Maintaining proper dissolved oxygen (DO) levels is critical for efficient biological wastewater treatment.

Why DO Matters

• Aerobic bacteria need oxygen to degrade organics
• Insufficient DO causes sludge bulking
• Excess DO wastes energy

Optimal DO Levels

• Conventional aeration: 2 mg/L
• Extended aeration: 1-1.5 mg/L
• Nitrification: 2-3 mg/L

Control Methods

Variable speed blowers, aeration control systems, and online DO sensors.

Contact for DO Equipment

Email: sale@yixingenviroequipment.com