Protein and water recovery from poultry processing wastewater integrating microfiltration, ultrafiltration and vacuum membrane distillation|
Białas, W.; Stangierski, J. & Konieczny, P.
A novel approach for the recovery of the proteins
contained in the effluent formed during production of
surimi-like material from mechanically recovered poultry
meat was proposed, using an integrated membrane process
comprising microfiltration, ultrafiltration and vacuum
membrane distillation. Additionally, the possibility of
using the integrated membrane process to achieve highquality
water for reuse was also investigated. Using crossflow
membrane techniques, it was found that the total
recovery of soluble proteins as well as the average degree
of concentration amounted to 84 % and 9.3, respectively.
Moreover, using this process, the total recovery of water
was 70 % and the percentage reduction in COD, TOEM
and TSS in the permeate obtained using vacuum membrane
distillation exceeded 99 %. As a result, the water recovered
by the integrated membrane process could be reused in the
manufacture of surimi-like material from mechanically
recovered poultry meat.
Water purification; Polypropylene membrane; Fouling; Rejection coefficient; Mechanically recovered poultry meat; Hydrophobicity; Downstream pressure