Related Experiment Video
Updated: Jun 4, 2025

Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
Published on: July 13, 2012
Dimensionality reduction of high-solid anaerobic digestion flow pattern: Flow velocity distribution model and control
Zhenni Pan1, Yuying Hu2, Tengfang Hu1
1School of Civil Engineering and Architecture, East China Jiao Tong University, Nanchang 330013, China.
Abstract:
High-solid anaerobic digestion (HSAD) can be used to treat organic waste. However, the operating stability is limited by the hydraulic conditions; therefore, regulation is essential. The flow field contains a large amount of information that cannot be directly regulated. Dimension reduction research in HSAD could simplify hydrodynamic regulation by removing redundant information from the flow field to reduce the dimensionality. However, to date, no relevant studies have been conducted. In this study, dimension reduction research was conducted to simplify the regulation of the hydraulic conditions of HSAD by constructing a mathematical model based on the simulation results. The HSAD flow velocity distribution model was first proposed, which features the mixing efficiency of the reactor. In addition, an HSAD flow control model with a fitting error below 10% was proposed. The controlled hydraulic enhancement strategy for HSAD in this study provides new insights into mixing performance.
Related Concept Videos
Dimensional Analysis
In fluid mechanics, dimensional...
Turbulent Flow: Problem Solving
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
Typical Model Studies
Rapidly Varying Flow
Laminar Flow: Problem Solving
General Characteristics of Pipe Flow I
The classification of fluid...

