Performance of Membrane Bio-Reactor Equipped with Air-Sparged Side-Stream Tubular Membrane: Treatment Efficiency and Membrane Fouling
Performance of Membrane Bio-Reactor Equipped with Air-Sparged Side-Stream Tubular Membrane: Treatment Efficiency and Membrane Fouling
复制标题
配备空气喷射侧流管式膜的膜生物反应器的性能：处理效率和膜污染
DOI：
10.1080/01496395.2011.648784
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发表时间：
2012
影响因子：
2.8
通讯作者：
Y. Watanabe
中科院分区：
文献类型：
--
作者：
A. Hoque;T. Miyoshi;K. Kimura;Y. Watanabe
我们进行了一个高负荷运行的折流板生物反应器配备了空气鼓泡侧流管式膜组件处理实际城市污水在两个不同时期（高温和低温）。在低温阶段，虽然脱氮效率略有下降，但折流板反应器仍表现出良好的脱氮除磷效果。我们还研究了在不同气速下两相流（混合液和气体）运行期间物理可逆和不可逆污垢的发展，混合液流速固定为0.50 m/s。在整个实验中，膜通量固定在80 L/m2/小时。无论温度的差异，这两种类型的膜污染的发展趋势所造成的气体流速的差异是相似的。对于物理可逆的结垢，发现最佳气体速度为约0.42 m/s（相应的空隙率为0.45），在该最佳气体速度下，这种类型的结垢的发展最小化。气体速度的进一步增加导致更可逆的结垢。另一方面，随着气速的增加，物理不可逆结垢的程度降低。研究结果表明，气速对膜污染控制的影响因膜污染的类型而异。
We conducted a high-load operation of a baffled bio-reactor equipped with air-sparged side-stream tubular membrane modules for treating actual municipal wastewater at two different periods (high- and low-temperature). Although nitrogen removal efficiency slightly decreased at the low-temperature period, this baffled bio-reactor showed excellent nitrogen and phosphorus removal efficiencies. We also investigated the developments of both physically reversible and irreversible fouling during operation with two-phase flow (mixed-liquor and gas) at various gas velocities and the mixed-liquor velocity was fixed at 0.50 m/s. The membrane flux was fixed at 80 L/m2/hour throughout the experiments. Regardless of the difference in temperature, the trends in the development of these two types of membrane fouling caused by the difference in gas velocity were similar. For physically reversible fouling, an optimum gas velocity, in which the development of this type of fouling was minimized, was found to be around 0.42 m/s (corresponding void fraction was 0.45). A further increase in gas velocity resulted in more reversible fouling. On the other hand, the degree of physically irreversible fouling decreased as gas velocity increased. The results obtained in this study indicated the effect of gas velocity on fouling control differs depending on the type of membrane fouling.
影响因子：
12.8
作者：
Kimura, K;Hane, Y;Ohkuma, N
通讯作者：
Ohkuma, N
影响因子：
9.9
作者：
K. Kimura;T. Miyoshi;T. Naruse;N. Yamato;R. Ogyu;Y. Watanabe
通讯作者：
K. Kimura;T. Miyoshi;T. Naruse;N. Yamato;R. Ogyu;Y. Watanabe
影响因子：
12.8
作者：
Miyoshi, Taro;Tsuyuhara, Tomoo;Watanabe, Yoshimasa
通讯作者：
Watanabe, Yoshimasa