WENGBao.Micro-nano Bubble O3/UV/H2O2 for Synergistic Treatment of Organophosphorus Biochemical Tailwater[J].China Water & Wastewater,2026,42(9):101-107.
Micro-nano Bubble O3/UV/H2O2 for Synergistic Treatment of Organophosphorus Biochemical Tailwater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第42卷
Number:
第9期
Page:
101-107
Column:
Date of publication:
2026-05-01
- Keywords:
- micro-nano bubble O3; UV; H2O2; organophosphorus biochemical tailwater; response surface methodology
- Abstract:
- In view of the poor biodegradability of organophosphorus pesticide wastewater and the difficulty for its biochemical tailwater to meet the direct discharge standards stipulated in the Discharge Standard of Water Pollutants for Pesticide Industry (GB 21523-2024). A micro-nano bubble O3/UV/H2O2 synergistic oxidation process was constructed for the advanced treatment of organophosphorus biochemical tailwater. The effects of various factors, including different treatment methods, initial pH, micro-nano bubble O3 dosage, UV dose, H2O2 dosage, and reaction time, on the degradation efficiency of organophosphorus biochemical tailwater were investigated. Parameter optimization and validation were conducted using the Box-Behnken response surface methodology. The results showed that, compared to the traditional macro-bubble method, the micro-nano bubble method exhibited better performance in the degradation of organophosphorus biochemical tailwater. The micro-nano bubble O3/UV/H2O2 synergistic oxidation process outperforms other treatment processes. The optimization results from the response surface methodology revealed that the order of influence of various factors on the experimental results was: UV dose > micro-nano bubble O3 dosage > H2O2 dosage. The optimal operating parameters were as follows: initial pH of 8, reaction time of 10 minutes, micro-nano bubble O3 dosage of 4.5 mg/L, UV dose of 9 mJ/cm2, and H2O2 dosage of 2.25 mg/L. Based on the ternary polynomial model, the inorganic conversion rate of organophosphorus under the optimal conditions was calculated to be 82.5%, while the actual experimental result was 82.4%. The high degree of concordance between these results fully verified the accuracy of the model in predicting the degradation efficiency of the micro-nano bubble O3/UV/H2O2 process for organophosphorus.
Last Update:
2026-05-01