Powdered activated carbon coated hollow fiber membrane: Preliminary studies on its ability to limit membrane fouling and to remove organic materials

2005 ◽  
Vol 22 (2) ◽  
pp. 250-255 ◽  
Author(s):  
Ramesh Thiruvenkatachari ◽  
Wang Geun Shim ◽  
Jae Wook Lee ◽  
Hee Moon
Keyword(s):  
Activated Carbon ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Organic Materials ◽  
Hollow Fiber Membrane ◽  
Powdered Activated Carbon ◽  
Fiber Membrane ◽  
Carbon Coated

Reuse of carwash wastewater with hollow fiber membrane aided by enhanced coagulation and activated carbon treatments

2007 ◽  
Vol 56 (12) ◽  
pp. 111-118 ◽  
Author(s):  
Tang Li ◽  
Tan Xue-jun ◽  
Cui Fu-yi ◽  
Zhou Qi ◽  
Yin Jun
Keyword(s):  
Activated Carbon ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Permeation Flux ◽  
Fiber Membrane ◽  
Enhanced Coagulation ◽  
Reuse Water ◽  
Gel Layer ◽  
Membrane Flux ◽  
Adsorption Treatment

The particles from carwash wastewater were separated by a hollow fiber membrane aided by a enhanced coagulation and activated carbon. This study demonstrated that the addition of KMnO4 to coagulant (PAC) could enhance the efficiency of coagulation, which helped reduce clogging of the ultrafiltration membrane and activated carbon. The existence of LAS can loosen the gel layer on the membrane and improve the flux. Adsorption of particles such as organic matter and oil is the main reason causing membrane flux decrease. When carwash wastewater was pretreated, the permeation flux of membrane showed a higher value. LAS, odour and colour are removed by GAC adsorption treatment at last. The COD, BOD, LAS and oil of reuse water was 33.4 mg/L, 4.8 mg/L, 0.06 mg/L and 0.95 mg/L, respectively.

scholarly journals The Effect of Ca and Mg Ions on the Filtration Profile of Sodium Alginate Solution in a Polyethersulfone-2-(methacryloyloxy) Ethyl Phosphorylchloline Membrane

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1207 ◽  
Author(s):  
Nasrul Arahman ◽  
Suffriandy Satria ◽  
Fachrul Razi ◽  
M. Bilad
Keyword(s):  
Sodium Alginate ◽  
Relative Permeability ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Membrane Filtration ◽  
Hollow Fiber Membrane ◽  
Pure Water ◽  
Fiber Membrane ◽  
Cake Layer ◽  
The Stability

The efforts to improve the stability of membrane filtration in applications for wastewater treatment or the purification of drinking water still dominate the research in the field of membrane technology. Various factors that cause membrane fouling have been explored to find the solution for improving the stability of the filtration and prolong membrane lifetime. The present work explains the filtration performance of a hollow fiber membrane that is fabricated from polyethersulfone-2-(methacryloyloxy) ethyl phosphorylchloline while using a sodium alginate (SA) feed solution. The filtration process is designed in a pressure driven cross-flow module using a single piece hollow fiber membrane in a flow of outside-inside We investigate the effect of Ca and Mg ions in SA solution on the relative permeability, membrane resistance, cake resistance, and cake formation on the membrane surface. Furthermore, the performance of membrane filtration is predicted while using mathematical models that were developed based on Darcy’s law. Results show that the presence of Ca ions in SA solution has the most prominent effect on the formation of a cake layer. The formed cake layer has a significant effect in lowering relative permeability. The developed models have a good fit with the experimental data for pure water filtration with R2 values between 0.9200 and 0.9999. When treating SA solutions, the developed models fit well with experimental with the best model (Model I) shows R2 of 0.9998, 0.9999, and 0.9994 for SA, SA + Ca, and SA + Mg feeds, respectively.

Analysis of Axial Local Flux Characteristics in Hollow-Fiber Membrane

2013 ◽  
Vol 788 ◽  
pp. 413-417 ◽  
Author(s):  
Zhao Cui ◽  
Jie Wang ◽  
Hui Jia ◽  
Xiao Hong Dai ◽  
Yan Zhang
Keyword(s):  
Uniform Distribution ◽  
Hollow Fiber ◽  
Membrane Fouling ◽  
Fiber Length ◽  
Flux Distribution ◽  
Hollow Fiber Membrane ◽  
Operating Mode ◽  
Fiber Membrane ◽  
Local Pressure ◽  
Critical Flux

Based on the characteristics of non-uniform distribution in the fouling of hollow-fiber membrane, the non-uniform distribution of local flux and redistribution with different fiber length (0.6 m、1.2 m、1.6 m) was investigated experimentally. Experiment was conducted under the condition of operating flux 20 L/m2h (20 LMH). The results indicated that the longer fiber length was, the greater difference in local pressure and the more non-uniform the local flux distributed. Under operating mode of critical flux, the flux distribution in the length of 1.6 m membrane fiber is the most non-uniform with the fastest fouling rate. In addition, the distribution of local flux is more uniform for 0.6 m fiber under the operating flux of 16 LMH, which also slow down membrane fouling significantly. Shorter membrane fiber generally exhibited higher uniformity in the local flux distribution and slower development rate of membrane fouling.

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