| 低C/N高氨氮消化污泥脱水液部分亚硝化研究 |
| 摘要点击 1685 全文点击 2149 投稿时间：2008-07-21 修订日期：2008-09-27 |
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| 中文关键词 污泥脱水液 部分亚硝化 悬浮填料 厌氧氨氧化 FA |
| 英文关键词 sludge liquor partial nitrification suspended carrier ANAMMOX FA |
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| 中文摘要 |
| 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.试验结果表明: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比率.当进水氨氮平均为315.80mg/L、平均进水ALR 为0.43kg/(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1.0～10.3mg/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。
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| 英文摘要 |
| 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%-08% nitrite accumulation efficiency was obtained when FA concentration was in the range of 1.0-10.3mg/L by controlling
influent ammonia loading rate (ALR),ratio of alkalinity and ammonia and HRT in the aerobic reactor .The effluent/ammonia ratio was adout 1.25 when the average influent ammonia, influent ALR and influent ratio of alkalinity and ammonia were 315.80mg/L,0.43kg/(m3·d) and 5.25,respectively.So the effluent of partial nitrification process provided the influent subtrate demand for the following ANAMMOX process. The integrative analyisis indicated that the proper FA
concentration was the main factor achieving the partial nitnification .the study developed a nove partial nitnification technology adapt to water characteristics of digested sludge liquor.
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