Sewage Treatment Plant 25 PE — Biological aerobic, IMO MEPC.227(64)
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Product Description
Generic STP-25PE-BA Three-chamber biological aerobic sewage treatment plant for crew and passenger black + grey water.
Technical Specifications
- Capacity
- 25 persons (population equivalent)
- Type
- biological aerobic sewage treatment plant
- Hydraulic load
- 5.63 m³/d (at 225 L per person per day)
- Organic load
- 1.35 kg BOD5/d (at 54 g BOD5 per person per day)
- Vessel
- 316L stainless / GRP composite
- Air blower
- roots-type, 0.75 to 11 kW (PE-dependent), IE3
- Disinfection
- UV-C 254 nm low-pressure amalgam (MBR) or sodium-hypo dosing (aerobic)
- Effluent quality
- per MEPC.227(64) Annex Resolution Section 4.2
- Control
- PLC, HMI, BMS-link via Modbus RTU
- Electrical
- 440 V 3-phase, IP55, marine ambient -10 to +55 °C
- Noise
- < 70 dB(A) at 1 m
Standards & Compliance
- Material
- 316L stainless / GRP composite
- HS Code
- 8421.21
Compatibility & Fitment
Form-fit envelope of Hamworthy Super Trident ST / Wärtsilä HMX MBR, Hyundai-Hatenboer HSTP, RWO ORCA / NCB MA-Sb-BIO, DVZ-Services SKA, Evac MBR, Headhunter Tidalwave, Jowa BIO and Detegasa BioMardes. Skid-base bolts match the standard 8-bolt rectangular footprint per the Hamworthy ST series.
Product Documentation
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Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy STP-25PE-BA?
- STP-25PE-BA can be ordered from cballast.com: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this product?
- The manufacturer part number is STP-25PE-BA.
- What is the HS code for STP-25PE-BA?
- The customs tariff (HS) code for STP-25PE-BA is 8421.21.
- Is a datasheet available for STP-25PE-BA?
- Yes — the STP-25PE-BA datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for STP-25PE-BA?
- The minimum order quantity is 1.
- Is STP-25PE-BA available?
- Yes — STP-25PE-BA is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
- How do I get a price for STP-25PE-BA?
- Request a quotation with the quote button on this page or by email to sales@cballast.com — we reply within 24 hours with price, availability and lead time.