Hole helicoid
The utility model relates to a hole helicoids which is a novel filling material for waste water and sewage treating apparatus, belonging to the technical field of environmental protection. The utility model is made of polyethylene, polypropylene, polyvinylchloride, or nylon, being of a ripple pipe s...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a hole helicoids which is a novel filling material for waste water and sewage treating apparatus, belonging to the technical field of environmental protection. The utility model is made of polyethylene, polypropylene, polyvinylchloride, or nylon, being of a ripple pipe shape, a pipe wall is composed of a plurality of ripple rings, a plurality of small holes are arranged on each ripple ring, and the small holes on adjacent ripple rings are staggered. The biological film adhered on the surface of the hole helicoid grows fast and stable, the scope of application of water quality and concentration is wide, the COD removal rate in the waste water and the sewage is high, and the management of operational maintenance is convenient. |
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