Water Resources

Filter Total Items: 190
Date published: March 27, 2018
Status: Archived

Streamflow Statistics for Unregulated and Regulated Conditions for Selected Locations on the Yellowstone, Tongue, Powder, and Bighorn Rivers, Montana

Major floods in 1996-1997 on the Yellowstone River intensified public debate over the effects of human activities on the Yellowstone River. The Yellowstone River Conservation District Council partnered with the U.S. Army Corps of Engineers to conduct a cumulative-effects study on the Yellowstone. For that study, the USGS calculated streamflow statistics for unregulated (no development) and...

Date published: March 27, 2018
Status: Active

Water Quality of San Francisco Bay

For over three decades, the USGS has maintained a program of research and observation in San Francisco Bay, including regular measurements of water quality along a 145-kilometer transect spanning the length of the entire estuarine system from the South San Francisco Bay to the Sacramento River.

Attribution: Water Resources
Date published: March 21, 2018
Status: Completed

Method and Apparatus for Steady-State Measurement of Liquid Conductivity in Porous Media, US Patent 4,679,422

In the operation of the present invention, a compacted porous medium is provided with a supply of the desired liquid and is subjected to centrifugal force until the measurement of the flow rate of liquid through the medium is substantially constant. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Selenate Removal from Waste Water, US Patents 5,271,831 and 5,009,786

A method and apparatus for removing selenate from waste water through the use of selenate respiring microorganisms under substantially anoxic conditions is described. The method includes a first zone for removing nitrate by assimilation into biomass.  (Full details available at the U.S. Patent and Trademark Office website for patents ...

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Method for Enhancing Oxidation of Methyl Bromide With Strain IMB-1 (ATCC 202197) During Agricultural Fumigations, US Patent 6,013,254

A method is provided for enhancing oxidation of methyl bromide during agricultural fumigations of fields using a fumigant containing methyl bromide. The method comprises adding a methylotrophic bacterium to the soil in an amount effective to provide bacterial oxidation of the methyl bromide. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Crystallization of Powders Having Uniform Particle Sizes by Ostwald Ripening at Large Levels of Supersaturation, US Patent 6,379,459

A method is provided for the manufacture of mineral power crystals having a uniform mean size. The method includes forming a solution which is highly supersaturated with respect to the crystals. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Aquifer Remediation Barrier for Removal of Inorganic Contaminants, US Patent 6,428,695

A permeable barrier for decontaminating groundwater having two distinct components for increasing contaminant removal. Preferably, the barrier material is a mixture or distinct layers of bone-char phosphate material and iron oxide pellets. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Borehole Testing System, US Patent 6,761,062

A self-contained, transportable system for conducting any of hydrologic tests or water sampling techniques without the need for retooling or readjusting the system. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Deep Aquifer Remediation System, US Patent 6,458,271

A groundwater decontamination system includes a decontamination unit adapted to be lowered down through a non-pumping well into an aquifer containing contaminated water. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

A Bioreactor for the Oxidation of the Fumigant Methyl Bromide, US Patent 6,916,446

Methyl halide contaminants are oxidized in a reaction chamber containing a methylotrophic bacterium through direct oxidation of the methyl halide contaminant. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Sorbant Sequestration and Removal of Toxic Metal Ions, US Patent 6,896,813

A matrix for water decontamination has an amended sorbant cellulose substrate with an iron (ferric) oxyhydroxide component and a component to sorb dissolved organic compounds retained by the cellulose substrate. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources
Date published: March 20, 2018
Status: Completed

Small-Scale, Hydrogen-Oxidizing Denitrifying Bioreactor, US Patent 6,863,815

A method for treating nitrate-contaminated water comprising treating said water with hydrogen-oxidizing denitrifying bacteria in the presence of hydrogen. (Full details provided by the U.S. Patent and Trademark Office website.)

Attribution: Water Resources