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Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling
นักวิจัย : Agarwal, Ashutosh , Xu, Huijuan , Ng, Wun Jern , Liu, Yu
คำค้น : -
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Agarwal, A., Xu, H., Ng, W. J., & Liu, Y. (2012). Biofilm detachment by self-collapsing air microbubbles: a potential chemical-free cleaning technology for membrane biofouling. Journal of Materials Chemistry, 22(5), 2203-2207. , http://hdl.handle.net/10220/11559 , http://dx.doi.org/10.1039/c1jm14439a
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of materials chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Microbubbles (MBs) have been known for their ability to generate pressure waves through shrinking and subsequent self-collapsing phenomenon. In the present study, we have investigated the potential of air MBs for biofilm detachment from a nylon membrane surface in comparison to chemical cleaning by sodium hypochloride (NaOCl). About 88% of fixed biomass detachment was observed after 1 h air microbubbling, while only 10% of biofilm detachment was achieved in the control experiment without microbubbles. Images taken with a confocal laser scanning microscope (CLSM) clearly showed that nearly all extracellular polysaccharides and proteins in biofilms were removed from the membrane surface, indicating a complete disruption of the extracellular polymeric matrix of biofilms. It was further demonstrated that microbubbling is much more efficient than chemical cleaning with 0.5% NaOCl solution in terms of removal of fixed biomass and extracellular polysaccharides and proteins. This study provides experimental evidence showing that self-collapsing air MBs is a chemical-free and eco-friendly technology for biofilm detachment.

บรรณานุกรม :
Agarwal, Ashutosh , Xu, Huijuan , Ng, Wun Jern , Liu, Yu . (2555). Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Agarwal, Ashutosh , Xu, Huijuan , Ng, Wun Jern , Liu, Yu . 2555. "Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Agarwal, Ashutosh , Xu, Huijuan , Ng, Wun Jern , Liu, Yu . "Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Agarwal, Ashutosh , Xu, Huijuan , Ng, Wun Jern , Liu, Yu . Biofilm detachment by self-collapsing air microbubbles : a potential chemical-free cleaning technology for membrane biofouling. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.