▎Products Description
Bio Media PE75S for RAS
PE75S Phi 25 by 4 mm radial structure HDPE MBBR carrier with at least 1600 square meters per cubic meter surface area for intensive RAS biofilter design.
PE75S Phi 25 by 4 mm radial structure HDPE MBBR carrier with at least 1600 square meters per cubic meter surface area for intensive RAS biofilter design.
Previous: Bio Media PE79S for RAS and Wastewater
Small Boss
HG/T 5924-2021 National Industry Standard Formulation Unit | ISO 9001 / 14001 / 45001 Certified | 137 National Patents | 320+ Global Projects Delivered | 100+ Countries Served
PE75SMODEL
Φ25×4mmCARRIER SIZE
≥1600m²/m³SURFACE AREA
15%-65%FILL RATIO
Technical Specifications
| Model | PE75S |
| Material | Virgin HDPE High Density Polyethylene |
| Specification | Φ25×4mm |
| Specific Surface Area | ≥1600m²/m³ |
| Specific Gravity | 0.94-0.97g/cm³ |
| Recommended Fill Ratio | 15%-65% |
| BOD Surface Loading | 5-15gBOD₅/(m²·d) |
| Nitrification Surface Loading | 0.5-2.0gNH₃-N/(m²·d) |
| Color | Natural white |
| Service Life | 10 years or longer under normal operation |
| Applicable Process | MBBR biofilters for recirculating aquaculture systems |
| Standard and Management Systems | HG/T 5924-2021 ISO 9001 ISO 14001 ISO 45001 |
| MOQ | 1 cubic meter trial order and 5 cubic meters standard order |
| Origin | Tongxiang Zhejiang China |
Product Advantages
◆
Radial Chamber Structure
The Phi 25 by 4 mm geometry uses radial partitions to create multiple flow paths and protected internal attachment area.
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At Least 1600 Square Meter Surface Area
The documented surface area supports high biomass density calculations for compact RAS biofilters.
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Thin 4 mm Profile
The thin profile increases carrier count per unit bulk volume compared with thicker Phi 25 mm media.
◆
RAS Application Focus
The supplied application data positions PE75S for commercial RAS, high density fish farming, marine systems and filter upgrades.
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Fill Ratio from 15 to 65 Percent
The stated range supports different aquaculture loading levels after hydraulic, screen and mixing checks.
◆
Virgin HDPE Construction
The carrier uses hydrophilic modified virgin HDPE with a specific gravity of 0.94 to 0.97 grams per cubic centimeter.
Application Scenarios
Commercial RAS Aquaculture
The radial Phi 25 by 4 mm structure and documented surface area support compact RAS design when feed load and ammonia targets are known.
High Density Fish Farming
PE75S can be evaluated for higher stocking densities after oxygen transfer alkalinity solids and peak feeding loads are calculated.
Marine Species RAS
The supplied scope includes marine systems. Salinity material compatibility temperature and hydraulic conditions should be checked for the project.
RAS System Upgrade and Expansion
Existing biofilters may be reviewed for PE75S only after screen size mixing capacity available volume and operating load are confirmed.
Application Reference Gallery
The following photographs show real treatment and aquaculture environments relevant to this model category. Final media selection is based on influent data reactor volume target loading and operating conditions.
Why Choose Small Boss
Smallboss R and D From Formula to Performance
Small Boss develops MBBR media through polymer formulation carrier geometry laboratory evaluation and process engineering. Model selection is based on documented carrier parameters together with actual water quality reactor and operating data.
| POLYMER SCIENCE | CARRIER ENGINEERING | PROCESS DESIGN |
|---|---|---|
| hydrophilic HDPE compound with documented density and material specification | Size geometry surface area and retention requirements considered together | Fill ratio reactor volume loading aeration and screens checked for each project |
137
National Patents
National Patents
2
International Patents
International Patents
5 plus
University Partners
University Partners
HG T 5924 Two Zero Two One Industry Standard Setter
Small Boss is a formulation unit of China's HG/T 5924-2021 national industry standard for biofilm carriers, giving buyers a clear technical basis for material quality and performance comparison.
Vertical Integration Full Chain Control
Production is completed in house at a 68000 square meter Tongxiang facility with 122 high speed production lines and 600 plus cubic meters daily output, with no outsourcing for critical carrier manufacturing.
One Stop MBBR Process Service
Small Boss supplies MBBR carriers together with process selection reactor sizing aeration recommendations screen matching packing guidance and project delivery support. Final process performance depends on confirmed influent effluent and operating conditions.
Global Track Record and Technical Support
With 320 plus global projects and customers in 100 plus countries, Small Boss supports reactor sizing, fill ratio calculations, aeration system recommendations and CFD validated mixing designs. Free 1 to 2 kg samples are available for evaluation.
Engineering Selection Guide
This guide uses the supplied model data and identifies the project inputs that must be confirmed before final selection. It avoids unsupported performance comparisons with unspecified competitor media.
| SELECTION ITEM | PE MODEL DATA | PROJECT CHECK |
|---|---|---|
| Biomass area basis | ≥1600m²/m³ | Confirm design load and usable protected surface basis |
| Carrier inventory | 15%-65% | Confirm aeration mixing screen area and freeboard |
| Hydraulic behavior | 0.94-0.97g/cm³ | Confirm circulation through tank geometry or biofilter flow regime |
| Organic loading reference | 5-15gBOD₅/(m²·d) | Verify influent fraction temperature oxygen and target effluent |
| Nitrification loading reference | 0.5-2.0gNH₃-N/(m²·d) | Verify alkalinity dissolved oxygen pH and temperature |
Related MBBR Bio Media
Compare this model with related options or view the complete MBBR bio media range. Final selection should be based on water quality, loading, reactor volume, aeration, mixing and retention screens.
FAQ
◆
What RAS data is required for PE75S selection
Provide daily feed, biomass, temperature, target ammonia, dissolved oxygen, biofilter flow, available volume and existing retention screen details.
◆
What surface area and fill ratio are stated for PE75S
The latest parameter sheet states ≥1600m²/m³ specific surface area and a recommended fill ratio of 15%-65%.
◆
How does PE75S compare with PE79S
Both are Φ25×4mm HDPE media with 15%-65% fill ratios. PE75S states ≥1600m²/m³, while PE79S states ≥1700m²/m³ and uses a different chamber geometry.
◆
Can PE75S be used for a RAS retrofit
It can be evaluated after confirming current biofilter volume, screen retention, flow, mixing, oxygen transfer, head loss and actual feeding load.
Get MBBR Media Selection Support
Send your water quality target and reactor data. Small Boss engineers will help select PE75S or a matched MBBR carrier for your project.
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Previous: Bio Media PE79S for RAS and Wastewater
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