Sweden, March 26 -- The European Investment Bank (EIB) is lending the City of Stockholm 5 billion Swedish kronor (around €470 million euro) to finance the city's largest environmental investment in decades. The project involves closing the Bromma treatment plant and routing all the city's wastewater to a significantly expanded and modernised treatment plant at Henriksdal.The key element of the investment is a new wastewater collection tunnel that will transport sewage from Bromma to Henriksdal. The plant there will be expanded using advanced membrane technology, making it possible to treat more water without increasing the floor area and with significantly better results.Once the upgrade is complete, nitrogen discharge into the Baltic...