
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
NENT Landfill, Hong Kong
Ammonia stripping plant upgrade with heat recovery.
2,000 m³/day
Veolia Environmental Services (Hong Kong)
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
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)
WENT Landfill, Hong Kong
Leachate treatment system design and supply, ammonia removal with heat recovery.
1,500 m³/day
SITA Waste Services
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
WENT Landfill, Hong Kong
Expansion of the existing ammonia stripping plant.
2,300 to 3,450 m³/day
SITA Waste Services
Pillar Point Valley Landfill, Hong Kong
Refurbishment of the thermally driven ammonia stripper.
SITA Waste Services
Lantau Island, Hong Kong
Organic waste treatment facility, digester effluent treatment system.
550 m³/day
OSCAR Bioenergy JV
NENT Landfill, Hong Kong
Expansion of the existing ammonia stripping plant.
1,500 to 2,400 m³/day
Far East Landfill Technologies
WENT Landfill, Hong Kong
Upgrade to the ammonia stripping plant.
2,400 m³/day
SITA Waste Services
2005 to 2012
SENT Landfill, Hong Kong
Wastewater treatment system design and supply, ammonia removal with heat recovery.
2,000 m³/day
Green Valley Limited
Pillar Point Valley Landfill, Hong Kong
Combined gas and wastewater treatment plant.
Swire SITA Waste Services
1997 to 2000
Gin Drinkers Bay, Hong Kong
Combined gas and wastewater treatment plant.
Swire BFI Waste Services
NENT Landfill, Hong Kong
Wastewater treatment system design and supply.
1,400 m³/day
Far East Landfill Technology
Tseung Kwan O Landfill, Hong Kong
Wastewater treatment system design and supply.
230 m³/day
Swire BFI Waste Services
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.

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
Find out if OTAR Electric suits your site.
No obligation. We reply within 4 hours. See the track record
