Ramboll selected as main consultant for Swedish wastewater treatment plant

Ramboll

September 02, 2019 – Syvab, a water utility company in Sweden’s Botkyrka Municipality, has selected Danish consulting engineering group Ramboll as main consultant for a new wastewater treatment plant with membrane bioreactor (MBR) technology.

Involving an investment of more than SEK1bn (£84m), the facility is intended to meet increasing wastewater volumes and stricter demands for nutrient reduction in treated water released to the Baltic Sea.

Countries surrounding the Baltic Sea have agreed to reduce their discharge of nutrients, mostly nitrogen and phosphorus, into the sea. The objective is to reduce eutrophication to the same level as the 1950s.

Syvab (The Regional Wastewater Treatment Company of Southwest Stockholm) is supporting the development by investing over SEK1bn in expanding and improving the wastewater treatment plant Himmerfjärdsverket.

The project, Nya Krav Himmerfjärdsverket (New Demands Himmerfjärdsverket), is one of the biggest projects of its kind in Sweden and includes the MBR, an efficient method for the removal of nutrient and solids.

Ramboll, as the main consultant for Syvab, has been preparing the project in collaboration with the utility since 2013 and is now designing the main biological treatment process.

Ramboll water division’s Annika Andersson Fräs said: “We are proud and happy to collaborate with Syvab on this important and technically attractive project.

“We look forward to improving Himmerfjärdsverket with state-of-art technology, and we fully share the ambition of creating a treatment icon that leads the way on an international scale.”

Himmerfjärdsverket currently treats the wastewater from 335,000 people in southwest Stockholm and this number is expected to increase to 433,000 by 2040.

Ramboll will also participate in a pre-study with Syvab on future treatment methods to reduce the discharge of micro-pollutants such as pharmaceutical residuals and microplastics.

The study, financed by the Swedish Environmental Protection Agency, will evaluate the efficiency of removing micro-pollutants through granulated activated carbon filters. It will also compare the environmental effects of this technology with the technology currently in use.

The pre-study report will be submitted to the Swedish EPA by the end of October 2019, while the new Himmerfjärdsverket will be operational in 2026.

Source:-http://www.worldconstructionnetwork.com/news/ramboll-selected-as-main-consultant-for-swedish-wastewater-treatment-plant/

 

 

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