IdeaFest 2015
http://hdl.handle.net/10211.3/136998
2024-03-29T08:07:38ZExamining Capabilities of Various Single Bacterial Strains on Peptide Degradation in Seawater
http://hdl.handle.net/10211.3/143841
Examining Capabilities of Various Single Bacterial Strains on Peptide Degradation in Seawater
Halim, Kerollos
The research aimed to compare the capabilities of two single strains of bacteria in their ability to hydrolyze a common peptide found in the seawater. The research is important in adding to knowledge of the carbon cycle, and how organic matter is processed on incredibly small scales. The data collected over the course of ten weeks turned out significant and more data is going to be added in the future to compile a database for the different bacteria strains which may one day help in environmental restoration projects.
2015-04-17T00:00:00ZFrequency and Intensity of Exposure to Carbonate Corrosive Waters in a Near-shore Upwelling Environment
http://hdl.handle.net/10211.3/140110
Frequency and Intensity of Exposure to Carbonate Corrosive Waters in a Near-shore Upwelling Environment
Jacobsen, Jasen
A primary consequence of increasing atmospheric CO2 is the lowering of ocean pH and associated stress on calcium carbonate bearing organisms. Coastal regions are vulnerable to low-pH due to seasonal upwelling which periodically introduces CO2–enriched deep water to the surface. Time-series of pH at Trinidad Head, California were analyzed to ascertain the frequency and intensity of exposure to carbonate corrosive waters from 2006-2011. Most years experienced 11-35 days of exposure to corrosive water, while enhanced upwelling in 2010 resulted in 61-84 days of exposure. Some instances show that corrosive conditions were ameliorated by enhanced photosynthesis in response to upwelled nutrients.
2015-04-17T00:00:00ZAnalysis of Soil pH in Relation to Decomposition
http://hdl.handle.net/10211.3/140109
Analysis of Soil pH in Relation to Decomposition
Ebel, Erika; Haggard, Alyssa; Charlton-Grant, Kiaya; Hegel, Casey
This research attempts to observe the effects organic decomposition has on the soil pH and aims to determine if pH levels are altered when remains are frozen opposed to unfrozen. Weekly qualitative observations and soil tests were conducted on six naturally decomposing swine limbs. We hypothesized that there would be a slight delay in the cycling of pH levels for frozen remains.Three frozen and three control limbs were deposited atop of undisturbed soil and observed for five consecutive weeks at the Simulated Archaeology Site at HSU. This research intends to address the correlation between pH levels and decomposition, which can be beneficial for future taphonomic research.
2015-04-17T00:00:00ZHybrid membrane processes for water reuse
http://hdl.handle.net/10211.3/139754
Hybrid membrane processes for water reuse
Luque Villanueva, Jairo; Zirkel, Gavin; Achilli, Andrea
A paradigm shift that utilizes water reuse strategies such as sewer mining is necessary as water resources become more stringent. Sewer mining is the beneficial reuse of wastewater before it is conventionally treated and discharged. This novel hybrid sewer mining system is a unique combination of proven unit processes: forward osmosis (FO), direct contact membrane distillation (DCMD), anaerobic membrane bioreactors (AnMBR), Sharon, Annamox, and struvite precipitation arranged in an innovative way. This poster will present the experimental results from a bench-scale automated FO-DCMD system to produce a high quality potable effluent under different operating conditions.
2015-04-17T00:00:00Z