Innovation procurement of land remediation
The Innovative Land Remediation project aims to identify, procure, and test methods and techniques for land remediation and preparation of former industrial land.
Stockholm Royal Seaport is built in a former industrial area that needs to be remediated before use. Soil in the Kolkajen phase of the project is contaminated with substances that are hazardous to health and the environment, and that need to be treated. One option is to excavate and transport soil and materials from the area to be treated elsewhere. However, this is extremely costly, with estimates ranging up to SEK 400 million. Therefore, other methods for remediating soil on site, so-called in-situ methods, were investigated.
Purpose and goal
The purpose of the project is to identify, procure, and test collection techniques and methods to treat polluted materials on site. The goal is to reduce the costs for treating polluted land.
Results and experiences
In 2015 an innovation competition was held to identify potentially interesting remediation methods. In 2016 and 2017, tests were carried out in Kolkajen with the injection of various products for biological degradation and chemical oxidation, as well as tests to purify soil. In addition, thermal treatment was tested in the laboratory. Several of these tests showed promising results, mainly chemical oxidation and biodegradation. In 2018, extended pilot tests will be conducted in Kolkajen to assess whether chemical oxidation can be applied at scale.
Project leader and participant
City of Stockholm Development Administration
Vinnova and own funding
Sofia Billersjö, Land Environment Specialist Stockholm Royal Seaport,
Stockholm City Development Administration
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