Department of Civil and Resource Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada.
Department of Civil and Resource Engineering, Dalhousie University, Halifax, NS B3H 4R2, Canada.
Mar Pollut Bull. 2023 Sep;194(Pt B):115397. doi: 10.1016/j.marpolbul.2023.115397. Epub 2023 Aug 11.
Canadian oil spill response regulations require collection of all liquids from a response operation, this involves many vessels and frequent trips to shore to dispose of collected liquids, which mainly comprise of water. Onsite treatment of decanted oily seawater would benefit operations by addressing vessel storage and trip frequency issues. Membrane technology has proven effective at treating oily wastewater from various industries; therefore, is a good candidate for onsite treatment of wastewater generated from response operations. In this study, oily seawater treatment efficiency of a pilot-scale physical membrane filtration and a bench-scale membrane bioreactor (MBR) were compared. Three main parameters were considered, total petroleum hydrocarbon, petroleum hydrocarbon fractions, and polycyclic aromatic hydrocarbons. 99.1 % and 98.2 % TPH removal efficiency were achieved by MBR (93.1 ppm initial oil concentration) and membrane filtration (28.3 ppm initial oil concentration), respectively. The MBR showed more promise than membrane filtration for onsite treatment of decanted wastewater.
加拿大溢油应急法规要求收集应急作业产生的所有液体，这涉及到许多船只和频繁地往返岸上处理收集的液体，其中主要是水。对倾析的含油海水进行就地处理将有利于解决船只存储和往返频率问题。膜技术已被证明在处理来自不同行业的含油废水方面非常有效；因此，它是处理应急作业产生的废水的理想选择。在这项研究中，比较了中试规模物理膜过滤和小试规模膜生物反应器（MBR）对含油海水的处理效率。考虑了三个主要参数，总石油烃、石油烃馏分和多环芳烃。MBR（初始油浓度 93.1ppm）和膜过滤（初始油浓度 28.3ppm）的总石油烃去除效率分别达到 99.1%和 98.2%。对于倾析废水的就地处理，MBR 比膜过滤更有前景。
