| abstract |
The invention discloses a treatment method for simultaneous deep removal of thallium-containing heavy metal wastewater, and relates to the technical field of wastewater treatment. Stabilizer, make heavy metals and stabilizers form stable compounds, and enter the secondary reaction pool after a period of reaction; add biological agents to the secondary reaction pool to adjust pH to 6-9, and cooperate with heavy metal compounds to form water-insoluble complexes After reacting for a period of time, it enters the tertiary reaction tank; adding a coagulant to the tertiary reaction tank, and reacting for a period of time to complete the solid-liquid separation; the mud-water mixture in the tertiary reaction tank is pumped into the filter device by a lift pump to obtain a section of The supernatant and bottom sludge are safely disposed of. The first-stage supernatant is subjected to the second-stage treatment, and the above operation is repeated to obtain the second-stage supernatant, and the advanced treatment of thallium-containing heavy metal wastewater can be completed, and thousands of milligrams per liter of thallium can be removed to 0.001 Below mg/L, the removal efficiency is as high as 99.9%. |