Treatment of Produced Water from Oilfield by Submerged Membrane Bioreactor (SMBR) for Reinjection
Produced water,the significant wastewater in association with oil and gas production in oilfield,is characterised by the presence of crude oil and also many inorganic substances.It is very difficult to treat this water to meet the reinjection water quality for low and ultra-low permeability reservoirs.In the present paper,the treatment of produced water from Daqing Oilfield was investigated using a submerged membrane bioreactor (SMBR).The SMBR was operated for about 6 months with constant permeate flux and hydraulic retention time HRT of 12 hours.The experimental results showed that the SMBR had a high retention of crude oil,total suspension substance (TSS),turbidity,ammonia nitrogen (NH4+-N),and medium grain size.In the permeate,the content of crude oil,NH4+-N and turbidity were respectively lower than 1 mg/L,lmg/L,and 1 NTU,while the TSS content was below detection limits (2.5 mg/L) and medium grain size was undetectable.The pemeate could reach the grade A1 criteria specified in the Recommendation Standard and Analysis Method for the Clastic Rock Reservoir Injection Water Quality (SY/T 5329-94,China).
produced water membrane bioreactor polyvinylidene fluoride reinjection
Yong SUN Wen-xin SHI Jun XU Min YU Ling-zhi JIA
College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China State Key Laboratory of Urban Water Resource and Environment,Harbin Institute of Technology,Harbin 1 The Second Oil Production Plant of Daqing Oilfield,Daqing 163414,China
国际会议
哈尔滨
英文
1541-1544
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）