Out of sight and very intelligent

What mining prevented for decades has swiftly been taking shape since the 1990s: sewage water is being banished underground and at the same time the surface of the River Emscher and its side-arms renaturalised. It’s a mega-project, extending over some 400 kilometers of river bed.

Pride of place goes to the Emscher sewage channel between Dortmund and Dinslaken. In reinforced concrete pipes that are 1.60-2.80 m in diameter and at depth of 10-40 m, this elaborate system will enable the sewage to flow 51 km underground to reach the sewage plant from 2017 onwards. ZPP has played a pivotal role in the Emscher conversion project ever since 2002.

ZPP – consultancy, planning, verifying

First, in the run-up for the preparation of tenders and contract awards: for example, when devising the planning principles for the pipelines, when evaluating the corrosion protection systems or advising Emschergenossenschaft as the client on tunnel-building technology. And above second during implementation the ZPP specialists’ expert knowledge was crucial. Again and again, ZPP was a highly appreciated partner to the construction companies when it came to the complicated load-bearing plans, to planning the tunnel driving, developing special inline-pipe systems, calculating the support pressure and conducting verifications of the load-bearing and engineering structures.