Open AccessDegradation Kinetics of Humic acid in Aqueous Solution by Ozonation Treatment under Different Parameter Conditions
Author(s) -
Zafirah Mahyun,
Noor Fazliani Shoparwe,
Ahmad Zuhairi Abdullah,
Abdul Latif Ahmad,
M. F. Mohamad,
Abdul Hafidz Yusoff
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/596/1/012010
Subject(s) - degradation (telecommunications) , aqueous solution , ozone , humic acid , chemistry , kinetics , biodegradation , reaction rate constant , wastewater , nuclear chemistry , environmental chemistry , environmental engineering , organic chemistry , environmental science , telecommunications , fertilizer , physics , quantum mechanics , computer science
This study evaluated the kinetics of humic acid (HA) degradation in aqueous solution by ozonation process under different parameter conditions. The effect of initial HA concentration (5 to 100 mg/L), solution pH (2 – 12) and initial ozone doses (1.6– 4.9 mg/L) of HA degradation were evaluated through batch ozonation processes at ambient temperature for 2 hours. The HA degradation followed pseudo-first order kinetics where the rate constant changed based on these parameters effect. Results showed that, the HA degradation by ozonation process was more effective (98% degradation) at 20 mg/L initial HA concentration, initial pH 7 and 4.9 mg/L of ozone dose. These finding suggest that the ozonation process can be effectively used in wastewater treatment for improving the biodegradability of recalcitrant organic compounds.