Anjou Recherche Advanced Membrane Investigation Services

A.R.A.M.I.S Membrane Expertise Centre Anjou Recherche, the water R&D centre ofVeolia Environnement, has set up ARAMIS, the “membrane expertise centre of excellence”, dedicated to membrane technologies and applications such as:>production of drinking, process and ultra-pure water,>municipal and industrial wastewatertreatment,>desalination…

ARAMIS is made up of experts from different fields such as microbiology, water sciences, membrane processes andchemical engineering.

Its overall objectives are to: >evaluate membrane performance:rejection rates, hydraulic and mechanicalproperties;>define optimal operating conditions toprevent membrane fouling, reduce energyconsumption and water losses…

ARAMISARAMIS has developed a uniquemembrane expertise in order to meet customer requirements.

This knowledge base is built upon:

>the experience gained from operatingnumerous membrane plants, >complete independence from membrane manufacturers.

A range of tests are employed, which results in:>a precise membrane characterisation,specifically focused on new commercial membranes;>detailed autopsies being performed onall types of membrane (micro, ultra, nanofiltration and reverse osmosis) in order to optimise operating conditions.

UF MEMBRANES TECHNOLOGIES

AQUASOURCE20, avenue Didier Daurat

31400 TOULOUSE - FrancePh: 00 33 5 61 36 30 36

www.aquasource-membrane.com

UF MembranesUF UnitsEngineering support

DESALINATION AND WATER TREATMENT

Science and Engineeringwww.deswater.comDesalination PublicationsInternational Science Services

Objectives

desalting and waste-water reclamation.

-vancing and changing. It is often presented at conferences attended

Desalination.

Desalination and Water Treatment

Impact Factor Desalination and Water Treatment Web of Science, SCI and Current Contents so that it will get an impact factor.

Citations: . Find papers to cite.

Editorial Board: dwt@deswater.com.

Peer Review:

Copyright

Electronic Submission: using an online manuscript

Online Desalination Directory (www.desline.com)Desalination Directory Directory

DesalinationDesalination and Water Treatment Directory.

Abstracting: Desalination and Water Treatment

Contact: Editorial:

dwt@deswater.com www.deswater.com

Subscriptions/Advertisements:

contact@osc-edition.com

Every organ in our body has a particular function. The kidneys, for example, perform the critical task of purifying our blood. If our kidneys fail, there is no simple solution. The best treatment is dialysis, i.e. artificial purification of the blood. Used in conjunction with a number of other remedies, it aims to restore everyday quality of life for patients.

This is why we have brought together our expertise in the various aspects of dialysis and constantly strive to optimise our products through innovation. Around 1,100 patents and associated applications bear testimony to the strength of our innovation and this is undoubtedly one of the reasons why we are the global market leader in dialysis. If you would like to know more: www.fmc-ag.com

1,100 patents.

Because there is no simple solution to kidney failure.

Up to 15,000 Fresenius Polysulfone® hollow fibres – each with a wall thickness of just 0.04 mm – in every Fresenius Medical Care haemodialysis filter ensure that patients’ blood is purified and their quality of life enhanced.

Heat WavesThe unique Carbolite MRF 16/22employs CMAT Microwave AssistTechnology to combine radiantheating & direct microwaveheating of samples.

Reachingtemperatures of up to 1600°C under fullyflexibleprogrammablecontrol.

CarboliteParsons Lane Hope Hope Valley S33 6RB United KingdomTel: +44 (0)1433 620011 Email: info@carbolite.comWeb: www.carbolite.com

α β

γL. Fernández, M. Sánchez, A. Tena, L. Palacio, A.E. Lozano, A. Hernández, P. Prádanos

γ

�

β

2

β

ρ

γ

ππ

α β °α β

°

°

φ

°°

φ

≈Δ

γ

δ

Δ

δ

≈

D. Losic, M. Lillo, D. Losic Jnr.,

[ ]

β

μ μ

⎥⎦

⎤⎢⎣

⎡⋅=

κ

αα β

μ

μ

≈ ≈

β

β

β

α β

ε δ

Ε Ε

Ε Ε

μ

°

⋅+−

=

μ

μ

++ →←

×+×

×=

μ

°

°

°

μ

δ δ δ

⋅

⋅

⋅

°

°

α

α

α

α

∼

θ

μ

μ

μ

μ

τ

τ

τ

μ

μ

μ

β

φ

φ

( )( ) π

π

= ∞

=

⎡ ⎤⎛ ⎞+⎢ ⎥⎜ ⎟= − −⎜ ⎟⎢ ⎥+ ⎝ ⎠⎣ ⎦

∑

®

μ

α α

α α

γγ

γ

γ

γ

α

μμ

γγ

γ

μ

μ

μ

4

≤ ≤

μ × μ

�

Δ ϕ

γ

α

≤ ν ≤ΔΦ ≤ ≤

ν [ [α ν α ν [ ]

ΔΦΔΦ ΔΦ ΔΦ ΔΦ ΔΦ

[

γ

°

Θ

Θ,

( )−=

→ →→ →

−

set-up was thus developed for characterizing the sorption properties of barrier polymer materials in contact withmodel fuel mixtures [1,2].

[1] R. Clément, C. Kanaan, B. Brulé, H. Lenda, P. Lochon, A. Jonquières, Journal of Membrane Science 302 (2007) 95-101.[2] A. Jonquières, R. Clément, C. Kanaan, B. Brulé, H. Lenda, P. Lochon, "New developments in the measurement of multi-component sorption in barrier polymer materials : a key step towards the modelling of fuel tank permeability", invited KeynoteLecture, International Congress on Membranes and Membrane Processes, ICOM 2008, July 12-18, 2008, Honolulu, Hawaii,USA.[3] M. Nulman, A. Olejnik, M. Samus, E. Fead, and G. Rossi, Society of Automotive Engineers, Special Publication, SP-1365(1998) 41-48.

Δ

=∇

ΔΔ

ΔΔ

=

®

®

γ

μ μ

ε

Δ

Δ Δ ε εε

Phosphoric acid is the second produced mineral acid in the world. Wet process is the most used for its less expansive cost.Unfortunately, the acid is obtained with contaminant traces which are a bottleneck for some uses. Metal ions such as, Al, Fe,Cr, V, Cu... are uptaken with more or less specific purification steps. Nanofiltration, NF, is a promising alternative way forselective separation based on charge difference. Retention of contaminants in raw phosphoric acid and model solutions werecompared for evaluation of the efficiency of the membrane step and the relevant mode of separation.The first drawback of NF membrane was the stability in concentrated phosphoric acid. Although recommended in dilute acid,only, the following membranes MP34 (Koch, 300 g mol-1 MWCO) and 2 PES-based membranes (Nadir, 300 and 1000 g mol-1

MWCO, respectively) were used. Raw 5.5M phosphoric acid solution proceeded from wet process was used for NF runs. Retentions of metal ions with low cut-off 300 g mol-1 membranes were significantly better than very poor performances of 1000 g mol-1 membrane. Membranepermeation fluxes were too low for a competitive and sustainable step production. Combinations of both satisfactory retentionsand fluxes were achieved with a 1000 g mol-1 membrane through the use of additive in raw acid; the polymer additive targetswere enhanced retentions without severe flux drop.

μ μ

μ

δ δ

δδ

δ

δ

δδ

δ

δ δδ

σ

Comparison of experimental and model diafiltration data(membrane Desal 5 DK)

β

μ

> >

Δ

υ

− −

−

−−

−

δδ δδ δ

θ ε

( )( ) ( )( ) ⎥

⎦

⎤⎢⎣

⎡

−+−−+=

ΔΔ

θθεθθ

ττ

�

Δ

°

α β

α β

μ

�

μ

μ

Polyethersulfone/copolymer μ

( ) βα ρ

β

−−

⎫− = − ⎪ ⇒ = −⎬⎪= ⎭

α

μ

°

°°

°°

°

� �

�

��

Figure 2. Proton permselectivity, ,as a function of polyanion content, C

pa, in PEM.

Cross-linker concentration, CGA

:

μ

/ κ Ω

κΩ

> >

�

− −

°

μμ

μ

α

ββ

β

μ

≈

⋅ ⋅

2

�

�

μ

τ

Δ

ΔΔ

ϑ≥

αα

β β α

μ

Δ

Δ

μ

ββ

β

β

β

β

μ

μ

β

™

α− −

Votre distributeur...

...pour tous les produits du laboratoire

Des applications pour la

:

http://fr.vwr.com

WATER TREATMENT AND MODIFICATIONWe are well aware of a signifi cant importance of water for the life on Earth as well as the constantly increasing demands for its consumption, quality and environmental friendly processing in industry. We develop, design and deliver membrane technologies for treatment and desalination of water, offering alternative solution for industry and public distribution networks in the areas suffering from a lack of suitable water sources or allowing treatment and recycling of industrial waste water.

water desalination- treatment of underground and surface sources of drinkable water - recycling and treatment of industrial waste water- fi nal treatment of pre-treated waste water-

SPECIAL APPLICATIONSSpecial applications prove versatility of use of ion-exchange membranes Ralex with high expertness of our R&D staff and technologists looking for specifi c solutions. The result is utilization of our membrane technologies in purifi cation processes in technologically and hygienically demanding production of biotechnological preparations for pharmaceutical industry, production of food supplements, in separation processes of chemical industry or in the sphere of galvanization.

pharmaceutical industry- purifi cation of organic substances- separation of inorganic and organic solutions- regeneration and recycling of galvanic baths-

FOOD PROCESSING INDUSTRYOur priority are the spheres of dairy-farming and brewing production. With a help of the membrane technologies it is possible to achieve up to 90 % of demineralization of milk whey, as yet the underutilized waste product of cheese, casein and cottage cheese production. Demineralized milk whey may be used for production of traditional milk products, nutrition for babies, lactose or whey protein concentrates (WPC). We have also built a strong position in brewing industry with treatment of water for beer production. A unique taste of the Pilsen beer is the best reference of quality and professionalism of our services.

milk whey demineralization- milk whey acidity control- treatment of water used for beer production-

E-COATA method of cataphoretic paint coating belongs amongst the most advanced technologies of metal surface fi nish. Our tubular and desk electrophoretic boxes – because of their durability, easy operation and especially suitable mechanical and electrochemical parameters of ion-exchange membranes Ralex – have been proving good in paint shops of world-class automotive manufacturers, especially because of their capacity to satisfy even the most demanding requirements on anti-corrosive resistance of car bodies and metal parts.

automotive industry- agricultural equipment- production of radiators- consumer industry-

MEGA a.s. is a company providing fi rst-class technology and complex services in fi elds of water treatment, material surface fi nishing and ecology.

LEADER IN ELECTRO-MEMBRANE PROCESSES WITH OWN MEMBRANE PRODUCTION

MEGA a.s. | Division of Membrane ProcessesPod Vinici 87, 471 27 Straz pod Ralskem, Czech Republic | Tel: +420 487 888 300, Fax: +420 487 888 302 | E-mail: sales@mega.cz | www.mega.cz