Advances in Circular Bioeconomy Technologies: From Agricultural Wastewater to Value-Added Resources

Environments

KinjalJ Shah¹  Yongjun Sun¹  Nidhi Mehta²  Yu-I Lin³  Shu-Yuan Pan³ 

[1] College of Urban Construction, Nanjing Tech University, 211816 Nanjing, China;Department of Biochemistry, College of Arts & Sciences, University of Washington, Seattle, WA 98195-3765, USA;Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 10617, Taiwan;

关键词: humus;    nutrients;    environmental benefits;    circularity;    reclaimed water;   

DOI  :  10.3390/environments8030020

来源: DOAJ

【 摘 要 】

This review systematically outlines the recent advances in the application of circular bioeconomy technologies for converting agricultural wastewater to value-added resources. The properties and applications of the value-added products from agricultural wastewater are first summarized. Various types of agricultural wastewater, such as piggery wastewater and digestate from anaerobic digestion, are focused on. Next, different types of circular technologies for recovery of humic substances (e.g., humin, humic acids and fulvic acids) and nutrients (e.g., nitrogen and phosphorus) from agricultural wastewater are reviewed and discussed. Advanced technologies, such as chemical precipitation, membrane separation and electrokinetic separation, are evaluated. The environmental benefits of the circular technologies compared to conventional wastewater treatment processes are also addressed. Lastly, the perspectives and prospects of the circular technologies for agricultural wastewater are provided.

【 授权许可】

Unknown