Study on preparation and properties of PVA-SA-PHB-AC composite carrier for microorganism immobilization

2013 ◽  
Vol 131 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
Ting Li ◽  
Yuan Ren ◽  
Chaohai Wei
Keyword(s):  
Microorganism Immobilization ◽  
Composite Carrier

scholarly journals Carbohydrates–chitosan composite carrier for Vero cell culture

2016 ◽  
Vol 68 (6) ◽  
pp. 2649-2658
Author(s):  
Ya-Ching Lin ◽  
Guan-Ting Chen ◽  
Sheng-Chi Wu
Keyword(s):  
Cell Culture ◽  
Vero Cell ◽  
Vero Cell Culture ◽  
Chitosan Composite ◽  
Composite Carrier

Anodic Oxidation and Electropolymerization on CF Surface and Effects on Immobilization of Microorganism in Waste Water

2012 ◽  
Vol 253-255 ◽  
pp. 975-979
Author(s):  
Yan Ling Bao ◽  
Guang Ze Dai
Keyword(s):  
Waste Water ◽  
Surface Roughness ◽  
Carbon Fiber ◽  
Anodic Oxidation ◽  
Photoelectron Spectroscopy ◽  
Treatment Process ◽  
Waste Water Treatment ◽  
X Ray ◽  
Water Treatment Process ◽  
Microorganism Immobilization

The PAN-based carbon fiber (CF) was choosen as a bio-carrier in waste water treatment process, which was modified by anodic oxidation and electropolymerization using sulphuric acid and maleic anhydride (MA) respectively. The morphology and propeties of CF surface were characterized by laser confocal microsopy (LCM), X-ray photoelectron spectroscopy (XPS) and the degree of moisture (DM), and the consequence of biocompatibility nature on CF surface was therefore indicated by immobilization results of microorganisms. It shows that the surface hydrophilicity, oxygen containing groups and surface roughness of CF would contribute greatly to improve the immobilization ability of microorganisms on CF surface. And acid anodic oxidation is more effective on microorganism immobilization than MA electropolymerization.

H2SO4 and Maleic Anhydride Electrochemistry Modifications on Carbon Fiber and Effects on Immobilization of Microorganism in Waste Water

2012 ◽  
Vol 209-211 ◽  
pp. 2013-2017
Author(s):  
Yan Ling Bao ◽  
Guang Ze Dai ◽  
Jing Jing Ling ◽  
Qing Qing Ni
Keyword(s):  
Waste Water ◽  
Surface Roughness ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Carbon Fiber ◽  
Maleic Anhydride ◽  
Surface Morphology ◽  
Fourier Transform Infrared Spectroscopy ◽  
The Other ◽  
Microorganism Immobilization

PAN-based carbon fiber (CF) was modified by electrochemistry using H2SO4 and maleic anhydride (MA) in current rearch. The CF surface morphology and natures were characterized by specific facilities, such as laser confocal microsopy (LCM), Fourier transform infrared spectroscopy (FTIR) and the degree of moisture. On the other hand, the biocompatibility nature was indicated by immobilization results of microorganisms on CF. The outcomes show that the surface hydrophilicity, oxygen-based function-groups and surface roughness of CF would contribute greatly to improve the immobilization ability of microorganisms on CF surface. And H2SO4 anodic oxidation on CF has more effect on microorganism immobilization than MA electropolymerization.

Preparation of Composite Carrier Material Immobilized Activated Sludge and Application in Treating Wastewater

2010 ◽  
Vol 113-116 ◽  
pp. 301-304 ◽  
Author(s):  
Qian Nie ◽  
Fang Gu
Keyword(s):  
Mass Transfer ◽  
Polyvinyl Alcohol ◽  
Activated Sludge ◽  
Removal Rate ◽  
Transfer Property ◽  
Carrier Material ◽  
Preparation Conditions ◽  
Cod Removal Rate ◽  
Oil Wastewater ◽  
Composite Carrier

The optimum preparation conditions of polyvinyl alcohol (PVA) immobilized activated sludge are investigated, the results show that the concentration of the entrapping agents PVA is 10%(W/V), the mass ration of the activated sludge and entrapping agents is 1∶1(W/V) and the crosslinking time is 24 h. Pelletability and mass transfer property of immobilized activated sludge are improved by adding 1% sodium alginate (SA) into entrapping agents, the intensity of immobilized activated sludge and COD removal rate of oil wastewater can be increased simultaneously by using inorganic composited carrier material.

Synthesis and Application of Polyurethane Hydrogel Carrier on Nitrobacteria Immobilization

2010 ◽  
Vol 152-153 ◽  
pp. 1533-1536 ◽  
Author(s):  
Ya Mei Dong ◽  
Yong Wei Jin ◽  
Zhen Jia Zhang
Keyword(s):  
Microbial Growth ◽  
Respiratory Activity ◽  
Waterborne Polyurethane ◽  
Nitrifying Bacteria ◽  
Microbial Immobilization ◽  
Microorganism Immobilization ◽  
Before And After ◽  
Polyurethane Hydrogel ◽  
Polyether Polyol ◽  
Immobilization Method

A new microorganism immobilization method involving preparation and gelation of waterborne polyurethane (WPU) was developed. The WPU prepolymer was synthesized by polyether polyol, isophoronediisocyanate (IPDI), 2-hydroxylethyl methacrylate (HEMA) were prepared by radical polymerization. The feasibility of the proposed immobilization method was tested by nitrifying bacteria. The effects of WPU prepolymer and gelation process on the activity of nitrifying bacteria were investigated by relative respiratory activity. The microbial growth and distribution of immobilized nitrobacteria were observed with a scanning electron microscope (SEM) before and after acclimation. The results verified that the waterborne polyurethane is an ideal microbial immobilization support material and has a great potential for a variety of biological wastewater treatment applications.

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