@article{kumar_nandi_guria_mandal_2017,  title={Oil Removal from Produced Water by Ultrafiltration using Polysulfone Membrane},  volume={34},  ISSN={0104-6632},  url={https://doi.org/10.1590/0104-6632.20170342s20150500},  DOI={10.1590/0104-6632.20170342s20150500},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Kumar, S. and Nandi, B. K. and Guria, C. and Mandal, A.},  year={2017},  month={Apr},  pages={583–596} }