Advances in digital electronics delivered small and portable gadgets, changing human interface with technology. Demand for new small devices of Information and Telecommunication Technology (small-IT) that have a short lifespan, like smartphones and laptops, creates flows and accumulation of electronic resources. These include precious metals that show potential for Urban Mining and Circular Economy. To find out the extent of setting up an improved recycling, reuse and repair system, data collection was conducted through surveys, bin observations and social experiments. These methods enabled us to analyse stocks and flows, identify behavioural practices and map collection infrastructure. About 80% of domestic small-IT stocks are hibernated, meaning they could be directly reused or easily repaired. Results show four barriers that keep citizens from handing in their unused small-IT: Devices are kept as back-up, they contain sentimental value, citizens are suspicious of post-collection data confidentiality issues and there is a perceived high effort to recycle. Drivers to enhance circularity are: improving e-waste infrastructure, introducing economic incentives and raising awareness on environmental impacts of hibernated stocks. A more trustworthy and legitimate management system is expected to deliver safety and confidentiality of personal data and provide the quality that fits the expectations of citizens of a proper place to dispose of their valuable items.

中文翻译：

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实现小型 IT 循环经济的驱动因素和障碍：波尔图市的案例研究。

数字电子技术的进步带来了小型便携式设备，通过技术改变了人机界面。对智能手机和笔记本电脑等寿命较短的新型小型信息和电信技术（small-IT）设备的需求创造了电子资源的流动和积累。其中包括具有城市采矿和循环经济潜力的贵金属。为了了解建立改进的回收、再利用和修复系统的程度，通过调查、垃圾箱观察和社会实验进行了数据收集。这些方法使我们能够分析库存和流量、识别行为实践和地图收集基础设施。国内约80%的小型IT库存处于休眠状态，这意味着它们可以直接重复使用或易于修复。结果显示，存在四个阻碍公民上交未使用的小型 IT 的障碍：设备作为备份保留、它们包含情感价值、公民对收集后的数据机密性问题持怀疑态度以及人们认为回收工作量很大。加强循环利用的驱动因素包括：改善电子废物基础设施、引入经济激励措施以及提高对休眠库存环境影响的认识。一个更值得信赖和合法的管理系统有望提供个人数据的安全性和机密性，并提供符合公民期望的适当地点处置其贵重物品的质量。