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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...

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

Although an essential element for living cells, Phosphorus can have serious environmental effects when found in natural or engineering environments.

Major sources of Phosphorus pollution can come from wastewater effluent, commercial chemicals and agricultural waste.  Phosphorus minerals, such as struvite and vivianite, can precipitate and form scales in drinking water and wastewater systems.

Although these minerals are problems when left uncontrolled and unmonitored, their recovery is beneficial.

...

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TagsWater, Wastewater, treatment, effluent, phosphorus, pollution, Recycling, Sustainability,

Do you have a water, wastewater, and/or stormwater project and you need funding assistance? 

The Texas Water Development Board (TWDB) has just opened the solicitation period for projects for the SFY 2020 Clean Water and...

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TagsWater, Wastewater, Stormwater, TWDB, Funding, Texas Water Development Board,

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...

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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...

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

We're excited about our 22 presentations at Texas Water. 

From asset management to wastewater collection to engineering ethics, our presentations address your challenges. With 13 offices across Texas, we are the experts next door that you can rely on. We look forward to seeing you at the presentations and Booth 631.

See all of our presentations below by topic or ...

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TagsTexas water, Water conservation, asset management, Wastewater,

Congratulations to Chad Simmons, who became a Board Certified Environmental Engineer (BCEE) through the American Academy of Environmental Engineers and Scientists (AAEES). 

"BCEE is one of the highest honors and certifications that the treatment engineering team members can achieve," said David Jackson, Group...

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TagsBCEE, Wastewater, AAEES, environment,

If you're in the wastewater business, regulators may analyze your system/plant performance — and you'll need to be ready. Freese and Nichols University will host the Skype Webinar “Ready for the Regulators?” 11:30 a.m.–1 p.m.  Central on June 28. In this webinar, FNI’s legal and engineering experts will help you navigate the complex terrain of wastewater enforcement from both state and federal regulators.

We'll present recommendations so you can be ready when regulators knock on your door....

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TagsWastewater,

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