Primary Wastewater Treatment
Primary wastewater treatment systems for councils and industrial operators, delivering robust solids removal and primary clarifier solutions across Australia and New Zealand.
Protect Downstream Treatment Performance

Protecting Treatment Performance Starts with Primary Wastewater Treatment
Effective primary wastewater treatment removes solids and organic load before biological processes, protecting downstream assets and treatment performance. Poor primary treatment can overload secondary systems, increase maintenance requirements, and reduce overall plant capacity. Councils and industrial operators face growing compliance, capacity, and asset lifecycle pressures, making reliable, well-integrated primary treatment a critical foundation of any wastewater treatment plant.



Operational Outcomes of Primary Treatment with FILTEC
Reduced Solids Loading
Biological Process Stability
Extended Asset Life
Capacity for Growth
How FILTEC Reduces Risk in Primary Wastewater Treatment
FILTEC delivers primary wastewater treatment by focusing on system performance, operational risk, and long-term reliability. Rather than supplying isolated equipment, we support councils and industrial operators with integrated primary treatment solutions designed to perform reliably within the full wastewater treatment process.

System-Level Treatment Understanding
We design primary treatment with a clear understanding of how it affects downstream biological and tertiary processes, ensuring stable plant performance.
Application-Driven Technology Selection
Primary treatment solutions are selected based on influent characteristics, site constraints, and operational requirements - not a one-size-fits-all approach.
Proven, Fit-for-Purpose Solutions
FILTEC works with established technologies and suppliers, delivering primary clarifier and solids removal systems with proven performance in municipal and industrial applications.
Full Project Lifecycle Involvement
From early design support through supply, commissioning, and optimisation, FILTEC remains involved across the full project lifecycle.
Local Delivery and Service Support
With local engineering and service teams in Australia and New Zealand, FILTEC supports ongoing operation, maintenance, and performance optimisation.
Primary Wastewater Treatment Solutions

Primary Clarifier Systems – Polychem Chain and Flight
FILTEC supplies primary clarifier systems incorporating Polychem chain and flight scraper technology for reliable solids and sludge removal. These clarifier scraper systems are well suited to council wastewater treatment plants, providing robust performance in primary sedimentation tanks while supporting efficient sludge collection and protecting downstream biological processes.
Dissolved Air Flotation (DAF) Systems
For industrial primary wastewater treatment applications, FILTEC delivers dissolved air flotation (DAF) systems designed to remove fats, oils, grease, and suspended solids. DAF is particularly effective for high-strength industrial effluent, including dairy and food processing, where compact footprint and high solids removal efficiency are required.


Salsnes Filters
Salsnes filters provide compact primary treatment through fine screening and solids removal, offering an alternative to conventional sedimentation in suitable applications. These systems can reduce solids loading and support downstream treatment processes where space constraints or process requirements limit traditional primary clarification.
Screening Integration and Specification Support
While not supplying proprietary screening equipment, FILTEC supports the integration and specification of wastewater screening systems as part of primary treatment. This includes application advice, system selection support, and coordination with upstream headworks to ensure effective solids removal and plant protection.

Who We Work With
Dairy Manufacturers
Food Processing Plants
Meat Processing Facilities
Engineering Consultancies
Beverage Producers
Glass, Paper, Plastics Manufacturers
City Councils
Town Councils
Regional Water Authorities
Dairy Manufacturers
Food Processing Plants
Meat Processing Facilities
Engineering Consultancies
Beverage Producers
Glass, Paper, Plastics Manufacturers
City Councils
Town Councils
Regional Water Authorities
Dairy Manufacturers
Food Processing Plants
Meat Processing Facilities
Engineering Consultancies
Beverage Producers
Glass, Paper, Plastics Manufacturers
Primary Wastewater Treatment Projects

Dissolved Air Flotation System for Dairy Manufacturer

Water Recycling System for a Large Seafood Manufacturer
FAQs
What is primary wastewater treatment and why is it important?
Primary wastewater treatment removes solids and organic load early, protecting downstream processes, improving plant stability, and reducing operational and maintenance risk.
How does primary treatment protect secondary biological processes?
By removing settleable solids and fats early, primary treatment reduces loading on biological systems, improving performance, reliability, and treatment capacity.
What primary treatment systems are suitable for councils?
Council wastewater facilities typically incorporate screening, grit removal, and primary clarifiers with chain and flight scrapers for sludge and solids removal.
When is DAF used for primary wastewater treatment?
DAF is typically used for industrial wastewater with high fats, oils, grease, or suspended solids, where compact, high-efficiency solids removal is required.
How does FILTEC select the right primary treatment solution?
FILTEC assesses influent characteristics, site constraints, downstream processes, and operational requirements to select fit-for-purpose primary treatment solutions.
Can FILTEC support upgrades to existing primary treatment assets?
Yes. FILTEC supports upgrades, refurbishments, and retrofits to improve performance, extend asset life, and better integrate primary treatment with existing plants.
How does primary treatment affect overall plant capacity and compliance?
Effective primary treatment improves hydraulic and organic capacity, stabilises downstream processes, and supports ongoing compliance as flows and loads increase.
Plan Primary Wastewater Treatment with Confidence
Early engagement helps ensure primary treatment solutions are correctly selected and integrated. Speak with FILTEC about primary treatment options suited to your plant, influent characteristics, and long-term operational goals.
