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Drought conditions overall have continued to improve. The DSCI (drought severity and coverage index) was lowered from 64 to 63. Drought condition improvements occurred across parts of the Southeast, Northeast, Northern Plains, the Rockies and Desert Southwest. In California, however, persistent dry conditions led to expansion of areas of drought in northern parts of the state where a dangerous and fast-moving wildfire broke out late last week in the Sierra Nevada foothills. The Camp Fire is now the most deadly and destructive fire in the...

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TagsCurrent Drought Conditions, Drought Index, Drought Maps, Drought Monitor, Drought Response, Drought Restrictions, Groundwater, Historical Data, reservoir levels, streamflow,

In the November 2018 Climate Prediction Center update, it was determined that El Niño is expected to form and continue through the Northern Hemisphere winter 2018-19 (~80% chance) and into spring (~55-60% chance). The official forecast favors the formation of a weak El Niño, with the expectation that the atmospheric circulation will eventually couple to the anomalous equatorial Pacific warmth. To read more, click here.

In the National Oceanic and...

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TagsLa Nina, Forecasts, Drought Outlook, Drought Maps, Climate,

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...

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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...

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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,

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)...

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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/...

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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...

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TagsHEC-RAS, modeling, 2-D Modeling,

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