Gaseous Emissions from Wastewater Facilities

Area of Science:

• Environmental Science
• Environmental Engineering
• Public Health

Background:

• Wastewater facilities are significant sources of gaseous emissions, impacting air quality and human health.
• Understanding these emissions is crucial for effective environmental management and public health protection.
• Previous literature reviews have focused on specific aspects, necessitating a comprehensive overview of recent findings.

Purpose of the Study:

• To systematically review and synthesize the scientific literature published in 2015 concerning gaseous emissions from wastewater facilities.
• To provide a consolidated overview of current knowledge on odorant and greenhouse gas (GHG) emissions, control strategies, and impact assessments.
• To identify research gaps and future directions in the field of wastewater emissions.

Main Methods:

• Comprehensive literature search of scientific databases for publications in 2015 related to wastewater gaseous emissions.
• 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.
• Synthesis and critical analysis of findings from selected studies.

Main Results:

• The review covers a range of topics including odorant and GHG emissions from wastewater treatment plants (WWTPs) and collection systems.
• Various physicochemical and biological methods for odor and emissions control were discussed, highlighting their efficacy and limitations.
• Advancements in odor characterization, monitoring techniques, and odor impact/risk assessment methodologies were presented.

Conclusions:

• The literature from 2015 indicates a growing focus on quantifying and mitigating gaseous emissions from wastewater infrastructure.
• Effective management requires a multi-faceted approach, integrating technological solutions with robust monitoring and risk assessment frameworks.
• Further research is needed to optimize control technologies and understand the long-term impacts of wastewater emissions on environmental and public health.