新型悬浮载体生物接触氧化法去除微污染水中氨氮  

Application of Overlap-blade Suspended Biological Carrier to Biological Contact Oxidation Pretreatment of Ammonia Nitrogen in Micro-polluted Source Water

作　　者：赵杨 刘远 贾志宇 魏宏斌[3] 

机构地区：[1]上海达望元水务工程设计有限公司,上海201315 [2]上海中耀环保实业有限公司,上海200092 [3]同济大学城市污染控制国家工程研究中心,上海200092

出　　处：《中国给水排水》2008年第19期91-94,共4页China Water & Wastewater

摘　　要：将实用新型专利产品——叠片展开式悬浮生物载体应用于生物接触氧化工艺，考察了对微污染源水中氨氮的去除效果及其主要影响因素、载体的挂膜情况和生物膜特性。结果表明，该工艺对微污染源水中的氨氮有较好的去除效果。当水温〉14．5℃、进水氨氮〈4mg／L时，对氨氮的去除率基本稳定在70％～85％之间。考虑工程投资因素，推荐在实际生产中选用气水比为（1～1．3）：1，HRT为1．0—1．5h。该新型填料采用自然挂膜方式约17d即可成功挂膜，且生物相丰富。A patented technology, the overlap-blade suspended biological carrier, was applied to biological contact oxidation pretreatment of micro-polluted source water. The removal efficiency of ammonia nitrogen, main influencing factors, biofilm formation and growth characteristics were investigated. The results show that good NH4^＋- N removal effect is achieved. When water temperature is over 14.5℃ -and initial NH4^＋ - N concentration is less than 4 mg/L, the NH4^＋ - N removal rate is between 70% and 85%. Considering project cost, the proposed air-to-water ratio and HRT are （ 1 - 1.3 ） ： 1 and 1.0 to 1.5 h respectively. The new carrier only takes about 17 days to achieve rich biofilm by natural microorganism growth.

关 键 词：微污染源水 预处理 生物接触氧化 叠片展开式悬浮生物载体 氨氮 

分 类 号：X703[环境科学与工程—环境工程]