Wastewater Treatment System for the Metallurgical Industry

‌Working Principle

Wastewater treatment in the metallurgical industry involves a combination of physical, chemical, and biological processes to remove various pollutants. The wastewater generated is complex, including oily wastewater, copper-containing wastewater, and cyanide-containing wastewater, each requiring specific treatment methods to ensure that the effluent meets discharge standards.

Oily Wastewater Treatment:

Oil Separation: Physical methods are used to remove floating oil.


Micro-electrolysis + Coagulation and Precipitation: The micro-electrolysis process generates reactive substances that break down organic pollutants, followed by coagulation to remove suspended particles.

Biological + Anaerobic Treatment: Anaerobic bacteria degrade organic compounds, reducing chemical oxygen demand (COD) and biological oxygen demand (BOD).

Membrane Bioreactor (MBR) Method: Combines membrane filtration and biological degradation to improve treatment efficiency, meeting the primary discharge standards.

Cyanide-Containing Wastewater Treatment:

Acidification and Stripping: Adjusting the pH allows cyanide compounds to volatilize.

Oxidation and Precipitation: Oxidizing agents convert cyanide to non-toxic cyanates, which are then removed through precipitation.

Filtration + Adsorption: Additional filtration and adsorption processes remove residual contaminants.

Copper-Containing Wastewater Treatment:

Chemical Precipitation: Chemical agents are added to precipitate copper and other heavy metals in solid form.

Filtration: Suspended solids are removed through filtration, ensuring clean effluent.




Product Features

Wide Applicability: Capable of treating various types of metallurgical wastewater, including oily, copper-laden, and cyanide-containing wastewater.

Diverse Treatment Processes: A combination of physical, chemical, and biological techniques tailored to specific pollutants ensures compliance with discharge standards.

High-Efficiency Treatment: The system efficiently removes COD, BOD, suspended solids (SS), and toxic heavy metals.


Environmental Compliance: Treated water meets national primary discharge standards, minimizing environmental pollution.

Space-Saving Design: The integrated treatment system has a small footprint, suitable for metallurgical enterprises of different sizes.

Customizable Solutions: The treatment process can be adjusted based on the specific contaminants in the wastewater, offering tailored solutions for each enterprise.




Applications

Metallurgical Wastewater Treatment: Suitable for the treatment of oily, heavy metal, and cyanide-containing wastewater generated in steel mills, copper mines, aluminum plants, and other metallurgical enterprises.

Mining Wastewater Treatment: Applied in the treatment of wastewater from mining operations, such as copper and lead-zinc mines, which contain heavy metals and toxic pollutants.

Metal Processing Industry: Ideal for the treatment of wastewater from metal smelting, processing, and electroplating, particularly for wastewater with high concentrations of heavy metals and toxic substances.