Biosolids Management


RRM has over 15 years experience working for Local Government and Water Authorities in biosolids reuse, processing and consulting across Australia.

 Our firm specialises in developing local biosolids reuse programs, including:

Direct land application of dewatered cake in agriculture and mine rehabilitation
Alkaline stabilisation of biosolids
Composting and marketing of biosolids products
Development of biosolids management strategies




We have extensive experience in the design of materials handling equipment and alkaline stabilisation processes.  Our services include all aspects of biosolids reuse such as obtaining site approvals, loading, transport and spreading



 Qualified Staff

Our agricultural science staff are experienced in soil testing and site assessment and liaise closely with farmers to ensure biosolids are used in accordance with best practice and state regulations.  This experience ensures a successful outcome is achieved from reuse programs.

Our staff have travelled extensively to study biosolids processing and reuse technologies around the world and we maintain an active role in the Australian Biosolids Industry, participating in national workshops and conferences.

RRM currently manages over 50,000 tonnes
per year of dewatered cake, with land
application programs
in NSW and Queensland.

 Previous projects include:

Engaged to prepare a 25-year Biosolids and Residuals Management Strategy for Sydney Water
Contracted to remove and reuse 25,000 tonnes of dewatered cake in mine rehabilitation and agriculture (Gosford City Council)
Engaged as commissioning manager for the thermal drying and alkaline stabilisation processes at Subiaco STP (Andritz)
Feasibility study for biosolids thermal drying options at Luggage Point STP (Brisbane Water)
International review of Raw Sludge Drying (Sydney Water )
Evaluation of Biosolids Management Options for Black Rock STP (Barwon Water)
Design review of sludge, grit and screenings handling systems at the Subiaco STP

Before Biosolids After Biosolids

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