Shallow media filter, circulating water side filter, also known as side filter sand cylinder, high-speed filter sand cylinder. It uses quartz sand as the filter medium. Under a certain pressure, it filters water with high turbidity through a certain thickness of granular or non-granular quartz sand, effectively intercepting and removing suspended matter, organic matter, colloidal particles, microorganisms, chlorine, odor and some heavy metal ions in the water, so as to reduce turbidity and purify water quality.
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