LANXESS reverse osmosis membrane elements completes test

  • Reverse osmosis membrane elements from LANXESS prove their value in Zellstoff Stendal water treatment
  • Application in Germany’s largest industrial water treatment plant
  • ASD feed spacers impress with a consistently high level of rejection
  • New element grades deliver energy savings of up to four percent

Reverse osmosis membrane elements from specialty chemicals company LANXESS have successfully completed a year-long practical test in Germany’s largest industrial water treatment plant. The new element grades with ASD feed spacers impressed Zellstoff Stendal GmbH based in Arneburg with their performance and consistently high level of rejection. Optimized for applications in brackish water, these Lewabrane-branded elements are characterized by very low energy consumption (LE = low energy) and high fouling resistance (FR = fouling-resistant).

“The outstanding results of our ASD products in benchmark tests with other manufacturers at one of the largest pulp manufacturers in Europe once again underline the extraordinary quality of our products,” said Alexander Scheffler, responsible for LANXESS’s global membrane business.

One year ago, Zellstoff Stendal launched a project to test LANXESS’s newly developed Lewabrane ASD range of membrane elements. This involved installing conventional reverse osmosis (RO) elements with a standard feed spacer and FR elements with LANXESS’s new ASD spacer in parallel in a single pressure vessel. The LANXESS spacers have a special “netting” that reduces biological growth and particle fouling by minimizing dead zones. The netting has an alternating strand design (ASD) of thin and thick filaments, which is what gives the spacer its name.

Frank Gorges, plant technician for water treatment at Zellstoff Stendal GmbH in Arneburg, was excited about the result: “We were very impressed by the performance of the ASD membrane elements from LANXESS. We test a lot of products in our plant and hardly any of them have been able to provide such consistently high results throughout an entire year.”

During the period of the project, the LANXESS RO elements demonstrated excellent performance and impressed with a consistently high level of rejection. This has a positive effect on the service life of the mixed bed and the amount of chemicals required for regenerating the ion exchangers.

After one year, the elements were removed and taken to the applications laboratory LANXESS operates in Bitterfeld for an “autopsy”. Compared to a standard element, there was hardly any increased pressure drop along the element when using the ASD grades. This indicates less blockage from fouling or biological growth.

Improved productivity 

In addition to the fouling-resistant Lewabrane B400 FR ASD grade tested by Zellstoff Stendal, LANXESS also offers Lewabrane B400 LE ASD, another premium product where the innovative feed spacers have improved productivity by four percent. For users, this means potential energy savings of approximately the same percentage.

Computational fluid dynamic (CFD) simulations had previously indicated that RO elements with ASD feed spacers would indeed be capable of achieving higher performance levels than standard grades. Furthermore, the tendency toward fouling in the element is reduced. “As we calculated, using the new elements reduces energy requirements while at the same time increasing service lives,” said Dr. Jens Lipnizki, head of Technical Marketing Membranes in the Liquid Purification Technologies (LPT) business unit at LANXESS.

LANXESS water treatment technologies for pulp manufacturing

Zellstoff Stendal, part of the American-Canadian Mercer International Group, is the largest and most cutting-edge manufacturer of NBSK (Northern Bleached Softwood Kraft) market pulp in Central Europe. With their outstanding properties – especially their high tensile strength and high degree of whiteness – these pulps are used, for example, for high-quality printing and copying paper, wallpaper bases, household paper such as paper tissues and kitchen roll, filter paper and a range of other specialist papers like silicone base paper.

Wood elements such as bark and lignin that are not used for pulp production are incinerated in boiler plants. A combined heat and power process in this case generates heat energy that is used as process steam and electricity. Located in the north of Saxony-Anhalt, the plant generates enough power to cover its own needs and also feeds a large part of the renewable energy generated into the public electricity grid.

More than 50,000 cubic meters of water are needed every day for pulp manufacturing in Arneburg, and this is treated using reverse osmosis and ion exchange resins. The Lewatit MonoPlus S 100 and Lewatit MonoPlus M 600 grades are used in the multistep process, while Lewatit MonoPlus SP 112 H and Lewatit MonoPlus MP 500 are used in the mixed bed.

Detailed information about products from the LPT business unit can be obtained online at

LANXESS is a leading specialty chemicals company with sales of EUR 7.7 billion in 2016 and about 19,200 employees in 25 countries. The company is currently represented at 75 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, additives, specialty chemicals and plastics. Through ARLANXEO, the joint venture with Saudi Aramco, LANXESS is also a leading supplier of synthetic rubber. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World) and FTSE4Good.

Automotive Filter Aftermarket to Exceed $4 Billion by 2021

Oil filters comprised the largest share of the North American automotive filter aftermarket

Aftermarket demand for automotive filters in North America is forecast to advance 2.4% per annum through 2021 to $4.1 billion. Sales will be boosted by:

  • Growth in the size of the region’s light vehicle park and the number of miles driven annually
  • High income levels in the US and Canada and rising income levels in Mexico
  • Ongoing consumer education efforts by manufacturers and automotive technicians regarding the replacement of cabin air filters
  • Increases in raw material and product prices
  • Relatively stringent environmental regulations in the US and Canada and the enactment and enforcement of stricter environmental controls in Mexico

Oil filters comprised the largest share of the North American automotive filter aftermarket in 2016, totaling $1.6 billion in sales and representing 44% of the market. These products hold a leading share of the market due to the frequency with which oil changes are performed (and the associated filters replaced) as a part of routine maintenance. These and other trends are presented in Automotive Aftermarket for Filters in North America, a new study from The Freedonia Group, a Cleveland-based industry research firm.

Engine air intake filters commanded the second largest share of regional aftermarket filter demand in that year, accounting for 31% of overall sales. This share of demand is down from a decade ago, reflecting product improvements that lengthen the useful lifespan of air intake filters.

More information about the study is available at Freedonia’s website.

About The Freedonia Group

The Freedonia Group is a leading international industrial research company publishing more than 100 studies annually. Since 1985, they have provided research to customers ranging in size from global conglomerates to one-person consulting firms. More than 90% of the industrial companies in the Fortune 500 use Freedonia Group research to help with their strategic planning. Additional Automotive & Transport studies can be purchased at, and

For more information contact:
Corinne Gangloff
Tel: 1-440-684-9600


GKD’s Porometric mesh named New Product of the Year at annual Advanced Filtration Technologies Conference

The American Filtration & Separations Society (AFS) named GKD-USA’s Porometric filtration mesh the 2016 New Product of the Year. The award was presented at the annual Advanced Filtration Technologies Conference on April 11 in Louisville, KY.

“We are thrilled and honored to be named the 2016 New Product of the Year,” said Peter Wirtz, general manager, GKD Solid Weave Business Unit. “The completely new Porometric mesh filter provides unprecedented advantages for efficient oil and gas exploration and water filtration.”

Porometic is GKD’s newest wire mesh developed using the proven GeoDict simulation software. This new type of mesh brings oil and gas exploration facilities more overall throughput at lower local pore velocities. For water and wastewater filtration facilities the mesh offers high permeability, low-pressure losses and a sharp particle retention rate.

“GKD is committed to bringing innovative woven metal technologies to the marketplace,” continued Wirtz. “We are proud to see our work in wire mesh acknowledged with such a prestigious award.”

The Advanced Filtration Technologies Conference was held in Louisville, KY from April 10-13 at the Galt House. The Global Filtration industry is projected to grow exponentially in the next five to ten years. To meet the ever increasing demand and regulations for clean and sustainable environment, it is necessary for the filtration industry to grow at an aggressive rate. The Advanced Filtration Technologies Conference addresses unmet market needs, advanced technologies in air, liquid and automotive filtration and the trends for future developments.

The American Filtration & Separations Society, a technical educational nonprofit organization started in 1987 to provide a forum for exchange of information among engineers, scientists, and technologists in all areas of the fluid/particle separation field. The AFS Society has predicated its existence on the dissemination of information, education, and the encouragement of research. In addition to education and professional advancements, members appreciate the opportunity to network and link with other industry professionals and peers. Many members feel that building these personal relationships contributes to their individual success.

GKD-USA, Inc., located in Cambridge, Md., is the North American division of Germany-based GKD – Gebr. Kufferath AG, providing creative technological leadership in woven wire mesh for industry and architecture. GKD-USA operates four autonomous business units: SOLIDWEAVE woven structures for industrial applications, WEAVE IN MOTION process belts for industrial applications, METALFABRICS metal mesh for architecture and design and MEDIAMESH® transparent media façades.

The technical weaving mill with its headquarters in Dueren, Germany, is the world’s leading producer of woven wire mesh made of metal, plastic wires and fibers. Wherever challenging demands are placed on metallic meshes, GKD is the company to turn to since 1925.

MOGUL Madaline Fills the Gap in Nonwoven Fiber Technologies

Nonwovens producer Mogul, recipient of two IDEA Entrepreneur awards, has once again introduced a new product with unique nonwoven properties.  The new product, Madaline®, fills the gap in nonwoven fiber technologies by having the strength of a spunbond together with microfilaments with size equal to or smaller than that in meltblown fabrics.

Madaline uses a patented bico technology of polyester (PET) / polyamide (PA) for producing continuous filaments with multiple fiber geometries. The filaments can be extruded in two different filament shapes: “Hybrid Mix” or “Multi-Lobal.” These continuous filaments are subjected to high pressure water jets, which split them into filaments less than 5 microns while also entangling these fibers and consolidating them into a dense web. This process allows Madaline to be made without binders and avoids holes associated with needle-punch products.

The resultant Madaline fabric provides very efficient filtration properties with the strength of a spunbond. The combination of filtration properties and high strength will allow the use of lower weights at equivalent efficiencies, with lower pressure drop, which means reduced energy consumption and improved sustainability.

Additionally, the Madaline process produces mixed fibers, comprising both large and very small fibers throughout the web. Such a mixture of fiber sizes results in filtration properties of longer life and lower pressure drop with equivalent air efficiency compared to structures in which all the very small fibers are in a single layer. Envisaged filtration applications of Madaline are for liquid filtration applications and as a replacement for micro-glass for high end filtration.

Madaline is produced up to 200 gsm at web widths of 3000 mm. The product offers spot-to-spot uniformity for heightened reliability; also its continuous filaments mean reduced fiber migration thereby adding strength and ensuring freedom from lint. Due to microfilaments Madaline breathes well, which makes for good moisture management i.e., absorbing and speed of drying. The strong structure provides a fabric capable of multiple washes.  It also exhibits very good thermal insulation, wind resistance and UV protection.

In addition to filtration, Madaline can be made to be very soft and drapable for a wide range of other applications including textile applications (replacing woven and knitted fabrics), clothing, scratch free wipes, etc. Madaline can be finished with processes such as dying, printing and stitching, similar to textile fabrics.

The Madaline process produces a Polyester/Polyamide fiber, which is sometimes also referred to as a polyester/nylon bicomponent fiber.

The raw materials in the Madaline product complies with the requirements of the Commission Regulation (EU) No 10/2011 of 14 January 2011 on plastic materials and articles intended to come into contact with food most recently amended by the Commission Regulation (EU) No 2016/1416 of 24 August 2016.

Berry Plastics’ Eugene Beck Joins Editorial Advisory Board

Eugene Beck has joined the International Filtration News’ editorial advisory board. Beck is Director Key Accounts Air Filtration for Berry

Eugene Beck

Plastics. He was most recently Senior Vice-President of Sales and Marketing for Filtration Group, responsible for domestic and international sales of high efficiency HVAC, turbine, and HEPA filtration products. He was previously General Manager at Moldan Nonwovens, and has extensive knowledge in nonwovens as related to HVAC air filtration. Areas of expertise include nanofiber composites, carded, meltblown, airlaid, spunbond, and carbon composite nonwoven air filter media and support scrims.

Beck began his 30 year career at American Air Filter, moved to National Sales Manager for Carpenter Company in Richmond, Va., and then started his own thermal bond nonwoven company manufacturing resin free bi-component fiber filter media. He has served as Associate Council President of NAFA hosting the annual technical seminar, and was a charter member of the CAFS program. He has a BSBM in Marketing from the University of Louisville.