Roots blowers offer the following advantages in water treatment systems:

1. High efficiency: Roots blowers can provide a stable airflow to ensure that the reaction process is carried out efficiently. In wastewater treatment systems, Roots blowers can provide sufficient oxygen for microorganisms to promote the treatment process and improve treatment efficiency.
2. Energy efficiency: Roots blowers consume less energy than traditional mechanically operated blowers. The Roots blower reduces energy waste and wear and tear loss of machine parts through its oil-free, wear-free rotary design, which reduces operating costs.
3. Maintainability: Roots blowers are simple in structure and easy to maintain. There are no parts in contact with the rotating part, and there is no wear and tear on the parts. Maintenance cycles are long and easy to clean and maintain, thus reducing equipment maintenance and replacement costs.
4. Stability: The Roots blower has high working stability. Due to the contactless rotating design, there is no direct friction of the machine parts, so the vibration and noise of the Roots blower are very low, thus ensuring the stability of the water treatment system.

At the same time, there are challenges with Roots blowers in water treatment systems:

1. Noise pollution: Although the vibration and noise of the Roots blower are low, it will make noise during long operation, which affects the living environment and productivity.
2. Power Consumption: Although Roots blowers can save energy and reduce costs, their power consumption is still a problem in larger scale water treatment systems, especially in processes such as air flotation sludge thickening that require large amounts of gas delivery.
3. Operational Durability: While Roots blowers provide reliable airflow support, their operational durability may be compromised if they are not properly maintained and cleaned during use.
4. Safety issues: Special attention needs to be paid to safety issues when operating a Roots blower. Proper operating procedures and standardized safety criteria need to be followed during use and maintenance to avoid any safety issues.

In summary, Roots blowers offer numerous advantages in water treatment systems, but there are also some challenges. To ensure their efficient, reliable and safe operation, they need to be properly operated and maintained.