Noise protection system: Bubble curtain

Jaeger Mare Solutions GmbH will provide you with a noise mitigation system tailored to your requirements. In addition to the proven conventional Big Bubble Curtain (BBC), we offer you two novel systems for reducing underwater noise.

Underwater jobs such as laying foundations or detonations of munition can cause substantial sound emissions. Particularly the construction of offshore wind turbines causes noise which can adversely affect sea dwellers. With its Big Bubble Curtain, Jaeger Mare Solutions contributes to the protection of marine animals during rammings of the heavy offshore foundations. For the benefit of the kind-protected porpoises, differently defined noise level limit values must be adhered to. The goal of Jaeger Mare Solutions is not merely the adherence to these values but a general minimization of sound emissions.

The Big Bubble Curtain

The Big Bubble Curtain is comprised of one or two hoses which are laid out in a ring around the source of noise. The perforated hoses are pressurised with compressed air – bubbles emerge from the sea-bed to the surface of the water which create a ring-shaped protective wall around the noisy construc-tion site. With the help of the bubble curtain the sound waves extensively spreading over the seabed are broken multiple times, decreasing the sound intensity and thus protecting the marine animals. After deployment, the hose system is retrieved and brought to the next construction site.

The Jaeger CBC

Our Conducted Bubble Curtain ensures less noise in the direct vicinity of the ramming point. Jaeger Mare Solutions is currently developing a flexible Conducted Bubble Curtain which is directly attached to the steel rod rammed into the seabed and which creates a dense net of air bubbles. This reduces the noise of the over 1000 required rams directly at the source while ramming the pile into the seabed.

The Jaeger BBC

With our new hose system, which is still under development, we can achieve the same noise mitiga-tion performance with substantially less pressure. For this reason, Jaeger Mare Solutions employs a technology developed for waste water treatment which has been tried and tested for 40 years at Jae-ger Umwelttechnik. With our innovative Big Bubble Curtain, we want to protect the marine animals, encourage the development of renewable energies, and reduce the costs for our customers. This is achieved with an improved bubble performance and the reduction of the required compressors.

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