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DC 38 For sekundærbehandling av avløpsvann fra masse- og papirindustrien
Select suitable MBBR media, such as DC 38. High-quality media should possess characteristics such as a large specific surface area, light weight and corrosion resistance, to ensure uniform air-water mixing; the air flow rate and aeration method should be adjusted appropriately.
Tekniske beskrivelser
How can biofilm blockages and agglomeration of MBBR media be addressed in a biochemical reactor?
Select suitable MBBR media, such as DC 38. High-quality media should possess characteristics such as a large specific surface area, light weight and corrosion resistance, to ensure uniform air-water mixing; the air flow rate and aeration method should be adjusted appropriately.
DC 38 For sekundærbehandling av avløpsvann fra masse- og papirindustrien
38-hulls vertikale stripeformede fremspringende MBBR-medier er en høyeffektiv biofilmbærer konstruert for balansert ytelse i kommunal og industriell avløpsrensing. Den optimaliserte geometrien har 38 strategisk fordelte gjennomgående hull kombinert med aksialt justerte vertikale hevede striper, noe som skaper turbulente strømningsmønstre som forbedrer masseoverføring samtidig som de beskytter biomasse mot skjærkrefter. Dette mediet er produsert av UV-stabilisert høydensitetspolyetylen (HDPE), og leverer et beskyttet overflateareal på ≥800 m²/m³ med eksepsjonelt tomrom (>95 %) for å forhindre tilstopping. De stripete fremspringene skaper mikrohabitater for robust biofilmutvikling, noe som gjør det ideelt for BOD-fjerning, nitrifikasjon og denitrifikasjonsprosesser i MBBR-, IFAS- og hybridreaktorsystemer.
How can the problem of an effective biofilm failing to form for a prolonged period after the addition of packing material, resulting in poor treatment performance, be resolved?
Use hydrophilic-modified DC 38 HDPE media to accelerate biofilm formation; maintain the pH within 7.0–8.5; control dissolved oxygen (DO) at 3–4 mg/L during the initial biofilm formation stage; alternate 15 minutes of aeration with 5 minutes of rest to prevent high-intensity aeration from dislodging the early biofilm; and start with a COD load of ≤0.5 kg/(m³·d), increasing it by 20 per cent every three days.
Etterspør et sitatWhy choose the DC 38 for industrial and domestic wastewater treatment?
1. Høyt spesifikt overflateareal
With a specific surface area of more than 800 m²/m³, DC 38 provides abundant attachment space for microorganisms, helping increase the effective biomass in the biological reactor.
2. 38-Hole Biofilm Protection Structure
The 38-hole cylindrical structure provides multiple internal channels and external surfaces for biofilm growth. These protected channels help microorganisms attach more stably and reduce biomass loss caused by aeration or hydraulic scouring.
3. Effektiv masseoverføringsytelse
The porous, open structure of DC 38 facilitates thorough contact between wastewater, dissolved oxygen, and the biofilm, allowing oxygen and pollutants to penetrate the biofilm more effectively, thereby improving the efficiency of organic matter degradation and ammonia nitrogen removal.
4. Utmerket fluidiseringseffekt
DC 38 has a density of 0.94–0.97 g/cm³, which is close to that of water. When aerated or propelled by water flow, the packing material remains well suspended and fluidized in the reaction tank, making it unlikely to settle at the bottom of the tank, which helps improve packing utilization and system operational stability.
5. Laget av 100 % hvit jomfruelig HDPE
The DC 38 is made from 100% virgin white HDPE material and offers excellent chemical stability, corrosion resistance, and weather resistance, making it suitable for long-term use in municipal sewage and industrial wastewater treatment systems.
6. Lang levetid
The DC 38 has a service life of up to 15 years, which reduces the frequency of media replacement and lowers the long-term operating and maintenance costs of wastewater treatment systems.
7. Fleksibelt fyllingsforhold
The DC 38 has a packing density range of 15%–70% and can be flexibly designed to accommodate different water qualities, organic loads, tank volumes, and effluent requirements, making it suitable for wastewater treatment projects of various scales.
8. Egnet for fjerning av COD, BOD og ammoniakk-nitrogen
DC 38 provides a stable attachment environment for heterotrophic bacteria and nitrifying bacteria. It is suitable for COD and BOD degradation as well as ammonia nitrogen removal in wastewater treatment, helping to improve the system’s biochemical treatment efficiency.
9. Suitable for High-Load Wastewater Treatment
Because DC 38 has a high specific surface area and a 38-pore structure, it can increase microbial concentration within a limited tank volume, making it suitable for wastewater treatment projects with high loads and stable effluent quality requirements.
10. Egnet for MBBR- og IFAS-oppgradering
DC 38 can be added to existing biological treatment tanks to increase the microbial concentration and treatment capacity within the system. It is suitable for new MBBR systems, upgrading and retrofitting of existing wastewater treatment plants, and IFAS process upgrade projects.
Tekniske spesifikasjoner
| Parameter | Spesifikasjon | Enhet | Merknader |
| Modell | 38-hulls MBBR-bærer | - | Geometri i bransjestandard |
| Materiale | Polyetylen med høy tetthet (HDPE) | - | UV-stabilisert, næringsmiddelgodkjent |
| FARGE | hvit | - | standard |
| Form | Sylindrisk med 38 interne tverrkanaler | - | Optimalisert flyt og biofilmbeskyttelse |
| Diameter (Ø) | 25 | mm | Nominell størrelse |
| Høyde (H) | 10 | mm | - |
| Spesifikt overflateareal | >800 m²/m³ | ||
| Individuell medietetthet | 0.94-0.97 | g / cm³ | |
| Service liv | > 15 | år |
Typical Applications of DC 38
DC 38 is suitable for biological wastewater treatment systems requiring stable biofilm growth, efficient organic matter removal and ammonia-nitrogen control.
Typiske bruksområder inkluderer:
● Kommunale avløpsrenseanlegg
● Renseanlegg for husholdningsavløp
● Industrielle avløpsrensesystemer
● Avløpsrensing av mat og drikke
● Kjemisk avløpsrensing
● Trykking og farging av avløpsrensing
● Avløpsrensing av masse og papir
● Avløpsrensing fra slakteri
● Behandling av sigevann fra deponier
● Avløpsrensing av hoteller, feriesteder og lokalsamfunn
● Avløpsrensing av skoler, sykehus og industriparker
● Desentraliserte avløpsrensesystemer
● MBBR biologiske behandlingssystemer
● Oppgradering av IFAS-prosessen
● Utvidelse av kapasiteten til eksisterende avløpsrenseanlegg
● COD-, BOD- og ammoniakk-nitrogenfjerningssystemer
How to address the issue of media breaking down after several years of operation, with fragments entering subsequent treatment units
Select high-quality HDPE media manufactured by Decycle, with a compressive strength of ≥25 N per particle and an outdoor service life of ≥15 years. Carry out regular inspections to check for media wear and tear, replacing 10–20 per cent of the old media annually whilst mixing new and old media together. Any damaged media should be retrieved and removed promptly upon discovery.
Etterspør et sitatOfte Stilte Spørsmål
Q: Er du et handelsselskap eller produsent?
A: Vi er fabrikken.
Spørsmål: Hvor lenge er leveringstiden din?
A: Vanligvis er det 10–20 dager hvis varene er på lager, eller 30–45 dager hvis varene ikke er på lager, det avhenger av mengde.
Q: Tilbyr dere prøver? Er det gratis eller ekstra?
A: Ja, vi kan tilby prøven gratis, det er leveringskostnader som må betales av kjøperen.
Spørsmål: Hva er dine betalingsvilkår?
A: T/TL/C.
