| 摘要: |
| 油气田钻井废液一直是油田治理环境风险的难题,本实验以某油田钻井废液为研究对象,其COD值高达67 920 mg/L,通过酸化-混凝-催化氧化等联合工艺对其进行处理,重点考察新型混凝剂PAZC的制备及其二氧化氯催化氧化过程的最佳工艺条件,处理后其COD值能降到126.9 mg/L,达到GB/T 8978-1996《污水综合排放》的二级排放标准。 |
| 关键词: 钻井废液 酸化 混凝 催化氧化 联合工艺 |
| DOI：10.3969/j.issn.1007-3426.2013.06.025 |
| 分类号: |
| 基金项目: |
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| Combined treatment of acidification-coagulation-catalytic oxidation of drilling waste |
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Du Guoyong, Huang Rong, Zeng Yang
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(Chemistry and Chemical Engineering Institute, Southwest Petroleum University, Chengdu 610500, Sichuan,China)
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| Abstract: |
| The drilling wastewater from oil and gas field has been a problem of environmental risk for oil field management. In this experiment, the oilfield drilling wastewater was put as the research object, in which the COD value reached up to 67 920 mg/L. The preparation of a new coagulant PAZC and optimum conditions of chlorine dioxide catalytic oxidation process by acidification-coagulation-catalytic oxidation process were mainly researched. The COD value could be reduced to 126.9 mg/L after treatment and achieved the secondary discharge standard of “Integrated Wastewater Discharge 8978-1996”. |
| Key words: drilling waste acidification coagulation catalytic oxidation combined treatment |
