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Track record

Ammonia removal delivered at landfill sites since 1998.

Organics has designed, built and expanded ammonia stripping plants across Hong Kong's landfills for more than two decades, alongside gas, biogas and waste-to-energy projects on five continents.

Between the first and latest ammonia plant, 1998 to 2024
26 years
Average design flow across the 13 plants with a listed flow
1,800 m³/day
Capacity added at WENT in 2016, from 2,300 to 3,450 m³/day
+50%
Design flow used on five of the 16 plants
2,000 m³/day

Ammonia recovery, project by project.

The same stripper-column technology behind OTAR Electric, delivered at Hong Kong's landfills and expanded as flows grew.

2021 to 2024

2024

NENT Landfill, Hong Kong

Ammonia stripping plant upgrade with heat recovery.

2,000 m³/day

Veolia Environmental Services (Hong Kong)

2022

NENT Landfill Extension, Hong Kong

Wastewater treatment system design and supply, ammonia removal with heat recovery.

2,000 m³/day

Veolia Environmental Services (Hong Kong)

2017 to 2020

2019

NENT Landfill, Hong Kong

Leachate treatment system design and supply, ammonia removal with heat recovery.

1,500 m³/day

SUEZ NWS R&R (Hong Kong)

2019

WENT Landfill, Hong Kong

Leachate treatment system design and supply, ammonia removal with heat recovery.

1,500 m³/day

SITA Waste Services

2018

SENT Landfill Extension, Hong Kong

Wastewater treatment system design and supply, ammonia removal with heat recovery.

2,000 m³/day

Green Valley Limited

2013 to 2016

2016

WENT Landfill, Hong Kong

Expansion of the existing ammonia stripping plant.

2,300 to 3,450 m³/day

SITA Waste Services

2016

Pillar Point Valley Landfill, Hong Kong

Refurbishment of the thermally driven ammonia stripper.

SITA Waste Services

2015

Lantau Island, Hong Kong

Organic waste treatment facility, digester effluent treatment system.

550 m³/day

OSCAR Bioenergy JV

2014

NENT Landfill, Hong Kong

Expansion of the existing ammonia stripping plant.

1,500 to 2,400 m³/day

Far East Landfill Technologies

2013

WENT Landfill, Hong Kong

Upgrade to the ammonia stripping plant.

2,400 m³/day

SITA Waste Services

2005 to 2012

2012

SENT Landfill, Hong Kong

Wastewater treatment system design and supply, ammonia removal with heat recovery.

2,000 m³/day

Green Valley Limited

2006

Pillar Point Valley Landfill, Hong Kong

Combined gas and wastewater treatment plant.

Swire SITA Waste Services

1997 to 2000

1999

Gin Drinkers Bay, Hong Kong

Combined gas and wastewater treatment plant.

Swire BFI Waste Services

1999

NENT Landfill, Hong Kong

Wastewater treatment system design and supply.

1,400 m³/day

Far East Landfill Technology

1998

Tseung Kwan O Landfill, Hong Kong

Wastewater treatment system design and supply.

230 m³/day

Swire BFI Waste Services

1998

WENT Landfill, Hong Kong

Wastewater treatment system design and supply.

2,000 m³/day

Swire BFI Waste Services

And a wider record behind it.

  • Landfill gas control

    Enclosed and elevated flares, mobile flares and gas collection networks for landfills in the UK, Ireland, Europe, Asia, the Americas, Africa and Australasia.

  • Biogas and waste-to-energy

    Turnkey anaerobic digesters and biogas feed trains for palm oil mill effluent and cassava waste in Indonesia and Thailand, many CDM-registered.

  • Gas conditioning

    Biological H2S scrubbers for biogas, including three plants for Indonesian palm oil mills in 2025, and a biomethane compression plant in 2026.

  • Thermal conversion

    Pyrolysis systems for clinical waste, sewage screenings and refuse-derived fuel in the UK, Chile and the Middle East.

Worldwide support

Plant that stays supported long after it is installed.

Organics works through agents and representatives in many countries, and represents itself directly where it has not yet found the right partner. The principle is always the same: installed plant and equipment is technically supported, with a full range of service and support options for the end user.

Two Organics representatives in front of a stripping plant display at a conference

Every market has its own rules. The UK measures emissions as a concentration, the USA as a mass flow rate set against power ratings, and Hong Kong applies compliance rigorously. Organics adapts each solution to the standards of the country it is built for.

  • Local or directAgents and representatives, or Organics directly
  • Regional officeBangkok, covering the Far East, China, Australia and New Zealand
  • Built to local rulesSolutions matched to each country's emissions standards

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