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Water Treatment
Sarjaro have designed, manufactured, commissioned and operated multiple soil, sludge and water treatment plants tailored for significant remediation projects across Australia. The team have successfully treated over 1 Billion litres of PFAS contaminated water, over 1 Billion litres of gasworks contaminated water and over 1 Million litres of leachate at ecologically and community sensitive locations.
SMA Burleigh to Palm Beach M1 Upgrade
Sarjaro were engaged by SMA to provide water management solutions for this project. The contract involved the design, construction, mobilisation, setup, commissioning, operation and maintenance of two (2) bespoke multi-barrier water treatment plants to manage contaminated groundwater and surface water to enable irrigation reuse on site in accordance with the PFAS National Environmental Management Plan (NEMP) on the Burleigh to Palm Beach (B2PB) M1 upgrade. Groundwater on the project was contaminated with Per and Polyfluoroalkyl Substances (PFAS), metals nutrients and hydrocarbons due to the proximity of a Southern Gold Coast Sewerage Treatment Plant.
The B2PB project required provision of scalable storage solutions for untreated and treated water to accommodate changing dewatering requirements due to various construction activities, weather and tidal events. A portable, interconnected, and modular tank farm consisting of up to 25 x 80,000 litre tanks totalling a 2 Megalitre storage capacity provided the project with certainty to ensure uninterrupted construction dewatering activities and onsite reuse of treated water to meet regulatory compliance. Water treatment solution had to be failsafe as the site is adjacent to Tallebudgera Creek a sensitive marine ecosystem and project activities were highly
scrutinised by Queensland Department of Transport and Main Roads (TMR) and Queensland Department of Environment and Science (DES)
The B2PB project required provision of scalable storage solutions for untreated and treated water to accommodate changing dewatering requirements due to various construction activities, weather and tidal events. A portable, interconnected, and modular tank farm consisting of up to 25 x 80,000 litre tanks totalling a 2 Megalitre storage capacity provided the project with certainty to ensure uninterrupted construction dewatering activities and onsite reuse of treated water to meet regulatory compliance. Water treatment solution had to be failsafe as the site is adjacent to Tallebudgera Creek a sensitive marine ecosystem and project activities were highly
scrutinised by Queensland Department of Transport and Main Roads (TMR) and Queensland Department of Environment and Science (DES)
North Queensland Mid-Term Refresh (NQMTR) - PFAS Water Treatment
CPB Contractors Pty Ltd were appointed as the Managing Contractor to deliver the NQMTR program of works for the Australian Government's Department of Defence. The NQMTR project involves maintenance and upgrades at RAAF Base Townsville, the Townsville Field Training Area and HMAS Cairns, including new and upgraded engineering services, building refurbishment works, and additional accommodation. As part of the works, CPB Contractors selected Sarjaro as the water treatment subcontractor to treat contaminated water extracted from the ground during various NQMTR Civil Works projects at RAAF Base Townsville and HMAS Cairns.
Sarjaro were able to mobilise onsite quickly with pre-designed and fabricated WTPs to ensure there were no delays in the works program. The WTPs included a number of treatment technologies including:
- Lamella Plate Separator (required for the works as it was evident that a lot of sludge and silt would be delivered to the plant in combination with water)
- Zeolite Filtration
- 4 x different types of Granular Activated Carbon (GAC) Filtration
Sarjaro found that using the combination of granular activated carbons in this sequence provides a fail-safe to remove all chain-lengths of PFAS during both continuous treatment and batch-style treatment regimes.
Sarjaro were able to mobilise onsite quickly with pre-designed and fabricated WTPs to ensure there were no delays in the works program. The WTPs included a number of treatment technologies including:
- Lamella Plate Separator (required for the works as it was evident that a lot of sludge and silt would be delivered to the plant in combination with water)
- Zeolite Filtration
- 4 x different types of Granular Activated Carbon (GAC) Filtration
Sarjaro found that using the combination of granular activated carbons in this sequence provides a fail-safe to remove all chain-lengths of PFAS during both continuous treatment and batch-style treatment regimes.
Remediation of Former Paper Mill
Sarjaro were engaged by a confidential client to provide water treatment solutions for this project. The contract involved the design, construction, mobilisation, setup, commissioning, operation and maintenance of three (3) bespoke multi-barrier water treatment plants to manage contaminated groundwater, surface water and landfill leachate.
Following the acquisition of the 200-hectare Paper Mill Site in 2015 by the Moreton Bay Regional Council, Sarjaro were engaged by our client to design, manufacture, install, commission, operate and maintain multiple different capacities bespoke multi barrier water treatment plants to assist with remediation of soil, groundwater, surface water and other sediments. This phase required Two (2) up to 2.5 l/sec WTPs to treat pond water and One (1) up to 2.5 l/sec WTP to treat landfill leachate. The multi-barrier treatment process was tailored for efficient and safe removal of 60 pollutants including multiple Per and Polyfluoroalkyl Substances (PFAS), metals and hydrocarbons. Adhering to strict regulatory limits and stringent discharge requirements of the Queensland Department of Environment and Science (DES), Sarjaro's WTP enabled direct discharge into the North Pine River and adjacent Moreton Bay Marine Park in accordance with Environmental Authority (EA) EPPR00500613.
Other responsibilities included provision of scientific technical services to support our client in meetings with QLD DES to design an industry best practice plant, demonstrate proof of performance and support discharge regulation with commercially realistic, practical and sustainable environmental outcomes.
Following the acquisition of the 200-hectare Paper Mill Site in 2015 by the Moreton Bay Regional Council, Sarjaro were engaged by our client to design, manufacture, install, commission, operate and maintain multiple different capacities bespoke multi barrier water treatment plants to assist with remediation of soil, groundwater, surface water and other sediments. This phase required Two (2) up to 2.5 l/sec WTPs to treat pond water and One (1) up to 2.5 l/sec WTP to treat landfill leachate. The multi-barrier treatment process was tailored for efficient and safe removal of 60 pollutants including multiple Per and Polyfluoroalkyl Substances (PFAS), metals and hydrocarbons. Adhering to strict regulatory limits and stringent discharge requirements of the Queensland Department of Environment and Science (DES), Sarjaro's WTP enabled direct discharge into the North Pine River and adjacent Moreton Bay Marine Park in accordance with Environmental Authority (EA) EPPR00500613.
Other responsibilities included provision of scientific technical services to support our client in meetings with QLD DES to design an industry best practice plant, demonstrate proof of performance and support discharge regulation with commercially realistic, practical and sustainable environmental outcomes.
Townsville Connection Road - PFAS Passive Barrier Treatment
Sarjaro were engaged by Albem / SGQ Joint Venture (ASJV) to provide PFAS contaminated water management solutions for the surface water runoff encountered on the Townsville Connections Road Project for Transport and Main Roads (TMR) . The contract involved the design, construction, mobilisation, setup, and sale of a bespoke PFAS Passive Barrier Treatment System and the additional inclusion of a small water treatment plant on weekly hire.
The passive barrier system is designed to treat PFAS-contaminated surface water. The system consists of a permeable, engineered structure that intercepts and removes PFAS as the water flows through it naturally. Unlike active treatment systems (water treatment Plants) that require pumps, energy inputs, or chemical dosing, a passive barrier system relies on natural hydraulic gradients and filtration media to treat contamination efficiently over the long term with minimal maintenance.
The passive barrier system is designed to treat PFAS-contaminated surface water. The system consists of a permeable, engineered structure that intercepts and removes PFAS as the water flows through it naturally. Unlike active treatment systems (water treatment Plants) that require pumps, energy inputs, or chemical dosing, a passive barrier system relies on natural hydraulic gradients and filtration media to treat contamination efficiently over the long term with minimal maintenance.
Geotechnical Engineering Groundwater
Sarjaro were contracted by Mavtech to design, construct, mobilise, setup and commission a filtration treatment plant to treat the contaminated water / spoil which is produced during their piling operations.
The Mavtech Water Treatment Plant was designed to fit within one 20ft, self-bunded shipping container, as it is required to be mobile and be moved from site to site for different projects.
The system was designed to treat a wide variety of contaminants as Mavtech’s works would range from site to site. The primary contaminants which are targeted through the system are hydrocarbons, metals, suspended solids, total organic carbon, dissolved organic carbon and PFAS.
Following commissioning, Sarjaro provided training to Mavtech staff to operate and maintain the system. As required, Sarjaro assist in more specialty activities and maintenance.
The Mavtech Water Treatment Plant was designed to fit within one 20ft, self-bunded shipping container, as it is required to be mobile and be moved from site to site for different projects.
The system was designed to treat a wide variety of contaminants as Mavtech’s works would range from site to site. The primary contaminants which are targeted through the system are hydrocarbons, metals, suspended solids, total organic carbon, dissolved organic carbon and PFAS.
Following commissioning, Sarjaro provided training to Mavtech staff to operate and maintain the system. As required, Sarjaro assist in more specialty activities and maintenance.
Quarantine Washing Facility
Sarjaro were contracted by North Queensland Bulk Ports (NQBP) to design, construct, mobilise, setup and commission a Washdown Water Treatment System (WWTS) for the Area 4 Quarantine Facility.
The WWTS complies with the Department of Agriculture, Fisheries and Forestry (DAFF) cleaning requirements and is designed to remove contaminants down to < 100 microns. The system also has the capacity to remove metals, hydrocarbons and PFAS from wash waters.
Following successful commissioning, Sarjaro provided an Operation & Maintenance manual, and training in how to run the system. The system is now owned by NQBP, and Sarjaro assist for technical and specialist support.
The WWTS complies with the Department of Agriculture, Fisheries and Forestry (DAFF) cleaning requirements and is designed to remove contaminants down to < 100 microns. The system also has the capacity to remove metals, hydrocarbons and PFAS from wash waters.
Following successful commissioning, Sarjaro provided an Operation & Maintenance manual, and training in how to run the system. The system is now owned by NQBP, and Sarjaro assist for technical and specialist support.
Hi-Quality Waste Facility
Sarjaro were engaged by Hi-Quality to provide water management solutions which involved the design, construction, mobilisation, setup, commissioning, operation and maintenance of one (1) bespoke multi-barrier water treatment plant to manage PFAS contaminated wastewater. Although the plant is to remove PFAS, the wastewater received often contains a wide range of contaminants including hydrocarbons, suspended solids, metals, BTEXN, BOD, COD and nutrients. Our WTP design enables removal of these contaminants prior to the specialised filtration media, specific for PFAS, and is compliant to conditions of the site Environmental Authority (EA), stipulated by the Department of Environment and Science (DES).
Due to the complexity of the untreated wastewater, Sarjaro manage each batch separately, performing bench scale trials to assess the optimal chemical dosing regime using a proprietary blend of powdered
activated carbon, coagulants, flocculants and pH correction. The water passes through a range of specialised filtration media to systematically reduce contaminants and primarily PFAS concentrations to below trace level limit of reporting (<0.001 - <0.005 ug/L). Sarjaro have successfully treated 0.7 Million litres of contaminated water, demonstrating 100% compliance in meeting the EA treatment conditions. Our client and the regulator (DES) have continued confidence that the wastewater treated by Sarjaro is treated to the stringent criteria.
Due to the complexity of the untreated wastewater, Sarjaro manage each batch separately, performing bench scale trials to assess the optimal chemical dosing regime using a proprietary blend of powdered
activated carbon, coagulants, flocculants and pH correction. The water passes through a range of specialised filtration media to systematically reduce contaminants and primarily PFAS concentrations to below trace level limit of reporting (<0.001 - <0.005 ug/L). Sarjaro have successfully treated 0.7 Million litres of contaminated water, demonstrating 100% compliance in meeting the EA treatment conditions. Our client and the regulator (DES) have continued confidence that the wastewater treated by Sarjaro is treated to the stringent criteria.
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