Gaseous Emissions from Wastewater Facilities.

Area of Science:

• Environmental Science
• Environmental Engineering
• Public Health

Background:

• Wastewater treatment plants (WWTPs) and collection systems generate significant gaseous emissions.
• These emissions include odorants and greenhouse gases (GHG), impacting local environments and global climate.
• Understanding and controlling these emissions is crucial for sustainable wastewater management.

Purpose of the Study:

• To review and synthesize the scientific literature published in 2016 concerning gaseous emissions from wastewater facilities.
• To provide a comprehensive overview of current knowledge on odorant and GHG emissions, control methods, and impact assessments.

Main Methods:

• Systematic literature review of publications from 2016.
• Categorization of reviewed literature into key thematic areas: odorant emissions, GHG emissions, collection system emissions, control methods (physicochemical and biological), characterization/monitoring, and impact/risk assessment.

Main Results:

• Literature covers diverse aspects of wastewater gaseous emissions, including sources, measurement techniques, and mitigation strategies.
• Significant focus on odorant emissions from wastewater treatment plants (WWTPs) and associated control technologies.
• Greenhouse gas (GHG) emissions from WWTPs and collection systems are also a key research area, alongside methods for odor characterization and risk assessment.

Conclusions:

• The 2016 literature highlights the complexity of gaseous emissions from wastewater infrastructure.
• A range of control and monitoring strategies are available and under development.
• Further research is needed to optimize emission reduction and assess environmental and health impacts effectively.