Turning harmful ocean algae into everyday products
CategoriesSustainable News

Turning harmful ocean algae into everyday products

Spotted: When water becomes enriched with minerals and nutrients, a process starts called eutrophication, where algae grow rapidly and accumulate, causing algal bloom, which can smell bad, block sunlight, and even release toxins. However, the plants also offer a sustainable, clean, and biological source of raw materials, ideal for many applications. They can be harvested and processed without affecting the environment, and Origin by Ocean is doing just that.  

The startup has found that marine overgrowth can be removed and converted into ecological, healthy, and oil-free ingredients for use in everyday consumer products. The company’s patented biorefinery technology, Nauvu, turns invasive and harmful algae and ecologically farmed seaweed into many products in one industrial process. The technology uses selective chemistry to extract valuable bio-based chemicals, which can be used to replace traditional high-carbon chemical ingredients in industries like food, cosmetics, hygiene, and textiles. To make the process as sustainable as possible, Origin by Ocean also recycles chemicals and water.  

In addition, the company’s algae harvesting platform can provide employment opportunities to coastal communities around the world, while clearing oceans of potentially toxic seaweed. Origin by Ocean employs individuals directly, from the algae farmers and harvesters to the feedstock producers. 

The startup recently raised €7.5 million in a seed funding round which will be used to grow operations and develop an industrial-scale algae refinement plant. 

Algae, while essential, can become a danger to our oceans, which is why Springwise has spotted so many innovations trying to use the plant and clean up our seas. One startup has developed bio-based plastics made from macroalgae as a friendly alternative to conventional plastics, and another is turning seaweed into sustainable packaging.

Written By: Anam Alam

Reference

Modular photobioreactors use algae to capture carbon
CategoriesSustainable News

Modular photobioreactors use algae to capture carbon

Spotted: Almost all industrial facilities emit CO2, and while there are options for capturing the carbon emitted by large plants, there are few options for small- and medium-sized facilities. Now, Danish startup Algiecel has developed a modular photobioreactor (PBR) that can capture CO2 and transform it into algae-based derivative products.

Algiecel’s PBR’s are highly compact and fit into standard 40-foot shipping containers. The PBRs capture CO2 from industrial point emissions using algae, with energy for photosynthesis coming from LED lighting, and the only waste streams being oxygen and process heat – which can be reused. The containers can also be easily scaled for use by almost any facility.

The microalgae grown in the PBR are rich in protein, omega-3, vitamins, and carotenoids and can be split into biomass and bio-oil. This makes it especially useful in products such as aquaculture feed and as a human food supplement. So, not only do the bioreactors prevent CO2 from reaching the atmosphere – they are also a source of new products.

Algiecel adds: “We can thus achieve constantly efficient production with increasing scale compared with competing solutions. The container-based plug and play structure also means a more flexible capex solution for clients.”

In 2022, Algiecel successfully operated a pilot plant and has recently raised kr.10 million (about €1.3 million) in funding to further optimise the technology and create its first full-scale demonstration unit.

Springwise has spotted other flexible carbon capture and storage solutions, such as a novel way to remove carbon from the air and reuse it, and a process that can retrofit HVAC units to remove CO2.

Written By: Lisa Magloff

Reference