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Kunshan Pinhong EPT Co.,Ltd
Kunshan Pinhong EPT Co.,Ltd
Add : (Qiandeng Yuanchuang Base) No. 125, Jinxing South Road, Qiandeng Town, Kunshan, Jiangsu, China
Tel : （0086）15995617314
Fax : +86-512-50130524
E-mail :lvfang@ksphxs.com
There are: micro-holes (disk and tube), jet, swirl (single nozzle and double nozzle), divergent flow (vortex mixing), surface exposure.
The principle of the microporous aerator is to squeeze the air, escape from the micropores of the rubber diaphragm, and form tiny bubbles to diffuse into the water. The oxygen utilization rate in 6 meters of clean water can reach more than 30%. But it is easy to be blocked and damaged, and the service life is short. After the microporous aerator is used for a certain period of time, due to fouling and clogging, the wind pressure and energy consumption will increase. After damage, the oxygen utilization rate will drop sharply, and it needs to be replaced in time.
The principle of the jet aerator is that the circulating water sucks in air, mixes it in the cavity, and sprays it along the direction of the nozzle. It is an earlier aeration process applied to industrial wastewater and has the advantages of large service area and not easy to block. The oxygen utilization rate of 6 meters of water is about 15%-21%. Due to the need for an additional circulating water pump, the energy consumption is high. In calcium-containing wastewater, nozzles are prone to fouling and clogging.
The principle of the cyclone aerator is the high-speed jet of air flow, which is cut by the mushroom head to form tiny bubbles after being mixed with the sewage in the tank, and at the same time, a negative pressure is formed to suck the sludge at the bottom of the pool. Swirl is a new type of aeration process that has emerged in recent years. The oxygen utilization rate of 6 meters of fresh water is about 18%-25%. Because it can be installed without stopping production, it is not easy to be blocked, the service life is more than ten years, and the energy consumption is moderate. In recent years, it has been widely used in the field of industrial wastewater.
Diffuse aeration, inverted umbrella shape, oxygen utilization rate is about 8%-12%. The principle is similar to the swirling flow, and the air flow hits the saw teeth to cut, but due to the scattered air flow, weak impact, weak cutting force, large bubbles, low oxygen utilization, high energy consumption, and no stirring, it is used less and less.
The surface is exposed. Due to the centrifugal jet and lifting effect of the impeller, the water is continuously thrown to the water surface in the form of a water curtain, thereby bringing in air; it is suitable for shallow oxidation ditch ponds, and the aeration effect is not good when the water is deep. With the shortage of land and the increase in water depth, the surface exposure used in new projects is becoming less and less.