滤速对包埋菌处理微污染水中氨氮的影响  

THE INFLUENCE OF THE FILTRATION RATE TO THE AMMONIA NITROGEN IN THE TREATMENT OF MICRO-POLLUTED RAW WATER BY USING IMMOBILIZED NITROBACTERIA

作　　者：侯帅华[1] 贾宝秋[1] 吴银娜[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《水处理技术》2009年第3期77-78,82,共3页Technology of Water Treatment

摘　　要：采用包埋固定化微生物好氧流化床在不同滤速条件下处理广州某河水,颗粒的装填体积为流化床有效容积的10%,流化床采用气升管曝气的内循环方式设计。试验表明,在水温为20℃左右,DO≥4mg·L-1的条件下,当滤速为11～12m·h-(1HRT为35～38min)时,氨氮的去除率可以保持在40%以上,在冲击负荷≥1.0mg·L-1时再略降低滤速,并在负荷消失后回调滤速,可始终保证出水水质,取得良好的处理效果和经济效益。The treatment of ammonia nitrogen in micro-polluted raw water in different filtration rate by immobilized nitrobacteria pellets （10% pellets stuffing ratio in volume） in airlift loop reactor was investigated with the system operating continuously under the condition of temperature about 20℃, DO≥4 mg· L^-1. The result showed that when the filtration rate is 11 - 12 m· h^-1 （HRT=35 -38 min）, the average removal rate of ammonia nitrogen is above 40%. If the filtration rate can be turned down when the impact load ≥1.0 mg·L^-1 then recovered, it can gain favorable effect and economic benefits.

关 键 词：包埋菌 氨氮 滤速 

分 类 号：X522[环境科学与工程—环境工程]