This study aims to evaluate the Brazilian production of açaí, focusing on its waste generation and addressing mass and energy balances arising from its cultivation, extraction, processing, and waste disposal. A new technological route for açaíʼs waste management was introduced for bioenergy recovery based on the circular economy concept. In 2018, Brazil produced 1.7 million tons of açaí fruit for an income of 1.07 billion USD, and the associated waste generation (seeds) was estimated at 85%. Due to the high production of waste, an innovative approach was developed for a system boundary (conceptual line that divides the system), including the management of solid and liquid wastes through anaerobic digestion (AD). The results showed that, from 1 ton of açaí fruit fed into the facility for processing, 1.2 ton of solid waste and wastewater was generated. This waste was submitted to AD and produced 2.77 m³ of biogas, with a methane composition of 50%. The complete industrial process demands 25 kWh per ton of frozen pulp. The local energy produced by the biogas burning could be recycled and used by the process, establishing a circular energy economy for this sector. With the adoption of AD waste management, about 61% of the external electricity requirement for the açaí fruit processing can be replaced from the biogas produced. The adoption of this technology can be contribute to decarbonization. Furthermore, the implementation of AD could support the transition to a circular economy, with environmental, social, and economic benefits for local and regional sustainable development. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

中文翻译：

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巴西亚马逊地区的阿萨伊加工产生的废物管理和生物能源回收：循环经济的视角

这项研究旨在评估巴西acaaí的产量，重点在于其废物的产生，并解决其种植，提取，加工和废物处置产生的质量和能量平衡。在循环经济概念的基础上，引入了用于阿萨伊州废物管理的新技术路线，用于生物能源的回收。2018年，巴西生产了170万吨阿萨伊水果，收入10.7亿美元，相关废物产生量（种子）估计为85％。由于废物的大量产生，针对系统边界（划分系统的概念线）开发了一种创新方法，包括通过厌氧消化（AD）处理固体和液体废物。结果表明，从1吨的阿萨伊水果进料到加工设施中，就有1。产生了2吨固体废物和废水。该废物已提交公元，产生了2.77 m³种沼气，甲烷成分为50％。整个工业过程每吨冷冻纸浆需要25 kWh。沼气燃烧产生的本地能源可被回收利用，并通过该过程使用，从而为该部门建立了循环能源经济。通过采用AD废物管理，可从产生的沼气中替代约61％的阿萨果加工所需外部电力。这项技术的采用可以促进脱碳。此外，反倾销的实施可以支持向循环经济的过渡，为地方和区域可持续发展带来环境，社会和经济利益。©2020年化学工业协会和John Wiley＆Sons，Ltd