Info

FIGURE 4.9. Flotation apparatus for extraction of soil invertebrates (Ladell's modified flotation apparatus). (a) Edwards and Denis, 1962; (b) Salt, 1953. I: Separation of organic matter from the mineral components of the soil; II: Separation of soil invertebrates and organic residue. The process uses these materials: (a) 1 = flotation vessel with air supply from below, 2 = container with salt solution, 3 = sieve, 4 = sedimentation tank, 5 = glass oil separator, 6 = gauze with the material under study, 7 = glass funnel, 8 = flask connected to suction pump. (b) 1 = vessels with coarse and fine sieves, 2 = container collecting the residue, 3 = outlet, 4 = final collecting sieve, 5 = water tank, 6 = water bath, 7 = glass for oil-water flotation (from Kaczmarek, 1993).

0 0

Post a comment