Steinhardt in on the planning of Shanghai’s mammoth deep tunnel reservoir 

In order to min­imise the risk of flood­ing and unwant­ed over­spill into receiv­ing waters dur­ing storm events, the city of Shang­hai is plan­ning a 15 km-long tun­nel with a diam­e­ter of 10 meters beneath the Riv­er Suzhou.

Spe­cial­ists from the Tech­ni­cal Uni­ver­si­ty of Mun­ster as well as col­leagues from GuHong Envi­ron­men­tal Engi­neer­ing, Steinhardt’s Chi­nese branch agents, are work­ing in the inter-dis­ci­pli­nary group of experts present­ly occu­pied with devel­op­ing sus­tain­able plans for mechan­i­cal pre-treat­ment of huge vol­umes of com­bined sewage before its tem­po­rary stor­age. Pre-treat­ment is nec­es­sary in order avoid odour prob­lems and sed­i­men­ta­tion which, in the long-term, have a neg­a­tive impact on stor­age vol­ume. A first 1.6 km long test stretch of the tun­nel is already under con­struc­tion. The test stretch will pro­vide con­crete data that will be col­lat­ed and applied in the real­i­sa­tion of the mam­moth project.