摘要
研究了碳酸氢钠活化过氧化氢法(BAP)、芬顿高级氧化技术(Fenton)、臭氧氧化技术(O_(3))及其复合工艺对三磺钻井液中的主要成分磺化酚醛树脂(SMP)的降解效能。遴选出BAP/O_(3)复合体系作为降解磺化酚醛树脂的最佳工艺,并探究了复合氧化相互作用机理。结果表明,复合配方去除SMP效果优劣顺序为(BAP/O_(3))>(BAP/Fenton/O_(3))>(BAP/Fenton)>(Fenton/O_(3));除BAP和Fenton分段复合取得更佳效果外,其他3种复合配方均在同时添加时取得更佳的降解效果;BAP/O_(3)复合对SMP取得了最佳的降解和矿化作用,最大SMP去除率为95.92%。淬灭剂实验表明,BAP/O_(3)复合氧化体系中的主要活性氧化剂为碳酸根自由基(·CO_(3)^(-))、超氧自由基(O_(2)^(-·))和羟基自由基(·OH),其中·CO_(3)^(-)及其诱发的次生反应起到了关键作用。
In this study,the degradation efficacies of sodium bicarbonate-activated hydrogen peroxide(BAP),Fenton advanced oxidation(Fenton),ozone oxidation(O_(3)),and their composite processes on sulfonated phenolformaldehyde resins(SMP),which are the main components of trisulfuric drilling fluids,were compared.The BAP/O_(3) composite system was selected as the best process for degrading sulfonated phenolic resins,and the composite oxidation interaction mechanism was also investigated.The results showed that the order of the composite formulations for SMP removal was(BAP/O_(3))>(BAP/Fenton/O_(3))>(BAP/Fenton)>(Fenton/O_(3)).Except for the segmental composites of BAP and Fenton with a better performance,other three composite formulations adding at the same time also achieved better degradation effects.BAP/O_(3) composite achieved the optimal degradation and mineralization of SMP with the maximum removal rate of 95.92%.The quenching experiments showed that the main active oxidants in the BAP/O_(3) composite oxidation system were carbonate radicals(·CO_(3)^(-)),superoxide radicals(O_(2)^(-·))and hydroxyl radicals(·OH),of which·CO_(3)^(-)and its induced secondary reaction played key roles.
作者
王兵
孙越
商佳俭
陶建
李爽
任宏洋
WANG Bing;SUN Yue;SHANG Jiajian;TAO Jian;LI Shuang;REN Hongyang(School of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu 610500,China;Sichuan Key Laboratory of Environmental Pollution Prevention and Control and Environmental Safety,Chengdu 610500,China;Oil and Gas Field Capacity Construction Division of Tarim Oilfield Branch of PetroChina Co.Ltd.,Tarim 841000,China;Tarim Oilfield Company Tazhong Oil and Gas Management Area,Tarim 841000,China)
出处
《环境工程学报》
CAS
CSCD
北大核心
2024年第2期335-342,共8页
Chinese Journal of Environmental Engineering
基金
四川省科技计划资助项目(2022ZYD0044,2021YFG0116)
四川省油气田应用化学重点实验室开放项目(YQKF202107)
中国石油技术研究资助项目(2019D-500807)。
关键词
高级氧化法
复合
磺化酚醛树脂
自由基
advanced oxidation process
combination
sulfonated phenolic resin
free radical
