1. The document discusses the development of a composite nonwoven filter for pre-filtration of textile effluents using nanotechnology.
2. The filter is made of polyethersulfone nanofibers spread over a polyester nonwoven fabric. Testing showed the composite filter was able to remove 75% of particles from textile dyeing effluent.
3. Using this filter for pre-filtration before microfiltration could potentially increase the overall cleaning efficiency of textile wastewater treatment to 91%.
Nanofiber Technology & different techniques. Eliminating the use of solvent MEK. Suitable solvents with different Techniques to produce nanofiber coatings. Applications of nanofiber technology. Market analysis and startup project team build up for the same.
Basic description of nanofibers, their propeties. The type of marterials used for the preparation of nanofibers and the techniques involves into it. Also the recent technologies emerging fot the prodcution of nanofibers.
Nanofiber Technology & different techniques. Eliminating the use of solvent MEK. Suitable solvents with different Techniques to produce nanofiber coatings. Applications of nanofiber technology. Market analysis and startup project team build up for the same.
Basic description of nanofibers, their propeties. The type of marterials used for the preparation of nanofibers and the techniques involves into it. Also the recent technologies emerging fot the prodcution of nanofibers.
EXPERIMENTAL INVESTIGATION OF MECHANICAL AND DYNAMIC CHARACTERISTICS OF HYBRI...ijiert bestjournal
From decades,natural fibers in the form of reinforcements in polymer composites have been a test subject for scientists because of its growing familiarity wide range of application s. Banana (B) and S isal (S) fibers are in good potential as reinforcement is polymer composite. The hybridisation of short Banana and Sisal fibers produce s good properties compared to only Banana fiber. In this present work,an experimental study has been conducted to determine the effect of only banana fiber and effect of volume fraction namely B - S 20 - 20%,B - S 30 - 10% and B - S 10 - 30% on vibrational analysis par ameter s such as Natural frequency,damping ratio and mode shapes of Banana and Sisal fibers reinforced with epoxy resin Lapox L - 12 using FFT analyzer . The nodes created on the test specimen is hit by an impact hammer causes the vibration which is detected by the sensor and converted in to V,I signal through transducer. These signals are amplified and magnified by signal cond itioner generates the FRF cur ve and mode shapes .
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
20180323 electrospinning and polymer nanofibersTianyu Liu
The slides for a guest lecture of a graduate course (Chem 6564) offered by the Department of Chemistry, Virginia Polytechnic Institute and State University.
EXPERIMENTAL INVESTIGATION OF MECHANICAL AND DYNAMIC CHARACTERISTICS OF HYBRI...ijiert bestjournal
From decades,natural fibers in the form of reinforcements in polymer composites have been a test subject for scientists because of its growing familiarity wide range of application s. Banana (B) and S isal (S) fibers are in good potential as reinforcement is polymer composite. The hybridisation of short Banana and Sisal fibers produce s good properties compared to only Banana fiber. In this present work,an experimental study has been conducted to determine the effect of only banana fiber and effect of volume fraction namely B - S 20 - 20%,B - S 30 - 10% and B - S 10 - 30% on vibrational analysis par ameter s such as Natural frequency,damping ratio and mode shapes of Banana and Sisal fibers reinforced with epoxy resin Lapox L - 12 using FFT analyzer . The nodes created on the test specimen is hit by an impact hammer causes the vibration which is detected by the sensor and converted in to V,I signal through transducer. These signals are amplified and magnified by signal cond itioner generates the FRF cur ve and mode shapes .
Hairiness is characterized by the quantity of freely moving fibre ends or fibre loops projecting from a yarn or textile fabric (woven, knitted or non woven fabrics).
In term of measurement Hairiness corresponds to the total length of the protruding fibres in unit length of one centimeter.
20180323 electrospinning and polymer nanofibersTianyu Liu
The slides for a guest lecture of a graduate course (Chem 6564) offered by the Department of Chemistry, Virginia Polytechnic Institute and State University.
nanotechnology has entered the sphere of water treatment processes. Many different types of nanomaterial’s are being evaluated and also being used in water treatment process.
Desalination is a key market area. Vast majority of worlds water is salt water, and though technology has existed for years that enables the desalination of ocean water, it is often a very energy intensive procedure and therefore expensive
Nano Filtration In Water Supply SystemsAqeel Ahamad
Man is completely dependent on water.Hence pure water is essential for many purposes.Though till now many filtration techniques have been introduced so far, using of nano technology make as the purest form of water.
Nanofiltration is a relatively recent membrane filtration process used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening ( polyvalent cation removal) and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter.
Though this paper concentrates on function of nanofiltration,it also elaborates the applications,needs and dis advantages of it.
NANOFIBER SPINNING OF PAN AND PLA BLEND USING NEEDLELESS ELECTROSPINNING TECH...OUTR, Bhubaneswar
NANOFIBER SPINNING OF PAN AND PLA BLEND USING NEEDLELESS ELECTROSPINNING TECHNIQUE
INTRODUCTION, OBJECTIVES, MATERIALS & METHODS, RESULTS & DISCUSSION, CONCLUSION, REFERENCES
To explore the possibility of replacing hazardous DMF used during spinning with eco-friendly acetone.
To standardise the process parameters to obtain the nanofiber with least possible diameter.
To evaluate the pore size of the Nano fibrous mat prepared at standardised parameter.
To combine the properties of PAN and PLA polymers and prepare a PAN & PLA blend nanofiber.
Eco frendily dyeing and finishing on silk fabriceSAT Journals
Abstract Today in the world of eco-friendly textiles, it becomes very important to solve the water pollution problem. Most of the textiles effluent came from dyeing industries spoil the water source and carcinogenic dyes create skin diseases and environmental hazards. So the present study focuses on plasma treatment, dyeing and fragrance finishing using natural sources. Plasma treatment is increase the dye uptake and luster in the silk fabric without more water consumption. Plasma treatment stands for, energy efficient, water saving, and economic than classical textile finishing processes. Traditional textile wet process needs lots of water to reduce the water consumption plasma treatment is used for surface modification of silk fabric. Plasma is a dry process is done by gases. Onion skin is a good dye yielding and antimicrobial source. These kind of natural sources are best alternative for synthetic dyes because these dyes are nature friendly dyes. Fragrance finish is a process where the substrate is subjected to inclusion of fragrance or essential oil which gives effects such as sedation, hypogynies, curing hyper tension. A new branch of textiles called “Aromatherapy textiles”, involves the incorporation of these essential oils on the textiles substrate for daily use. Key words: Plasma treatment, Silk fabric, Natural dye, Fragrance finishing,
Lyocell microfibre fabrics were produced using rapier weaving machine, which is to be used as inner layer while developing the Multilayered Technical Tecxtiles. The lyocell microfibre fabric has been treated with plasma using low pressure Oxygen. Then the plasma treated and untreated fabrics were dyed using reactive dyes. The dyed lyocell fabrics of plasma treated and untreated were tested for the comfort properties such as Wickablity, Air Permeablilty and Water Vapour Permeablilty. The results of the study confirmed that there is a significant improvments in Wickablilty and Air permeablilty of plasma treated fabrics which are essential characteristics for inner layer of the Multilayered Technical Textiles. The significant improvements due to new porus in the treated fabrics allow more air to penterate and also to increase the Wickablilty. Where as the Water Vapour Permeablilty characteristics of the untreated fabric have better results than plasma treated fabrics due to new etching on the surface of the treated fabrics which retain more vapour than untreated fabrics. The Plasma treated lyocell fabric can be used as inner layer for the development of Multilayered Technical Textiles.
For decades, different types of fibers have provided numerous unique solutions in filtration applications. In filtration / filter aid applications fiber provides a protective layer to valuable equipments promoting improved throughput and clarity.
Polyacrylonitrile and polylactic acid blend nanofibre spinning using needlele...OUTR, Bhubaneswar
Polyacrylonitrile and polylactic acid blend nanofibre spinning using needleless electrospinning technique, Keywords, Introduction, Materials and Methods, Spinning Solution Preparation, PAN with DMF, PAN and PLA Blend with DMF, PAN and PLA Blend with DMF and Acetone, Electrospinning, Analysis of Fibre Surface Morphology, Pore Size Analysis, Results and Discussion, Effect of PAN Concentration on Fibre Diameter, Effect of Potential Difference between Electrodes on Fibre Diameter, Effect of Distance between Two Electrodes, Effect of Relative Humidity on Fibre Diameter, Effect of Blending of PLA with PAN and DMF on Fibre Quality, Effect of Acetone on Spinnability and Fibre Diameter of PAN/PLA Blend, Pore Size Analysis of Nanofibre Mat Spun at Standardised Parameters, Conclusion, References.
"This is a relevant text which shows how things have changed today and everything is interdisciplinary wherein just specific knowledge is incomplete. We all need to focus on diversification in all perspectives. It is extremely fascinating and interesting to realize that how the extreme seeming ends are actually interconnected." -Ashish Kapoor
Recyclability of Spray Coated Smooth Nanocellulose films as a potential susta...Kirubanandan Shanmugam
Synthetic packaging materials are neither reprocessable, renewable nor biodegradable barrier and also difficult to recycle into useful products. While cellulose-based packaging is widely known as a renewable, reprocessable, recyclable and biodegradable material it has limited air and water vapour barrier properties. Nanocellulose (NC) has the potential to become a renewable alternative to plastic packaging barrier layers but its recyclability has not been reported. This investigation is focused on the production of spray-coated nanocellulose (NC) films and its recyclability via dispersion in water and vacuum filtration to form sheets again. Physical properties such as barrier performance and strength of NC films have been evaluated pre- and post- recycling. The recycled films retained 80% of tensile strength and significant barrier performance although the H2O vapour permeability (WVP) approximately doubled, increasing to 9.83 x 10-11 g.m-1.s-1 Pa-1, providing comparable values with for most synthetic packaging. SEM micrographs reveal no fibre agglomeration at the micro level and no damage to the fibres during recycling. The retained strength and barrier properties and facile reprocessability of the spray coated NC film promises a sustainable and recyclable alternative to conventional packaging, providing a sustainable platform for packaging industries.
Tonal Innovation Center (TONIC) hosted the second annual International Musical Instruments Seminar in Joensuu, Finland on 14th September- 16th September 2011.
1. Design and development of composite nonwoven filter forDesign and development of composite nonwoven filter for
pre-filtration of textile effluents using nano technologypre-filtration of textile effluents using nano technologyUnder the guidance of
Dr.J.P.Singh & Dr. Devendra prasad
UPTTI Kanpur
&
Dr. Anurag Shrivastava
DMSRDE Kanpur
By
Vivek Kumar Sharma
M.Tech- Textile technology
Department of Textile Technology
Uttar Pradesh Textile Technology Institute
Kanpur
2. AbstractAbstract
• Textile industries represent an important environment
problem due to their water consumption and produced
large amount of waste water. In many regions of world
with water scarcity, this fact can be an argument to make
wastewater cleaning necessary.
• This project discusses a Cleaner approach for minimization of
waste particle in dyeing effluent.
• The removal of stuff by Composite filter { Nanofibre
(polyethersulfone) film spread over nonwoven needle punched
fabric (Polyester)} was evaluated for reactive dye. Results showed
that membrane treatment is a promising advanced treatment option
for pollution control for textile industry effluents
3. IntroductionIntroduction
For removing these types of metals and other particle textile industry use ETP
(effluent treatment plant). In this type of plant the removal of particle from the
water is done sufficiently. This type of plant runs with four stage of removing the
effluent. These are Preliminary, Primary, Secondary & tertiary treatment.
Pressure-driven membrane filtration processes such as microfiltration (MF), ultra
filtration (UF), nano filtration (NF), and reverse osmosis (RO) provide opportunities
for the textile industry to better water by separating its components based on size.
However, widespread adoption of some of these processes has yet to be realized due
to membrane fouling. Membrane fouling is the accumulation of soil, or foulant, on
the surface or within the pores of a membrane. Fouling prolongs processing times,
increases energy and cleaning costs, decreases separation efficiency, and, in severe
cases, may lead to irreversible clogging of the membrane.
So our aim to develop a composite filter for prefiltration of textile effluents. if the pre
filtration of textile effluent is good the other next process results will go even better.
4. Development of Composite MembraneDevelopment of Composite Membrane
• We all know that non woven fabric is mostly used for filtration process of water for
her messing structure.
• Applying the Nanofibre over it is give control the pore size and give even better
filtration results.
•PES was selected as the Nanofibre membrane material due to its high thermal and
chemical resistance also its appropriate mechanical properties.
5. Material & MethodMaterial & Method
1. Preparation of nonwoven material
2. Spreading of Nanofibre over Nonwoven
material
3. Preparation of wastewater
4. Filtration
6. Preparation of nonwoven materialPreparation of nonwoven material
In this project we manufacture nonwoven by regenerated
round shaped polyester fibre (staple length 51mm and
fineness 1.5 denier) by UPTTI lab model machine (model-
Trytex) with two different weight sample of 130 and 198 gsm.
Sr.
No.
Parameters Sample A
(20 gram fibre)
Each 3 Sample
Sample B
(30 gram fibre)
Each 3 Sample
1 Sample Size 10x25 inch 10x25 inch
2 Weight of sample 20 gm 30 gm
3 GSM of sample 130 195
4 Pore size 50-300 50-300
5 Thickness 2.1 mm (approx) 3.5 mm (approx)
Machine parameter
1 Feed mm /Stroke 10 10
2 Punches /min 35 35
7. Preparation of NanofibrePreparation of Nanofibre
• Polyethersulfone (PES) (Mw= 58000 and density of 1.37 g/cm3) was
from DMSRDE lab. As the sub layer of the membrane a technical
polyester non-woven was used. The chemical structure of PES and
DMF is shown in figure. The solvents N,Ndimethylformamide (DMF)
were obtained from DMSRDE lab.
Polyethersulfone (PES) N,Ndimethylformamide
Solution viscosity -
. PES (%) Viscosity (Pa s)
15 0.52
8. Electro spinning conditionsElectro spinning conditions
Sr. No. Parameter PES nanofibrous
Membrane
(first)
PES nanofibrous
Membrane
(Second)
PES nanofibrous
Membrane
(third)
1 PES Concentration 15wt% 15wt% 15wt%
2 Applied voltage 20 kV 20 kV 20 kV
3 Feed rate 25 micro lt/min 25 micro lt/min 25 micro lt/min
4 Spinning distance 25 cm 25 cm 25 cm
5 Collection time 2 h 3 h 5 h
6
outer diameter of the
injector
15 mm 15 mm 15 mm
9. No of sampleNo of sample
Preparing a waste water Sample with Medium shade Using Salt
Concentration 20g/l Nacl, 8g/l Na2CO3 & Dye 50 mg/Lit
• We prepared sample of both GSM nonwoven fabric with three different
time spreading. (total sample =6)
Sr. No. Sample no. Classification
1 S1 130 GSM + 2 Hour Spreading
2 S2 130 GSM + 3 Hour Spreading
3 S3 130 GSM + 5 Hour Spreading
4 S4 198 GSM + 2 Hour Spreading
5 S5 198 GSM + 3 Hour Spreading
6 S6 198 GSM + 5
Hour Spreading
10. UV RESULTSUV RESULTS
Company DMSRDE
[Detailed Information]
Creation date 11/3/2016 4:42 AM
Data array type Linear data array
Horizontal axis Wavelength [nm]
Vertical axis Abs
Start 800 nm
End 200 nm
Data interval 1 nm
Data points 601
[Measurement Information]
Instrument name spectrophotometer
Model name V-630
Serial No. B187161148
Accessory USE-753
Accessory S/NB187161148
Cell length 10 mm
Photometric mode Abs
Measurement range 800 - 200 nm
Data interval 1 nm
UV/Vis bandwidth 1.5 nm
Response Medium
Scan speed 200 nm/min
Change source at 340 nm
Light source D2/WI
Filter exchange Step
Correction Baseline
Parameters-
13. Comparison flux rate of different type of sample throughComparison flux rate of different type of sample through
dyeing waste water and fresh waterdyeing waste water and fresh water
14. ConclusionConclusion
1. Results Show that the ion and other particle concentration will decrease in
all filtered sample from main sample.
2. Result Show that the flux permeability value and permeate flux will
decrease simultaneously according to thickness of nonwoven fabric and
also Nanofibre.
3. The removal efficiency of composite sample is 75%. & we know the
Microfiltration cleaning efficiency is 70 %.
4. So if we use this filter for pre-filtration of microfiltration process. We
achieve the cleaning efficiency around 91% of textile effluent.
15. AcknowledgementAcknowledgement
• It gives me immense pleasure to express my deep sense of gratitude & whole hearted thanks
to my college authority & DMSRDE authority for giving me opportunity to work on this
project.
• I am thankful to Dr. D.B.Shakyawar (Director, U.P.T.T.I) & Dr. Anurag Shrivastava
Sc-“G” ( Add. Director & Head-Department of Technical Textile, DMSRDE) in this regard.
• I am immense grateful to Dr. J.P.Singh (Project Guide) Dr. K. Mukophadhyaya Sc-“F”-
(Head- Department of Nano materials DMSRDE) & Dr. Debmalya Roy Sc-“E”-
(Department of Nano materials DMSRDE) for his valuable guidance, generous advice, critical
observations & benevolent approach which all our work & exercise to achieve something
worthwhile & satisfactory from a technical point of view.
• I am also like to thank to all DMSRDE Lab Staff & weaving lab staff- UPTTI for their
immense support in the lab.
• Last but not the least we also acknowledge the direct indirect effort & support of all the
members of UPTTI & DMSRDE for their continuous co-operation during project duration &
making this learning experience a truly successful one