Project Overview

• Case Type: Water Treatment
• Application: Metallurgical Wastewater Treatment
• Equipment Used: Online pH Transmitter, Electromagnetic Flowmeter

Project Advantages

Characteristics of Metallurgical Wastewater

Metallurgical wastewater mainly comes from drainage of circulating cooling systems and rainwater. It typically features large fluctuations in water volume and water quality. The pollutants are mainly inorganic, combined with small amounts of organic substances, resulting in poor biodegradability. The wastewater usually has high total hardness and alkalinity and contains small traces of floating oil. To achieve energy saving and emission reduction, many plants now collect comprehensive wastewater for centralized treatment and reuse as process water.

Limitations of Traditional Treatment Methods

Conventional processes such as coagulation–sedimentation–filtration mainly remove turbidity and temporary hardness but fail to effectively reduce dissolved organic matter. As a result:

• COD remains high in the treated water;
• Membrane systems (UF/RO) face organic fouling, shortening membrane lifespan;
• Deep water reuse becomes limited.

Improved Solution: MBBR Technology

The MBBR (Moving Bed Biofilm Reactor) process combines the strengths of biofilm and activated sludge systems. It offers strong resistance to shock loads, long sludge age, reduced excess sludge, and high treatment efficiency, making it ideal for low-concentration organic wastewater.

With Sinomeasure's online pH transmitters and electromagnetic flowmeters, the system delivers:

• Real-time water quality monitoring for stable operation;
• Accurate flow measurement for optimizing dosing and process control.

Conclusion

Metallurgical wastewater is characterized by large volumes, diverse categories, and highly variable water quality. Selecting an appropriate treatment process requires a thorough evaluation of the water characteristics and discharge standards. Sinomeasure instruments have been widely adopted in metallurgical wastewater projects, ensuring stable operation and supporting water reuse and sustainable production.