Membrane technologies

We are a provider of technically individual high-quality products in a niche market. We are specialized in the production and distribution of membranes and the trade with membrane accessories. Our core competences lie in our own products and know-how in the field of membrane technology.

Membrane filtration is not only based on sound technical knowledge, but also on a great deal of experience in application technology. Especially in the field of plant design, piloting and cleaning, it is necessary to accompany the customer in an advisory capacity. We do this.

Membrane modules

Microfiltration modules made of PP are modules that consist entirely of PP (housing, membrane, composite). PP is a very resistant material which is used in special filtration tasks. The material is therefore particularly suitable for the filtration of strongly acidic and alkaline media (Case study "Filtration of pickling acid" (in german language only)).

Membrane 
Membrane materialPP
Cut off [µm]0,2
Membrane diameter [mm]5,5
Temperature, max. [°C]65
pH-range1-14
Material of housingPP
Water flux at 1 bar [l/m2/h]1.850
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ModuleMS 110MS 110MS 110
Product namePP 0255 P 4 CCPP 0255 P 6 CCPP 0255 P 8 CC
Membrane area [m2]11,52
Module length [mm]1.0001.5002.000
Module diameter [mm]110110110
Membrane tubes [piece]484848
Cross flow at 1 m/s [m3/h]
                    at 2 m/s [m3/h]
                    at 3 m/s [m3/h]
4
8
12
4
8
12
4
8
12
Connection feed side [mm]ø 138
Clamp
ø 138
Clamp
ø 138
Clamp
Connection permeate side [mm]R 2"
Screwed
R 2"
Screwed
R 2"
Screwed
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ModuleMS 200MS 200MS 200MS 200
Product namePP 0255 PR 4 FFPP 0255 P 4 FFPP 0255 PR 12PP 0255 P 12 FF
Membrane area [m2]44,589
Module length [mm]1.2601.2602.7102.710
Module diameter [mm]200200200200
Membrane tubes [piece]174199174199
Cross flow at 1 m/s [m3/h]
                    at 2 m/s [m3/h]
                    at 3 m/s [m3/h]
17
34
51
17
34
51
17
34
51
17
34
51
Connection feed side [mm]DN100DN100DN100DN100
Connection permeate side [mm]DN50
Flange
DN50
Flange
DN50
Flange
DN50
Flange
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ModuleMS 250MS 250MS 250
Product namePP 0255 P 12 CCPP 0255 P 12 FFPP 0255 P 12 VV
Membrane area [m2]161616
Module length [mm]3.0002.7103.000
Module diameter [mm]250250250
Membrane tubes [piece]324324324
Cross flow at 1 m/s [m3/h]
                    at 2 m/s [m3/h]
                    at 3 m/s [m3/h]
28
56
84
28
56
84
28
56
84
Connection feed side [mm]ø 273
Clamp
DN150
Flange
273
Victaulic
Connection permeate side [mm]ø 100
Clamp
DN65
Flange
73,1
Victaulic
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Tubular membrane filtration modules are modules with open flow channels.
There are different flow channel widths with a diameter of mostly 5.5 to 25 mm. The currently most common type has a membrane tube diameter of 8 or 10 mm. Tubular modules are manufactured as single tubes or in bundled configurations and are installed in housings. The membrane layer of the tube module is applied to a reinforced carrier material. The product to be filtered flows through the pipe module at a flow velocity that is as defined as possible. The permeate (filtrate) flows radially through the membrane and the support tube and reaches a permeate collection chamber from which it is discharged. The great advantage of the tube modules lies in their ability to achieve a high concentration without clogging, even with media with a high solids content. Tubular module systems do not require any costly pre-filtration, as is absolutely necessary for other systems with thinner duct cross-sections. Another main advantage of tubular module products is the possibility of good cleaning of the system.

Spiral modules basically belong to the category of thin channel modules, which offer a very large membrane surface in a very compact space. Spiral modules are used in food production, paint separation and waste water technology with a low proportion of suspended particles. In a spiral arrangement, several layers of supporting layer-reinforced flat membranes and spacers are wound around a central permeate tube in a sandwich-like manner. The process fluid enters the module at the front end and then flows into the free spaces formed by the spacers axially through the entire length of the module and leaves the module at the other end. The permeate flows through the membrane, collects in the permeate chamber and then flows spirally to the permeate collecting tube from where it is discharged. Spiral modules are available in various lengths, diameters and flow channel heights. Spiral module systems are very compact and save pump energy.

Application area of membrane technology

In the production of chemical and pharmaceutical products, separation processes play the most important role alongside the actual implementation.
Membrane technology ensures safe and economical compliance with the separation requirements of the pharmaceutical industry. From sterilization and depyrogenation of process water for fermentation, separation of enzymes and isolation of active ingredients from fermentation broths to final purification of the applicable end products.

The food industry has always appreciated the advantages of membrane technology. This technology is used with great success for the clarification of wine, vinegar and fruit juices. In addition, the dealcoholisation of beers is now carried out by dialysis using membranes. Gelatine, soft cheese, quark and whey proteins are now produced using membrane technologies. Efficient production processes for high-quality food require high-performance filters with a high quality standard and optimal economic orientation. Membrane technology has contributed significantly to this high level of technology and will always support this industry with innovative products.

Car bodies, automotive parts, household appliances or office furniture are nowadays primed by an electrophoretic coating method, the so-called e-coating. Of central importance for this technology are the paint bath care as well as the rinse water treatment by ultrafiltration. However, before these parts can be fed to the paint shop, they must be cleaned. Thus it belongs today to the state of the art in the bath care of rinsing baths to use membrane technology.

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Based on the unique stability of the membrane materials with highest selectivity and functional design of the membrane elements, membrane products can be separated under extreme process conditions. In addition to the chemical industry, which processes a large number of the most aggressive process fluids, the metalworking industry is increasingly resorting to membrane processes.
Not only rinsing water, but also contaminated acids and alkalis from chemical syntheses, galvanic processes or stainless steel pickling can be clarified reliably and economically and often recycled without problems.

Water management in the paper and textile manufacturing industry has long been the job of process engineers. The membrane technology enables intelligent products for the reduction of the enormous water demand. Starting with process water purification, through numerous recyclables and water recirculation systems, e.g. press water recirculation and coating colour recycling, to waste water purification. In all process steps, membrane products for the efficient performance of these purification stages can be found today in modern factories as state-of-the-art technology.

Our lives are increasingly being accompanied by modern electronic data processing. Electronic devices surround us in almost all situations. In order to further increase the performance of these products, it is of utmost importance to install powerful processors and circuits in the smallest possible space. Membrane products are available to this industry, which are used reliably for water treatment and waste water purification for the production of printed circuit boards and chips. Only the purest water without conductivity can be used in production and this is only possible with the aid of membranes.

Membrane separation processes have proven themselves in environmental protection and are becoming increasingly popular due to their versatile and reliable applicability. Membrane technology has proven itself both in municipal and industrial wastewater treatment processes. Membrane processes are only in rare cases optimally applicable as the only process step in the solution of practical separation tasks. Rather, intelligently selected process combinations often lead to economically and technically meaningful results.

The largest market for membrane applications is seen in the international markets for water supply (excursus: chapter 8) and waste water treatment.
The reasons for this lie in the scarcity of natural drinking water resources, the increase in the world’s population and the associated increase in the use of surface water (lakes, rivers, oceans), the composition of which places high demands on purification processes due to industrial pollution. But process water in drinking water quality is also an important resource for the manufacturing industry. No clean water, no clean or pure products.