低C/N高氨氮消化污泥脱水液部分亚硝化研究  

Partial Nitrification of Digested Sludge Liquor with Low C/N and High-concentration Ammonia

作　　者：张树军[1,2] 马富国[2] 曹相生[2] 甘一萍[1] 孟雪征[2] 周军[1] 王洪臣[1] 彭永臻[2] 

机构地区：[1]北京城市排水集团有限责任公司,北京100038 [2]北京工业大学北京市水质科学与水环境恢复工程重点实验室,北京100124

出　　处：《环境科学》2009年第6期1695-1700,共6页Environmental Science

基　　金：“十一五”国家科技支撑计划重点项目(2006BAC19B01);北京市科技计划项目

摘　　要：采用缺氧滤床＋好氧悬浮填料生物膜工艺,在常温（15-29℃）、高溶解氧（6-9 mg/L）条件下,于好氧反应器中实现和维持了脱水液部分亚硝化.结果表明,通过综合调控进水氨氮负荷（ALR）、进水碱度/氨氮、水力停留时间,可以调节出水NO2--N/NH4＋-N.当进水氨氮平均为315.80 mg/L、平均进水ALR为0.43 kg/（m3.d）、进水碱度/氨氮为5.25时,出水NO2--N/NH4＋-N为1.25左右,为后续ANAMMOX工艺创造了进水基质条件.同时将好氧区游离氨（FA）控制在1.0-10.3 mg/L,实现了亚硝酸盐氮累积率70%-80%的部分亚硝化.综合分析表明,通过动态调控维持反应器内适宜的FA浓度是实现部分亚硝化的主要影响因素.本研究开发了一种适合消化污泥脱水液水质特点的新型部分亚硝化技术.The experimental system consisted of anoxic filter and aerobic suspended carrier biofilm reactor. The partial nitrification was achieved and maintained stably in the aerobic reactor under normal temperature （15-29 ℃ ） and high DO （6-9 mg/L）. The nitritation with 70%-80% nitrite accumulation efficiency was obtained when FA concentration was in the range of 1.0-10.3 mg/L by controlling influent ammonia loading rate（ALR）, ratio of alkalinity and ammonia and HRT in the aerobic reactor. The effluent nitrite/ammonia ratio was about 1.25 when the average influent ammonia, influent ALR and influent ratio of alkalinity and ammonia were 315.80 mg/L, 0.43 kg/（m3·d） and 5.25, respectively. So the effluent of partial nitrification process provided the influent substrate demand for the following ANAMMOX process. The integrative analysis indicated that the proper FA concentration was the main factor achieving the partial nitrification. The study developed a novel partial nitrification technology adapt to water characteristics of digested sludge liquor.

关 键 词：污泥脱水液 部分亚硝化 悬浮填料 厌氧氨氧化 FA 

分 类 号：X703.1[环境科学与工程—环境工程]