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- Cations (1)
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- Precipitation (Meteorology) -- Oregon -- Portland -- History (1)
- Sediment transport -- Spokane River Watershed (Idaho and Wash.) -- Case studies (1)
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- Water harvesting -- Oregon -- Portland (1)
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Articles 1 - 4 of 4
Full-Text Articles in Engineering
Implementation Of A Sediment Transport Model For Ce-Qual-W2, Rachel Hanna
Implementation Of A Sediment Transport Model For Ce-Qual-W2, Rachel Hanna
Civil and Environmental Engineering Master's Project Reports
The CE-QUAL-W2 model, developed by Portland State University, simulates water quality and flow. Recommendations to expand on this model and have it include sediment transport are implemented in this report. Existing one-, two-, and three-dimensional models are reviewed and assessed for their sediment transport methodology. A laterally (width) averaged sediment concentration model is developed as an Upwind Center Space Scheme using CE-QUAL-W2 data. The scheme includes a method to calculate scour for sediment concentration and results of the model are shown for a simulated branch of the Spokane River.
Modelling Rainwater-Harvesting System Reliability Based On Historical Precipitation Data For Portland, Mrinali Mathur
Modelling Rainwater-Harvesting System Reliability Based On Historical Precipitation Data For Portland, Mrinali Mathur
Civil and Environmental Engineering Master's Project Reports
Rainwater harvesting can ease the water availability problems for many parts of the world where water is not easily available. It is also a solution for minimizing stormwater runoff and better managing sewers by preventing combined sewers to overflow. The goal of this project is to calculate the reliability of rainwater harvesting systems and provide optimum size of the storage tank using historical records for Portland specific rain pattern. A simple water balance approach for historical data is used to calculate the reliability by which rainwater harvesting system can be used as a means of irrigating gardens in Portland. The …
Occurrence Of Synthetic Amino-Polycarboxylate Chelating Compounds In Oregon Surface Waters, Nathan A. Hersey
Occurrence Of Synthetic Amino-Polycarboxylate Chelating Compounds In Oregon Surface Waters, Nathan A. Hersey
Civil and Environmental Engineering Master's Project Reports
Cation sequestering compounds are contained in many industrial, commercial and personal care products. The most widely used chelating agents, EDTA and DTPA, are commonly found in natural and industrial settings. When chelating compounds are present, the activity and transport of metal cations in the environment and the uptake of metals in natural systems can be affected. Surface water samples from across the United States were analyzed, as well as local collection and analysis of surface waters and wastewater treatment plant effluent from around Northwest Oregon. Results indicate presence of synthetic chelating compounds in areas with human activity, and absence in …
Application Of Ce-Qual-W2 On Tigris River In Iraq, Muhanned Al-Murib
Application Of Ce-Qual-W2 On Tigris River In Iraq, Muhanned Al-Murib
Civil and Environmental Engineering Master's Project Reports
The Tigris River is the eastern member of the two great rivers in Iraq. Two big rivers pass through Iraq, Mesopotamia. Tigris and Euphrates Rivers with their tributaries form a major river system in the Middle East. Four riparian countries, Turkey, Syria, Iran, and Iraq, share the Tigris River basin area and Iraq has the majority of this basin area. The total length of the Tigris is 1850 km from which 1418 km is within Iraq. A study area of 880 km from Mosul dam to Kut barrage is modeled using a water quality CE-QUAL-W2 model. CE-QUAL-W2 is a two-dimensional …