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Five Percent Wastewater Lowered Coal's Ignition Barrier

Moderate organic-cleaning-wastewater blends improved ignition kinetics, while heavier blends weakened combustion stability.

Published Updated Story ID: mp-2026-07-19-011
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Summary

Moderate organic-cleaning-wastewater blends improved ignition kinetics, while heavier blends weakened combustion stability.

Researchers mixed bituminous coal with one to 10 percent industrial organic cleaning wastewater and heated samples under controlled thermogravimetric conditions. One to five percent blends lowered ignition temperature at low heating rates, and five percent reduced modeled average activation energy from 131.68 to 115.92 kilojoules per mole. At 10 percent, moisture, ash, and diffusion resistance delayed burnout. The laboratory combustion study supplies engineering data, not a field-scale disposal approval or emissions assessment.

Why it matters

Moderate organic-cleaning-wastewater blends improved ignition kinetics, while heavier blends weakened combustion stability.

Limits and context

  • The laboratory combustion study supplies engineering data, not a field-scale disposal approval or emissions assessment.

Key claims

  1. Moderate organic-cleaning-wastewater blends improved ignition kinetics, while heavier blends weakened combustion stability.

    Qualification: The laboratory combustion study supplies engineering data, not a field-scale disposal approval or emissions assessment.

    Evidence: source-2026-07-19-011

Sources

  1. Chinese Academy of Sciences via Newswise: Cleaning wastewater co-combustionChinese Academy of Sciences via Newswise · secondary reporting

Corrections

No corrections have been recorded for this story.