The surface of the Biochemical Ball has a complicated groove texture. When the water droplets flow through the surface of the biochemical ball, the water droplets will change direction along the groove, enter the groove of the next biochemical ball, and change the direction again. Therefore, the flow of water droplets through the biochemical ball pile will be greatly lengthened, so that the action time of the nitrifying bacteria is also increased. But when it is a large number of water flows, the effect of the channel will not be obvious. In fact, the biochemical ball itself is designed for trickle flow.
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