In 2010, the Australian & New Zealand Biosolids Partnership (ANZBP) commissioned a national survey to identify the main features of biosolids management across Australia and New Zealand. The survey was repeated in 2013, 2015, 2017, 2019 and again in 2021. Surveys to 2019, inclusive, catalogued and reported the following primary parameters:• Biosolids production;• Biosolids end use;• Biosolids stabilisation grade;• Biosolids contamination grade; (added in 2013)• Biosolids primary stabilisation process;• Biosolids dewatering process.

This year additional data has been collected to both update the survey in line with current and predicted trends and to obtain data that is anticipated to be useful to ANZBP members and government departments. These data are:

• Biosolids secondary stabilisation processes;• End-use management and branding;• Stockpile volumes;• Transportation of biosolids to end-use site;• Emerging contaminant management;• Renewable energy production.The final reports of the survey are now available for ANZBP members on the Member site of the ANZBP website. If you are an employee of ANZBP partners and need access to ANZBP resources and data, feel free to reach out to ANZBP Program manager.