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Louisiana’s coastal bayous and bays are vital to more than just its ecological health, providing the recreational, industrial and cultural basis for Louisiana’s economy. Louisiana is blessed with an abundance of surface water, so much so that the use of that surface water, for industrial, municipal and petrochemical pursuits has not reached the point where aquatic ecosystems have suffered.

But with increases in population and the petrochemical industry, saltwater intrusion, climate change...

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Tagsenvironmental flow, environment, louisiana, gulf, bayou, estuary, stream, river, surface water,

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...

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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 HRAS systems.

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

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

Note: This is part two in a series. Read part one here.

When we think of recycling, we tend to think about materials: plastics, cardboard, glass and metals, but not water. Materials recycling is successful for a multitude of reasons, but one of the primary drivers of recycling is securing reliable long-term resources. That same reasoning can (and should) be applied to our water resources.

While water recycling (also called reuse...

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Tagswater resources, Water reuse, water reclamation, water recovery,

We've expanded our water/wastewater capabilities for clients throughout Georgia and the Southeast United States by hiring Paula Feldman , PE and Eric Nease, PE.

Feldman and Nease, who owned Engineered Horizons , will lead our East Coast water/wastewater master planning and modeling team.

Feldman, with 25 years of experience, specializes in water and wastewater infrastructure planning, including forecasting of future needs, water supply planning, hydraulic modeling, asset management and business case evaluations....

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TagsGeorgia, wastewater master planning, modeling, Planning, atlanta,

Freese and Nichols is offering interactive workshops for the Hydrologic Engineering Center-River Analysis System, better known as HEC-RAS. This free software, developed by the U.S. Army Corps of Engineers , includes 2D flow modeling capabilities that can depict flow patterns more accurately than one-dimensional models. HEC-RAS 2D equips dam owners and floodplain managers with more realistic models of complex river systems and large flood events, such as hypothetical dam breaches.

Our workshops teach...

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TagsHEC-RAS, modeling, 2-D Modeling,

Please join us in welcoming Naveen Chillara, PE. He joins our Water Resources Design Division as a senior project manager and water resources design engineer serving the Southeast Texas and Louisiana markets.

With more than 16 years of experience in water resources projects and coastal engineering services, Naveen will play an integral role in supporting existing client needs and expanding our services to a diverse client base throughout the region.

“Naveen has...

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Tagswater resources, southeast texas, Coastal, louisiana,

The Texas Commission on Environmental Quality has named Toby Baker as its new executive director.

Baker replaces Richard Hyde, PE, who retired at the end of March. Baker was appointed as a commissioner in April 2012 by then-Gov. Rick Perry.

“I am looking forward to bringing a unique perspective to the role of executive director,” Baker said in a press release. “My goal is to provide the commission with the best information,...

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TagsTCEQ,

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