1. H.M. Kyllonen, P. Pirkonen, M. Nystrom, Membrane filtration enhanced by ultrasound: a review, Desalination, 181 (2005) 319–335.
  2. S.A. Creber, J.S. Vrouwenvelder, M.C.M. van Loosdrecht, M.L. Johns, Chemical cleaning of biofouling in reverse osmosis membranes evaluated using magnetic resonance imaging, J. Membr. Sci., 362 (2010) 202–210.
  3. H.F. Ridgeway, Biological fouling of separation membranes used in water treatment applications, AWWA Research Foundation, 2003.
  4. S.S. Madaeni, S. Samieirad, Chemical cleaning of reverse osmosis membrane fouled by wastewater, Desalination, 257 (2010) 60–86.
  5. J. Li, R.D. Sanderson, E.P. Jacobs, Ultrasonic cleaning of nylon microfiltration membranes fouled by Kraft paper mill effluent, J. Membr. Sci., 205 (2002) 247–257.
  6. F. Chemat, N. Rombaut, A.G. Sicaire, A. Meullemiestre, A.S.F. Tixier, M.A. Vian, Ultrasound assisted extraction of food and natural products. Mechanisms, techniques, combinations, protocols and applications. A review, Ultrason. Sonochem., 34 (2017) 540–560.
  7. N.A. Al-Dhabi, K. Ponmurugan, P.M. Jeganathan, Development and validation of ultrasound-assisted solid-liquid extraction of phenolic compounds from waste spent coffee grounds, Ultrason. Sonochem., 34 (2017) 206–213.
  8. M.O. Lamminen, H.W. Walker L.K. Weavers, Mechanisms and factors influencing the ultrasonic cleaning of particle-fouled ceramic membranes, J. Membr. Sci., 237 (2004) 213–223.
  9. S. Muthukumaran, K. Yang, A. Seuren, S. Kentish, M. Ashokkumar, G.W. Stevens, F. Grieser, The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry, Separ. Purif. Technol., 39 (2004) 99–107.
  10. A. Maskooki, T. Kobayashi, S.A. Mortazavi, A. Maskooki, Effect of low frequencies and mixed wave of ultrasound and EDTA on flux recovery and cleaning of microfiltration membranes, Separ. Purif. Technol., 59 (2008) 67–73.
  11. A. Maskooki, S.A. Mortazavi, A. Maskooki, Cleaning of spiralwound ultrafiltration membranes using ultrasound and alkaline solution of EDTA, Desalination, 264 (2010) 63–69.
  12. S. Popovic, M. Djuric, S. Milanovic, M.N. Tekic, N. Lukic, Application of an ultrasound field in chemical cleaning of ceramic tubular membrane fouled with whey proteins, J. Food Eng., 101 (2010) 296–302.
  13. D. Veerasamy, A.F. Ismail, Rehabilitation of fouled membrane from natural rubber skim latex concentration through membrane autopsy and ultrasonication enhanced membrane cleaning procedure, Desalination, 286 (2012) 235–241.
  14. L. Wang, Q. Wang, Y. Li, H. Lin, Ultrasound-assisted chemical cleaning of polyvinylidene fluoride membrane fouled by lactic acid fermentation broth, Desalination, 326 (2013) 103–108.
  15. M.J. Luján-Facundo, J.A. Mendoza-Roca, B. Cuartas-Uribe, S. Álvarez-Blanco, Ultrasonic cleaning of ultrafiltration membranes fouled with BSA solution, Separ. Purif. Technol., 120 (2013) 275–281.
  16. E. Alventosa-deLara, S. Barredo-Damas, M.I. Alcaina-Miranda, M.I. Iborra-Clar, Study and optimization of the ultrasound-enhanced cleaning of an ultrafiltration ceramic membrane through a combined experimental–statistical approach, Ultrason. Sonochem., 21 (2014) 1222–1234.
  17. S. Muthukumaran, S. Kentish, S. Lalchandani, M. Ashokkumar, R. Mawson, G.W. Stevens, F. Grieser, The optimisation of ultrasonic cleaning procedures for dairy fouled ultrafiltration membranes, Ultrason. Sonochem., 12 (2005) 29–35.
  18. X. Chai, T. Kobayashi, N. Fujii, Ultrasound-associated cleaning of polymeric membranes for water treatment, Separ. Purif. Technol., 15 (1999) 139–146.
  19. H. Kyllonen, P. Pirkonen, M. Nystrom, J. Nuortila-Jokinen, A. Gronroos, Experimental aspects of ultrasonically enhanced cross-flow membrane filtration of industrial wastewater, Ultrason. Sonochem., 13 (2006) 295–302.
  20. Y. Matsumoto, T. Miwa, S.-I. Nakao, S. Kimura, Improvement of membrane permeation performance by ultrasonic microfiltration, J. Chem. Eng. Japan, 29(4) (1996) 561–567.
  21. R. Wakeman, E. Tarleton, An experimental study of electroacoustic cross-flow microfiltration, Chem. Eng. Res. Design, 69 (1991) 387–397.
  22. T. Kobayashi, X. Chai, N. Fujii, Ultrasound enhanced crossflow membrane filtration, Separ. Purif. Technol., 17 (1999) 31–40.
  23. D. Feng, J.S.J. van Deventer, C. Aldrich, Ultrasonic defouling of reverse osmosis membranes used to treat wastewater effluents, Separ. Purif. Technol., 50 (2006) 318–323.
  24. Y.S. Li, L.C. Shi, X.F. Gao, J.G. Huang, Cleaning effects of oxalic acid under ultrasound to the used reverse osmosis membranes with an online cleaning and monitoring system, Desalination, 390 (2016) 62–71.
  25. R.H. Piedrahita, K.B.H. Wong, Method and apparatus for preventing biofouling of aquatic sensors, Patent number: US5889209 (A), Applicant: University of California, Classification: B08B17/00; G10K15/02; (IPC1-7): G01H17/00.
  26. J. Wang, X. Gao, Y. Xu, Q. Wang, Y. Zhang, X. Wang, C. Gao, Ultrasonic-assisted acid cleaning of nanofiltration membranes fouled by inorganic scales in arsenic-rich brackish water, Desalination, 377 (2016) 172–177.
  27. B. Garcia-Fayos, J.M. Arnal, A. Gimenez, S. Alvarez-Blanco, M. Sancho, Static cleaning tests as the first step to optimize RO membranes cleaning procedure, Desal. Water Treat., 55(12) (2015) 3380–3390.
  28. B. Garcia-Fayos, J.M. Arnal, A. Gimenez, S. Alvarez-Blanco, M. Sancho, Optimization of chemical cleaning of a reverse osmosis membrane from a desalination plant by means of two-step static tests, Desal. Water Treat., 55(12) (2015)3367–3379.