Coupling microfiltration membrane with biocathode microbial desalination cell enhances advanced purification and long-term stability for treatment of domestic wastewater
Coupling microfiltration membrane with biocathode microbial desalination cell enhances advanced purification and long-term stability for treatment of domestic wastewater
复制标题
微滤膜与生物阴极微生物海水淡化池的耦合增强了生活废水处理的高级净化和长期稳定性
DOI：
10.1016/j.memsci.2017.10.034
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发表时间：
2018-02
期刊：
影响因子：
--
通讯作者：
Xia Huang
中科院分区：
文献类型：
--
作者：
Kuichang Zuo;Mansheng Chen;Fubin Liu;Kang Xiao;Jiaolan Zuo;Xiaoyuan Zhang;Peng Liang;Xia Huang
本研究制作了中空纤维微滤膜耦合生物阴极微生物脱盐电池。HFM-MDC采用真实的废水从厌氧阳极到好氧生物阴极，经过HFM过滤，最后到达中央膜堆，充分发挥了传统厌氧/好氧工艺、膜生物膜反应器和电去离子技术的优势，在105 d的运行中实现了有机物、悬浮物和盐度的深度去除。最终电导率为59.2 ± 12.2 μS/cm，化学需氧量为35.5 ± 4.0 mg/L，总氮为1.65 ± 0.39 mg/L，总磷为0.14 ± 0.05 mg/L。相应的浓缩物（13.9 v%）浓缩了初始电导率（6044 ± 168 μS/cm）的6.7倍，回收了98.7%的磷（TP为40.9 ± 4.9 mg/L）和部分氮。此外，通过系数曝气冲洗和定期化学反冲洗，HFM系统稳定运行了105 d，跨膜压力大部分时间保持在≤ 15 kPa。此外，该集成工艺仅需废水作为唯一的进水，且与传统的Pt阴极相比，HFM耦合生物阴极相对便宜，为MDC在废水净化中的实际应用提供了一种有前途的解决方案。
In this study, a hollow fiber microfiltration membrane (HFM) coupled biocathode microbial desalination cell (MDC) was fabricated. With real wastewater flowing serially from anaerobic anode to oxic biocathode, filtered by the HFM and finally to the central membrane stack, the HFM-MDC took advantages of conventional anaerobic/oxic process, membrane biofilm reactor, and eletrodeionization technology, realizing advanced removal of organics, suspended solids, and salinity during 105 days of operation. The produced diluate was 86.1 v%, with final conductivity, chemical oxygen demand, total nitrogen, and total phosphorus (TP) reaching 59.2 ± 12.2 μS/cm, 35.5 ± 4.0 mg/L, 1.65 ± 0.39 mg/L, and 0.14 ± 0.05 mg/L respectively. The corresponding concentrate (13.9 v%) concentrated 6.7 times the initial conductivity (6044 ± 168 μS/cm), recovered 98.7% of phosphorous (TP of 40.9 ± 4.9 mg/L) and part of nitrogen. In addition, the HFM was stably operated for 105 days due to coefficient aeration flushing and regular chemical backwashing, with trans-membrane pressure keeping at ≤ 15 kPa for most of time. Moreover, this integrated process only needs wastewater as sole water input, and possesses a relative cheap HFM coupled biocathode compared with conventional Pt cathode, providing a promising solution for practical application of MDC in wastewater purification.
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影响因子：
11.4
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影响因子：
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