| PN-ANAMMOX一体化反应器处理电子行业PCB废水 |
| 摘要点击 2174 全文点击 1196 投稿时间：2014-11-14 修订日期：2015-01-30 |
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| 中文关键词 亚硝化 厌氧氨氧化 一体化反应器 PCB废水 脱氮效能 |
| 英文关键词 partial nitrification ANAMMOX integrative reactor PCB wastewater nitrogen removal rate |
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| 中文摘要 |
| 利用已经启动成功并达到稳定脱氮效能的部分亚硝化-厌氧氨氧化一体化反应器,研究碱性印制电路板(PCB)废水自养生物脱氮的可行性及运行特性. 结果表明,将进水NH4+-N浓度维持在220 mg ·L-1时,经过80 d的运行,一体化反应器出水NH4+-N、NO2--N浓度降低并稳定在4.0 mg ·L-1和9.8 mg ·L-1左右,脱氮效能最高达到1.29 kg ·(m3 ·d)-1. 同时出水总氮小于50 mg ·L-1,满足接管排放标准. 一体化反应器内好氧区NO-2-N产生速率最高为2.05 kg ·(m3 ·d)-1,厌氧区的厌氧氨氧化菌最高脱氮效能为2.91 kg ·(m3 ·d)-1,说明各功能菌在相应区域得到稳定地增长. 一体化反应器适用于无机含氨的碱性PCB废液自养生物脱氮处理. |
| 英文摘要 |
| The feasibility and operating characteristics of treatment of printed circuit board (PCB) wastewater by using autotrophic nitrogen removal process in partial nitrification and ANAMMOX integrative reactor were investigated. The reactor had startup successfully and achieved the stable nitrogen removal efficiency. The results showed that, after 80d operation, the nitrogen removal rate increased and was up to 1.29 kg ·(m3 ·d)-1, the effluent NH4+-N and NO-2-N were decreased and stabilized at 4.0 mg ·L-1, 9.8 mg ·L-1 respectively, when the influent concentration of NH4+-N maintained at 220 mg ·L-1. At the same time, the concentration of total nitrogen was less than 50 mg ·L-1 in effluent, which meet the quality emissions requirements. The NO-2-N production rate was up to 2.05 kg ·(m3 ·d)-1 by nitrite bacteria in aerobic zone, and the highest nitrogen removal rate was 2.91 kg ·(m3 ·d)-1 by ANAMMOX bacteria in anaerobic zone, which illuminated functional bacteria were steadily grown in the corresponding region. The inorganic ammonia in PCB wastewater could be removed by autotrophic nitrogen removal process in nitrification and ANAMMOX integrative reactor. |
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