic zone was increased from 1.0 to 2.5 h, NH3-N removal ratio was increased. The results of the total nitrogen removal indicated that HSBCR has good denitrifying performance.