HDPE MBBR Biofilm Carrier Media 25 x 12 mm for Wastewater Treatment RFQ
Buyer-facing sourcing profile for HDPE MBBR filter media used as suspended biofilm carrier media in wastewater and aquaculture treatment systems. Overseas buyers should verify polymer material, size tolerance, density, surface area, porosity, packing volume, export documents, and whether the supplier can provide batch-level quality documentation before RFQ placement.
Quick buying facts
Identify the grade, package, and import market before comparing suppliers.
Use this page to check the product identity, common specification points, document scope, package notes, and destination-market questions before sending a China sourcing request.
Material: supplier page states HDPE in title, while basic info also lists PP; buyer should confirm final polymer type before orderingWater treatment media / HDPE MBBR biofilm carrierCandidate for RFQ after polymer, specification, and export document verification
Material: supplier page states HDPE in title, while basic info also lists PP; buyer should confirm final polymer type before ordering
Nominal size requested: 25 x 12 mm; supplier table also lists 25 x 7-12 mm variant
Density: 0.94-0.97 g/cm3 for most listed sizes; one listed variant shows 1.02-1.05 g/cm3
Specific surface area: for 25 x 7-12 mm listed as >500 m2/m3; other sizes listed from >800 to >3500 m2/m3
Void ratio / porosity: listed as >85% or >90% depending on size
Dosing ratio: listed range approximately 15-65% or 15-70% depending on model
Membrane-forming time: listed as 3-15 days under stated operating conditions
Applicable temperature: listed as 5-60 °C
Listed performance references: nitrification efficiency 400-1200 g NH4-N/m3.d; BOD5 oxidation 2000-10000 g BOD5/m3.d; COD oxidation 2000-15000 g COD/m3.d
Service life: supplier page states >15 years; buyer should request test basis and warranty terms
Who uses this page
Target buyers
Wastewater treatment plant EPC contractors
Municipal sewage treatment project buyers
Industrial wastewater treatment integrators
Aquaculture filtration system suppliers
Koi pond and recirculating aquaculture system equipment buyers
Water treatment media distributors
Environmental engineering procurement teams
Before matching
Documents to check
CAS number, grade, assay, and impurity profile
SDS, COA, TDS, HS code, and transport classification
Destination-market import documents before supplier matching
Package and route
Packing notes
Supplier page lists usual package as 0.1 CBM per bag and transport package as 0.1 m3 or 1 m3 woven bag
Container loading reference from extracted specs: 20GP about 30 m3, 40GP about 60 m3, 40HQ about 70 m3
Confirm whether packing is compressed or loose-fill, and whether volume is measured by bag nominal volume or actual loaded media volume
Request bag material, bag dimensions, palletization option, container loading photos, and net media volume per bag
Confirm sample availability, sample size, courier terms, and whether sample matches production mold and polymer grade
Applications and sourcing options
Check whether this product fits the buyer's actual application.
Clear application, grade, package, and document notes help separate real sourcing demand from a vague price check.
Use context
Common applications
MBBR biological treatment tanks
Sewage treatment plant upgrade projects
Industrial wastewater biofilm treatment systems
Aquaculture and recirculating water filtration systems
Koi pond biofilter media replacement
Decentralized wastewater treatment units
How we compare
Sourcing options
25 x 12 mm HDPE or PP MBBR media, subject to material confirmation
Alternative sizes listed by supplier: 12 x 9 mm, 11 x 7 mm, 10 x 7 mm, 16 x 10 mm, 25 x 7-12 mm, 25 x 4 mm, 5 x 10 mm, 15 x 15 mm
White standard color or custom color if supplier supports batch production
0.1 m3 woven bag packing or 1 m3 woven bag packing
Sample order before container-volume RFQ
Full-container procurement: 20GP, 40GP, or 40HQ based on media volume requirement
Human review
Compliance notes
This item is a formed plastic water-treatment media rather than a single chemical reagent; CAS may not apply to the finished article, but buyers should request polymer resin identification and SDS or material declaration where required by destination customs
Confirm whether product is HDPE, PP, or another polymer blend, as source text contains inconsistent material references
Request HS code confirmation; supplier page lists HS Code 84219990, but importer should verify with local customs broker
Request non-DG confirmation for sea/air transport if applicable; formed HDPE/PP media is typically not shipped as dangerous goods, but classification should be documented by supplier or freight forwarder
Ask for COA or QC report covering dimensions, density, surface area method, porosity, moisture/contamination, appearance, and batch traceability
For municipal or regulated water projects, request third-party test reports, material safety documentation, and any project-specific acceptance documents required by the buyer’s jurisdiction
No regulatory approval, treatment performance, or compliance outcome should be assumed from supplier listing claims alone
Buyer search paths
Related sourcing terms
These terms support long-tail discovery while keeping the page focused on useful product and China export buying context.
HDPE MBBR media supplierMBBR biofilm carriermoving bed biofilm reactor mediawastewater treatment filter mediaplastic biofilter mediaaquaculture bio media25x12mm MBBR carriersewage treatment mediaHDPE water treatment mediaMBBR media bulk supplier
Related product options
Build a broader quote package from adjacent options.
Buyers often compare neighboring grades, forms, or route options before sending one consolidated RFQ.
Share target market, quantity, packaging scope, artwork status, delivery destination, and required documents so CHN Chemicals can prepare a cleaner supplier comparison.
Questions to confirm
Can you confirm the exact material for the 25 x 12 mm media: HDPE, PP, or modified polymer blend?
What is the current production mold size and tolerance for diameter, height, wall thickness, and aperture structure?
Can you provide a batch COA or QC report for density, surface area, porosity, and dimensional tolerance?
What testing method is used to calculate specific surface area and void ratio?
Is the media virgin resin, recycled resin, or blended resin? Can you provide resin source and material declaration?
Can you provide SDS, non-DG statement, HS code basis, commercial invoice, packing list, certificate of origin, and export customs documents?
What is the exact packing: 0.1 m3 bag, 1 m3 bag, palletized or non-palletized, and loading volume per 20GP/40GP/40HQ?
Can you provide pre-shipment photos or video of bag markings, container loading, and random dimensional inspection?
Checks before quote
This item is a formed plastic water-treatment media rather than a single chemical reagent; CAS may not apply to the finished article, but buyers should request polymer resin identification and SDS or material declaration where required by destination customs
Confirm whether product is HDPE, PP, or another polymer blend, as source text contains inconsistent material references
Request HS code confirmation; supplier page lists HS Code 84219990, but importer should verify with local customs broker
Request non-DG confirmation for sea/air transport if applicable; formed HDPE/PP media is typically not shipped as dangerous goods, but classification should be documented by supplier or freight forwarder
Ask for COA or QC report covering dimensions, density, surface area method, porosity, moisture/contamination, appearance, and batch traceability
For municipal or regulated water projects, request third-party test reports, material safety documentation, and any project-specific acceptance documents required by the buyer’s jurisdiction
No regulatory approval, treatment performance, or compliance outcome should be assumed from supplier listing claims alone
Next step
Send the product page with your target quantity and market. A sourcing manager can then confirm sample options, supplier fit, packaging details, and open document gaps.
