Integrated Solution for Thallium Removal in Heavy Metals
Technical Background
Thallium is widely present in metal and non-metal mineral deposits as a by-product element. During the mining and smelting processes, it can lead to the presence of thallium in rainwater, flue gas desulfurization wastewater, and products. In March 2022, the Ministry of Ecology and Environment issued the "Opinions on Further Strengthening the Prevention and Control of Heavy Metal Pollution", highlighting thallium as a newly prioritized heavy metal pollutant for control.
Technical Introduction
CIMC Environmental's thallium removal process involves an "intelligent dosing system + high-efficiency reactor + solid-liquid separation system", characterized by a simplified process and stable thallium concentration in the treated water.
Technical Advantages
  • High treatment efficiency
    The reaction time only takes 10-15 minutes to meet the thallium treatment standards.
  • High discharge standard
    The thallium concentration in the effluent can be reduced to 0.1µg/L.
  • No secondary pollution
    Only a small amount of sodium ions and sulfate ions are introduced, without producing toxic gases such as hydrogen sulfide.
  • Low sludge production
    The sludge production is only 1/5 to 1/10 of that in traditional processes.
Applications
  • In-situ water body remediation
  • Emergency water treatment
  • Industrial wastewater treatment
  • Industrial park wastewater treatment
  • Mining wastewater treatment
Project Cases
Emergency water treatment field
Thallium pollution project in river basins
  • 2.5μg/L
    Thallium concentration: Inflow
  • 0.07μg/L
    Thallium concentration: Outflow (standard: 0.1 µg/L)
Rainwater treatment field
Rainwater thallium removal project at a lithium company
  • 16μg/L
    Thallium concentration: Inflow
  • 1.7μg/L
    Thallium concentration: Outflow (standard: 3 µg/L)
Product decontamination (thallium removal) field
Thallium removal project from nickel sulfate solution at a lithium company
  • 45mg/L
    Thallium concentration: Inflow
  • 0.6μg/L
    Thallium concentration: Outflow (standard: <1 mg/L)
Industrial wastewater treatment field
Thallium removal project for desulfurization wastewater at a lithium company
  • 860μg/L
    Thallium concentration: Inflow
  • 1.7μg/L
    Thallium concentration: Outflow (standard: 5 µg/L)