Survey Dataset Supporting Blue Circular Economy Strategies for Bivalve Shell Waste Valorisation

Sammendrag

The circular economy advocates for a fundamental shift, focusing on the reuse, recycling, and valorization of waste to keep materials in use for as long as possible, thereby reducing the need for new resources and minimizing waste. In this context, the concept of the Blue Circular Economy emerges, emphasizing the preservation and sustainable use of marine and coastal resources. This paper presents and explains a dataset collected through a survey administered in two regions: Algarve-Portugal, and Oslo-Norway. The aim was to address the existing data gap on the production, consumption, and disposal of bivalve shells from aquaculture, as well as to assess stakeholders' perceptions of the reuse and circularity of products. In Portugal, data collection focused on analyzing the mollusk supply chain in the Algarve region and assessing the potential for oyster shell reuse within the country. In Norway, data collection targeted the construction industry and academia to understand their perspectives on the reuse of shells in building applications. The dataset comprises responses from 112 voluntary participants from different countries, categorized into three main groups. The questions addressed the quantity of bivalves produced and consumed, shell disposal practices, perceptions regarding the potential reuse of this waste, and the level of awareness of public policies promoting circular economy strategies. Upon completion of the survey, respondents were given the opportunity to receive a summary of the study findings by voluntarily providing their e-mail address in a designated field of the survey. The dataset integrates quantitative data from online and local face-to-face surveys across different groups. This dataset provides a valuable resource for stakeholders in the aquaculture and construction sectors seeking to explore the potential of this biomaterial to valorise waste into innovative products, as well as for public authorities aiming to support the transition towards a circular economy.

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DOI : doi.org/10.1016/j.dib.2026.112...
NVA : hdl.handle.net/11250/5531104