Industrial Wastewater Treatment Solution

Industrial Wastewater Treatment Solution

The pollutants in industrial wastewater and the treatment requirements are closely tied to the production process, which may include oils, heavy metals, high-concentration organics, salts, color, and refractory substances. We design the process and configure the equipment according to the wastewater source, flow, water quality, target pollutants, discharge standards, and reuse requirements. The industrial wastewater treatment solutions cover 50 to 20,000 m³/d, and cover the process design, complete equipment supply, and EPC services. Depending on process requirements, the treatment system can integrate dissolved air flotation systems, clarifiers, chemical dosing systems, sludge dewatering equipment, ultrafiltration systems, and reverse osmosis systems.

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Selecting Treatment Solutions Based on Wastewater Type
Wastewater Type / Typical Industries Primary Pollutants Treatment Focus Recommended Solution
Oily wastewater from petrochemical, oil refining, and machining Petroleum hydrocarbons, emulsified oil, COD, SS, etc. Staged removal of floating oil and emulsified oil Oily wastewater
Electroplating and Metal Surface Treatment Wastewater Cr⁶⁺, Ni, Cu, Zn, cyanide, acids, and alkalis, etc. Segregated Collection, treatment of heavy metals and cyanide Heavy Metal Wastewater
High-Concentration Organic Wastewater from Food, Fermentation, and Pharmaceutical Industries COD, BOD₅, SS, Fats and Oils, Ammonia Nitrogen, etc. Reduction of High Organic Load High-Concentration Organic Wastewater
Fine Chemical, dyeing and printing Wastewater COD, Color, Salinity, and Refractory Substances Improvement of Biodegradability and Advanced Removal Refractory and High-Salinity Wastewater
Integrated industrial park wastewater Mixture of multiple pollutants Segregated pretreatment and shock load control Oily wastewater and high-concentration organic wastewater
    • Treatment Solutions for Oily Industrial Wastewater

      For petrochemical, oil refining, machining, and other industries.

      • Process Flow: Oil separation → Demulsification and adjustment → Dissolved-air flotation → Hydrolysis and acidification → A/O biological treatment → Secondary sedimentation → Filtration
    • Heavy Metal-Containing Wastewater Treatment Solution

      For electroplating, metal surface treatment, and other industries

      • Process Flow: Segregated Collection → Cyanide Removal and Hexavalent Chromium Reduction → Neutralization and Precipitation → Coagulation and Sedimentation → Filtration → Ion Exchange or RO
    • High-Concentration Organic Wastewater Treatment Solution

      For food, fermentation, pharmaceutical, and other industries

      • Process Flow: Bar Screen or Oil Separation → Equalization → UASB or IC Anaerobic → A/O or A²/O → Secondary sedimentation → Coagulation and Advanced Treatment → Disinfection
    • Treatment Solutions for Refractory and High-Salinity Wastewater

      For fine chemicals, dyeing and printing, and other industries

      • Process Flow: Equalization → Coagulation and Sedimentation → Ozone or Fenton Advanced Oxidation → Hydrolysis Acidification → Biological Treatment → Ultrafiltration → Reverse Osmosis → Concentrate Treatment