Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX 76019, USA.
Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, TX 76019, USA; Affiliate of Collaborative Laboratories for Environmental Analysis and Remediation, The University of Texas at Arlington, Arlington, TX 76019, USA.
Sci Total Environ. 2019 Feb 25;653:82-90. doi: 10.1016/j.scitotenv.2018.10.325. Epub 2018 Oct 25.
Unconventional oil and gas operations are on the rise, and they are an integral component to meeting the nation's energy needs. Produced water is the primary by-product of oil and gas operations, and it has proven challenging to treat to date. The aim of this study was to evaluate the feasibility of using forward osmosis with thin-film composite hollow fiber membranes as a remediation option for produced water with high total dissolved solids levels from the Permian Basin. Trials consisted of a series of 5 experiments in order to evaluate the performance of the membrane. Three PW samples, each from different locations, were used to conduct the series of experiments and compare the performance of the membranes on samples with TDS levels ranging from 16,000 to 210,000 mg/L. It was concluded that forward osmosis can be used to extract water from high salinity oil field brines and PW. Flux decreased over the course of the trials due to a combination of membrane fouling, concentration polarization, and temperature fluctuations. The flux of the PW was similar to the flux measured for the PW mimic with small difference due to the influence of activity on the osmotic pressure. The flux was also influenced by temperature and the linear velocity of the feed solution and draw solution.
非常规油气作业正在兴起，它们是满足国家能源需求的重要组成部分。采出水是油气作业的主要副产品，迄今为止，其处理一直具有挑战性。本研究旨在评估使用正向渗透与薄膜复合中空纤维膜作为一种修复二叠纪盆地高总溶解固体水平采出水的方法的可行性。试验包括一系列的 5 个实验，以评估膜的性能。使用了三个 PW 样品，每个样品来自不同的地点，进行了一系列实验，比较了在 TDS 水平从 16000 到 210000mg/L 的样品上膜的性能。结论是，正向渗透可以用于从高盐度油田卤水和 PW 中提取水。通量在试验过程中下降，原因是膜污染、浓度极化和温度波动的综合作用。由于渗透压的影响，PW 的通量与 PW 模拟物测量的通量相似，差异很小。通量还受到温度和进料溶液和汲取液的线性速度的影响。
