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Updated: May 22, 2026

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
[Degradation kinetics of ozone oxidation on high concentration of humic substances]
Ke Zheng1, Shao-Qi Zhou, Mei-Mei Yang
1College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, China. easonzk@126.com
Abstract:
Humic substance oxidation (HS) degradation by ozone was kinetically investigated. The effects of O3 dosage, initial pH, temperature and initial concentration of HS were studied. Under the conditions of 3.46 g x h(-1) ozone dosage, 1 000 mg x L(-1) initial HS, 8.0 initial pH and 303 K temperature, the removal efficiencies of HS achieved 89.04% at 30 min. The empirical kinetic equation of ozonation degradation for landfill leachate under the conditions of 1.52-6.10 g x h(-1) ozone dosage, 250-1 000 mg x L(-1) initial HS, 2.0-10.0 initial pH, 283-323 K temperature fitted well with the experimental data (average relative error is 7.62%), with low activation energy E(a) = 1.43 x 10(4)J x mol(-1).
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