{"id":22067,"date":"2025-11-18T12:48:04","date_gmt":"2025-11-18T12:48:04","guid":{"rendered":"https:\/\/mullundpartner.de\/?p=22067"},"modified":"2025-11-18T12:49:05","modified_gmt":"2025-11-18T12:49:05","slug":"gefahr-unter-wasser-kampfmittelraeumung-als-voraussetzung-fuer-die-sanierung-belasteter-gewaesser","status":"publish","type":"post","link":"https:\/\/mullundpartner.de\/en\/gefahr-unter-wasser-kampfmittelraeumung-als-voraussetzung-fuer-die-sanierung-belasteter-gewaesser\/","title":{"rendered":"Danger under water - Explosive ordnance clearance as a prerequisite for the remediation of contaminated waters"},"content":{"rendered":"

Invisible danger underground<\/strong><\/strong><\/p>\n\n\n\n

Decades after the end of the Second World War, an invisible threat still lies dormant at the bottom of many German waters: sunken bombs, grenades and ammunition remnants. These contaminated sites are often hidden beneath the sediments of the last 80 years - a latent danger for people, the environment and planned remediation measures. The safe recovery of these munitions is a technically complex and interdisciplinary task - and a mandatory prerequisite for any sustainable water remediation.<\/p>\n\n\n\n

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A project with depth: Explosive ordnance clearance as a first step<\/strong><\/strong><\/p>\n\n\n\n

A current project of the M&P Ingenieurgesellschaft - Member of the SIERA Alliance<\/strong> in Hanover exemplifies the challenges.
The contaminated sediment was to be removed from a rainwater retention basin in need of remediation. However, before the suction excavator could move in to remove the sediment, a thorough investigation of the water bed was required - the basin had already existed before the Second World War.<\/p>\n\n\n\n

With the help of state-of-the-art water sounding, a specialised company examined the water bed from the surface using a high-resolution 5-channel system. The aim was to identify suspicious structures in and under the sediment.<\/p>\n\n\n\n

The evaluation quickly confirmed that remediation was not possible without prior explosive ordnance clearance. In close co-operation between the internal specialist departments Explosive ordnance, nature conservation and water remediation<\/strong> M&P developed a comprehensive clearance concept including tender documents and an accompanying landscape conservation plan in accordance with the specifications of the lower nature conservation authority.<\/p>\n\n\n\n

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From suspicion to controlled demolition<\/strong><\/strong><\/p>\n\n\n\n

The clearance began with a salvage complex consisting of a 15 \u00d7 15 m pontoon with a hydraulic excavator and two groups of divers. In addition to small metal objects, larger, deeper-lying suspected objects were also discovered during the preliminary sounding.<\/p>\n\n\n\n

The inspection by divers confirmed the worst suspicions: it was a Five-centner bomb with intact long-term detonator<\/strong>.
The explosive ordnance disposal service and the fire brigade, as the hazard prevention authority, responded immediately - a restricted area was set up, emergency services were coordinated and, after the residents had been successfully evacuated, a controlled demolition was carried out on site.<\/p>\n\n\n

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A widespread problem - and a central task<\/strong><\/strong><\/p>\n\n\n\n

Such finds are not isolated cases, but reflect a widespread problem of urban waters. Explosive ordnance clearance is far more than a safety-relevant intermediate step<\/strong>Only when the explosive past has been eliminated can the future of the watercourse begin - through the removal of polluted sediments, the restoration of ecological and water management functions and the reclamation of valuable natural areas.<\/p>\n\n\n\n

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Conclusion: Security creates the future<\/strong><\/strong><\/p>\n\n\n\n

The experience from Hanover shows how essential interdisciplinary planning and technical precision are for the safe remediation of polluted water bodies.
With projects like this M&P Ingenieurgesellschaft - Member of the SIERA Alliance<\/strong> make an important contribution to a sustainable and safe approach to our environment.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Invisible danger underground Decades after the end of the Second World War, an invisible danger still lies dormant at the bottom of many German waters.<\/p>","protected":false},"author":3011,"featured_media":22070,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[20],"tags":[],"class_list":["post-22067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nachrichten"],"_links":{"self":[{"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/posts\/22067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/users\/3011"}],"replies":[{"embeddable":true,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/comments?post=22067"}],"version-history":[{"count":1,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/posts\/22067\/revisions"}],"predecessor-version":[{"id":22071,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/posts\/22067\/revisions\/22071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/media\/22070"}],"wp:attachment":[{"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/media?parent=22067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/categories?post=22067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mullundpartner.de\/en\/wp-json\/wp\/v2\/tags?post=22067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}