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Capstone Projects

Rooted Education: learning from aquaponics

Sat, 04/30/2016 - 15:02
Abstract: Aquaponics is the integration of soil-less agriculture (hydroponics) within closed-loop aquaculture systems to reduce the toxic accumulation of nutrient waste from aquatic animals. Bacteria naturally establish to purify water by oxidizing the ammonia secreted by fish, which reduces the toxicity of effluent while creating a usable nitrogen source for plants. The conversion of ammonia and nitrite into nitrate by living bacteria communities is called a biological filter, or biofiltration (FAO 2014). Aquaponics would not be possible without biofiltration; the slightest amount of ammonia would be fatally toxic to fish, and plants wouldn't receive the nitrates they need to grow. There are unique opportunities offered by an aquaponics system to learn about ecological and human communities. 1.1. Aquaponics enables users to grow fish and agricultural plants with limited space and resource use (water, soil, and time). This enables an aquaponics user to invest less physical energy and time into expanding sustainable food resources for their household use. 1.2. A small aquaponics system could promote cultural values of self-sufficiency, energy consciousness, and connection to food systems. It could inspire individual efforts to produce food for one’s household, to build healthier and more resilient systems, and a greater appreciation for farming. Therefore, this project aims to actualize a mobile and functional aquaponics system for the educational benefit of the Paul Smith's College community. I will provide the background knowledge needed to maintain an aquaponics system, as well as describe the general concept of aquaponics design.
Access: No
Literary Rights: On
Major: Environmental Sciences, Natural Resources Sustainability Studies
Year: 2016
File Attachments: The Author has selected not to publish this complete work.
Authors: Brian Jason Kohan

Where in the Unite States Can Dual-Flush Toilets Flush Out Savings?

Mon, 12/02/2013 - 13:06
Abstract: Potable water is becoming increasingly scarce in water poor regions of the United States. Reducing the volume of potable water consumed residentially and commercially is vital to ensure a stable water dependent future. Converting a traditional single-flush toilet into a dual-flush toilet is arguably the most effective means for reducing wastewater production in both residential and commercial settings. The objective of this study was to determine where within the United States dual-flush retrofits are cost effective. A cost-benefit analysis illustrating the price of the dual-flush retrofits & the monetary value of the water conserved post installation will be created using Paul Smith’s College campus of northern New York State as a testing site. The study will utilize a total of 145 toilets for both commercial and residential settings. Costs of the installation and purchasing of the product will be used to determine pay-back period and thus, the economic benefit of installing dual-flush toilets. Secondary data from previously completed dual-flush studies determined where within the 50 states dual-flush retrofits are cost effective. The resulting data illustrated relatively long payback periods for the greater United States with the most dramatic differences being seen in Hawaii and the least in Nebraska.
Access: Yes
Literary Rights: On
Major: Natural Resources Sustainability
Year: 2013
File Attachments: FinalC.docx
Authors: Andrew Noviasky