[Membrane fouling alleviation characteristics of sludge/water pre-separation MBR].
Huan Jing Ke Xue
; 30(7): 1978-82, 2009 Jul 15.
Article
em Zh
| MEDLINE
| ID: mdl-19774995
ABSTRACT
A long-term operation was conducted to investigate the alleviation of membrane fouling by sludge/water pre-separation membrane bioreactor (S/W-MBR). The variation of trans-membrane pressure (TMP), concentration of sludge and extracellular polymeric substances (EPS) on S/W-MBR and submerged membrane bioreactor (SMBR) was also studied. The results showed that the sludge concentration in S/W-MBR was basically identical with that of SMBR's biotic area, while the sludge concentration was significantly decreased in S/W-MBR's membrane area than that of SMBR's. The concentration of EPS was increased with operation time in both two MBRs' biotic area, but it was lower and basically maintained at the level of 15 mg/g in S/W-MBR's membrane area. The S/W-MBR was more capable of alleviating membrane fouling, and it had been cleaned only 2 times while the SMBR who had been cleaned 5 times during the period of about 90 days laboratory performance.
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Base de dados:
MEDLINE
Assunto principal:
Esgotos
/
Eliminação de Resíduos Líquidos
/
Análise de Falha de Equipamento
/
Reatores Biológicos
Idioma:
Zh
Ano de publicação:
2009
Tipo de documento:
Article