Utilisation of Ulva rigida biomass in the Venice Lagoon (Italy): biotransformation in compost |
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Authors: | V Cuomo A Perretti I Palomba A Verde A Cuomo |
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Institution: | (1) Ecolmare R & D, Via delle Rose 50/a, 80063 Piano di Sorrento, Naples, Italy |
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Abstract: | In the Venice Lagoon (Italy), about 106 t (wet weight) of Ulva rigida biomass are produced annually as one of the major results of eutrophication. Harvests have been initiated to reduce negative
impacts of this biomass, however, due to the high costs of such effort, only 40 000 t yr-1 are currently being collected. At the moment, biotransformation into compost seems to be the only feasible technology for
utilising large quantities of Ulva biomass. We describe and discuss here a successful composting strategy together with the chemico-physical and microbiological
characteristics of the resultant composts. Our composting experiments were conducted at a scale of 20 t. The composting technology
utilises large proportions (70–90%) of Ulva biomass and results in a valuable, high-quality end product (compost and compost-based products). This process and the resulting
products represents a relatively simple way of utilising the Ulva biomass produced annually in the Venice Lagoon. |
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Keywords: | Ulva compost eutrophication seaweed utilisation ‘ green tides’ |
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