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New insight into the fouling behavior of hydrophobic and hydrophilic polypropylene membranes in integrated membrane bioreactors
- Source :
- Environmental technology. 39(24)
- Publication Year :
- 2017
-
Abstract
- To investigate the effect of hydrophobic and hydrophilic polypropylene hollow fiber membranes (PPHFMs) applied in membrane bioreactors (MBR), the fouling behaviors of membrane surfaces and pores have been tested. The structural and morphological features on the membrane surface were characterized using attenuated total reflection-Fourier transform infrared spectroscopy, field emission scanning electron microscopy, atomic force microscope, energy dispersive X-ray spectroscopy and laser granularity distribution analysis. The results showed that significantly more polysaccharide, protein and inorganic ingredients were accumulated in the original membrane compared to the hydrophilic membrane. Furthermore, it was found that the pore size influenced the particle distribution and accumulation, such that smaller pore size membranes tended to contain fewer pollutants and a narrow size distribution. Under a constant flux of 11.5 L/m2 h, the transmembrane pressure (TMP) varied narrowly between 38 and 53 KPa....
- Subjects :
- Analytical chemistry
Infrared spectroscopy
02 engineering and technology
010501 environmental sciences
Membrane bioreactor
Polypropylenes
01 natural sciences
chemistry.chemical_compound
Bioreactors
Environmental Chemistry
Semipermeable membrane
Fiber
Waste Management and Disposal
0105 earth and related environmental sciences
Water Science and Technology
Polypropylene
Fouling
Chemistry
Membranes, Artificial
General Medicine
021001 nanoscience & nanotechnology
Membrane
Chemical engineering
Microscopy, Electron, Scanning
Particle
0210 nano-technology
Hydrophobic and Hydrophilic Interactions
Subjects
Details
- ISSN :
- 1479487X
- Volume :
- 39
- Issue :
- 24
- Database :
- OpenAIRE
- Journal :
- Environmental technology
- Accession number :
- edsair.doi.dedup.....ec414385db12531fb460927bb7275b5d