For the last 100 years, the main focus of biological wastewater treatment has been the use of activated sludge. In these systems, aeration, and bacteria selection are critical to maintaining the right environment to have light and fluffy floc. Over the years, various configurations have been developed to achieve lower levels of nitrogen (N) and phosphorus (P) using multiple tanks, biological selectors, and chemical addition with further clarification and filtration. All in all, activated sludge in all its variations is the norm in the industry.
The advantages of aerobic granular sludge are excellent settleability and robustness of the biological colony. The settleability of the granules is more than 5 times faster than a conventional activated sludge floc due to the dense nature of the colony. Having a denser, better settling sludge allows plants to be designed with smaller treatment basins, reducing capital costs, and providing greater sustainability given more efficient operation. The unique structure of the granular sludge also allows for more efficient simultaneous removal of ammonia, nitrate, and phosphorus versus conventional activated sludge processes.
Join the wastewater revolution with GRANITE™, Parkson’s Aerated Granular Sludge system.
Take the leap towards a greener future with our state-of-the-art technology. Discover how Aerated Granular Sludge transforms wastewater treatment into an environmentally conscious, cost-effective, and efficient process. Embrace sustainability, meet regulatory demands, and achieve operational excellence with this groundbreaking solution.
Key Features of Aerated Granular Sludge

- Nature’s Efficiency: Mimicking the natural purification process, Aerated Granular Sludge fosters the growth of robust microbial communities (Heterotrophic, Nitrifiers, Denitrifiers, PAOs and GAOs) within compact, granular structures. These dynamic microorganisms work synergistically to effectively remove pollutants from wastewater, transforming it into a pristine state.
- Unmatched Performance: With its enhanced surface area and superb biofilm formation, Aerated Granular Sludge achieves remarkable pollutant rates. Experience unparalleled treatment performance and consistently meet stringent regulatory requirements with ease.
- Lower Energy Consumption: Embrace sustainability with our energy-efficient GRANITE Aerated Granular Sludge system. Thanks to the remarkable biological activity of the granules, a reduced carbon footprint is achieved, contributing to greener and more sustainable operations.
- Space-Saving Design: Our innovative technology requires significantly less space compared to conventional treatment methods allowing for higher MLSS and faster settling rates. The compact footprint not only optimizes land usage, but also allows for straightforward upgrades or retrofits of existing treatment facilities.
- Enhanced Process Stability: The GRANITE Aerated Granular Sludge system exhibits remarkable resilience to fluctuations in wastewater composition and flow rates. Say goodbye to process disruptions and hello to smooth, stable operations.
- Versatility: Our technology is adaptable to various wastewater types, including industrial, municipal and agricultural effluents. Experience the flexibility you need to address diverse treatment challenges.
- Low Maintenance: Minimize operational complexities and maintenance costs with our user-friendly GRANITE Aerated Granular Sludge system. Simple operation and reduced sludge generation contribute to hassle-free maintenance and fewer disruptions.
- Longevity and Durability: Benefit from a robust and long-lasting solution that stands the test of time. Aerated Granular Sludge ensures longevity and reliable performance throughout its operational life.
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