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Induced Pre-Saturation Tower: A Technological Innovation for Oily Water Treatment in Semi-Industrial Scale

Author

Listed:
  • Leonardo Bandeira dos Santos

    (UNICAP-ICAM TECH International School, Catholic University of Pernambuco (UNICAP), Rua do Príncipe, n. 526, Boa Vista, Recife 50050-900, PE, Brazil
    Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil)

  • Rita de Cássia Freire Soares da Silva

    (Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil)

  • Leonildo Pereira Pedrosa

    (UNICAP-ICAM TECH International School, Catholic University of Pernambuco (UNICAP), Rua do Príncipe, n. 526, Boa Vista, Recife 50050-900, PE, Brazil
    Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil)

  • Rodrigo Dias Baldo

    (Centrais Elétricas da Paraíba—EPASA, Rua Projetada, s/n, Engenho Triunfo—Estrada do Aterro Sanitário, Km 1, João Pessoa 58071-973, PB, Brazil)

  • Mohand Benachour

    (Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil
    Department of Chemical Engineering, Federal University of Pernambuco, Av. dos Economistas, s/n, Recife 50740-590, PE, Brazil)

  • Attilio Converti

    (Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, Università degli Studi di Genova (UNIGE), Via Opera Pia 15, I-16145 Genova, Italy)

  • Leonie Asfora Sarubbo

    (UNICAP-ICAM TECH International School, Catholic University of Pernambuco (UNICAP), Rua do Príncipe, n. 526, Boa Vista, Recife 50050-900, PE, Brazil
    Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil
    Northeast Biotechnology Network, Federal Rural University of Pernambuco, Rua. Manoel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil)

  • Valdemir Alexandre dos Santos

    (UNICAP-ICAM TECH International School, Catholic University of Pernambuco (UNICAP), Rua do Príncipe, n. 526, Boa Vista, Recife 50050-900, PE, Brazil
    Advanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Prado, Recife 50751-310, PE, Brazil
    Northeast Biotechnology Network, Federal Rural University of Pernambuco, Rua. Manoel de Medeiros, s/n, Dois Irmãos, Recife 52171-900, PE, Brazil)

Abstract

In this work, an induced pre-saturation tower (IPST) for oil–water separation was built on a semi-industrial scale, based on experimental results obtained on a laboratory scale prototype. The main strategy for generating these criteria was to increase the efficiency of the bench scale prototype, which is limited by conditions of low levels of automation and control, with the use of a biosurfactant as an auxiliary collector. The validation of the developed criteria allowed the construction of an IPST with three stages, all fed with previously saturated effluents. The IPST was built in stainless steel, with multistage centrifugal pumps and adapted to generate microbubbles without the use of saturation tanks or compressors. The most relevant operational parameters were selected using a fractional factorial design, while a central composite rotatable design (CCRD) followed by the application of the desirability function allowed to optimize the conditions for partial and global variables, the latter with desirability of 95%. A nominal flow rate of approximately 1000 L·h −1 , a recycle flow rate of 450 L·h −1 , a scraper rotation speed of 80 rpm, an average pressure of the microbubble pumps of 11 bar, and an effluent temperature from IPST of about 38 °C ensured optimized operation for the proposed technological development.

Suggested Citation

  • Leonardo Bandeira dos Santos & Rita de Cássia Freire Soares da Silva & Leonildo Pereira Pedrosa & Rodrigo Dias Baldo & Mohand Benachour & Attilio Converti & Leonie Asfora Sarubbo & Valdemir Alexandre , 2023. "Induced Pre-Saturation Tower: A Technological Innovation for Oily Water Treatment in Semi-Industrial Scale," Energies, MDPI, vol. 16(5), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2278-:d:1082011
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