WASTEWATER TREATMENT USING COMBINATION OF MBR EQUIPPED WITH NON-WOVEN FABRIC FILTER AND OYSTER-ZEOLITE COLUMN

2005 ◽  
Vol 10 (5) ◽  
pp. 247-256 ◽  
Author(s):  
Yoo-Jin Jung ◽  
Hyun-Woong Koh ◽  
Won-Tae Shin ◽  
Nak-Chang Sung
Keyword(s):  
Wastewater Treatment ◽  
Woven Fabric ◽  
Fabric Filter

scholarly journals Development and evaluation of a prototype non-woven fabric filter for purification of malaria-infected blood

2011 ◽  
Vol 10 (1) ◽  
pp. 251 ◽  
Author(s):  
Zhi-Yong Tao ◽  
Hui Xia ◽  
Jun Cao ◽  
Qi Gao
Keyword(s):  
Woven Fabric ◽  
Infected Blood ◽  
Fabric Filter

Filtration characteristics of immersed coarse pore filters in an activated sludge system for domestic wastewater reclamation

2007 ◽  
Vol 55 (1-2) ◽  
pp. 51-58 ◽  
Author(s):  
G.T. Seo ◽  
B.H. Moon ◽  
Y.M. Park ◽  
S.H. Kim
Keyword(s):  
Activated Sludge ◽  
Domestic Wastewater ◽  
Woven Fabric ◽  
Wastewater Reclamation ◽  
Fabric Filter ◽  
Tubular Type ◽  
N Removal ◽  
Activated Sludge Reactor ◽  
Filtration Area ◽  
Plate Type

The filtration characteristics of two different module configurations with coarse pore filter (non-woven fabric) were investigated for sludge floc separation in an activated sludge reactor for domestic wastewater reclamation. A polypropylene non-woven fabric filter (35 g/m2) was used for the two different module configurations, one flat and one tubular type, each with a filtration area of 0.052 m2. The different module types, submerged in the oxic compartment of A/O (anaerobic/oxic) type reactors, were operated simultaneously. The filtration fluxes were gradually increased from 0.5 to 1.2 and 1.73 m/d. The filtration pressures were more stably maintained for the tubular type module than the plate type. The tubular type module installed horizontally with two-side suction showed less filtration pressures than the tubular type module installed vertically with one-side suction. The solid separation was significantly high showing less than 5 mg/L effluent solids. The organic and T-N removal efficiencies were around 95 and 50%, respectively. The 85% removal of T-P was achieved with 20 mg/L injection of PAC (poly-aluminum chloride).

Filtration Performances of Binary Mixture Suspension of Uniform Particles with a Polypropylene Non-Woven Fabric Filter

2009 ◽  
Vol 42 (4) ◽  
pp. 248-254
Author(s):  
Tatsuhiro Oshita ◽  
Kazuho Nakamura ◽  
Takuya Kosaka ◽  
Yoshie Marutani ◽  
Kanji Matsumoto
Keyword(s):  
Binary Mixture ◽  
Woven Fabric ◽  
Fabric Filter ◽  
Uniform Particles

Characteristics of flux and gel layer on microfilter and non-woven fabric filter surface based on anoxic–aerobic MBRs

2012 ◽  
Vol 35 (8) ◽  
pp. 1389-1398 ◽  
Author(s):  
Jung-Yeol Lee ◽  
Bo-Kyung Choi ◽  
Kyu-Hong Ahn ◽  
Sung Kyu Maeng ◽  
Kyung-Guen Song
Keyword(s):  
Woven Fabric ◽  
Fabric Filter ◽  
Filter Surface ◽  
Gel Layer

Fabric Filter Performance of Helicopter Inlet Barrier Filters

2012 ◽  
Vol 57 (3) ◽  
pp. 1-13 ◽  
Author(s):  
Nicholas Bojdo ◽  
Antonio Filippone
Keyword(s):  
Pressure Drop ◽  
Pressure Loss ◽  
Separation Efficiency ◽  
Engine Performance ◽  
Woven Fabric ◽  
Additional Restriction ◽  
Transient Pressure ◽  
Temporal Separation ◽  
Fabric Filter ◽  
Filter Performance

An inlet barrier filter system is integrated into the intake of a helicopter to perform the task of removing potentially harmful particles from engine-bound air. While performing a vital duty in the prolonging of engine life, their use may incur a loss of engine performance as a result of the pressure loss that is synonymous with air passing through a porous barrier. Furthermore, as particles collect on the filter they pose additional restriction to the flow of air, causing the pressure drop to increase over time. It is the objective of the present work to propose a low-order model to predict this transient pressure loss, in order that the performance of helicopters operating with inlet barrier filters may be analyzed. The contribution includes a model to predict the temporal separation efficiency of a woven fabric filter and the temporal change in pressure drop due to the buildup of particles on the filter.

Formaldehyde Removal Efficiency Using Nano-size Carbon Colloids

2011 ◽  
Vol 21 (6) ◽  
pp. 837-844 ◽  
Author(s):  
Seon-Hong Kim ◽  
Ki-Hoon Lee ◽  
Do-Hyeon Kim ◽  
Jong-Pill Park ◽  
Ji-Hoon Kim ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Spherical Shape ◽  
Woven Fabric ◽  
Fabric Filter ◽  
Formaldehyde Removal ◽  
Cheap Method ◽  
Normal Carbon ◽  
Efficiency Test ◽  
Nano Size ◽  
Carbon Filter

The purpose of this study was to assess the removal efficiency of formaldehyde using nano-size carbon colloid (NCC), which was produced by a comparatively easy and cheap method. In this study, nano-size carbon colloid based on water was produced by an electro-chemical method. The particles which have mostly a spherical shape with a diameter of, what is called, “nano-size” were produced. Non-woven fabric filter, which is currently on the market as a medium filter, was used for the removal efficiency test. Known concentration (0.5 ppm) of formaldehyde standard gas was used as a pollutant. The overall results indicate that: (1) nano-size carbon colloid which has a stable dispersibility, and of which diameter is approximately 10 nm or less was produced; (2) filters treated with nano-size carbon colloids showed a higher removal efficiency, 44.47 µg of HCHO removed/g of carbon and 19.28 µg of HCHO removed/g of carbon when compared to the control experiment using a normal carbon filter. The normal carbon filter system could only achieve 1.45 µg of HCHO removed/g of carbon.

Development of polyester needle-punched nonwoven fabrics for filter press applications

2018 ◽  
Vol 48 (10) ◽  
pp. 1566-1579 ◽  
Author(s):  
G Thilagavathi ◽  
N Muthukumar ◽  
S Neelakrishnan ◽  
R Santhosh Egappan
Keyword(s):  
Nonwoven Fabric ◽  
Filtration Efficiency ◽  
Filter Press ◽  
Woven Fabric ◽  
Nonwoven Fabrics ◽  
Fabric Filter ◽  
Cake Discharge ◽  
Fibre Fineness ◽  
Filtration Properties ◽  
Filter Fabrics

This paper reports the development of nonwoven fabric by needle-punching technique for filter press application in textile effluent treatment plant. For filter press development, the nonwoven fabric was reinforced with the nylon scrim as the central layer in order to withstand the filtration pressure. The nonwoven fabrics were developed using different denier polyester fibres and changing punch density. The influence of fibre fineness and punch density on the properties of nonwovens was investigated. The filtration parameters such as filtration efficiency, dewatering efficiency, blinding tendency and cake discharge properties of the developed nonwoven filter fabrics filter fabrics were evaluated and compared with existing woven fabric filter media. The influence of calendering on the filtration properties of the nonwovens was also studied. The results showed that bursting strength of the developed nonwovens increased with increase in fibre fineness and decrease in punch density. It was also found that the air permeability of the developed nonwovens varied inversely in relation to punch density and the proportion of fine fibres. It was observed that developed nonwovens had 8% higher filtration efficiency and 6% higher dewatering efficiency compared to the existing woven fabric filter media. The blinding resistance and cake discharge properties were slightly lower than that of woven fabric filter. It was found that calendering improves filtration properties of the developed nonwoven fabrics.

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