Fertiliser production

Fertilisers produced from agricultural by-products are referred to as bio-based fertilisers. Globally, rock phosphate and potash reserves are being depleted. Nitrogen is heavily dependent on natural gas for its production via the Haber-Bosch process. Europe completely relies on importing P and K. With such a strain on these finite resources, there is market potential for mineral fertiliser alternatives. Bio-based fertilisers are a by-product from the farming industry, domestic sources and commercial industries such as dairy processing. Sources of bio-based fertilisers include animal manure, sewage sludge, food-industry waste, rural/urban green waste and forestry by-products. The types of bio-based fertilisers produced include compost, digestate, struvite, grass juice and ammonia nitrate/sulphate. These products have many benefits, including reduced transport costs, replacing synthetic fertilisers in areas characterised by nutrient deficiencies, additional income for farmers and retaining nutrients on the farm. The use of these bio-based fertilisers helps to close the nutrient cycle loop by recycling organic products and keeping these important resources in the bioeconomy.

Fertiliser production

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1 / 9

What is the chemical name of Struvite?

1. Calcium ammonium nitrate

2. Urea

3. Magnesium ammonium phosphate

2 / 9

What helps promote the formation of struvite crystals?

1. Adding calcium and increasing temperature

2. Adding Magnesium and raising Ph

3. Nothing is added

3 / 9

What are the benefits of the Struviute production process?

1. Closing the nutrient cycle loop and reducing GHG emissions

2. Reducing dependence on synthetic fertilisers and reducing farm costs

3. All of the above

4 / 9

What technologies does RENURE and Gas loop use to recover nitrogen?

1. Crystilisation reactors

2. Strip-scrubbing

3. Bio-Refining

5 / 9

What fertiliser do the RENURE trials produce?

1. Ammonium salts

2. Urea

3. Phosphorus

6 / 9

The Gas Loop system reduces overall emissions by how much?

1. 62%

2. 10%

3. 45%

7 / 9

What percentage of grass weight  is processed into grass juice to recover nutrients unused by traditional farming practices?

1. 10-20%

2. 40-60%

3. 75-80%

8 / 9

What is the fertiliser produced by Biorefinery Glas?

1. Ammonium Nitrate

2. Slurry

3. Grass whey

9 / 9

What is the protein content of the biomass produced by Grass2Algae??

1. 41%

2. 15%

3. 27%

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