Page 21 - Water_Controls_for_Healthcare

Point-of-use filters /

ANTI LEGIONELLA AND ALL GERM COMPONENT DISPOSAL
POINT-OF-USE
RANGE OF BIOFIL FILTERS STRATEGY

DELABIE offers a collection of BIOFIL water BIOFIL filters are classified as household waste. FILTERS
filtering devices: tap or wall-mounted shower The outer packaging is made from recycled cardboard
filters, shower head filters and spout filters which is also fully recyclable.
BIOFIL filters are designed to deliver bacteriologically
controlled water at the point-of-use.
These devices retain bacteria, including waterborne HOLLOW FIBRE, AN INNOVATIVE,
opportunistic pathogenic microorganisms such
as Legionella spp., Legionella pneumophila, TECHNICAL SOLUTION
Pseudomonas aeruginosa, non-tuberculous
Mycobacteria and other microorganisms, thanks Hollow fibre microfiltration
to a hollow fibre microfiltration membrane with a There are two main types of membrane used
porosity of 0.1 m nominal-rated. This microfiltration in point-of-use microfiltration devices: flat membrane Hollow fibre membrane
technology guarantees a bacteriological quality or hollow fibre membrane.
superior to that of the drinking water system without DELABIE chose to use the hollow fibre tubular Porosity < 0.1 micron
changing its chemical composition. membrane filtration technology.
BIOFIL filters are designed to secure water delivery
at the point-of-use.
They are recommended for managing and preventing THE PRINCIPLE OF HOLLOW
so-called healthcare associated infections (HCAIs). FIBRE FILTRATION

Hollow fibre filter
AREAS OF USE The BIOFIL filter is made up of a collection of
polyethylene hollow fibres grouped together into Microporous structure
Anti-Legionella and all-germ filters a unit. The fibres are extremely fine and flexible,
BIOFIL 2, 3 & 4-month point-of-use filters provide with an outer diameter of 0.6mm and a thickness < 0.1µm Bacteria
a physical barrier to reduce the risk of infection of several tens of microns.
associated with waterborne microorganisms. The fibres are hollow and shaped like a straw
The microfiltration membrane provides protection (tubular).
for immunosuppressed and vulnerable people.
Microporous structure
Filters are necessary for the care of The hollow fibre membranes have multiple pores
immunosuppressed patients in high risk areas such which vary in size from 0.01 - 0.1 micron.
as bone marrow and organ transplant units, oncology, Each membrane consists of several surfaces with
intensive care, neonatal wards and any other area microporous structures (micro slits). External/internal frontal filtration
providing care for this type of patient. Bacteria and any particles in suspension that
They also provide protection against the risk of are larger than 0.1 micron are trapped by these
Legionella and ensure compliance with regulations structures and are retained permanently on the Fibre Bacteria
for users of public buildings. external surface of the membrane.
External/Internal frontal filtration
NO CHEMICAL PRODUCTS DELABIE uses a frontal filtration system.
The water requiring treatment flows at right angles
to the filter surface and passes through
No chemical products are used during the the membrane due to the pressure difference
manufacture of our filters
on either side of the membrane.
The water flows from the external to the internal
MANUFACTURING PROCESS surface of the fibre.
IS MONITORED CONSTANTLY Bacteria and other microparticles that cannot pass Resin
through the gaps in the membrane structure are
retained on the outer surface and therefore do not
100% quality controlled penetrate the membrane.
The fibre quality and porosity of the finished product Large filtration area
are continuously monitored during the manufacturing Optimised bacteria storage
process for 100% of the fibres. Filtration area/storage of bacteria
The filter’s large hollow-fibre filtration surface area
makes it possible to filter a larger volume of water.
Consequently the storage capacity for bacteria and
impurities trapped inside the filter is much greater.

Point-of-use filters 19