摘要
中国石化海南炼油化工有限公司采用膜生物反应器(MBR)工艺处理炼油废水,以达到深度处理后回用的目的。采用国产聚偏氟乙烯(PVDF)中空纤维膜可保证MBR系统的处理效果,MBR出水的COD质量浓度平均值为41mg/L、石油类物质质量浓度低于1mg/L、NH3-N质量浓度低于0.81mg/L,可满足补充循环冷却水的标准。以国产PVDF中空纤维膜更换进口膜,保持膜产水量低于设计通量,能降低膜的污染速率,保持稳定的膜通量。通过保持适宜的污泥浓度,定期排泥,并采用空气擦洗、在线反冲洗、高浓度和低浓度交替的化学在线清洗及定期的离线清洗,国产PVDF中空纤维膜可保持良好的过滤性能。
Membrane bioreactor （MBR） is applied in refining wastewater advanced treatment for water reuse at SINOPEC Hainan Petrochemical Company. Using domestic PVDF hollow fiber mem-brane to substitute the import one, the quality of treated effluent still can meet the quality requirements for reuse as makeup of circulating water, having average COD of 41 mg/L, average hydrocarbons and NH3-N of be-low 1 mg/L and 0. 81 mg/L, respectively. Keeping membrane flux less than the design value could slow down the rate of membrane fouling and maintain a stable membrane flux However, in order to keep the domestic PVDF hollow fiber membrane under good conditions, proper online cleaning and routine offline cleaning are es- sential, besides, retaining appropriate sludge concentration and discharging sludge regularly are also important.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2013年第3期79-82,共4页
Petroleum Processing and Petrochemicals
基金
浙江省环保科研计划项目(2011B30)
嘉兴市南湖区科技计划项目(2011QH05)
