The BZQ spherical crown-shaped expandable microporous aerator is a new type of aeration device developed by our unit based on the process characteristics of biological wastewater treatment, building upon the original diaphragm-type micro-aerator. The overall structure of the aerator is scientifically rational, with advanced technology and innovative design. The microporous aerator and its support tray feature a unique spherical crown-shaped structure. This aerator offers excellent anti-clogging and anti-backflow performance. Under intermittent operating conditions, sludge is less likely to deposit on the aeration membrane surface, resulting in a longer service life compared to flat diaphragm-type microporous aerators, higher oxygen transfer efficiency, and suitability for the biological treatment of slightly polluted source water.

Features:
　　 Excellent anti-clogging and anti-backflow performance. The aerator adopts a spherical crown shape, making it resistant to sludge accumulation on its surface even in complex water quality conditions or intermittent operation. The membrane perforation technology is uniquely advanced, featuring diagonal slit cuts. Additionally, a special-shaped sealing ring is installed at the top center to more effectively prevent water backflow. High tear resistance of the membrane. The rubber membrane is spherical crown-shaped, ensuring uniform stress distribution during operation when the pores open, reducing fatigue deformation, offering good resilience, resistance to tearing, and a long service life. Uniform air distribution, energy-saving, and high efficiency. The working surface area of the spherical crown-shaped aerator is relatively larger compared to flat types, producing small bubbles, ensuring uniform air distribution, high oxygen transfer efficiency, and effective treatment. This characteristic is maintained even at low airflow rates, facilitating easy operation and management. Aging resistance and corrosion resistance. The spherical crown-shaped aeration membrane is made of high-quality rubber, while the support tray and threaded connectors are engineering plastics. These materials exhibit excellent physical and mechanical properties, superior aging resistance, and resistance to chemical corrosion from acids, alkalis, and other agents. Low pressure loss. Due to the unique anti-clogging and anti-backflow performance of the aerator, the check valve required for flat microporous aerators is eliminated, thereby reducing the aerator's resistance and saving energy consumption.

Structure and Working Principle:
　　 The spherical crown-shaped microporous aerator mainly consists of an aeration membrane, support tray, spiral pressure cover, and threaded connector. Simply sleeve the rubber membrane onto the support tray and tighten it with the spiral pressure cover.