Ecological treatment systems can provide a sustainable, plant-based alternative to traditional wastewater treatment. One factor essential to the success of these systems is ensuring their ability to reduce coliform concentrations in wastewater. Wastewater is the primary source of fecal contamination in aquatic ecosystems, containing total and fecal coliforms on the order of 10(8)-10(10) and 10(7)-10(9) CFU L(-1), respectively. This study assessed the ability of an ecological treatment system to reduce concentrations of total coliforms and Escherichia coli from dairy wastewater. Low strength wastewater was pumped into the system during July of 2005 and high strength in September 2005. Wastewater passes through a series of anaerobic, aerobic, and clarifier reactors and wetland cells before exiting the system. Regardless of wastewater strength, average total coliform and E. coli concentrations were consistently reduced by at least 99% from influent to effluent, with the majority of the reduction (76%) occurring in the first two reactors. Relationships between internal concentrations of solids and coliforms indicated that increased reduction of solids may further reduce coliform concentrations. Although U.S. Environmental Protection Agency discharge requirements for E. coli were not always met, the substantial reductions achieved indicate that ecological treatment systems have the potential to successfully reduce coliforms in wastewater to meet discharge limits. The results from this study will be used to guide design and management of future ecological treatment systems, so that larger and more consistent coliform reductions can be achieved.
Known as one of the largest and most expansive French fortress sites in North America, Louisbourg had a short yet rich history of prosperity, warfare, and abandonment during the 18th century. Throughout its tumultuous 45‐year history, the community at Louisbourg was a mosaic of individuals including civilians, soldiers, fishermen, merchants, and privateers, originating from both North America and Europe. This diverse population no doubt contributed to Louisbourg's large and multifaceted cemetery composition. During recent excavations at Louisbourg's Rochefort Point, variable burial patterns have begun to emerge that contribute to our understanding of who these individuals were and how they fit within this 18th century community. This paper presents a case study analysis of Burial 21/2017, an adult male aged between 27 and 33 years who was buried in a coffin that bore biographical information that is consistent with previously documented English burials. When comparing this unique coffin adornment with temporally similar examples from Britain and other British colonies, it is clear that despite burial on French soil, this individual's identity as a New Englander was maintained through mortuary treatment. Evidence of healed fracture trauma to multiple skeletal elements, infection, and likely gout speaks to their lived experience as a soldier. This case study highlights the significance of burial context when extrapolating elements of identity from skeletal remains and the challenges of bioarchaeological research when working in regions with highly transient and mobile individuals.
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