化工进展 ›› 2023, Vol. 42 ›› Issue (6): 3302-3308.DOI: 10.16085/j.issn.1000-6613.2022-1485

• 资源与环境化工 • 上一篇    下一篇

高铁酸盐处理难降解有机物磺化酚醛树脂

杨红梅1(), 高涛2, 鱼涛1, 屈撑囤1,2(), 高家朋1   

  1. 1.西安石油大学,陕西省油气田环境污染控制与储层保护重点实验室,陕西 西安 710065
    2.陕西延长石油(集团)有限责任公司研究院,陕西 西安 710065
    3.中国石油安全环保技术研究院,石油石化污染物控制与处理国家 重点实验室,北京 102206
  • 收稿日期:2022-08-11 修回日期:2022-10-11 出版日期:2023-06-25 发布日期:2023-06-29
  • 通讯作者: 屈撑囤
  • 作者简介:杨红梅(1989—),女,硕士研究生,研究方向为油气田污染物控制。E-mail:gfyzyhm@163.com
  • 基金资助:
    陕西省教育厅服务地方专项计划(22JC054)

Treatment of refractory organics sulfonated phenolic resin with ferrate

YANG Hongmei1(), GAO Tao2, YU Tao1, QU Chengtun1,2(), GAO Jiapeng1   

  1. 1.Shaanxi Key Laboratory of Environmental Pollution Control Technology&Reservoir Protection of Oil and Gas Field, Xi’an Shiyou University, Xi’an 710065, Shaanxi, China
    2.Research Institute of Shaanxi Yanchang Petroleum (Group) Co. , Ltd. , Xi’an 710065, Shaanxi, China
    3.State Key Laboratory of Petrochemical Pollution Control and Treatment, PetroChina Institute of Safety and Environmental Protection Technology, Beijing 102206, China
  • Received:2022-08-11 Revised:2022-10-11 Online:2023-06-25 Published:2023-06-29
  • Contact: QU Chengtun

摘要:

采用高铁酸盐处理难降解有机物磺化酚醛树脂(SMP),研究了各影响因素对SMP的CODCr去除率的影响,确定了最佳条件,当SMP初始浓度为0.05%(质量分数)时,高铁酸盐投量为1.2g/L、反应体系pH为13、反应2h,SMP的CODCr去除率为79.4%。高铁酸盐的投量对SMP的CODCr去除率有很大的影响,不同浓度的SMP应当选择不同的高铁酸盐投量。絮凝作用对SMP的去除效果占总去除率一定比例,但SMP的去除仍以氧化作用为主。结合紫外-可见分光光度法(UV-Vis)、凝胶渗透色谱(GPC)和气相色谱-质谱联用(GC-MS)分析可以断定SMP分子结构中磺甲基结构基本完全降解,SMP的大分子主链发生断裂生成分子量为1300左右的带有苯环结构的物质,当主链降解到一定程度后,苯环结构开始被氧化发生开环反应,生成烃类小分子有机物,最终氧化成 CO2 和 H2O。

关键词: 高铁酸盐, 磺化酚醛树脂, 废水, 降解, 色谱

Abstract:

The refractory organic matter sulfonated phenolic resin (SMP) was treated with ferrate. The influences of various factors on the CODCr removal rate of SMP were studied. The optimal conditions were determined. When the initial concentration of SMP was 0.05% (mass ratio), the ferrate was 1.2g/L, the pH=13 and the reaction time was 2h, the CODCr removal rate of SMP was 79.4%. The amount of ferrate had a great influence on the CODCr removal rate. Different concentrations of SMP should choose different ferrate dosage. The removal rate of SMP was still dominated by oxidation and flocculation accounted for a low proportion of the total removal rate. Combined with UV-Vis, GPC and GC -MS analysis, it can be concluded that the sulphomethyl structure of SMP was completely degraded, and the macromolecular backbone of SMP was broken to generate substances with a molecular weight of about 1300 with a benzene ring. When the backbone was degraded to a certain degree, the benzene ring began to be oxidized and the ring-opening reaction occurred to form small molecular organic hydrocarbons, which were eventually oxidized to CO2 and H2O.

Key words: ferrate, sulfonated phenolic resin, waste water, degradation, chromatography

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