MICRODYN-NADIR announces self-healing mechanism for the BIO-CEL® sheet

09 December 2013

MICRODYN-NADIR GmbH has announced that the unique BIO-CEL® sheet which represents the core part of its BIO-CEL® MBR module now has a self-healing mechanism. Due to its sandwich-like and self-supporting structure, the membrane ‘heals’ itself even though it might be damaged considerably (deep scratches, cut edge etc) and closes any scratch or cut immediately.

When talking about the operation of waste water treatment plants using MBR technology, factors like energy savings, reduction of the chemical demand or minimisation of the total costs of a plant are of major interest.

Besides these, one other criterion is becoming increasingly important. Membranes built into submerged modules and installed in a WWTP have to be of the highest quality in order to ensure, amongst other things, compliance with international water standards when looking at effluent quality and turbidity.

A damaged membrane is one of the worst things that can happen to an operator of a waste water treatment plant and respectively to the manufacturer of the membrane module. Screwdrivers or other tools falling into the filtration chamber of a plant, damaging the membranes severely, are not a rare event.

Several tests have proven that, even under worst case conditions, such as very low MLSS concentrations and immense damage to the sheet, the BIO-CEL® module offers turbidity values which are compliant with existing international regulations for water reuse.

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Banner image: full treatment plant for pharmaceutical wastewater in Taizhou, Linhai Park, Zhejiang Province, China, including Shanghai MEGAVISION  flat sheet UF membrane modules in two MBR units. Image courtesy of VALORSABIO, Lda.

Image credits:

– Image for our Chinese largest plants 全球最大的MBR项目 homepage link: Image supplied by Apex Environmental
– Image for our Consultants and Contractors homepage link: Image supplied by Ovivo USA, LLC.

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