Treatment of seafood processing wastewaters by ultrafiltration-nanofiltration cellulose acetate membranes

The use of ultrafiltration and nanofiltration membranes for the purification of cork processing wastewater

“…6 shows the evolution of the steady-state permeate flux with the TMP in the experiments carried out with both UF membranes and with a tangential velocity of 2 m s −1 , taken as example. It is observed that J v increased linearly with increasing pressure in the range of TMP used, as it has been reported by other authors in similar studies performed with different wastewaters [15,20]. Similarly, the experiments performed with the NF CK membrane showed (experiments CK-1, CK-2 and CK-3 in Table 1) that the permeate flux also increased with the increase in the TMP.…”

“…Thus, after regression analysis, the following values were deduced, with correlation coefficients higher than 0.99: 64.8, 30.5, 6.45 and 4.61 L h −1 m −2 bar −1 , for the PW, PT, CK and DK membranes, respectively, at 20 • C. Specifically for the two UF membranes, the increase in the hydraulic permeability occurred as could be expected: among membranes of the same nature, larger pore sizes or MWCO lead to higher pure water fluxes [15]. In this way, the NF membranes presented much lower L p values than the UF membranes.…”

Electricity generation from seafood wastewater in a single‐ and dual‐chamber microbial fuel cell with CoTMPP oxygen‐reduction electrocatalyst

“…During wastewater treatment, the SCMFC could achieve COD removal in excess of 80 % as a result of oxic degradation using the oxygen diffused from the air cathode. This value appears to be comparable with that obtained using a UASB 6 and membrane process 20 In comparison with these processes, the additional benefit of MFC is the electricity production along with the wastewater treatment. Seafood wastewater is better suited to an MFC because the high salinity (3%) provides a good electrolyte having a high solution conductivity to maintain a small internal resistance.…”

Identification of the Major ACE-Inhibitory Peptides Produced by Enzymatic Hydrolysis of a Protein Concentrate from Cuttlefish Wastewater

“…For this reason, the protein content was significantly higher than others previously reported for cuttlefish processing effluents [16,17]. Protein concentration in cuttlefish softening wastewater was 11.5 ± 0.34 g L −1 and reached 95.42 ± 1.22 g L −1 of protein content after ultrafiltration-diafiltration (UF-DF) at 10 kDa.…”