| 部分亚硝化-厌氧氨氧化协同反硝化处理生活污水脱氮除碳 |
| 摘要点击 2211 全文点击 727 投稿时间：2021-01-25 修订日期：2021-03-28 |
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| 中文关键词 间歇曝气 温度 部分亚硝化 厌氧氨氧化(ANAMMOX) 反硝化 C/N |
| 英文关键词 intermittent aeration temperature partial nitritation anaerobic ammonium oxidation(ANAMMOX) denitrification C/N |
| 作者 | 单位 | E-mail | | 秦彦荣 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | 1249354392@qq.com | | 袁忠玲 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 张明 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 张民安 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 刘安迪 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 付雪 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 马娟 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | | | 陈永志 | 兰州交通大学环境与市政工程学院, 兰州 730070
甘肃省黄河水环境重点实验室, 兰州 730070
甘肃省污水处理行业技术中心, 兰州 730070 | 476411589@qq.com |
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| 中文摘要 |
| 采用SBR-ASBR组合工艺处理实际生活污水，SBR中考察缺氧/好氧时间比及温度对部分亚硝化（partial nitritation，PN）的作用，ASBR中研究COD/NO2--N（C/N）对厌氧氨氧化（anaerobic ammonium oxidation，ANAMMOX）协同反硝化脱氮除碳的影响.①控制温度为25℃，在缺氧/好氧时间比为30 min：30 min，单周期交替3次时，NO2--N积累率（NiAR）于第22 d为98.06%，比亚硝态氮产生速率（SNiPR，以N/VSS计）为0.28g·（g·d）-1，同步硝化反硝化去除的TN和COD分别为12.29 mg·L-1和110.36mg·L-1.②在缺氧/好氧时间比为30 min：30 min下，温度为15℃时，丝状菌大量繁殖，污泥活性和沉降性变差；温度为30℃时，NH4+-N转化为NO2--N比例为86.83%，造成出水NH4+-N浓度过低，不能为厌氧氨氧化提供合适基质浓度；温度为25℃时，出水NH4+-N和NO2--N浓度分别为31.58 mg·L-1和35.04mg·L-1，匹配厌氧氨氧化基质比.③组合工艺脱氮性能良好，出水TN、NH4+-N和COD浓度分别稳定在13.13、4.83和69.96mg·L-1，去除率分别为83.10%、93.64%和75.11%.调节ASBR进水C/N为2.5、2.0和1.5时，C/N为2.0时厌氧氨氧化协同反硝化脱氮除碳性能最佳，出水NH4+-N、NO2--N、NO3--N和COD分别为0.09、0.25、1.04和32.73mg·L-1. |
| 英文摘要 |
| A sequencing batch reactor-anaerobic sequencing batch reactor(SBR-ASBR) process was used to treat domestic sewage. In the SBR, the effects of the anoxic/aerobic time ratio and temperature on the realization of partial nitritation(PN) were investigated. In the ASBR, the effects of different COD/NO2--N(C/N) ratios on the removal of nitrogen and carbon using anaerobic ammonia oxidation(ANAMMOX) and denitrification were studied. The results illustrated that:① After three single cycles and on the 22nd day, the NO2--N accumulation rate(NiAR) was 98.06%, and the nitrate nitrogen generation rate(SNiPR, calculated as N/VSS) was 0.28g·(g·d)-1, and simultaneous nitrification and denitrification removal the TN and COD were 12.29 and 110.36mg·L-1, respectively(temperature=25℃, anoxic/aerobic time ratio=30 min:30 min). ② At an anoxic/aerobic time ratio of 30 min:30 min, the filamentous sludge bulked, the sludge activity decreased, and sludge settleability was poor at 15℃. Furthermore, the conversion rate of NH4+-N to NO2--N was 86.83%, indicating that the effluent NH4+-N concentration was too low to provide suitable matrix concentrations for ANAMMOX at 30℃. The effluent concentrations of NH4+-N and NO2--N were 31.58 mg·L-1 and 35.04mg·L-1, respectively, matching the ratio of the ANAMMOX substrate at 25℃. ③ The SBR-ASBR combined process showed good denitrification performance; the effluent TN, NH4+-N, and COD concentrations were stable at 13.13, 4.83, and 69.96mg·L-1, respectively, and the removal rates were 83.10%, 93.64%, and 75.11%, respectively. When the influent C/N of the ASBR was 2.5, 2.0, and 1.5, respectively, anaerobic ammonia oxidation and denitrification showed the best performance with respect to nitrogen and carbon removal with a C/N of 2.0. The effluent NH4+-N, NO2--N, NO3--N, and COD were 0.09, 0.25, 1.04, and 32.73 mg·L-1, respectively. |
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