Experimental Study of Water Filtering Using Textiles as in Traditional Methods

2009 ◽  
Vol 15 ◽  
pp. 15-20 ◽  
Author(s):  
H. Saidani-Scott ◽  
Mike Tierney ◽  
F. Sánchez-Silva

This paper presents experimental results following a feasibility study into the uses of textiles for water filtration and purification. This project emanated from another project called ‘Aquapol’ [1], sponsored by the EU [2], which looked at reduction of infant diseases by the use of clean filtered water. Due to the high cost and maintenance of manufactured filters used in the Aquapol project, it was decided to look at the traditional methods used locally and try and design a water filter made from simple non expensive materials. Various textile materials have been tested for water filtration particulate dealing with the simulation of traditional materials used in Africa and Asia (Like Shesh in North Africa and Sari in India). Some ‘modern’ materials (like Denim, curtain shower) have also been tested to see if their filtration capability is better or worst than the traditional ones. The results obtained showed that textiles were very efficient in reducing particles size transportation and could be used for filtering and pre-filtering. However, storage conditions and basic hygiene are still the most important factors for disease reduction

2018 ◽  
Vol 69 (10) ◽  
pp. 2913-2915
Author(s):  
Daniela Jumanca ◽  
Anamaria Matichescu ◽  
Atena Galuscan ◽  
Laura Cristina Rusu ◽  
Cornelia Muntean

This experimental study aims to analyse the effectiveness of various materials used in demineralisation of dental enamel. This work aims to create a mechanical bond by filling the pegs with sealing material. In order to achieve this goal, five teeth were compared using different concentrations of orthophosphoric acid and exposure times. In this regard, five different tests were performed and the results were analysed using the SEM technique (scanning electron microscopy). These comparative analyses revealed that etching using 35% orthophosphoric acid for one minute and etching using Icon Etch for two minutes were the most effective.


ACS Omega ◽  
2021 ◽  
Author(s):  
Jianhua Fu ◽  
Dengke Wang ◽  
Xuelong Li ◽  
Zhiming Wang ◽  
Zhengjie Shang ◽  
...  

2021 ◽  
Vol 1038 ◽  
pp. 460-467
Author(s):  
Olga Skorodumova ◽  
Olena Tarakhno ◽  
Olena Chebotaryova ◽  
Dmitriy Saveliev ◽  
Fatih Mehmet Emen

The use of complex fire-retardant coatings based on ethyl silicate gel - diammonium hydrogen phosphate reduces the process of smoke formation during thermal exposure to treated tissue samples, which is promising for improving the fire safety of textile materials. The compositions are easy to obtain, they do not require specific processing conditions, do not contain toxic substances. This allows us to offer developed compositions for fire protection of textile materials used in facilities with a large number of people.


1988 ◽  
Vol 2 (10) ◽  
pp. 881-891 ◽  
Author(s):  
G Ferrari ◽  
E Tolle ◽  
M Dinale ◽  
M Scasso

Author(s):  
О. П. Кизимчук ◽  
С. І. Арабулі ◽  
В. І. Власенко

Analysis  of  existing  textile  materials  used  for  electromagnetic  radiation  shielding,  their systematization, and basic production methods are the main goals of this review. Methodology. The review of scientific literature and the systematization of the results in the field "textile materials for electromagnetic interference" are the main methods used for this research.


2016 ◽  
Vol 10 (3) ◽  
pp. 427-447 ◽  
Author(s):  
Marijke Welisch ◽  
Gustav Resch ◽  
André Ortner

Purpose The purpose of the paper is to provide estimation results for feasibility of renewable energy source (RES) deployment in Turkey, the Western Balkans and North Africa. From these results, the potential for cooperation in renewables production between the countries and the European Union (EU) is assessed and evaluated, in a mid- (2030) and long-term (up to 2040) perspective. Design/methodology/approach The authors focus on the quantitative assessments undertaken on the extent to which RES cooperation can create mutual benefits, identifying costs and benefits for both sides, but in particular with respect to RES target achievement (2020 and 2030) at EU level. The potentials for RES generation in Turkey, North Africa and the Western Balkans are calculated under different policy pathways, taking into account different levels of economic and non-economic barriers that could occur. Findings Overall, the authors found that increasing RES deployment in the three analysed regions and initiating or intensifying cooperation with EU28 Member States leads to mutual benefits. Concretely, these benefits become apparent in terms of the EU Member States importing renewable energy sources for electricity with a good resource quality and adding on to their targets for RES deployment. At the same time, substantial savings occur for the EU, in turn leading to income and investments in the cooperating regions. Originality/value The assessment underlying this paper is the first of its kind to the authors’ knowledge that opens up the geographical spread in comparison to merely assessing cooperation between Europe and the Middle East and North Africa. Furthermore, the multitude of policy parameters analysed provides detailed and robust insights concerning a broad variety of different possible scenarios.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
A.I.H. Fayed ◽  
Y.A. Abo El Amaim ◽  
Ossama Ramy ◽  
Doaa H. Elgohary

Purpose This paper aims to investigate the performance of four different textile materials used as an outer shell of the bulletproof vest. Design/methodology/approach In this paper, four different textile materials were used, polyurethane treatment was applied as a surface coating for the woven samples. Mechanical properties were conducted for all samples; scanning electron microscope and X-ray energy disperse spectroscopy were executed to show the surface morphology of samples and the chemical composition of the coating material. Findings One-way ANOVA was used to statistically analyse the results, which proved that all variables were highly significantly affected by using different textile materials, despite the stiffness variable being not significantly affected by textile materials. An overall evaluation was done using radar chart, demonstrated that Cordura material accomplished the best functional performance, using two types of calibres 7.62 × 54 mild steel core and 7.62 × 54 armour piercing incendiary; the common mechanism was localized burn because of the incendiary effect of the projectile in addition to tearing mechanism starting from inside because of penetration effect of the steel core. Originality/value This work was addressed to analyse the impact of using four different materials on its performance as the outer shell of bulletproof vest to achieve the desired degree of protection.


2019 ◽  
Vol 281 ◽  
pp. 02001 ◽  
Author(s):  
Layal Jradi ◽  
Bassel Seif El Dine ◽  
Jean-Claude Dupla ◽  
Jean Canou

This paper presents an experimental study that investigates the influence of the non-plastic fines on the initiation of instability of sands under cyclic loading. The materials used for this study and the experimental device are first presented, then the results of typical liquefaction tests for both loose and medium dense specimens are presented with emphasis on the exhibited behaviour. The results of a series of cyclic undrained tests that were done with the aid of a triaxial apparatus for different percentages of fines are also presented and analysed. The results reveal that the increase in the non-plastic fines content lead to an increase in the liquefaction resistance of sands.


2019 ◽  
Vol 279 ◽  
pp. 02010
Author(s):  
Lukáš Bosák ◽  
Milan Palko

Sustainability is currently an important part of the building industry. The development of new building constructions and the use of ecological materials is a very popular topic in this area. One example of organic material are natural fibres bio-composites. Bio-composite materials are currently used in the form of laminates mainly used in the sport and furniture industries. This article addresses their use in the building industry as the outer envelope of buildings. The article deals with the testing of the influence of UV radiation and moisture on the degradation of Bio-composites with recommendation of possible ways of their protection. In the next section, it deals with the design of composite wall panel with Bio-composite laminates on the top layer. This panel will contain mycelium as thermal insulation. The assumption of the use of this type of construction in the building industry is based on the possibility of replacing conventional materials used nowadays and reducing the environmental load by the building industry. The use of new types of eco-friendly building materials is in accordance with the EU strategy.


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