You are here

In high-rate activated sludge (HRAS) systems, extracellular adsorption and intracellular storage have been referred to as the dominant mechanisms for capturing organic carbon from wastewater.

However, the quantification of storage products under short sludge retention time (SRT) of HRAS systems has rarely been studied until now. Since the measurement of storage products is complex and dependent on several variables, alternative solutions for substrate removal through storage are required to understand the high-rate...

Subscribe to our Blogs

Tagstreatment, wastewater treatment, activated sludge, Wastewater, HRAS,

Operators of water resource and recovery facilities (WRRFs) are increasingly interested in using carbon-capture technologies such as high-rate activated sludge (HRAS) systems to minimize carbon oxidation and maximize organic carbon recovery and methane potential through biosorption of biodegradable organics into the biomass.

I worked with an international research team to study a universal process model for HRAS for maximizing carbon capture from wastewater.

During our research, we studied models involving the Blue...

Subscribe to our Blogs

TagsWastewater, wastewater treatment, sludge, high activated sludge system,

To be more cost-effective and energy-efficient, cities increasingly are shifting their wastewater treatment plants toward energy-recovery systems. And the high-rate activated sludge system (HRAS) is becoming the backbone of energy-efficient wastewater treatment processes.

But not enough research has been done on the various carbon-removal technologies available. And there is a need to better understand and improve nitrogen and phosphorous management in HRAS systems.

Carbon removal technologies include the A-stage of AB...

Subscribe to our Blogs

TagsWastewater, wastewater treatment, Energy Efficiency, sludge, high activated sludge system,