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Dissolved Air Flotation for Fiber Removal from Clear Water

Floresta e ambiente, 2018-01, Vol.25 (2)

This work is licensed under a Creative Commons Attribution 4.0 International License. ;ISSN: 1415-0980 ;ISSN: 2179-8087 ;EISSN: 2179-8087 ;DOI: 10.1590/2179-8087.012416

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  • Title:
    Dissolved Air Flotation for Fiber Removal from Clear Water
  • Author: Manago, Bruna Luiza ; Vidal, Carlos Magno de Sousa ; Souza, Jeanette Beber de ; Neves, Ludmila Carvalho ; Martins, Kelly Geronazzo
  • Subjects: fiber recovery ; paper industry ; PLANT SCIENCES ; total suspended solids
  • Is Part Of: Floresta e ambiente, 2018-01, Vol.25 (2)
  • Description: ABSTRACT We investigated the use of dissolved air flotation (DAF) to treat clear water effluent from the paper industry in order to remove fibers. The dosage of polyaluminium chloride (PAC) was varied in the following concentrations: 0, 75, 100, 125, 150 and 175 mg/L; as well as bubble rise velocity of 18 and 9 cm/min for two types of paper wastewater: print and gloss. Data were statistically analyzed through factorial arrangement 6x2x2. The treatment of the print paper effluent showed better performance in removing the analyzed parameters with an optimal dosage of 100 mg/L PAC, whereas the gloss paper effluent treatment had satisfactory removal of analyzed parameters with an optimal dosage of 150 mg/L of PAC. This led to the observation that the high efficiency directly obtained with the DAF in conjunction with the use of PAC coagulant was an excellent primary treatment option for effluent resulting from the paper industry.
  • Publisher: Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro
  • Language: English;Portuguese
  • Identifier: ISSN: 1415-0980
    ISSN: 2179-8087
    EISSN: 2179-8087
    DOI: 10.1590/2179-8087.012416
  • Source: SciELO
    DOAJ Directory of Open Access Journals
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