Our Solutions for Waste Management

  • Industrial Communication Box

    GSM box

  • Continuous Data Analytics

    LFC Cloud

  • Filtered Pump System

    WEP effluent system

  • Automatic Food Waste Digester

    LFC biodigester

About the LFC biodigester for ships

The LFC® biodigester is a commercial aerobic biodigester that decomposes food wastes within 24 hours. It uses a series of processes in which micro­organisms break down biodegradable material in the presence of oxygen. The output is grey water that can be pumped directly overboard or treated by the vessel sewage treatment plant.

Using Power Knot’s LFC biodigesters on ships ensures that organic waste can be safely disposed of with no possibility of plastics entering the ocean. With hundreds of machines deployed across cruise ships, cargo ships, FSRUs, tankers, and mega yachts, Power Knot Ocean brings nine years of experience to solving problems of organic waste on vessels while meeting MARPOL regulations.

Pulper Replacement

Replace antiquated pulpers easily with simple drop-in installation

Prevent Plastic Pollution

Designed to prevent accidental plastics from entering waste streams

MARPOL Compliance

Fully certified and in compliance with MARPOL regulations

Organic Solution

Natural digestive process that uses fully organic media and solution

Remote Data Analytics

View statistics on usage, diagnostics, and service schedules remotely with the LFC Cloud

How It Works

The LCD biodigester uses a series of processes in which micro­organisms break down organic materials in the presence of oxygen.

Organic Waste

Organic waste is segregated from other types of waste and placed into the LFC biodigester.

Microorganisms

A special blend of microorganisms from Powerzymes are housed in Powerchips.

Oxygen

Paddles in the LFC biodigester turn to add oxygen and begin aerobic digestion.

Digestion

Microorganisms eat the food waste and convert it into water.

Output

Discharged into waste stream.

Prevent Plastic Pollution with the LFC biodigester

The mechanical design of the biodigesters ensures that organic waste can be safely disposed of with no possibility of plastics entering the ocean.

If any non-organic material ends up in the biodigester, it is not digested by the microorganisms. Multiple levels of protection such as metal grates and filters prevent the plastics from contaminating the waste stream. The plastics remain safely in the machine until removed by the operator.

The result output is grey water free from contaminated microplastics that can be pumped directly overboard or treated by the vessel sewage treatment plant.

Latest News

  • March 26, 2025

    MS Mitsui Ocean Fuji Seat Sails with Power Knot LFC Biodigesters

    Image by Ivan T FREMONT, CA — Power Knot Ocean,...

  • March 24, 2025

    Power Knot Ocean Delivers LFC Biodigester for MS Seaventure

    Power Knot Ocean has announced the installation of an LFC-200...

  • June 19, 2024

    Carnival Corporation & plc Honored with Environment Leader Award for Food Waste Management Initiatives

    Power Knot Ocean announced today that Carnival Corporation & plc...

  • March 1, 2024

    Princess Cruises Installs Innovative Food Waste Biodigesters Onboard New Flagship: Sun Princess

    Power Knot Ocean has successfully deployed 26 of the LFC...

  • September 8, 2023

    Polarstern reaches North Pole with the LFC biodigester onboard to support research activities

    The German research vessel RV Polarstern has again reached the North Pole today. It left…

  • January 9, 2023

    Nearly 600 biodigesters deployed across cruise fleet

    In June 2022, Holland America’s Corp. Fleet Environmental Compliance Manager,...

Customers at Sea

  • August 31, 2023

    Golar LNG Goes Green

    The Golar Freeze FSRU pioneered sustainable maritime waste management by...

  • August 28, 2022

    Newrest Chile uses biodigester for mining food waste management

    Newrest Chile, a catering company, supplemented their client’s mining operations...

  • July 19, 2022

    Denali Princess Wilderness Lodge Preserves National Park with LFC biodigester

    Denali Princess Wilderness Lodge, a hotel subsidiary of Princess Cruise,...

  • May 20, 2022

    Just B superyachts sets sail for sustainability with food waste digester

    In early 2021, luxury superyacht Just B purchased and commissioned...

  • Power Knot engineer teaching staff at Carnival Corp how to use the LFC biodigester.
    April 14, 2022

    Carnival Cruise uses LFC biodigester for food waste solution onboard

    Carnival Corporation & plc, an international cruise line, reduced food...

  • July 27, 2021

    Tanker Golar Freeze keeps oceans free from waste with LFC Biodigester

    In 2019, the Golar Freeze was stationed in Jamaica and...