Tailings remaining after scavenging are disposed as mine fills. Tailings that do not float into the surface froth are sometimes exposed to further flotation separation or scavenging processes. During the method, ore is crushed and introduced to an aeration tank where air bubbles adhere to hydrophobic minerals, creating a froth that floats to the floor. In mid-May, Japan began the Zhejiang-Jiangxi campaign in China, with the goal of inflicting retribution on the Chinese who aided the surviving A...