Moving Bed Bio Film Type Cord Braided Fillers
What it is :
Bio filter is a man-made bio-reactor, drain off management using microbe activity to prevent water pollution in oceans, rivers, lakes, and marshes. In appearance, Bio-filter is a simple cord covered with countless rings of thread, made of polymers such as polypropylene, vinylon, polyvinylidene-chloride, binylon or nylon-polyester . Its unique properties thus provide a symbiotic culture bed for a wide spectrum of microbes.
How it works :
When Bio-filter is manufactured, it leaves the factory with a slightly positive charge. Placed in water, it attracts microbes, which by nature have a slightly negative charge. The structure of the Bio filter also attracts the microbes. Because of this, Bio-filter is the choice media for microorganisms to live and grow on. The microbes adhere to the threads and perform biodegradation. This is done in a three-step process including an anaerobic step for optimum solids removal (instantaneous breakdown).

Features and Benefits :
- Does not require frequent cleaning due to the cords' ability to cast off accumulated solids via gravity while maintaining activity; resulting in water treatment that is more stable.
- A properly designed system is 100% environmentally friendly.
- The Bio-filter system can be included in the design of new or retrofitted to existing recirculation systems; this flexibility allows for site specific applications.
- Increased amount of surface areas holds a large quantity of microorganisms per unit length compared to other bio-filter media; therefore less area is taken up by the bio-filter.
- Inexpensive to operate and maintain. A four million gallon unit requires only a total of 30-hp and 2 hours per day of attention to ensure operational parameters. Due to the high solids removal, settling ponds lagoons do not have to be cleaned out as often.
- 97% nitrogen and 98% solids removal with right chemistry.
- By reducing the solids, you reduce the BOD (biological oxygen demand) therefore less oxygen is required, also lowers phosphorus and nitrogen levels.
- Other advantages include: reduced odor and make up flow is decreased.
- In fish applications it provides food for microbiological feeders as well as a substrate for eggs sacs (when deployed directly in the water column)
- Effective in high sludge applications, up to 10% TSS (total suspended solids) such as fish farm settling ponds, hog lagoons.
- Bio-filter is lightweight and void fraction is large therefore installation and maintenance is easy.
Typical Bio-filter Usage:
- Public filtering plants - Office buildings, schools, homes, towns, etc.
- Public institutions - Highway service areas, parks, surface water drainage ponds, landscaping/golf course ponds, etc.
- Food factories - Breweries, fisheries, dairies, snack foods, etc.
- Public eating places - Restaurants, hotels, fast-food shops, etc.
- Deodorizing machines - Food factories, waste treatment plants, etc.
- Waste filtering systems - Homes, apartments, etc.
- Recycling water plants - Homes, buildings, factories, etc.
- Factory recycling water - Cooling/filtering systems.
- Swimming pools - Filtering and elimination of NH3N.
- Cleaning rivers and lakes - Expedite elimination of Nitrogen and Phosphorus.
- Pre-treatment of drinking water - Cleaning the water supply.
- Farming/Ranching - Manure lagoons, etc.
- Fisheries/Aquariums - Freshwater / salt water recycling systems, sludge pits, settling ponds.
- Aquaculture industry - Hatcheries, nurseries, ponds, specific sites, etc