Stena Adactum is the Stena Group’s investment company. As a long-term investor, the company’s mission is to build new businesses within Stena by acquiring and developing companies with good growth and profitability potential.

The earth’s population is increasing, and the proportion living in cities is rising. The global population currently stands at approx. 7 billion people, 50 percent of whom live in cities, compared with 30 percent out of a global population of approx. 2.5 billion in the 1950s. With the continuing trend towards urbanisation, it is expected that about 70 percent of the population will live in cities by 2050.

Sustainable solutions for growing cities

One of the most pressing problems in the rapidly growing cities is waste management. The amount of waste in cities is growing in intensity with wealth creation and urbanisation. At the same time, there is a growing need for sustainable waste collection and management to avoid negative impacts on the urban environment such as litter, vermin, noise and air pollution.

Envac, one of Stena Adactum’s subsidiaries, is a global leader in the development and sale of automated waste collection systems. Envac’s mission is to contribute to a better urban environment by leading the development of innovative, rational and sustainable waste collection systems and services.

Envac’s systems are based on storing waste underground and then transporting it by air along a pipe to the periphery of the residential area or quarter. In addition to resolving storage problems, it also reduces heavy waste transportation in the immediate area by approx. 90 percent.

Another of Envac products, Optibag, is based on households sorting their waste into differently coloured bags. Nothing needs to be changed in the waste infrastructure. Envac’s vacuum systems, conventional bins and refuse trucks, and other collection systems can all be used. The mixed bags are run through an optical sorting facility, where the waste bags are sorted by colour in a fully automated process. By using Optibag, municipalities can easily and cost-effectively implement sorting in several fractions without the need to convert buildings or acquire new vessels, trucks etc. The Optibag system, which has been implemented in about twenty cities in Sweden and Norway, is easy to use and highly appreciated by users.