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Wärtsilä relaunches STC0-23 sewage treatment plant, the smallest Super Trident series design to-date

Wärtsilä Corporation, Trade press release 29 February 2024 at 10:30 UTC+2
  • STC0-23 sewage treatment plant

Wärtsilä Water & Waste, part of technology group Wärtsilä, has relaunched the STC0-23 sewage treatment plant, part of its trusted series of Super Trident technologies.

The relaunch sees several improvements to STC0-23, including the smallest and most compact design of any Wärtsilä Water & Waste sewage treatment plant. The technology works seamlessly with both gravity and vacuum waste collection systems and utilises an activated sludge system to speed up natural biological processes.

STC0-23 uses chemical chlorination and dechlorination to ensure that effluent is clean and safe to discharge overboard. This gives owners and operators full assurance that they are meeting their compliance requirements for protection of the marine environment. The new and improved Super Trident Plant has also seen several other specification upgrades, including the ability to be disassembled into two separate tanks for flexibility during installation.

For over forty years, the Hamworthy Super Trident range of sewage treatment systems has been widely regarded as the standard specification for wastewater treatment on all types of vessels. The technology has been recognised for its ability to provide safe and cost-effective waste disposal at sea, whilst ensuring oceans are protected and all relevant regulations are met for shipowners and operators.

The relaunched plant mixes the best of this historical track record and prestige with Wärtsilä Water & Waste’s engineering expertise and technical knowledge. Overall, the company has designed STC0-23 to minimise maintenance requirements and continue to ensure that the plant is suitable for a wide range of vessels across the global fleet.

Cathy Stephenson, Managing Director of Wärtsilä Water & Waste, says: “We are proud to be able to relaunch our STC0-23 sewage treatment plant to market today, after a gap of more than thirteen years. We are excited to see the market’s reaction to this new era for STC0-23, as we work together with our customers to ensure they can operate smoothly and meet their compliance obligations.”

Media contact for more information on this release:

Roberta Dina
Brand Marketing Manager
Wärtsilä Water & Waste
Tel. +44 07443 359 271

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Wärtsilä Portfolio Business in brief
Wärtsilä Portfolio Business units are run independently to accelerate performance improvement and unlock value through divestments or other strategic alternatives.
Wärtsilä Water & Waste, part of Wärtsilä Portfolio Business, offers the widest portfolio of environmental solutions that meet all existing and anticipated regulations, including regulations for environmentally sensitive areas. We support our customers with a complete lifecycle offering to ensure the highest operational efficiency, compliance and enhanced environmental performance. Wärtsilä Water & Waste has developed a broad range of specialized and proven environmental products, such as Wastewater treatment (conventional biological sewage treatment plants and advanced membrane bioreactors), Ballast water management systems, Fresh Water generation (reverse osmosis plants and evaporators) and Vacuum toilets and vacuum collecting systems.

Wärtsilä in brief
Wärtsilä is a global leader in innovative technologies and lifecycle solutions for the marine and energy markets. We emphasise innovation in sustainable technology and services to help our customers continuously improve environmental and economic performance. Our dedicated and passionate team of 17,800 professionals in more than 280 locations in 79 countries shape the decarbonisation transformation of our industries across the globe. In 2023, Wärtsilä’s net sales totalled EUR 6.0 billion. Wärtsilä is listed on Nasdaq Helsinki.

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Wärtsilä Australia Pty Ltd.
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Huntingwood NSW 2148
Tel: +61 2 9672 8200
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