Related Experiment Video
Updated: Jun 1, 2026
Assessment of Labile Organic Carbon in Soil Using Sequential Fumigation Incubation Procedures
Published on: October 29, 2016
[Impacts of different inoculation methods on fluorescence characteristics of DOM in solid waste composting]
Bo Yao1, Bei-dou Xi, Zi-min Wei
1School of Environment, Beijing Normal University, Beijing 100875, China. yaob327@163.com
Abstract:
In order to determine the best inoculation methods of compound microorganisms in solid waste composting, dissolved organic matter (DOM) during the process of composting under five different inoculation methods, including inoculation at the start, at the high-temperature phase, after the high-temperature phase, at the maturity phase and without inoculation, was tested through spectral analysis to investigate the time variations of DOM components in solid waste composting. Fluorescence spec-tra analysis of DOM indicated that the spectral characteristics of DOM in the composting piles of the five treatments exhibited a certain trend with composting time increasing, in which macromolecules with complex structures and humic substances gradually increased, and the heap materials became more and more stabilized. According to the comparisons of the fluorescence spectroscopy maps and related parameters, the treatment of inoculating compound microorganisms at the start time or after the high-temperature phase could notably speed up the humification process in solid waste composting.
Insights
Adding compound microorganisms at the start or after the high-temperature phase accelerates solid waste composting. This method enhances humification and stabilizes compost materials more effectively.
Area of Science:
- Environmental Science
- Microbiology
- Soil Science
Context:
- Solid waste composting is a crucial process for waste management and resource recovery.
- Optimizing microbial inoculation methods is key to efficient composting.
- Dissolved organic matter (DOM) is an indicator of composting progression and stability.
Purpose:
- To evaluate the impact of different compound microorganism inoculation timings on solid waste composting.
- To analyze the temporal variations of DOM components under various inoculation strategies using spectral analysis.
- To identify the most effective inoculation method for accelerating the humification process.
Summary:
- Five inoculation methods were tested: start, high-temperature phase, post-high-temperature, maturity phase, and no inoculation.
- Fluorescence spectra analysis revealed increasing macromolecules and humic substances over time, indicating stabilization.
- Inoculation at the start or post-high-temperature phase significantly enhanced humification.
Impact:
- The study identifies optimal inoculation timings for compound microorganisms in solid waste composting.
- Findings contribute to improving composting efficiency and the quality of the final compost product.
- Accelerated humification leads to faster stabilization and maturity of composted materials.
