粉煤灰陶粒填料BAF的挂膜及同步脱氮除磷  

Biofilm Formation and Simultaneous Nitrogen and Phosphorus Removal in BAF with Fly Ash Ceramsite

作　　者：罗隽[1] 谌建宇[1] 庞志华[1] 林方敏[1] 骆其金[1] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655

出　　处：《中国给水排水》2012年第23期25-28,共4页China Water & Wastewater

基　　金：中日国际合作项目(2009DFA91780);中央级公益性科研院所基本科研业务费资助项目(zx_201001_004);环保公益性行业科研专项(201009012);粤港关键领域重点突破项目(2009A030902002)

摘　　要：以自行研制的新型粉煤灰陶粒为填料,研究了曝气生物滤池(BAF)的启动及挂膜过程。以进水流量为80 L/h、进气流量为480 L/h、气水比为6∶1的方式启动反应器,初始进水COD、NH3-N、TP分别为300、20、2.5 mg/L,在25 d后完成BAF的启动及挂膜过程,并实现了同步脱氮除磷。反应器对COD、NH3-N及TP的去除率可分别达到50%、60%及60%左右,且定期反冲洗能保证其同步脱氮除磷效果的持续。挂膜过程主要包括适应、快速增长及稳定等3个阶段。Fly ash ceramsite was used as new filler to research the start-up and biofilm formation of the BAF reactor. The reactor was started up using influent flow rate of 80 L/h, air flow rate of 480 L/h, and air-water ratio of 6 ： 1. The influent concentrations of COD, NH3 - N and TP were 300, 20 and 2.5 mg/L respectively. The start-up and biofilm formation of BAF reactor were achieved after 25 days. Simul- taneous nitrogen and phosphorus removal was realized. The removal rates of COD, NH3 - N and TP were 50%, 60% and 60% respectively. Simultaneous nitrogen and phosphorus removal could be maintained while the BAF reactor was backwashed regularly. The process of biofilm formation includes three steps： adaptation, rapid growth and stability.

关 键 词：粉煤灰陶粒 BAF 启动 挂膜 同步脱氮除磷 

分 类 号：X703[环境科学与工程—环境工程]