PMID- 29965575
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20181105
LR  - 20181105
IS  - 0250-3301 (Print)
IS  - 0250-3301 (Linking)
VI  - 38
IP  - 3
DP  - 2017 Mar 8
TI  - [Effects of Pretreatment on Hydraulic Irreversible Membrane Fouling During 
      Ultrafiltration Short Process: A Pilot Study].
PG  - 1046-1053
LID - 10.13227/j.hjkx.201608028 [doi]
AB  - Pilot-scale performances for ultrafiltration of Dongjiang river water without and 
      with micro-coagulation and coagulation-adsorption-sedimentation pretreatments 
      were conducted to investigate the effects of pretreatments on hydraulic 
      irreversible fouling of ultrafiltration short processes. Scanning electron 
      microscope (SEM) imaging, high performance size exclusion chromatography (HPSEC) 
      and fluorescence excitation-emission matrix (EEM) were employed to identify 
      foulants responsible for irreversible fouling during ultrafiltration with and 
      without pretreatments. The results showed that the hydraulic irreversible fouling 
      rate was 0.16 kPa.d(-1) with micro-coagulation pretreatment at 10 L.(m(2).h)(-1), 
      while the rate without pretreatment was 0.32 kPa.d(-1) at the same flux. 
      Meanwhile, the fouling rate with coagulation-adsorption-sedimentation 
      pretreatment was almost zero at the same flux. Furthermore, when the flux 
      increased to 17 L.(m(2).h)(-1), the irreversible fouling was not observable with 
      coagulation-adsorption-sedimentation pretreatment (backwashing every 24 hours). 
      Properties of foulants from external membrane and internal membrane after 
      backwashing showed that the protein-like and fulvic-like substances were 
      responsible for irreversible fouling in Dongjiang river water. Furthermore, 
      structural alteration of cake layer resulted in less cake resistance and higher 
      backwash efficiency after micro-coagulation pretreatment, leading to less 
      irreversible fouling. Coagulation-adsorption-sedimentation pretreatment decreased 
      irreversible fouling with higher removal efficiency of protein-like and fulvic 
      substances, which were the foulants responsible for irreversible fouling during 
      ultrafiltration. Both micro-coagulation and coagulation-adsorption-sedimentation 
      pretreatments decreased irreversible fouling during ultrafiltration short 
      process.
FAU - Yang, Hai-Yan
AU  - Yang HY
AD  - Guangdong GDH Water Co., Ltd., Shenzhen 518021, China.
AD  - School of Environmental and Municipal Engineering, Harbin Institute of 
      Technology, Harbin 150090, China.
FAU - Xing, Jia-Jian
AU  - Xing JJ
AD  - School of Environmental and Municipal Engineering, Harbin Institute of 
      Technology, Harbin 150090, China.
FAU - Wang, Can
AU  - Wang C
AD  - School of Environmental and Municipal Engineering, Qingdao University of 
      Technology, Qingdao 266033, China.
FAU - Sun, Guo-Sheng
AU  - Sun GS
AD  - Guangdong GDH Water Co., Ltd., Shenzhen 518021, China.
FAU - Zhao, Yan
AU  - Zhao Y
AD  - Guangdong GDH Water Co., Ltd., Shenzhen 518021, China.
FAU - Liang, Heng
AU  - Liang H
AD  - School of Environmental and Municipal Engineering, Harbin Institute of 
      Technology, Harbin 150090, China.
FAU - Xu, Ye-Qin
AU  - Xu YQ
AD  - Guangdong GDH Water Co., Ltd., Shenzhen 518021, China.
FAU - Li, Gui-Bai
AU  - Li GB
AD  - School of Environmental and Municipal Engineering, Harbin Institute of 
      Technology, Harbin 150090, China.
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Huan Jing Ke Xue
JT  - Huan jing ke xue= Huanjing kexue
JID - 8405344
OTO - NOTNLM
OT  - low flux
OT  - membrane foulants
OT  - pretreatment
OT  - short process
OT  - ultrafiltration
EDAT- 2017/03/08 00:00
MHDA- 2017/03/08 00:01
CRDT- 2018/07/03 06:00
PHST- 2018/07/03 06:00 [entrez]
PHST- 2017/03/08 00:00 [pubmed]
PHST- 2017/03/08 00:01 [medline]
AID - 10.13227/j.hjkx.201608028 [doi]
PST - ppublish
SO  - Huan Jing Ke Xue. 2017 Mar 8;38(3):1046-1053. doi: 10.13227/j.hjkx.201608028.