What is Biofilm

Biofilm exists from bacteria which attach themselves by a self-produced slime. They create a layer that is very hard to remove. On this layer, even more bacteria as well as micro-organisms and ferments can attach and develop.

A fully functioning biofilm is like a vivid fabric on the inside wall of pipes, storage tanks, water wells, etc . It is a complex cooperation of different types of micro-organisms which live each in their own favourable climate.

Even in the system of our drinking water, more than 99% of the bacteria are part of the biofilm attached on the inner side of the pipes.

Glycoalyx, also called Extracellular matrix or EPS ( Extra cellular polymer substance), can include 90 or even 95% of the bio mass of the biofilm, the rest are bacteria. As glycoalyx contains a lot of water, a surface which is covered by his biofilm as very slippery and gelatinous.

Afterwards the glycoalyx can capture other bacteria which will multiply and start building their own glycoalyx.

A biofilm can contain different bacteria that produce corrosive chemicals. Eg anaerobic sulfate reducing bacteria. These bacteria produces sulfuric acid which leads to corrosion of metal pipes. Also the so called iron oxidizing can cause corrosion of metal which results in expensive reparations of the leaking pipes.

Biofilm also narrows the diameter of pipes and more resistance and so less liquid can be pumped.                             The result is mostly a higher cost on energy.

Possible consequences of biofilm : 

 Development of pathogen

Endotoxins settle down in the mucosa

Development of mycotoxins

Damaged liver

Weakened immune system

Raise of costs on health

Oxidation of installations

Higher maintenance cost

NDV Systems

NDV Ultrasonic has it's own high-frequent ultrasonic devices that oppose the biofilm successfully.

We work with high-frequent Ultrasonic sounds. These are sound- frequencies above 22 kHz which is inaudible for human and animal. These are mechanical vibrations that occur by the conversion of electric or mechanical energy.

High-frequent Ultrasonic can be used to destroy the biofilm, by removal of the matrix for these bacteria.

The specific chosen frequencies are transmitted by the transducer on certain intervals. These vibrations demolish the vacuole of a protozoan's. So they die and other organisms can't attach them anymore. So the biofilm disappears.

By ultrasonic vibrations in a large frequency area, the cell walls of the bacteria ruptures, also the active part of an enzyme ( bacteria use this to construct their cell walls) is blocked.

By adjustment of the correct frequency, the bacteria is destroyed.

In contrast to the chemical treatments, an re-colonization can not take place because the bacteria are killed and so the matrix as well as the adhesive layer is eliminated simultaneously.

By adding chemicals, animals can have red mucous, bleedings or wounds in the beak and their esophagus.          Also the costs for those chemicals are periodical and can raise.

You can avoid all this by installing NDV High-frequent ultrasonic devices.

Our installations are very simple and a on-time cost, without further costs on maintenance.

In comparison with other techniques, NDV High Frequency Ultrasonic does not cause corrosion, and has no effect on the odor or taste of the water.

The equipment is permanently supplied with power. That is why it is important that the device has a low consumption. NDV Ultrasonic has a device with a remarkably low consumption (6W), this is an additional advantage for those who want the device to work on batteries or solar panels.

NDV High Frequency Ultrasonic has advantages, and no disadvantages, and the purchase always pays for itself in the long term.

So there is no reason why you should not install NDV Ultrasonic in your company or at home, 

it is healthy for humans and animals, and you experience a smaller ecological footprint. Profit for everyone!

Nick De Vos