Development Of A Guideline For Integrating Municipal Infrastructure Asset Management With Wastewater Energy Recovery Systems

<div>Wastewater energy recovery systems (WWERS) cycle residual heat from sewers back into a space for temperature conditioning. Using recovered energy instead of fossil fuels is a sensible direction towards a circular economy. Existing literature, while rich in technical considerations, does not analyze the decision-making process related to the wastewater infrastructure changes. Therefore, the purpose of this research was to bridge this gap in the literature through the development of a planning guideline, targeted to municipal owners of wastewater infrastructure. The proposed planning guideline was then applied to the Regional Municipality of York, a two-tier municipality in Ontario, Canada as a case study. The case study demonstrated the efficacy of the guideline, using publicly available municipal data to discern feasibility of centralized WWERS. Results may aid municipalities or WWERS proponents in advancing to a more widespread use, as an effective first step in bridging academic literature with often-stated municipal goals of increased sustainability of infrastructure systems. </div>

Development Of A Guideline For Integrating Municipal Infrastructure Asset Management With Wastewater Energy Recovery Systems

<div>Wastewater energy recovery systems (WWERS) cycle residual heat from sewers back into a space for temperature conditioning. Using recovered energy instead of fossil fuels is a sensible direction towards a circular economy. Existing literature, while rich in technical considerations, does not analyze the decision-making process related to the wastewater infrastructure changes. Therefore, the purpose of this research was to bridge this gap in the literature through the development of a planning guideline, targeted to municipal owners of wastewater infrastructure. The proposed planning guideline was then applied to the Regional Municipality of York, a two-tier municipality in Ontario, Canada as a case study. The case study demonstrated the efficacy of the guideline, using publicly available municipal data to discern feasibility of centralized WWERS. Results may aid municipalities or WWERS proponents in advancing to a more widespread use, as an effective first step in bridging academic literature with often-stated municipal goals of increased sustainability of infrastructure systems. </div>

Technical Considerations for Development of Policy and Approvals for In-Water Cleaning of Ship Biofouling

Submerged ship surfaces are often inhabited by diverse sessile and sedentary marine organisms, which can directly impact vessel operations and increase the likelihood of non-indigenous species (NIS) establishment and impacts. Ship in-water cleaning (IWC) systems are now being incorporated into biofouling policy, and rigorous, transparent, and predictive verification testing is vital to regulatory success. Performance criteria for IWC approval should focus on environmental protection goals by including: qualified and independent testing; quantitative, robust, and statistically sound data, rather than qualitative observations; water sampling at all critical control points to characterize the release of harmful materials, including dissolved and particulate biocides; measurable and protective endpoints, rather than percent reductions; determinations of presence or absence of macro-organisms, irrespective of species origins or physiological state; and appropriately trained IWC operators.

Project-Oriented Web Scraping in Technical Communication Research

This article advocates for web scraping as an effective method to augment and enhance technical and professional communication (TPC) research practices. Web scraping is used to create consistently structured and well-sampled data sets about domains, communities, demographics, and topics of interest to TPC scholars. After providing an extended description of web scraping, the authors identify technical considerations of the method and provide practitioner narratives. They then describe an overview of project-oriented web scraping. Finally, they discuss implications for the concept as a sustainable approach to developing web scraping methods for TPC research.

Submental Island Flap After Prior Contralateral Neck Dissection: A Case Series and Technical Considerations

Objectives: The submental island flap is a dependable workhorse in head and neck reconstruction. However, the viability of this flap has not been established for oral cavity reconstruction when a contralateral neck dissection has already been performed in an earlier surgical setting. The aim of this study is to highlight technical considerations and outcomes of this approach with a small case series. Methods: Three cases of oral cavity reconstruction with a submental island flap elevated in the context of a prior contralateral neck dissection are presented. Results: In all cases, a doppler was used to identify the maintenance of the submental perforator in the neck opposite the previous neck dissection. In 2 cases, level IA was included within the dissection field of the previous neck dissection. Additionally, the old neck scar was included within the skin paddle of the submental island flap in 2 cases. In all cases, excellent healing of the flap was observed without partial or complete loss. Conclusions: The submental island flap appears to be a reliable reconstruction when a previous contralateral neck dissection has been performed, even when level IA was included in the prior dissection.