Programs and Communities
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- Creators: Swette Center for Environmental Biotechnology
- Creators: School of Sustainability
For decades, understanding the complexity of behaviors, motivations, and values has interested researchers across various disciplines. So much so that there are numerous terms, frameworks, theories, and studies devoted to understanding these complexities and how they interact and evolve into actions. However, little research has examined how employee behaviors translate into the work environment, particularly regarding perceived organizational success. This study advances research by quantitatively assessing how a greater number of individual employees’ pro-environmental behaviors are related to the perceived success of environmentally sustainable workplace activities. We have concluded that the more pro-environmental behaviors an employee embodies, the more positively they perceive the success of their local government's sustainable purchasing policy. Additionally, other factors matter, including organizational behaviors, like training, innovation, and reduction of red tape.
BACKGROUND: The City of Phoenix initiated the HeatReady program in 2018 to prepare for extreme heat, as there was no official tool, framework, or mechanism at the city level to manage extreme heat. The current landscape of heat safety culture in schools, which are critical community hubs, has received less illumination. HeatReady Schools—a critical component of a HeatReady City—are those that are increasingly able to identify, prepare for, mitigate, track, and respond to the negative impacts of schoolgrounds heat. However, minimal attention has been given to formalize heat preparedness in schools to mitigate high temperatures and health concerns in schoolchildren, a heat-vulnerable population. This study set out to understand heat perceptions, (re)actions, and recommendations of key stakeholders and to identify critical themes around heat readiness. METHODS: An exploratory sequential mixed-methods case study approach was used. These methods focused on acquiring new insight on heat perceptions at elementary schools through semi-structured interviews using thematic analysis and the Delphi panel. Participants included public health professionals and school community members at two elementary schools—one public charter, one public—in South Phoenix, Arizona, a region that has been burdened historically with inequitable distribution of heat resources due to environmental racism and injustices. RESULTS: Findings demonstrated that 1) current heat safety resources are available but not fully utilized within the school sites, 2) expert opinions support that extreme heat readiness plans must account for site-specific needs, particularly education as a first step, and 3) students are negatively impacted by the effects of extreme heat, whether direct or indirect, both inside and outside the classroom. CONCLUSIONS: From key informant interviews and a Delphi panel, a list of 30 final recommendations were developed as important actions to be taken to become “HeatReady.” Future work will apply these recommendations in a HeatReady School Growth Tool that schools can tailor be to their individual needs to improve heat safety and protection measures at schools.
expenditure, and environmental risk. Surfactant treatment to disrupt Scenedesmus biomass was evaluated
as a means to make solvent extraction more efficient. Surfactant treatment increased the recovery of fatty
acid methyl ester (FAME) by as much as 16-fold vs. untreated biomass using isopropanol extraction, and
nearly 100% FAME recovery was possible without any Folch solvent, which is toxic and expensive. Surfactant
treatment caused cell disruption and morphological changes to the cell membrane, as documented by
transmission electron microscopy and flow cytometry. Surfactant treatment made it possible to extract wet
biomass at room temperature, which avoids the expense and energy cost associated with heating
and drying of biomass during the extraction process. The best FAME recovery was obtained from highlipid
biomass treated with Myristyltrimethylammonium bromide (MTAB)- and 3-(decyldimethylammonio)-
propanesulfonate inner salt (3_DAPS)-surfactants using a mixed solvent (hexane : isopropanol = 1 : 1, v/v)
vortexed for just 1 min; this was as much as 160-fold higher than untreated biomass. The critical micelle
concentration of the surfactants played a major role in dictating extraction performance, but the growth
stage of the biomass had an even larger impact on how well the surfactants disrupted the cells and
improved lipid extraction. Surfactant treatment had minimal impact on extracted-FAME profiles and,
consequently, fuel-feedstock quality. This work shows that surfactant treatment is a promising strategy for
more efficient, sustainable, and economical extraction of fuel feedstock from microalgae.
The Combined Activated Sludge-Anaerobic Digestion Model (CASADM) quantifies the effects of recycling anaerobic-digester (AD) sludge on the performance of a hybrid activated sludge (AS)-AD system. The model includes nitrification, denitrification, hydrolysis, fermentation, methanogenesis, and production/utilization of soluble microbial products and extracellular polymeric substances (EPS). A CASADM example shows that, while effluent COD and N are not changed much by hybrid operation, the hybrid system gives increased methane production in the AD and decreased sludge wasting, both caused mainly by a negative actual solids retention time in the hybrid AD. Increased retention of biomass and EPS allows for more hydrolysis and conversion to methane in the hybrid AD. However, fermenters and methanogens survive in the AS, allowing significant methane production in the settler and thickener of both systems, and AD sludge recycle makes methane formation greater in the hybrid system.
ASU’s waste diversion goal is 90% by the fiscal year 2025 and will require collaboration across many departments and programs to be successful. Reducing plastic use, especially single-use plastic, is critical in reaching 90% waste diversion in the supply chain. To reduce supply chain single-use plastics, ASU will need the cooperation of suppliers on efforts like piloting plastic free packaging programs, packaging take back programs, alternative packaging opportunities, or promoting alternative products that contain little-to-no single-use plastic. Creating a proposed approach through identifying strategic external partners, a high-level approach to implementation, and obstacles will impact how future goals and policies are set. Determining impact and added value of the project will help cultivate support from leadership, internal stakeholders, and suppliers. The project focus will include multiple deliverables, but the final output will be a timeline that maps out what plastic streams to eliminate and when to help ASU reach their waste diversion goals. It begins with “low-hanging fruit” like straws and plastic bags and ends with a university free from all non-essential single-use plastic.
ASU’s waste diversion goal is 90% by the fiscal year 2025 and will require collaboration across many departments and programs to be successful. Reducing plastic use, especially single-use plastic, is critical in reaching 90% waste diversion in the supply chain. To reduce supply chain single-use plastics, ASU will need the cooperation of suppliers on efforts like piloting plastic free packaging programs, packaging take back programs, alternative packaging opportunities, or promoting alternative products that contain little-to-no single-use plastic. Creating a proposed approach through identifying strategic external partners, a high-level approach to implementation, and obstacles will impact how future goals and policies are set. Determining impact and added value of the project will help cultivate support from leadership, internal stakeholders, and suppliers. The project focus will include multiple deliverables, but the final output will be a timeline that maps out what plastic streams to eliminate and when to help ASU reach their waste diversion goals. It begins with “low-hanging fruit” like straws and plastic bags and ends with a university free from all non-essential single-use plastic.
ASU’s waste diversion goal is 90% by the fiscal year 2025 and will require collaboration across many departments and programs to be successful. Reducing plastic use, especially single-use plastic, is critical in reaching 90% waste diversion in the supply chain. To reduce supply chain single-use plastics, ASU will need the cooperation of suppliers on efforts like piloting plastic free packaging programs, packaging take back programs, alternative packaging opportunities, or promoting alternative products that contain little-to-no single-use plastic. Creating a proposed approach through identifying strategic external partners, a high-level approach to implementation, and obstacles will impact how future goals and policies are set. Determining impact and added value of the project will help cultivate support from leadership, internal stakeholders, and suppliers. The project focus will include multiple deliverables, but the final output will be a timeline that maps out what plastic streams to eliminate and when to help ASU reach their waste diversion goals. It begins with “low-hanging fruit” like straws and plastic bags and ends with a university free from all non-essential single-use plastic.