Melbourne Water Biosolids Case Study – Quantitative Risk Assessment

Following the presentation on Quantitative Risk Assessment from Daryl Stevens (PhD) (Atura), Philip Wilkie (Melbourne Water), Nick O’Connor (Ecos Environmental Consulting) in ANZBP September Biosolids Lunch&Learn Webinar.

The Australian & New Zealand Biosolids Partnership has released a Case Study report: Biosolids Case Study – Quantitative Risk Assessment.

The QRA was developed by Melbourne Water with international peer-review from the Imperial College London. The QRA analyses potential pathways of chemicals/contaminants found within wastewater from the wastewater treatment process through to the end-use of biosolids. 

The QRA provides valuable data to Melbourne Water for biosolids land application.

Download Case Study report

ANZBP Advisory Committee openings

Apply to join the ANZBP Advisory Committee

Nominations for the current openings on the ANZBP Advisory Committee will close on 31 July and applicants will be notified of the outcome by 31 August 2021. Applications will be considered in August for successful applicants to begin on the Committee in September 2021. Please make sure you get your nominations in by 31 August.

The ANZBP Advisory Committee meets approximately quarterly to guide the activities of the ANZBP. The Committee meets by teleconference or in-person. In-person meetings will usually correspond with a Biosolids Roadshow or the National Conference, and remote participation options are always available.

Find out more and apply.

For more information please contact the ANZBP program manager. 

Request for quote open: Biosolids production and end-use survey for Australia and New Zealand 2020 – 2021

The ANZBP is seeking quotes for the development of an accurate and comprehensive data-set of Biosolids Production and End-Use for Australia and New Zealand for 2020-2021, and to present this data in an easy-to-understand format suitable for publication to a broad audience of ANZBP subscribers.

The deadline for submissions is 30 June 2021.

Download the Request for Quote document

For more information please contact the ANZBP program manager. 

Community Attitudes to Biosolids Survey – Public Report Released

The Australian & New Zealand Biosolids partnership, an industry program of the Australian Water Association, has released a public report based on a survey conducted by Newgate Research of over 1200 people in Australia and New Zealand.  

Survey topics in the publicly available report include awareness and understanding of biosolids as a by-product of wastewater treatment, and the most acceptable uses for these by-products according to community sentiment. The survey also tested the effect of information about biosolids on community attitudes. The full report available to ANZBP program subscribers contains detailed results of this part of the survey. 

Subscribers to the ANZBP program support industry-wide initiatives like the Community Attitudes to Biosolids Survey. For more information or to subscribe contact the ANZBP program manager. 

COVID-19 and Biosolids

The ANZBP Chair and Committee have synthesised available research material to develop a factsheet on COVID-19 and biosolids. 

Indications are that while the virus may be detectable in faeces in small quantities, if the virus was to arrive at a treatment plant in a viable state (which has not been demonstrated) it would be readily destroyed by the treatment methodologies already in place to manage other pathogens.

Biosolids and Microplastics

In light of international interest in the possibility of microplastics contamination of agricultural land and waterways via the application of biosolids, the ANZBP have been working on a preliminary assessment of the risk of this emerging contaminant in the Australian and New Zealand context.

We have made available a preliminary report and a factsheet on this topic. 

The ANZBP supports the reduction of plastic use in consumer products, particularly those that may end up in the sewer system such as clothing fabrics, and substitution of plastics in consumer products with sustainable alternatives.

Download Factsheet

Download Preliminary Report

About our Partnership

The Australian & New Zealand Biosolids Partnership (ANZBP) is a member based collaboration of utilities, consultants, academics and government bodies committed to the sustainable management of biosolids. Formed in 2007 as a self-funded program of the Australian Water Association, the ANZBP has over the years developed a diverse range of research products and tools to support the objectives of our members and to further the development of the sector as a whole. These materials are all available via this site, some available to all, others accessible by members only.

The ANZBP has developed this site to provide interested parties with factual information about biosolids, how they are produced, what is in them, how they might be used, their benefits and potential risks associated with their use. The ANZBP believes biosolids are a valuable product, and this website provides information that supports the application of biosolids to land and other appropriate uses.

If you are an Australian or New Zealand producer, processor, transporter or user of biosolids, or a consultant working in these areas, you can join the Partnership.


Our members’ only site offers a rich and diverse array of research and support materials to partnership members, ranging from technical research on odour, carbon and chemical contaminants through to communication and media tools to support community engagement.

Our most recent publications include:

  • 2020 Community Attitudes to Biosolids Survey
  • 2020 Biosolids Production and Use 2009-2019 Data Consolidation Report
  • Biosolids Production and Use data 2018-2019
  • Assessment of Emergent Contaminants in Biosolids (Chemicals of Concern Report) 2017


Member access is available to all staff of our subscribing partners. Please check your eligibility here and contact us for access if you work for one of our partners.


Our public resources are freely available to enable all stakeholders in biosolids production and use to gain more insight into the processes that create biosolids and ensure their safe use in our communities. These include: