| ABR反应器处理碱减量印染废水的启动研究 |
| 摘要点击 1940 全文点击 1242 投稿时间：2012-05-16 修订日期：2012-07-29 |
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| 中文关键词 折流板厌氧反应器 碱减量印染废水 厌氧颗粒污泥 脱氢酶活性 辅酶F420 |
| 英文关键词 anaerobic baffled reactor (ABR) alkali-deweighting and dyeing wastewater anaerobic granular sludge dehydrogenase activity coenzyme F420 |
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| 中文摘要 |
| 对折流板厌氧反应器(ABR)处理碱减量印染废水的启动过程进行了实验研究. ABR接种厌氧颗粒污泥,以模拟碱减量印染废水作为启动进水,在温度为32~35℃,进水pH值为7.8~8.3条件下,采用低负荷方式启动ABR. 反应器经过了70 d共6个阶段的连续运行后完成启动,实现了对碱减量印染废水的高效稳定运行. 稳定运行反应器的平均容积负荷(以COD计)达到1.93 kg·(m3·d)-1,出水pH值7.3左右,COD平均去除率为78%以上. 启动后期ABR各隔室功能分区较为明显并且形成了性能良好的厌氧颗粒污泥,相对于启动前期各隔室内颗粒污泥的粒径增大,沉降性能变好,颗粒污泥的f(MLVSS/MLSS)值均达到0.65以上. 启动完成后各隔室内的微生物具有较高活性,ABR中厌氧颗粒污泥的平均DHA浓度(以TF计)和平均辅酶F420浓度分别为88.8 μg·(g·h)-1和 0.18 μmol·g-1. |
| 英文摘要 |
| The start-up of treating alkali-deweighting and dyeing-printing wastewater by anaerobic baffled reactor (ABR) was investigated. Through seeding with the anaerobic granular sludge, the start-up with low organic loading was started by using artificial alkali-deweighing and dyeing wastewater as influent with the condition of temperature 32℃-35℃ and pH 7.8-8.3.After continuously running 70 days, the start-up had been completed to reach the stabilization. The results showed that the pH of effluent kept stable around 7.3 and the average COD removal rate was up to 78% while the average volume loading rate was 1.93 kg·(m3·d)-1. After the start-up, a separating function of each compartment was observed and meanwhile the anaerobic granular sludge with good properties was achieved. Relative to the start, the size of granular sludge particle was increased and the sludge sedimentation performance became better and the value of f (MLVSS/MLSS) was up to 0.65 at the end of the experiment. In addition, high activity of the microorganism was observed that the average value of dehydrogenase activity (DHA) with TF expression and the coenzyme F420 concentration were 88.8 μg·(g·h)-1 and 0.18 μmol·g-1, respectively. |
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