Related Experiment Video
Updated: Sep 13, 2025

Evaluation of Integrated Anaerobic Digestion and Hydrothermal Carbonization for Bioenergy Production
Published on: June 15, 2014
Advances in anaerobic digestate management: functions and impacts of carbon and iron-based additives
Shuaishuai Ma1, Xiaona Yu2, Budi Mandra Harahap3
1Center of Biomass Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037 China; Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, China.
Abstract:
Anaerobic digestion (AD) has emerged as a core technology for renewable energy production and organic waste management, generating biogas with a significant volume of digestate. To optimize AD performance, various carbon- and iron-based additives have been widely employed in recent years. However, their effects on downstream digestate management remain underexplored. Therefore, this review examines how these additives influence digestate dewatering and subsequent utilization pathways, including agricultural application, recirculation, and thermal conversion. Prior to this, the review outlines the roles and mechanisms of commonly used additives in AD and discusses current strategies and potential benefits associated with additive recovery. By identifying existing knowledge gaps and emerging challenges, this review underscores the need for a more systematic assessment of additive impacts on digestate quality, economic viability, and environmental safety, supporting the development of more sustainable and circular AD systems.
Related Concept Videos
Environmental Applications of Microorganisms
Metabolism of Chemolithotrophs
Microbial Nutrition
Carbon-dioxide Fixation
Microbial Fermentation
Amino Acid Catabolism

