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Ecocycle

Waste as a resource

Waste can contain both harmful and valuable materials. Separating waste saves energy and natural resources. The risk of spreading hazardous substances is reduced. The waste system in Stockholm Royal Seaport includes a waste disposal unit, vacuum waste collection system, recycling rooms, a mobile re-use station and a hazardous waste station.

The placement of the recycling room and waste-chute inlet makes it easier to separate waste. The vacuum waste collection system helps to reduce the amount of transport in the area and increase well-being. For the results, see pages 49-51, 61 and 63 in the Monitoring Report.

Resource-efficient water and wastewater treatment

Optimised systems for energy and resource flows from wastewater (food waste and blackwater) have been studied in the Vinnova-funded MACRO project. The aim of the project is to create circular systems. In 2017 the preliminary design of a source-separating system was initiated for Södra Värtan and Kolkajen. See page 31 in the Monitoring Report.

Hidden flows visualised with REFLOW

Stockholm Royal Seaport has developed its own eco-cycle model, REFLOW (reflow.stockholm.se), based on Hammarby Sjstads model. The model clarifies how the Citys resource usage interacts with local, regional and global flows of energy, water and materials. REFLOW visualises the Citys hidden flows. In 2017, a research project funded by the Swedish Environmental Protection Agency commenced, with the aim of developing a model to quantify physical resource flows in an urban district.

The challenge in constructing a building that meets all energy performance requirements, especially when the requirements are tougher than the applicable building standards, lies in never losing sight of energy-related issues throughout the entire process. One of the key factors behind Stockholm Royal Seaports success is the ongoing dialogue with property developers, which ensures systematic monitoring. The City believes that we can work together with the property developers towards an ambitious joint target. At this stage, we have no measured values for the development phases with more rigorous requirements, but our experience from previous development phases shows that this unique form of collaboration has generated positive results.

Örjan Lnngren, Climate Change and Energy Advisor,
Stockholm City Environment and Health Administration

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