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首页> 外文期刊>Separation and Purification Technology >The performance of SBR, SCR, and MSCR for simultaneous biodegradation of high concentrations of formaldehyde and ammonia
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The performance of SBR, SCR, and MSCR for simultaneous biodegradation of high concentrations of formaldehyde and ammonia

机译：SBR，SCR和MSCR对高浓度甲醛和氨气同时生物降解的性能

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This paper presents experimental results for the simultaneous removal of formaldehyde (CH2O) and ammonia nitrogen using three bioreactors: a sequencing batch reactor (SBR), a sequencing continuous-inflow reactor (SCR), and a novel modified moving-bed SCR (MSCR). The performance of these bioreactors was first investigated in terms of removal of CH2O and COD. The MSCR achieved the highest removal capacity: 100% of the CH2O and 97% of the COD at an inlet loading rate of 1.25 kg CH2O/m~3 d (1.8 kg COD/m~3 d) over a 24-h cycle time. The SCR was the next most efficient bioreactor. The nitrogen removal performance of the SCR and the MSCR was also studied. Results indicated that the MSCR removed approximately 99.9% of the nitrogen at a loading rate of 1.25 kg N/m3 d in the presence of 1.25 kg CH2O/m~3 d. This work showed the MSCR to be an efficient modification of the activated sludge process for concurrently obtaining CH2O and nitrogen removal.
机译：本文介绍了使用三种生物反应器同时去除甲醛（CH2O）和氨氮的实验结果：顺序分批反应器（SBR），顺序连续流入反应器（SCR）和新型改良的移动床SCR（MSCR） 。这些生物反应器的性能首先从去除CH2O和COD方面进行了研究。 MSCR达到了最高的去除能力：在24小时的循环时间内，以1.25 kg CH2O / m〜3 d（1.8 kg COD / m〜3 d）的入口负载率，CH2O的100％和COD的97％ 。 SCR是第二高效率的生物反应器。还研究了SCR和MSCR的脱氮性能。结果表明，在存在1.25 kg CH2O / m〜3 d的条件下，MSCR在1.25 kg N / m3 d的加载速率下去除了大约99.9％的氮。这项工作表明，MSCR是对活性污泥工艺的有效改进，可以同时获得CH2O和氮的去除。

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