Composite filter for Vanderlugt correlator

1999 ◽  
Author(s):  
Craig I. Watson ◽  
Patrick J. Grother ◽  
Eung Gi Paek ◽  
Charles L. Wilson
Keyword(s):  
Composite Filter ◽  
Vanderlugt Correlator

A multifunctional multi-walled carbon nanotubes/ceramic membrane composite filter for air purification

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 91951-91959 ◽  
Author(s):  
Yang Zhao ◽  
Zhaoxiang Zhong ◽  
Ze-Xian Low ◽  
Zhong Yao
Keyword(s):  
Carbon Nanotubes ◽  
Ceramic Membrane ◽  
Small Diameter ◽  
Capture Efficiency ◽  
Air Purification ◽  
Particle Capture ◽  
Multi Walled Carbon Nanotubes ◽  
Composite Filter ◽  
Walled Carbon Nanotubes

Carbon nanotubes (CNTs) are very small diameter fibers that have the potential to be integrated into filters to further increase particle capture efficiency.

scholarly journals 3-D woven, mullite matrix, composite filter

1995 ◽  
Author(s):  
J.E. Lane ◽  
C.J. Painter ◽  
K.C. LeCostaouec, J.F. Radford
Keyword(s):  
Matrix Composite ◽  
Composite Filter

Initial fluoride concentration and loading capacity in defluoridation with bauxite, gypsum, magnesite and their composite

2014 ◽  
Vol 4 (2) ◽  
pp. 200-205 ◽  
Author(s):  
Bernard Thole
Keyword(s):  
Fluoride Concentration ◽  
Power Relation ◽  
Loading Capacity ◽  
Skeletal Fluorosis ◽  
Raw Water ◽  
Initial Concentration ◽  
Dental And Skeletal Fluorosis ◽  
The Media ◽  
Composite Filter ◽  
Logarithmic Relation

One of the parameters that impact on fluoride sorption capacities of materials in water defluoridation is initial concentration. Water from various sources will have different fluoride concentrations; as such the employment of a particular media in defluoridation requires information on how the media will perform in different concentrations. Consequently, research was carried out to determine how initial fluoride concentrations in raw water affect capacity in defluoridation with bauxite, gypsum, magnesite and their composite, and to investigate the possibility of predicting loading capacity of their composite filter through initial fluoride concentration to optimize their application in defluoridation. The results showed that sorption capacities increased with increase in initial concentrations. However, higher starting concentrations resulted in larger residual fluoride concentrations; as such the benefit of large sorption capacities obtained was overshadowed. Polynomial relations of capacity (Cs, mg/g) and initial concentration (Co, mg/l), were obtained for bauxite and gypsum. Magnesite obtained a logarithmic relation for Cs and Co. A power relation was obtained between Cs and Co for their composite, Cs = 0.0328C1.20160. Approximation of capacities of this composite from initial fluoride concentrations was feasible. Water defluoridation has become important as a result of dental and skeletal fluorosis.

The spatially-distributed recording of the composite filter using the pixelated liquid crystal display

1999 ◽  
Vol 163 (4-6) ◽  
pp. 169-174
Author(s):  
Jinn Tsai ◽  
Shiuan-Huei Lin ◽  
Tai-Chiung Hsieh ◽  
Ken Hsu
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Spatially Distributed ◽  
Composite Filter

An iron-carbon-activated carbon and zeolite composite filter, anaerobic-aerobic integrated denitrification device for nitrogen removal in low C/N ratio sewage

2019 ◽  
Vol 80 (2) ◽  
pp. 223-231
Author(s):  
Yixuan Xie ◽  
Ajun Wan ◽  
Xingmin Wang ◽  
Hengjie Dong ◽  
Yunpeng Wu
Keyword(s):  
Activated Carbon ◽  
Nitrogen Removal ◽  
High Efficiency ◽  
Strong Shock ◽  
Autotrophic Denitrification ◽  
Low Carbon ◽  
Carbon Nitrogen Ratio ◽  
Nitrogen Ratio ◽  
Composite Filter ◽  
Zeolite Composite

Abstract In this study, we use an anaerobic-aerobic integrated denitrification (Fe/C-ZACID) device with an iron-carbon-activated carbon and zeolite composite filter to remove nitrogen from simulated low carbon-nitrogen ratio (C/N) sewage. The impacts of dissolved oxygen (DO) level, hydraulic retention time (HRT), C/N and nitrate recirculation ratio on denitrification performance were studied. The results show that when HRT was 6 h, DO was 3 ± 0.1 mg/L, influent C/N was 3, and nitrate recirculation ratio was 100%, and removal rates of 95% for ammonia and 85% for total nitrogen (TN) were achieved. A beaker comparison test demonstrated that this synergistic denitrification system included heterotrophic denitrification, physicochemical denitrification, iron autotrophic denitrification and hydrogen autotrophic denitrification, etc. The Fe/C-ZACID device has a high-efficiency nitrogen removal effect for low C/N ratio sewage and strong shock resistance, which provides technical support and a theoretical basis for advanced denitrification of rural domestic sewage.

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