Bio-integrated ECOnomically sustainable AQUAponic Mushroom System (BIO-ECOAQUA)

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The aim of BIO-ECOAQUA project is to develop a sustainable, energy efficient and compact oyster mushroom aquaponic system in remote areas to supply oyster mushroom and fish.

The concept of aquaponic mushroom systems, that combines aquaculture and edible oyster mushrooms symbiotically, fits well within the circular economy, as it aims to re-use, recover and recycle nutrients, water and energy, introduces a strict differentiation between consumable and durable components and uses energy to fuel the economic cycle.

Fish species such as Nile Tilapia are very common, while oyster mushroom (Pleurotus pulmonarius) is considered among the popular and widely cultivated mushrooms. The mushroom aquaponic system will consist on a grow bed coupled to a fish tank and will be housed within the existing greenhouse of the Higher Institute of Applied Biological Sciences of Tunis (ISSBAT), Tunis, Tunisia.

The implemented system will be integrated with hybrid photovoltaic system (HPVs) placed on the top of the greenhouse to explore the feasibility of a self-powered test bed. For controlling operating parameters, spectra analyzer based sensor having gas and water probes will be mounted inside the greenhouse.

In BIO-ECOAQUA project, locally available agro-wastes like straw, palm wastes, wood chips, almond peel will be used as oyster mushroom grow media. Spent Mushroom Substrate (SMS) will be used as an organic fish feed by implementing circular economy process. BIO-ECOAQUA project paves the ground for the development of a sustainable and compact technology which will tackle the water-energy-food nexus and circular economy through a systematic perspective. It offers a leap in technology that offers means for overcoming problems of water scarcity and arid conditions.

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