Can a Roots blower be used for aeration? Key selection and alternative solutions**
**Keywords: Is it okay to use Roots blower for aeration**
**1、 Feasibility analysis of Roots blower**
**Sure, but the following conditions must be met:
1. Pressure requirement ≤ 1.2 bar;
2. The factory has low requirements for noise control;
3. Limited budget (the price of Roots blower is about one-third of that of maglev).
**2、 Common Misconceptions**
-Misconception 1: "Roots blower consumes high power" → In reality, its energy efficiency is better than some centrifugal fans under high pressure conditions;
-Misconception 2: "Easy to damage" → With proper maintenance, the fault interval can exceed 8000 hours.
**3、 Comparison of alternative solutions**
|Fan type | Pressure range | Energy efficiency | Noise | Cost|
|-----------|----------|------|------|------|
|Roots blower | 0.1-1.2 bar | Medium | High | Low|
|Magnetic levitation fan | 0.2-1.0 bar | High | Low | High|
|Rotary fan | 0.1-0.5bar | Medium | Medium | Medium|
**4、 User case**
A municipal sewage treatment plant originally used Roots blowers, but later replaced them with magnetic levitation due to noise issues. However, the initial investment increased by 2 times, and long-term benefits need to be balanced.
