Research Article

Recovery of Bacillus licheniformis Alkaline Protease from Supernatant of Fermented Wastewater Sludge Using Ultrafiltration and Its Characterization

Table 2

Characteristics of the membrane.

Description of membraneCharacteristics
of membrane

TypePrep/scale spiral wound TFF-1
Filter typeUltrafiltration
Length, cm (in.)23.4 (9.2)
Diameter, cm (in.)5.8 (2.3)
Minimum working volume (mL)150
pH range2.0–13.0
ConfigurationSpiral wound cartridge
Filtration area (m2)0.23
Operation temperature (°C)4–50
Filter materialRegenerated cellulose
Maximum Intel pressure, bar (psi)0–5.5 (0–80)
Recirculation rate (L/min)1.0–6.0
Molecular weight cut off (MWCO), kDa10