The production of cheese generates copious wastewater with very high organic load, which requires a series of treatments prior to discharge. In this study, protein was ultrasonically treated and then recovered from cheese wastewater using isoelectric precipitation. After initial ultrasonic treatment with an ultrasonic energy of 1,800 kJ/L, the protein could be effectively precipitated at pH = 4.5, and about (67.7 ± 0.5) % of the protein was separated out. Because the chemical oxygen demand (COD) load remained high, the supernatant was treated by flocculation and coagulation. Treatment using polyferric sulfate (PFS) coagulation of 200 mg/L and nonionic polyacrylamide (PAM) flocculation of 4 mg/L reduced the turbidity by (98.6 ± 0.4)%, and COD by (89.2 ± 0.9)%.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Recovery of Protein from High-Concentration Cheese Wastewater and Subsequent Coagulation—Flocculation Treatment


    Additional title:

    KSCE J Civ Eng


    Contributors:
    Sheng, Jiayi (author) / Han, Ihnsup (author) / Ying, Xinyi (author)

    Published in:

    Publication date :

    2022-04-01


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Research on Flocculation of Protein-Bearing Wastewater by Alga Flocculant

    Chen, X. / Li, X.L. / Zhang, X. | British Library Conference Proceedings | 2014




    FLOCCULATION MAGNETIC SEPARATOR

    TERUI SHIGEKI / YAMADA MANABU | European Patent Office | 2016

    Free access

    Coagulation Changes During Graded Orthostatic Stress and Recovery

    Goswami, N. / Cvirn, G. / Schlagenhauf, A. et al. | British Library Conference Proceedings | 2013