MBBR在国内的工程应用与发展前景  

Application and Development Prospect of MBBR in China

作　　者：吴迪 WU Di(Qingdao SPRING Water Treatment Co.Ltd.,Qingdao 266500,China)

机构地区：[1]青岛思普润水处理股份有限公司,山东青岛266500

出　　处：《中国给水排水》2018年第16期22-31,共10页China Water & Wastewater

摘　　要：典型的MBBR工艺系统包括悬浮载体、拦截筛网、流化系统(曝气、搅拌推流等),整个系统通过优化设计,实现填料的流化与拦截。国内MBBR典型工程应用具有强化脱氮除磷、负荷高、占地省、抗冲击负荷能力强、耐受低温等极端水质、可持续升级、投资省、运行费用低等特点。MBBR采用镶嵌式改造,曝气方式灵活,项目实施周期短,运行管理方便,广泛应用于市政和工业废水处理,应用时不受规模限制。悬浮载体生物膜具有生物选择功能,水力剪切、DO与微生物量及菌落变化密切相关;泥膜复合MBBR工艺,一定程度上克服了传统活性污泥法中脱氮除磷泥龄的矛盾,突破了传统活性污泥法中好氧、非好氧池容比例限制。MBBR改造形成了多条技术路线,根据具体情况选择最合理方式,强化生物脱氮除磷。MBBR的多种池型,包括循环流动池型、微动力混合池型、完全混合池型等,满足绝大多数项目改造需求。MBBR微生物选择性以及工艺镶嵌的特点,让MBBR可作为新技术的载体和工程化平台,具有广阔的应用前景。A typical MBBR process includes suspension carriers, interception screen, fluidization system （aeration, agitation, etc. ）. The entire system is optimally designed to achieve fluidization and interception of the filler. Typical applications of domestic MBBR projects have the characteristics of enhanced nitrogen and phosphorus removal, high load and low occupying, strong impact resistance capacity, tolerance to extreme temperatures such as low temperatures, sustainable upgrading, investment savings, and low operating costs. MBBR adopts inlaid retrofitting, flexible aeration, short project implementation cycle, convenient operation and management, and is widely used in municipal and industrial wastewater treatment without restriction on treatment capacity. Suspension carrier biofilm has advantages such as biological selection function, hydraulic shear, close relation of DO to microbial biomass and colony changes. Sludge-membrane composite MBBR overcomes the conflict existed in sludge age difference between nitrogen removal and phosphorus removal in traditional activated sludge process to a certain ex- tent. The limitation of ratio between aerobic and non-aerobic tank volume in the conventional activated sludge process does not exist in sludge-membrane composite MBBR. Through MBBR style retrofitting, many technical routes were formed. In order to strengthen biological nitrogen and phosphorus removal, the most reasonable way should be chosen according to the specific situation. MBBR＇ s various tank types, including the circulating flow tank type, micro-power mixing tank type, and fully-mixed tank type, could satisfy most project transformation needs. MBBR＇ s microbiological selectivity and process inlaid features make it be a new technology carrier and engineering platform with broad application pros- pects.

关 键 词：移动床生物膜反应器 泥膜复合工艺 硝化螺旋菌 脱氮除磷 同步硝化反硝化 反硝化除磷菌 厌氧氨氧化 

分 类 号：TU992.3[建筑科学—市政工程]