Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Carbon; Denitrification; Microbiology; Sewage—Purification—Phosphate removal; Sewage—Purification—Biological treatment (1)
- Constructed wetlands; Environmental chemistry; Groundwater - Quality; Water quality management; Water - Toxicology (1)
- Introduced freshwater organisms; Quagga mussel; United States -- Lake Mead (1)
- Sustainability (1)
- Water resources development--Economic aspects (1)
Articles 1 - 4 of 4
Full-Text Articles in Physical Sciences and Mathematics
Substrate Monitoring, Contaminant Monitoring, And Educational Outreach On Quagga Mussels (Dreissena Bugensis) In Lake Mead, Nevada, Sara Ann Mueting
Substrate Monitoring, Contaminant Monitoring, And Educational Outreach On Quagga Mussels (Dreissena Bugensis) In Lake Mead, Nevada, Sara Ann Mueting
UNLV Theses, Dissertations, Professional Papers, and Capstones
The invasive species, the quagga mussel, Dreissena bugensis, was found in Lake Mead, Nevada-Arizona, USA on January 6, 2007. Since then, researchers have been attempting to quantify the amount of damage these mussels will cause to the lower Colorado River basin. Three projects were implemented in this thesis to research the quagga mussel in Lake Mead. First, a study to determine which types of substrates quagga mussels will grow on preferentially was conducted. Six different substrates, Acrylonitrile Butadiene Styrene (ABS) plastic, High Density Polyethylene (HDPE) plastic, Concrete Underlayment Board (CUB), aluminum, stainless steel and fiberglass, were placed in the Boulder …
Water Quality Changes In A Constructed Wetland At The Springs Preserve In Las Vegas, Nevada, Aaron Mathis Miller
Water Quality Changes In A Constructed Wetland At The Springs Preserve In Las Vegas, Nevada, Aaron Mathis Miller
UNLV Theses, Dissertations, Professional Papers, and Capstones
The Springs Preserve near downtown Las Vegas, Nevada contains a seven-acre constructed wetland. Springs Preserve managers are planning to use water from the constructed wetland to irrigate creeks immediately north of the wetland. These creeks will be used by a variety ofaquatic wildlife, including endangered amphibians sensitive to harmful metalloids, such as selenium, lead, and arsenic.
In an attempt to answer toxicological questions about contaminant concentrations in the constructed wetland, three metals and metalloids (selenium, arsenic, and lead), two nutrients (nitrogen and phosphorus), and the major ionic species were analyzed at four sampling locations for aqueous concentrations, in two separate …
The Influence Of Carbon Source Types And Nitrate On The Performance Of The Enhanced Biological Phosphorus Removal Systems, Shamim Ara Begum
The Influence Of Carbon Source Types And Nitrate On The Performance Of The Enhanced Biological Phosphorus Removal Systems, Shamim Ara Begum
UNLV Theses, Dissertations, Professional Papers, and Capstones
This research focuses on two issues in enhanced biological phosphorus removal (EBPR). The first issue encompasses the effect of the type of carbon sources (i.e. volatile fatty acids and non volatile fatty acids) on the microbiology of EBPR. The second issue deals with the influence of denitrification on EBPR. Few studies have been performed to investigate these two issues. The recent findings on these areas are summarized below to establish the knowledge gaps this dissertation attempted to address. Details on the specific findings can be found in the literature review portion of this proposal.
Flowing Toward Sustainability: Two Stream Adjudications Analyzed Under The Iad Framework, Nancye Lou Bethurem
Flowing Toward Sustainability: Two Stream Adjudications Analyzed Under The Iad Framework, Nancye Lou Bethurem
UNLV Theses, Dissertations, Professional Papers, and Capstones
One of the most significant problems impacting the western United States today is the lack of naturally occurring water resources, especially during this period of drought and explosive population growth. This has led to intense competition over water use and ownership in the arid and semi-arid regions of the United States. During this period of water resource scarcity, it is extremely important to determine the ownership of water rights in order to implement optimal management systems. Most western states use a system of "general stream adjudications" to make water rights ownership determinations.
General stream adjudications are legal proceedings used to …