Engineering Commons^™

Procedural Treatment Options To Address Intermittent Pentachlorophenol Effluent Exceedances At A Former Wood-Treatment Site In Butte, Montana, Travis Dunkle

Graduate Theses & Non-Theses

The Montana Pole and Treating Plant in Butte, Montana treated wood with preservatives, mainly pentachlorophenol (PCP), which had been dissolved in a carrier fluid. Accidents and careless handling spilled large quantities of the fluid on the site, contaminating the vadose zone and groundwater. This site has been undergoing remediation since it was added to the CERCLA National Priorities List in 1987. Pentachlorophenol and dioxin are the contaminants of concern. Remediation technologies have included soil removal and installation of two water recovery trenches that collect groundwater, which is then pumped through a granular activated carbon (GAC) water treatment system. There were …

A Life Cycle Assessment Of A Diesel Generator Set, Kelly Benton

Graduate Theses & Non-Theses

Today, nearly every industry needs a continuous power supply, as data loss can be more expensive than the capital expenditure for the backup power equipment. The demand for emergency standby power (ESP) generator sets is on the rise because of increasing industrialization. With increased industrialization comes a societal concern about the issue of natural resource depletion and environmental degradation. In response, manufacturing companies are providing more sustainable solutions in their products and processes. In this work, the life cycle assessment (LCA) methodology has been applied to quantify the energy demands of each life cycle stage of an ESP generator set …

Characterizing Sources Of Nutrient Loading And Heavy Metals And Developing Best Management Practices For Grove Gulch In Butte, Mt, Garrett Craig

Graduate Theses & Non-Theses

Silver Bow Creek (SBC) – the headwaters for the Clark Fork River – is impaired for total nitrogen (TN) and total phosphorus (TP), as well as several heavy metals, including arsenic, cadmium, copper, lead, and mercury. Blacktail Creek (BTC) is the main tributary of SBC, with Grove Gulch entering BTC before it discharges into SBC. Grove Gulch flows approximately six miles before entering BTC approximately 75 feet upstream of Lexington Avenue, and the stream drains primarily open, rolling range, a historic metal milling site (Timber Butte zinc mill) and a reclaimed mine waste repository that is now Copper Mountain Recreation …

Characterization Of Heavy Metal Removal From Aqueous Solutions Using Natural Fiber Impregnated With Metallic Nanoparticles, Samantha Hutchenson

Graduate Theses & Non-Theses

Heavy metals are found in varying concentrations in anthropogenically influenced water sources including waste water discharge from mining operations. The heavy metals need to be removed to meet applicable discharge standards and to eliminate potential health effects. There has been substantial research recently in the field of water treatment technologies to produce low-cost materials that have metal-binding capabilities. The goal of this research is to characterize the toxic metal removal capabilities of a novel, low cost water treatment system.

This research uses a natural fiber substrate and incorporates specific nanometallic particles to remove toxic heavy metals from water. Natural fiber …

Application Of Qual2k Model To Macrophyte Rich Silver Bow Creek, Dylan Uecker

Graduate Theses & Non-Theses

Silver Bow Creek (SBC, Blacktail Creek to Warm Springs Creek) is a small urbanized stream in western Montana (MT) identified as impaired for nitrate, total nitrogen and total phosphorus on the 2014 303(d) list. Enrichment of SBC occurs primarily from a single municipal point source that results in excessive primary production, macrophyte growth, large diel waterquality swings, and nightly hypoxic conditions that likely impair aquatic life uses. The objective of this study is to apply QUAL2K (a surface water-quality model) to a 5.6 km long reach of SBC to predict in-stream dissolved oxygen (DO) concentrations under different nutrient loading scenarios. …