Arkansas State University Received NSF Research Grant
The $177,108 award supports efforts to enhance waste-to-energy systems through sewage sludge treatment.
Updated on Oct. 8, 2026 in Environmental
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Arkansas State University has been awarded a $177,108 grant from the National Science Foundation to improve anaerobic digestion of sewage sludge. Assistant professor Chiqian Zhang will lead the research, which aims to mitigate volatile sulfur compounds that hinder energy production and damage equipment.
Why it matters
By reducing volatile sulfur compounds during the digestion process, this research seeks to boost methane output and extend the lifespan of critical wastewater infrastructure. The study addresses significant chemical barriers that currently limit the efficiency and environmental sustainability of waste-to-energy systems.
The research project utilizes laboratory reactor experiments, chemical analyses, microbial studies, and predictive modeling. The team is specifically investigating an alkaline thermal pretreatment method that combines heat and calcium oxide to inhibit sulfur formation.
The players
Arkansas State University
This is a public research university located in Jonesboro, Arkansas, that serves as the site for this engineering study.
Chiqian Zhang
He is an assistant professor of civil engineering at Arkansas State University and the lead researcher for this NSF-funded project.
National Science Foundation
This is an independent federal agency that supports fundamental research and education in all the non-medical fields of science and engineering.
The details
The project, titled ERI: Alkaline Thermal Pretreatment to Improve Anaerobic Digestion of Sewage Sludge through Mitigating Volatile Sulfur Compounds: Reactor Performance, Pathways, and Mechanisms, tackles the issue of sulfur-induced corrosion and reduced methane yield. Beyond the technical outcomes, the initiative will provide research opportunities for students and build collaborative ties with local wastewater treatment facilities across Arkansas.
Timeline
The National Science Foundation awarded the grant to Arkansas State University on October 7, 2026.
The Big Picture
This research follows a pattern set by the NSF ERI program, which provides targeted support for engineering research initiatives led by early-career faculty.
Improved waste-to-energy conversion could lead to more efficient municipal infrastructure and lower operational costs for local wastewater facilities. These efficiency gains may eventually influence the long-term sustainability and environmental impact of sewage management systems in the region.
The takeaway
Advancements in pretreatment technology remain a vital focus for optimizing renewable energy recovery from waste. Implementing these chemical and microbial solutions can significantly improve the performance of existing waste management facilities.
Further reading
Learn more about local scientific advancements in the Environmental section.
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