Comet-shaped fiber bundle structure, homogeneous graded deep bed behaviour, backwash characteristics, D-type filter applications — with parameters confirmed per filter model.
← Back to Comet Fiber Filter MediaComet fiber filter media is a deep-bed filtration material in which fiber is bundled into a comet shape: a compact, denser nucleus at one end and a loose fibrous tail at the other. Because the nucleus is the heavier and tighter part of the element, a charged filter bed settles with the nuclei first and the tails last. The result is a single bed whose pore structure changes with depth — fine pores in the nucleus layer, progressively more open channels through the fibrous layer.
This graded structure separates comet fiber media from conventional depth media. Instead of trapping solids in the top few centimetres of the bed, the media holds suspended solids and oil through the full bed depth, which keeps the head loss rise slower and makes the run length between backwashes longer. The material is specified for D-type filters and for duties where filtration and oil removal have to be handled together.
Public industry literature describes comet-shaped fiber media as a high-efficiency water filtration material developed in China and applied in waterworks, industrial water supply, oily wastewater and circulating water systems. The description below follows that general published account.
Each element consists of fiber gathered into a bundle and bound so that one end forms a compact nucleus and the remainder spreads into a soft, loose tail. The fiber is flexible and stays spread out in water, so the tail does not collapse into a mat but keeps the open, fibrous structure that gives the media its dirt-holding capacity.
Packed together, the nuclei align into a dense layer and the tails fill a looser layer above and around them. The bed therefore behaves as a homogeneous filter bed with a graded pore distribution rather than a uniformly sized granular bed, so particles of different sizes are captured at different depths.
Because solids penetrate the bed rather than loading the surface, the media keeps filtration rate and effluent quality stable for longer, and the bed approaches a more even accumulation of solids along its depth — the condition that makes a deep bed both high-rate and reusable.
The fibers are free to move in the water, so reverse flow lifts and loosens the bed across its whole depth instead of channeling through it. Captured solids and oil are released quickly, which is the basis of the high-efficiency backwash performance the media is specified for. The backwash cycle that achieves this — rate, duration and whether air scouring is required — follows the D-type filter design and is confirmed with the order.
| Parameter | Value |
|---|---|
| Product type | Comet-shaped fiber filter media |
| Media geometry | Fiber bundle with compact nucleus and loose fibrous tail |
| Filter design | D-type filter |
| Filtration mode | Homogeneous graded deep bed |
| Fiber material | On request |
| Nominal size / bundle length | On request |
| Apparent density | On request |
| Design bed depth | On request |
| Filtration rate | On request |
| Backwash water consumption | On request |
| Effluent quality (turbidity / oil) | On request |
| Service life | On request |
| Matching retaining plate | 330 × 497 × 23 mm — prevents media loss |
| Packing | On request |
| MOQ / price | On request — confirm filter model, bed volume & destination |
Parameters marked On request are confirmed against the specific D-type filter model and duty before quotation — filtration rate, bed depth and backwash data follow the filter design, not a catalogue default.
Supply is quoted against the filter model and bed volume: type and quantity of media, the matching retaining plate, and export packing confirmed per order.
Compiled from public product literature on comet-shaped fiber filter media and D-type filtration, together with the manufacturer's internal product data. The structural description and filtration behaviour above are general accounts of this media type.
Numeric parameters for the specific product are not published on this page: they depend on the filter model, bed volume and duty and are marked On request. Prices are quoted on request only. Actual parameters and packing are confirmed in the quotation.