A blue sign with the word phoslock on it

Restoration of impaired water bodies by the application of Phoslock

"We seek to improve water quality across the globe."

Phoslock Water Solutions (UK) Ltd and Phoslock Europe GmbH are wholly owned subsidiaries of Phoslock Environmental Technologies (PET) of Sydney, Australia.

PET is the manufacturer and intellectual property owner of Phoslock, a geo-engineered phosphorus-binding clay material developed by the Commonwealth Scientific Research Organisation (CSIRO) of Australia, in the nineties. 

"We seek to improve water quality across the globe."

Phoslock Water Solutions (UK) Ltd and Phoslock Europe GmbH are wholly owned subsidiaries of Phoslock Environmental Technologies (PET) of Sydney, Australia.

PET is the manufacturer and intellectual property owner of Phoslock, a geo-engineered phosphorus-binding clay material developed by the Commonwealth Scientific Research Organisation (CSIRO) of Australia, in the nineties. 

A yellow tractor is towing a boat in the water.

What is Phoslock?

Phoslock was developed in Australia by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) to remove phosphates from water. The active element in Phoslock is lanthanum (a rare-earth element) which has a strong affinity to bind with phosphate. 

A large body of water surrounded by trees and mountains on a sunny day.

Case Studies

Phoslock has been successfully applied to over 300 water bodies around the world.

Here you will find a selection of detailed case studies containing descriptions of the projects accompanied by images and videos.

A yellow tractor is towing a boat in the water.

What is Phoslock?

Phoslock was developed in Australia by the Commonwealth Scientific and Industrial Research Organisation (CSIRO) to remove phosphates from water. The active element in Phoslock is lanthanum (a rare-earth element) which has a strong affinity to bind with phosphate. 

A large body of water surrounded by trees and mountains on a sunny day.

Case Studies

Phoslock has been successfully applied to over 300 water bodies around the world.

Here you will find a selection of detailed case studies containing descriptions of the projects accompanied by images and videos.

A yellow tractor is towing a boat in the water.

Useful documents & publications

A series of guidance and help sheets including a list of publications & links

A large body of water surrounded by trees and mountains on a sunny day.

Environmental Certifications

A seal that says tested and validated under industry standards

US and Canadian NSF/ANSI 60 Drinking Water certification

The logo for the chinese research academy of environmental sciences

Chinese Research Academy of Environmental Sciences (CRAES) Certification

A shelf full of binders with one that says ' a ' on it

Useful documents & publications

A series of guidance and help sheets including a list of publications & links

A wooden dock is sitting in the middle of a lake surrounded by trees.

Environmental Certifications

A seal that says tested and validated under industry standards

US and Canadian NSF/ANSI 60 Drinking Water certification

The logo for the chinese research academy of environmental sciences

Chinese Research Academy of Environmental Sciences (CRAES) Certification

A white background with a few lines on it

LATEST NEWS

A bag of Phoslock is sitting on top of a stump in front of a lake.

Comprehensive Solutions for Healthy Lakes: Managing Nutrients with F4ST & Phoslock®

by Damian Whelan • 19 March 2025
Maintaining water quality starts with understanding nutrient inputs. F4ST delivers data-driven lake management, while Phoslock® tackles excess phosphorus at its source. Together, they provide a sustainable, long-term solution for balanced, beautiful lakes. Learn more today!
A wooden dock overlooking a lake with trees in the background

The Current Status of UK Freshwater and Its Decline Over the Last Five Years

by Damian Whelan • 13 March 2025
The UK's freshwater ecosystems—rivers, lakes, and wetlands—are in crisis. Pollution, biodiversity loss, and failing ecological standards persist despite government efforts. With minimal progress over five years, urgent action is needed to prevent further environmental decline. Can we turn the tide?

Phoslock: The Safe and Sustainable Solution for Restoring Water Quality

by Damian Whelan • 9 December 2024
By targeting excess phosphorus—the primary driver of water quality degradation—Phoslock provides a long-term remedy for restoring water bodies
Show More News

We have carried out over 300 water treatment projects all over Europe and across the world

For more information about the Phoslock treatment or to start a conversation about treating your lake, reservoir or canal, please get in touch. Where appropriate, we will forward your request to a local licensed distributor.

A blue map of europe on a white background

We have carried out over 300 water treatment projects all over Europe and across the world

For more information about the Phoslock treatment or to start a conversation about treating your lake, reservoir or canal, please get in touch. Where appropriate, we will forward your request to a local licensed distributor.

A blue map of europe on a white background
A white background with a few lines on it