Phosphorus binding clay
Healthy Estuaries WA is investigating the effectiveness of a newly developed clay that binds phosphorus making it unavailable for algae growth.
As part of the project, scientists are running several trials across the Peel-Harvey and Vasse-Wonnerup catchments in parallel with detailed laboratory testing. Trials in the Vasse-Wonnerup catchment are being carried out in partnership with Revitalising Geographe Waterways.
The aim is to:
- improve the clay manufacturing process
- investigate the effectiveness of clay treatment in different environments
- undertake a detailed risk assessment for large-scale clay application.
Trials have been completed in:
- Cox Bay North Lake – February and March 2024, November 2024 to February 2025
- Gull Road Drain – September 2023
- Lower Serpentine River – March 2020
- Punrak Drain – 2017
- Lower Vasse River – 2016-2018
Other projects
- Better collaborative drainage management
- Booiyup - Centennial Park Wetland
- Brockman Park
- Capacity building
- Catchment modelling
- Catchment monitoring and condition
- Dairy for Healthy Estuaries
- DairyCare
- Estuary modelling
- Estuary monitoring and condition
- Fencing and revegetation
- Fertiliser management program
- Investment planning for catchment actions
- River health assessments
- Seagrass monitoring
- Soil amendments
- Soil Wise
- uPtake
- Urban garden fertiliser use in Leschenault Catchment
- Yakamia Creek Rehabilitation
- Z-Filter trial