Related Experiment Video
Updated: Oct 17, 2025

Development of Sulfidogenic Sludge from Marine Sediments and Trichloroethylene Reduction in an Upflow Anaerobic Sludge Blanket Reactor
Published on: October 15, 2015
Influence of Temperature on Characteristics of Particulate Matter and Ecological Risk Assessment of Heavy Metals
Binbin Li1, Haihong Fan1, Songxiong Ding2
1College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
Abstract:
The formation process of Particulate Matter (PM) during sludge pyrolysis at different temperatures (300-700 °C) and the ecological risks of heavy metals were studied. The results showed that the particulate matter is mainly condensed on the quartz film in a carbon-based organic matter when the pyrolysis temperature was between 200-500 °C in a volatilization process. Inorganic particles was found in the particulate matter when the temperature was raised to 500-700 °C in a decomposition stage. Heavy metals were enriched in particulate matter with increase in pyrolysis temperature. When the temperature reached 700 °C, the concentration of Pb and Cd in the particulate matter significantly increased. The ecological risk assessment showed that heavy metals in the sewage sludge had considerable ecological toxicity. When the pyrolysis temperature reached 700 °C, the ecological toxicity of those heavy metals enriched in the particulate matter decreased considerably.
Related Concept Videos
Factors Influencing Microbial Growth: Temperature
Atomic Spectroscopy: Effects of Temperature
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
Diversity of Archaea I
Effect of Temperature Change on Reaction Rate
Physical Methods for Controlling Microbial Growth: Temperature

