2800L/d Marine Grey water Treatment Plant

2800L/d Marine Grey water Treatment Plant

Product Introduction:

The 2800L/d Marine MBR Sewage Treatment Plant is an advanced, compact wastewater treatment system designed for ocean‑going vessels, offshore platforms, and coastal ships. Utilizing state‑of‑the‑art Membrane Bioreactor (MBR) technology, this system delivers superior effluent quality that far exceeds conventional biological treatment plants, while handling a daily capacity of 2,800 litres of black water (toilet waste) and grey water (galley, shower, and laundry discharge).

Fully certified to IMO MEPC.227(64) and USCG standards, the system produces treated effluent with BOD₅ below 5 mg/L and TSS below 5 mg/L – making it one of the cleanest discharge solutions available for the marine industry today.

Key Features & Benefits:

1. Advanced MBR Technology

Unlike traditional activated sludge systems that rely on gravity settling, this plant incorporates submerged hollow‑fibre membrane modules (pore size ≤ 0.04 μm) to achieve absolute solid‑liquid separation. The result is crystal‑clear permeate with virtually no suspended solids, regardless of sludge bulking or fluctuating influent quality.

2. Compact Footprint – No Secondary Clarifier

By eliminating the need for a separate settling tank, the MBR system reduces overall plant size by approximately 30‑40% compared to conventional biological systems. The integrated membrane tank, aeration tank, and disinfection chamber fit easily into tight engine room spaces.

3. Fully Automatic PLC Control with Remote Monitoring

Equipped with an industrial‑grade programmable logic controller (PLC) and 7‑inch colour touch screen, the system offers:

*Fully automatic operation with minimal crew intervention.

*Real‑time display of key parameters (pH, DO, MLSS, transmembrane pressure).

*Automatic backwash and chemical cleaning cycles for membrane longevity.

*Alarms and fault diagnostics with remote alarm relay to the wheelhouse or unmanned engine room control centre.

5. Robust Membrane with Long Service Life

The plant uses PVDF (polyvinylidene fluoride) hollow‑fibre membranes, which feature:

Excellent chemical resistance and mechanical strength.

Anti‑fouling surface modification.

Design life of 5‑8 years under normal operating conditions.

Easy in‑place cleaning (CIP) without removing membrane modules.

6. Low Operating & Maintenance Costs

*Despite its advanced technology, the system is designed for economy:

*Low air consumption (energy‑efficient fine‑bubble diffusers).

*Extended sludge retention time (SRT up to 90 days) – significantly reduces waste sludge disposal frequency.

*Membrane cleaning performed automatically, with manual intervention required only every 3‑6 months.

7. Rugged Marine Construction

All tanks and piping are fabricated from marine‑grade stainless steel (SS316L) with fully welded, leak‑proof construction. External surfaces receive heavy‑duty anti‑corrosion coatings, ensuring decades of reliable service in harsh saline environments.

8. Flexible Installation & Easy Retrofit

The system is delivered as a skid‑mounted, pre‑piped and pre‑wired unit. It can be installed as newbuilding equipment or retrofitted into existing vessels with minimal modifications to onboard piping and electrical systems.

Outline Drawing:

System Schematic Diagram:

Technical Specifications:

Applications:

*Cargo vessels – bulk carriers, container ships, tankers.

*Passenger ships – cruise liners, ferries, yachts.

*Offshore units – drilling rigs, FPSOs, accommodation platforms.

*Naval & patrol vessels.

*Luxury superyachts demanding highest effluent quality.