Technology for N&P recovery as microalgae based biofertilisers starting from wastewater with heterotrophic microalgae (ID:253)

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Input material
Wastewater and heterotrophic microalgae
Output product
Treated water and biofertiliser
Processing capacity
Wastewater treatment: ~ 400 m3 /y , Microalgae powder: ~ 400 kg /y
Technology Status
Advanced development stage
Keywords
microalgae
heterotrophic
wastewater
biofertiliser
renewable energy
Technology description

The LIFE ALGAECAN project proposes a sustainable treatment model of high loaded and salty effluents that combines cost-effective heterotrophic algae cultivation with spray drying of the collected microalgae to obtain a product of commercial interest as raw material for the production of biofertilisers, animal feed, etc.
 
The treatment system prototype is composed of three main steps: 1) a two-phase microalgae growing system, which consumes the organic matter and nutrients contained in the effluent; 2) a separation step to recover the clean water (that  will  comply  with  reuse  standards),  and;  3)  a  drying  step  to  recover  the  dry  microalgae  (sub-product  as biofertiliser or animal feed).
 
This system is placed in two containers with solar panels that provide energy to the whole system. In case that there is not enough solar radiation, this technology will be supported by energy from biomass.

Linked productMicroalgae based biofertilisers from wastewater by heterotrophic microalgae process, ID:255

Basic information

Vendor:
Country:
Spain
Technology main category:
Biological nutrient recovery: composting, anaerobic digestion, microalgae technology
Technology subcategory:
Microalgae/duckweed/insect/enzyme technology

Languages

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