Volume 9 Issue 3
May  2019
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Article Navigation >  Journal of Environmental Engineering Technology  > 2019  >  9(3): 245-251
ZHANG Hengliang, DUAN Liang, YAO Meichen, WEI Jian. Study on performance and membrane fouling of MBBR-MBR combined process for treatment of domestic wastewater[J]. Journal of Environmental Engineering Technology, 2019, 9(3): 245-251. doi: 10.12153/j.issn.1674-991X.2019.01.240
Citation: ZHANG Hengliang, DUAN Liang, YAO Meichen, WEI Jian. Study on performance and membrane fouling of MBBR-MBR combined process for treatment of domestic wastewater[J]. Journal of Environmental Engineering Technology, 2019, 9(3): 245-251. doi: 10.12153/j.issn.1674-991X.2019.01.240
shu

Study on performance and membrane fouling of MBBR-MBR combined process for treatment of domestic wastewater

doi: 10.12153/j.issn.1674-991X.2019.01.240

  • 1. College of Water Sciences, Beijing Normal University, Beijing 100875, China

  • 2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • 3. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

More Information
  • Corresponding author: Liang DUAN E-mail: duanliang@craes.org.cn
  • Received Date: 2018-11-09
  • Publish Date: 2019-05-20
    Abstract
  • A moving bed biofilm reactor(MBBR)-membrane bioreactor(MBR) combined process was constructed to treat domestic wastewater, and the removal effect of pollutant and membrane fouling were investigated. The results showed that the removal rate of $NH_{4}^{+}$-N and COD could reach 97% by MBBR-MBR. The membrane suction pressure in MBR was characterized by a slow increase and then a rapid increase with the extension of the running time. Extracellular polymeric substances (EPS) and soluble microbial products (SMP) were important factors influencing membrane fouling. Ordinary chemical cleaning did not restore the MBR membrane module to the level of the new, showing irreversibility. The apparent molecular weight distribution of EPS was more extensive, while the apparent molecular weight of SMP exhibited a single peak characteristic. SMP was mainly composed of small molecular weight substances.

     

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