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Synergistic effect of ozonation and ionizing radiation for PVA decomposition
Ozonation and ionizing radiation are both advanced oxidation processes（AOPs） without chemical addition and secondary pollution. Also, the two processes＇ efficiency is determined by different p H conditions, which creates more possibilities for their combination. Importantly,the combined process of ozonation and ionizing radiation could be suitable for treating wastewaters with extreme p H values, i.e., textile wastewater. To find synergistic effects, the combined process of ozonation and ionizing radiation mineralization was investigated for degradation of polyvinyl alcohol（PVA） at different p H levels. A synergistic effect was found at initial p H in the range 3.0–9.4. When the initial p H was 3.0, the combined process of ozonation and ionizing radiation gave a PVA mineralization degree of 17%. This was 2.7 times the sum achieved by the two individual processes, and factors of 2.1 and 1.7 were achieved at initial p H of7.0 and 9.4, respectively. The combined process of ozonation and ionizing radiation was demonstrated to be a feasible strategy for treatment of PVA-containing wastewater.
Synergistic effect of ozonation and ionizing radiation for PVA decomposition
Ozonation and ionizing radiation are both advanced oxidation processes（AOPs） without chemical addition and secondary pollution. Also, the two processes＇ efficiency is determined by different p H conditions, which creates more possibilities for their combination. Importantly,the combined process of ozonation and ionizing radiation could be suitable for treating wastewaters with extreme p H values, i.e., textile wastewater. To find synergistic effects, the combined process of ozonation and ionizing radiation mineralization was investigated for degradation of polyvinyl alcohol（PVA） at different p H levels. A synergistic effect was found at initial p H in the range 3.0–9.4. When the initial p H was 3.0, the combined process of ozonation and ionizing radiation gave a PVA mineralization degree of 17%. This was 2.7 times the sum achieved by the two individual processes, and factors of 2.1 and 1.7 were achieved at initial p H of7.0 and 9.4, respectively. The combined process of ozonation and ionizing radiation was demonstrated to be a feasible strategy for treatment of PVA-containing wastewater.
Synergistic effect of ozonation and ionizing radiation for PVA decomposition
2015
Article (Journal)
English
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