Application and selection of aeration head and Roots blower for sewage treatment
The aeration head and Roots blower in sewage treatment each play important roles, and they have specific considerations in their application and selection.
Application and selection of aeration head
1、 Application:
1. The aeration head is an important component of the sewage treatment aeration system, which increases the dissolved oxygen content in the sewage by introducing bubbles, promotes the growth of microorganisms and the decomposition of substances, thereby achieving the goal of purifying water quality.
2. The aeration head can effectively transfer oxygen from the air to the water, based on the double membrane theory, which refers to the mass transfer process between the gas film and the liquid film. In order to overcome liquid film barriers, aeration heads are usually designed to generate a large number of tiny bubbles, increasing the contact area and time between bubbles and liquid.
2、 Selection:
1. Oxygen utilization rate: Choose an aeration head with high oxygen utilization rate and power efficiency to save energy consumption and improve treatment efficiency.
2. Structural type: Select the appropriate type of aeration head based on the characteristics of the sewage treatment process and aeration tank, such as rocker type microporous aerator, fixed dynamic aerator, etc.
3. Material and durability: Considering the quality of wastewater and the corrosion resistance of the aeration head, select suitable materials to ensure the long-term stable operation of the aeration head.
Application and selection of Roots blower
1、 Application:
1. Roots blower is mainly used in sewage treatment for aeration process, continuously blowing air into the aeration tank to provide dissolved oxygen required by microorganisms.
2. Roots blower has the characteristics of simple structure, convenient manufacturing, and stable operation, and is suitable for gas transportation and pressurization systems in low-pressure environments.
2、 Selection:
1. Air volume and pressure: Determine the required air volume and pressure based on the requirements of the sewage treatment process. The air volume represents the volume of air delivered by the fan per unit time, while the air pressure represents the pressure that the fan can generate. When selecting, it should be ensured that the air volume and pressure of the selected fan meet or slightly exceed the actual requirements.
2. Model and Structure: Choose the appropriate model and structure based on the usage scenario and requirements, such as SR type. Different models of Roots blowers have differences in pressure, flow rate, stability, and other aspects.
3. Material and sealing performance: As the water quality in sewage treatment may contain corrosive substances, corrosion-resistant materials and appropriate sealing forms should be selected to ensure the long-term stable operation of the fan.
4. Energy efficiency and conservation: Choosing fan models with high energy efficiency and good energy-saving effects can help reduce operating costs and environmental burdens.
5. Manufacturers and Services: Choose manufacturers with good reputation and service for purchase and technical guidance to ensure that the selection and use of fans meet actual needs, and receive timely and effective maintenance and upkeep during use.
In summary, multiple factors need to be considered in the application and selection of aeration heads and Roots blowers in sewage treatment to ensure the stable operation and treatment effectiveness of the system. By selecting, installing, and regularly maintaining these devices, the sewage treatment process can be optimized, treatment efficiency can be improved, and operating costs can be reduced.
