[1] Velghe, I., et al. (2013) Study of the Pyrolysis of Sludge and Sludge/Disposal Filter Cake Mix for the Production of Value Added Products. Bioresource Technology, 134, 1-9.
http://dx.doi.org/10.1016/j.biortech.2013.02.030
[2] Lima, C.S., et al. (2014) Analysis of Petroleum Oily Sludge Produced from Water-Oil Separator. Revista Virtual de Química, 6, 1160-1171.
[3] Bokovikova, T.N., Shperber, E.R., Shperber, D.R. and Marchenko, L.A. (2014) Management Oil Waste of Primary Oil Refining. Letters in International Scientific Journal for Alternative Energy and Ecology, 1, 27-36.
[4] Storage Tank.
http://en.wikipedia.org/wiki/Storage_tank
[5] T-Type Sludge Mapping System.
http://www.oceanscan.net/c-Products
[6] Monteiro, M., Svet, V. and Sandilands, D. (2014) The Features of Acoustic Bathymetry of Sludge in Oil Storage Tanks. Open Journal of Acoustics, 4, 39-54.
[7] Hooyberghs, H. (2013) “Pictures” the Emissions of Storage Tanks with the Use of Infrared Cameras. 6th Annual Aboveground Storage Tank Conference & Trade Show Houston, Houston, 19 September 2013, 16-21.
[8] Venkoparao, V. and Sai, B. (2013) Method and Apparatus for Automatic Sediment or Sludge Detection, Monitoring, and Inspection in Oil Storage and Other Facilities. US Patent No. 8452046.