Present situation and prospect of anaerobic digestion to transform organic wastes to bio-natural gas
Journal Title: Energy Environmental Protection - Year 2023, Vol 37, Issue 1
Abstract
Anaerobic digestion, which could transform organic wastes to biological natural gas, emerged from the discovery of biogas. It is drawing mounting attention due to its pollution treatment and energy recovery. The realization and advancement of anaerobic digestion depends on the development of technology and basic theory. Therefore, this paper will describe current mainstream anaerobic digestion technologies through configurations and theories. Firstly, we summarize the current mainstream anaerobic digestion technologies, introduce their design and configuration, and discuss the internal improvement and transformation. The sludge-water separation distinguishes the first and second anaerobic digestion technologies while granular sludge develops the third anaerobic digestion technology. Secondly, we describe the anaerobic digestion theory, and explain its role in anaerobic digestion revolution and also provide some improvement strategies. The design and operation of anaerobic digestion technology are greatly improved by the understanding of anaerobic digestion theory and discovery of interspecific electron transfer. Then, we introduce some emerging technologies and theories which will strongly promote anaerobic digestion. Machine learning will help unravel the complex black box of anaerobic digestion while synthetic biology will redefine anaerobic digestion. Finally, we discuss the future anaerobic digestion technology. The anaerobic digestion will be more efficient, intelligent and customized. In the future, it will become a green platform to complete the social cycle of energy and substance.
Authors and Affiliations
WEN Hanquan|Department of Environmental Sciences and Engineering, University of Science and Technology of China, China, YU Hanqing*|Department of Environmental Sciences and Engineering, University of Science and Technology of China, China
Keywords
Related Articles
- EP ID EP737273
- DOI 10.20078/j.eep.20221204
- Views 88
- Downloads 0
Present situation and prospect of anaerobic digestion to transform organic wastes to bio-natural gas
Anaerobic digestion, which could transform organic wastes to biological natural gas, emerged from the discovery of biogas. It is drawing mounting attention due to its pollution treatment and energy recovery. The realizat...
Application and challenges of recycling waste salt in the ionic membrane-based Chlor-alkali industry
Under the guidance of China′s ecological civilization policy, while the utilization of industrial water has been improved, the total wastewater discharge still cannot be neglected. Therefore, zero liquid discharge (ZLD)...
Analysis of material flow and energy flow in collaborative pyrolysis of Chinese medicine residue
Pyrolysis is a mainstream technology for biomass energy utilization, but theoretical simulation, verification feedback on the coordinated pyrolysis process, material conversion rules, and energy efficiency characteristic...
Experimental study on hydrogen production from wastewater and activated carbon assisted water electrolysis
Hydrogen has many advantages, such as high calorific value, low carbon, wide application, etc, which is an important strategic choice for China to achieve the dual carbon goal. It is still necessary to continue exploring...
Research progress on methane combustion catalysts
Methane as the main component of natural gas, has been widely used in power plants, natural gas automobiles, and the synthesis of numerous compounds. However, the leakage and emission of methane can induce severe environ...