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ANZBP Advisory Committee

The Australian & New Zealand Biosolids Partnership, or ANZBP has been created to promote and support the sustainable management of biosolids in Australia and New Zealand.

The ANZBP operates as a program within the Australian Water Association (AWA), collecting separate partner contributions to specifically support the mission of the ANZBP. Key stakeholders include water utilities in Australia and New Zealand which produce and manage biosolids, consultants and contractors involved in biosolids management, agencies responsible for regulating the management and use of biosolids, research organisations and universities, and end-users of biosolids and their representative groups.

The ANZBP has a corporate model whereby organisations from around Australia and New Zealand contribute partnership funds and all their employees are able to take advantage of member benefits.

The ANZBP is guided by an Advisory Committee comprising of a cross-section of stakeholders, which reports to the AWA Board. Current members of the Advisory Committee are:

Kelly Hopewell (Chair)

Gold Coast Water and Waste

Kelly Hopewell is the Coordinator of Process Engineering at the Gold Coast Water and Waste and has been in the water industry for over 15 years.  Starting out in drinking water quality while working as a research assistant at Griffith University, she had a steep learning curve in the field of wastewater treatment once moving the Gold Coast Water in 2005.  Kelly and her team are responsible for working with the operators to optimise the Gold Coast’s four sewage treatment plants, endeavouring to reduce chemical, electricity and biosolids haulage costs, while maintaining a high quality effluent. Kelly has a passion for biosolids and finding innovative ways to manage this potential resource.

Nirmala Dinesh

SA Water

Nirmala is an Environmental engineer with a Ph.D. and over 20 years’ experience in the water industry focussed on wastewater treatment and reuse, sludge treatment and handling. She has extensive experience in all aspects of strategic planning of wastewater, recycled water, sludge and biosolids management, process optimisation, commissioning services and energy optimisation& benchmarking. She is the biosolids discipline leader in SA Water and provides strategic input to planning of sludge treatment and biosolids management across 25 WWTPs. She has been instrumental in the development and promotion of composting of biosolids from Metro and Country WWTPs in SA as an alternate beneficial reuse option.

Rob Tinholt

Watercare, Auckland, New Zealand

Rob is Watercare’s Resource Recovery Manager with a primary focus on creating beneficial reuse pathways for Auckland’s biosolids. He is developing products through his understanding of technology and the soil needs of end markets. He has over 20 years experience as a wastewater engineer and has been responsible for the planning, construction and operation of many wastewater assets. Rob also has delivered successful outcomes in complex resource consent applications for significant discharges to the environment, requiring an understanding of statutory planning frameworks and consultation with stakeholders and Iwi. His approach is to create a collaborative environment to achieve sustainable and economic outcomes.

Peter Marczan

NSW Environment Protection Authority

Peter has over 20 years’ experience in water pollution, urban water management and water quality. He is a chemical engineer and has spent most of his career working in environmental regulation. Peter is currently Manager Water and Noise Policy at the NSW Environment Protection Authority and leads a multidisciplinary team that is responsible for providing expert support to EPA regional officers on water and noise pollution, carrying out reform of policy and guidance, legislative projects and identifying and addressing emerging issues. He was previously responsible for implementation of the NSW Biosolids Guidelines.

Derek Van Rys

Sydney Water

Derek is currently Wastewater & Residuals Improvement Manager within the Treatment business in Sydney Water. He has a small team that look to introducing new technology and driving improvements in the wastewater and biosolids processes at Sydney Water. Prior to that he was the Residuals Manager that looked after Biosolids reuse contracts.

After joining Sydney Water over 20 years ago he has worked in operations at many of the treatment plants in Sydney Water. He has been a plant manager at four plants before moving into the technical roles mentioned above. He was a AWA Biosolids Committee member from 2012 till 2014.

He has an BE in Chemical Engineering and a MEngSc in Industrial Management both from UNSW.

Bill Wood


Bill has an early background in agriculture, a Doctorate in Marine Science and has spent over 30 years in marine research, industrial management, and in consultancy. Bill joined the Tasmanian Water Corporation in 2009 and currently is responsible for the development of the State biosolids strategy and management program at TasWater. Bill is interested in applying innovative approaches to all aspects of biosolids management, in particular lagoon processes, biosolids recovery and handling and in the marketing and the beneficial end use of this valuable by-product of the wastewater industry.

Glenn Dale


Glenn is the founder and Managing Director of Verterra Ecological Engineering, Adjunct Associate Professor with the University of Southern Queensland, and a founding member of Foresters without Borders management committee.  Glenn holds degrees in forestry and biochemistry, an MBA and PhD in Molecular & Quantitative Genetics.  Glenn has over 32 years’ experience in natural resource management and ecological engineering, with broad international experience including New Zealand, China, USA, England, Spain, Portugal, Malaysia, Colombia, Brazil, Tanzania and Rwanda.  Glenn has particular expertise in plant water use, plant nutrition, degraded land and mine site rehabilitation, soil conservation, carbon sequestration and erosion management relevant to beneficial use of biosolids as a valuable nutrition and soil conditioning product.


Frances Rutledge

Hunter Water

For the last 10 years Frances has worked in the wastewater planning division of Hunter Water leading the development of a great variety of strategic projects from biosolids management, wet weather overflow abatement, upgrade strategies for WWTWs to business wide strategies such as sustainability and greenhouse gas abatement. As the technical lead on biosolids, Frances provides strategic input on biosolids management to the Sustainable Wastewater Strategy project and other WWTW projects.

Peter Donaghy

Queensland Urban Utilities

Peter has over 16 years’ experience at senior management and senior professional levels in operations and business management roles in the water and wastewater industry. As General Manager – Treatment & Environmental Management at Queensland Urban Utilities, Peter is accountable for the safe, reliable and efficient operation of 27 wastewater treatment plants and 22 recycled water schemes to protect the assets, people, environment and quality of water for downstream use. He has led the development of a performance driven culture to identify and capitalise on commercial opportunities and elevate customer service.