scholarly journals Drinking Water Treatment in Submerged Hollow Fiber Microfiltration: Effect of Backwashing

2016 ◽  
Author(s):  
Ergün Yildiz ◽  
Ibrahim Cengiz ◽  
Arzu Kop ◽  
Nejdet Degermenci ◽  
Alper Nuhoglu
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Hollow Fiber ◽  
Drinking Water Treatment

Effect of axial variation of flux on filtration characteristics of hollow fiber membrane for drinking water treatment

2007 ◽  
Vol 7 (4) ◽  
pp. 95-101
Author(s):  
Hyun-je Oh ◽  
June-Seok Choi ◽  
Byong-Bo Choi ◽  
Sangho Lee ◽  
Tae-Mun Hwang
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Drinking Water Treatment ◽  
Model Parameters ◽  
Fiber Membrane ◽  
Fiber System ◽  
Axial Distribution ◽  
Critical Flux

Understanding the fouling phenomena in submerged membrane systems is challenging because the efficiency of hollow fiber membrane highly depends on the dimensions of the fibers as well as filtration conditions. Thus, modeling filtration behavior of hollow fibers is important for improving the performance of hollow fiber system. In this work, a theoretical model based on critical flux concept was developed to simulate filtration resistance and axial pressure drop along the fiber in drinking water treatment. The application of a model for experimental data indicated that the model matches the experiments quite well. Thus, simulation of membrane system was carried out under various conditions using the parameters from the model fit. The axial distribution of pressure and flux affect the filtration characteristics of hollow fiber membranes. The effect of model parameters (specific cake resistance and critical flux) and module geometry were theoretically also investigated using the model.

scholarly journals Pengolahan Air Tanah di Kawasan Politeknik Negeri Bandung menjadi Air Minum dengan Metoda Ultrafiltrasi

2018 ◽  
Vol 2 (2) ◽  
pp. 55
Author(s):  
Emma Hermawati Muhari ◽  
Ayu Ratna Permanasari ◽  
Fitria Yulistiani
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Ground Water ◽  
Hollow Fiber ◽  
Vinylidene Fluoride ◽  
Hollow Fiber Membrane ◽  
Drinking Water Treatment ◽  
Dead End ◽  
Long Time ◽  
Total Dissolved Solid

Di Indonesia, khususnya di sekitar Politeknik Negeri Bandung, sebagian besar sumber air berasal dari air tanah. Air tanah di lingkungan Politeknik Negeri Bandung memiliki pH asam (< 6), coliform > 2.400, dan colitinja positif. Proses pemanasan air kurang efektif untuk mengolah air tanah karena memerlukan waktu yang relatif lama, energi besar, dan tidak dapat meningkatkan pH air agar memenuhi standar air minum sebagaimana tercantum dalam Permenkes Nomor 492/MENKES/PER/IV/2010. Untuk mengolah air tanah di lingkungan Politeknik Negeri Bandung, telah dibuat alat pengolahan air minum portabel dengan menggunakan konsep aliran dead-end filtration. Membran yang dipakai merupakan membran hollow-fiber, berjenis membran ultrafiltrasi berbahan dasar PVDF (Poly Vinylidene Flouride), ukuran pori 0,1μm, panjang membran 15cm, jumlah membran sebanyak 148 buah, dan dapat dioperasikan pada daya isap normal manusia.  Permeat yang dihasilkan sesuai dengan standar PERMENKES No. 492/MENKES/PER/IV/2010 dari parameter fisika, kimia, dan biologi. Lifetime membran diamati melalui jumlah permeat yang dihasilkan dari awal pemakaian membran hingga membran tersebut rusak. Lifetime pada alat pengolah air minum portabel ini adalah 38,879 L. Pengolahan air tanah menggunakan alat ini  dapat menaikkan pH sebesar 12,78%, menurunkan konduktivitas sebesar 39,31%, dan menurunkan Total Dissolved Solid (TDS) 13,72%. Dari segi ekonomi, penggunaan alat ini dapat menghemat biaya 50% dibandingkan dengan pembelian air minum kemasan 600 ml.In Indonesia, especially around the Bandung State Polytechnic, most of the water sources come from ground water. Ground water in the Bandung State Polytechnic environment has acidic pH (<6), coliform> 2,400, and positive colitis. The process of water heating is less effective for treating ground water because it requires a relatively long time, large energy, and can not increase the pH of the water to meet drinking water standards as stated in Permenkes No. 492 / MENKES / PER / IV / 2010. To treat ground water in the Bandung State Polytechnic, portable drinking water treatment equipment has been made using the concept of dead-end flow filtration. The membrane used is a hollow-fiber membrane, a type of ultrafiltration membrane made from PVDF (Poly Vinylidene Fluoride), pore size of 0.1μm, membrane length of 15cm, membrane number of 148 pieces, and can be operated on normal human suction. The permeate produced is in accordance with PERMENKES No. 492 / MENKES / PER / IV / 2010 from physical, chemical and biological parameters. Lifetime membranes are observed through the amount of permeate produced from the beginning of the use of the membrane until the membrane is damaged. Lifetime of this portable drinking water treatment device is 38,879 L. Ground water treatment using this tool can increase pH by 12.78%, decrease conductivity by 39.31%, and reduce Total Dissolved Solid (TDS) 13.72%. From an economic standpoint, the use of this tool can save 50% costs compared to the purchase of 600 ml of bottled water.

Pilot plant evaluation of an ozone-microfiltration system for drinking water treatment

2000 ◽  
Vol 41 (10-11) ◽  
pp. 17-23 ◽  
Author(s):  
M. Hashino ◽  
Y. Mori ◽  
Y. Fujii ◽  
N. Motoyama ◽  
N. Kadokawa ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Drinking Water Treatment ◽  
Feed Water ◽  
Permeate Flux ◽  
Fiber Membrane ◽  
Filtration System ◽  
Plant Evaluation

We have developed a novel ozone resistant microfiltration (MF) module using an organic hollow fiber membrane made of polyvinylidenefluoride (PVDF). A new filtration system using this MF module together with ozone dose provided three to four times higher permeate flux compared with the filtration without ozone. The reaction of ozone with organic materials in feed water was necessary to occur on the surface of the membrane to have higher permeate flux.

Drinking water treatment by using ultrafiltration hollow fiber membranes

Desalination ◽  
1996 ◽  
Vol 106 (1-3) ◽  
pp. 55-61 ◽  
Author(s):  
Shuji Nakatsuka ◽  
Ichiro Nakate ◽  
Tadaaki Miyano
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Hollow Fiber ◽  
Drinking Water Treatment ◽  
Hollow Fiber Membranes ◽  
Fiber Membranes
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