A 10000m 3 /day acid mine drainage treatment system was built in 2013, and the sulfidization method was adopted. The process flow diagram is shown in Fig. 2 [ 30 ]. Test results of water quality are listed in Table 4. The average recovery rate of iron was 98.96%, and the average recovery rate of copper was 90.41%. When aluminum sulfate is mixed with water, it forms sulfuric acid that burns human skin and eyes. Contact with the skin causes a red rash, itching, and a burning feeling while inhalation irritates the lungs and throat. ... Treatments. Treatments for aluminum sulfate poisoning or contact with it are common and practical precautions regarding. sulfuric acid (acid aerosols including mists, vapors, gas, fog and other airborne forms of any particle size) Sulfuric acid contained in strong inorganic acid mists Sulfuric acid with >51% acid.