Notes porous aerator What? (1) fan inlet air filtration devices must have, the best way to use electrostatic dust and other particles suspended in the air content to a minimum. (2) To prevent the oil mist into the air supply system, avoid the use of air mist fan is best to use a centrifugal fan. (3) gas pipeline steel pipe, wall to conduct rigorous anti-corrosion treatment, aeration tanks with a pipe and fittings should be used or UPVC high-strength ABS plastic pipe, steel pipe and plastic pipe connections to set up expansion joints. (4) porous aeration generally uniform in the bottom, and the distance between the wall is greater than 200mm, with pipe spacing 300 ~ 750mm, microporous aerator aeration tank aspect ratio (8 to 16) : 1. (5) the entire pool microporous surface aerator height does not exceed ± 5IIlln, after installation of water poured for verification. When asked to stop gas operation should not exceed 4h, or should emptying sewage tanks, filling people 1 m deep water or secondary sedimentation tank effluent, and a small amount of wind continued aeration.