Juntai Hydrophilic Polyurethane (HPU) bio-fillers are an innovative type of biological carrier, engineered from modified polymer polyurethane materials. Their structure integrates both macropores and micropores: the macropores ensure stable gas-liquid-solid conditions, while the micropores are designed for efficient microbial adsorption and immobilization.
These micropores contain hydrophilic groups-including amino, carboxyl, and epoxy groups-which enable the HPU MBBR media to rapidly absorb water, expand, and settle. The same functional groups promote quick attachment and fixation of microorganisms and enzymes.
With a density higher than water, the HPU bio-media settles swiftly and accommodates a high microbial load, delivering greater volumetric treatment capacity compared to conventional surface-area-dependent carriers. The carrier's architecture enhances mixing and contact between wastewater, air, and biofilm, enabling rapid microorganism colonization while sustaining high biological activity and adaptability.
During operation, the moving HPU media effectively shear air bubbles into finer sizes under three-phase fluid motion, increasing oxygen transfer efficiency and lowering aeration demand.
Thanks to these features, HPU bio-fillers provide strong bubble-cutting capability, high space utilization, and a biofilm environment free of dead zones-making them a high-performance solution for modern biological wastewater treatment.

4pcs HPU MBBR floating in the medium of the water
●Good hydrophilicity
●Large surface area
●Good treatment effect
HPU MBBR Bio Media will expand when it is exposed to water, and the expansion coefficient is about 1.7 times

| Item | Unit | Reference data | Mark |
| Material | Polyurethane | PU | |
| Specification | mm | 30*30*30 | |
| Packing method | 20kgs/cbm 5bags/cbm |
Dry compression packaging |
|
| Surface Area | m2/m3 | >3400 | |
| Packing Method | 13kgs/cbm 2bags/cbm |
Dry compression packaging |
|
| Porosity | % | 96 | |
| Proportion | % | 15~30 | |
| Biofilm Time | day | 5~30 | |
| NH3-N | gNH3-N/m3*d | 600~1300 | |
| BOD5 | gBOD5/m3*d | 1000~5000 | |
| COD | k | 1000~7500 | |
| Use PH | 6~10 | ||
| Temperature | 1~50 | ||
| Life-span | More than 5 years, add 5% every year after 3 years |

When used in aerobic tank ,we can use HPU MBBR media without Bio ball, it is good at Flu fluidi ,And because it is very light MBBR, it is less power than other Media.
When used in Anaerobic tank, there is no gas in the tank, then the HPU media will easy floating on the surface of the tank, it is better to use it with bio ball.
And then we can put one piece of vesuvianite together 3 to 6 pcs of HPU MBBR in the bio ball, then make use the ball in the middle of the water, not floating on the surface of the water








