Sand Improvement by Surface Percolation Method Using Urease-Containing Substance Extracted from Soybean Seed

Figure 3

Extraction of urease from soybean powder in an incubator on stirrer (a, b), milky suspension after 20 h of extraction and before filtering with fabric filter (c), use of fabric filter for filtering the solids (d), centrifugation of filtered suspension and separating residual solids (e), and UCE (f).