Efficient application of brucite powder in heavy metal ion wastewater treatment

Brucite, a natural mineral rich in MgCO₃ (magnesium carbonate), light-burned brucite and heavy-burned brucite after calcination conversion, show great potential in the field of heavy metal ion wastewater treatment due to their unique chemical and physical properties.

Application mechanism of brucite powder

· Adsorption: Brucite powder removes heavy metal ions by physical or chemical adsorption.

· Precipitation: Reacts with heavy metal ions to form insoluble precipitates, effectively removing heavy metals from wastewater.

· pH adjustment: By adjusting the pH value of wastewater, heavy metal ions are precipitated.

· Synergistic effect: Combined with other wastewater treatment technologies to improve the removal efficiency of heavy metal ions.

Application examples and research progress

· Particle size effect: Fine-grained brucite powder (such as 200 mesh or 500 mesh) shows better removal effect.

· Treatment efficiency: Under the condition of 8g/L of brucite powder, it can effectively remove heavy metal ions such as copper, lead, zinc, and cadmium.

· Surface modification: Surfactants are used to modify brucite powder to enhance its lipophilicity and hydrophobicity and improve its adsorption capacity.

Practical application considerations

· Economic efficiency: Evaluate the cost-effectiveness of brucite powder and the feasibility of its recycling and reuse.

· Ease of operation: Ensure that the treatment process is easy to operate and maintain.

· Environmental impact: Minimize the potential impact of the treatment process on the environment.

· Regulatory compliance: Ensure that the treated water quality meets local emission standards.

The high adsorption performance of brucite powder makes it an ideal choice for treating wastewater containing heavy metal ions. To optimize the treatment effect, factors such as particle size and surface modification need to be considered, and the optimal operating conditions should be determined through experiments. Future research will further explore the modification technology and new application areas of brucite powder to further improve its efficiency and economy in wastewater treatment.