Anaerobic digestate management, environmental impacts, and techno-economic challenges

被引：0

作者：

Lamolinara, Barbara ^{[1
]}

Pérez-Martínez, Amaury ^{[2
]}

Guardado-Yordi, Estela ^{[2
]}

Guillén Fiallos, Christian ^{[2
]}

Diéguez-Santana, Karel ^{[2
]}

Ruiz-Mercado, Gerardo J. ^{[3
,4
]}

机构：

[1] Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Rua de Portugal – Zona Industrial, Marinha Grande,2430-028, Portugal

[2] Universidad Estatal Amazónica, km. 2. 1/2 vía Puyo a Tena (Paso Lateral), Puyo, Pastaza,160150, Ecuador

[3] U.S. Environmental Protection Agency, Office of Research and Development, 26 W. Martin L. King Dr. Cincinnati, OH,45268, United States

[4] Chemical Engineering Graduate Program, University of Atlántico, Puerto Colombia,080007, Colombia

来源：

Waste Management | 2022年 / 140卷

关键词：

Feedstocks - Eutrophication - Quality assurance - Economic and social effects - Nutrients - Pollution - Fertilizers - Economics;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Digestate is a nutrient-rich by-product from organic waste anaerobic digestion but can contribute to nutrient pollution without comprehensive management strategies. Some nutrient pollution impacts include harmful algal blooms, hypoxia, and eutrophication. This contribution explores current productive uses of digestate by analyzing its feedstocks, processing technologies, economics, product quality, impurities, incentive policies, and regulations. The analyzed studies found that feedstock, processing technology, and process operating conditions highly influence the digestate product characteristics. Also, incentive policies and regulations for managing organic waste by anaerobic digestion and producing digestate as a valuable product promote economic benefits. However, there are not many governmental and industry-led quality assurance certification systems for supporting commercializing digestate products. The sustainable and safe use of digestate in different applications needs further development of technologies and processes. Also, incentives for digestate use, quality regulation, and social awareness are essential to promote digestate product commercialization as part of the organic waste circular economy paradigm. Therefore, future studies about circular business models and standardized international regulations for digestate products are needed. © 2022

引用

页码：14 / 30