Gaseous emissions from wastewater facilities.

Area of Science:

• Environmental Engineering
• Wastewater Treatment Technologies
• Air Quality Management

Background:

• Gaseous emissions from wastewater facilities are a significant environmental concern.
• Understanding these emissions is crucial for effective environmental management and public health.
• Previous literature reviews have not comprehensively covered the 2019 publications in this field.

Purpose of the Study:

• To review and synthesize the scientific literature published in 2019 concerning gaseous emissions from wastewater facilities.
• To categorize and analyze research on odorant and greenhouse gas (GHG) emissions, control methods, and impact assessments.
• To provide a valuable resource for practitioners, researchers, and designers in the wastewater sector.

Main Methods:

• Comprehensive literature search of publications from 2019.
• Categorization of reviewed articles into key thematic areas: odorant emissions, GHG emissions, collection system emissions, control methods (physicochemical and biological), characterization and monitoring, and impact/risk assessments.
• Synthesis of findings within each thematic area.

Main Results:

• The review covers a broad spectrum of gaseous emissions research from 2019, including specific focus areas like Water Resource Recovery Facilities (WRRFs).
• Key findings are presented across sections on odorant and GHG emissions, collection system emissions, and various control strategies.
• The literature highlights advancements in odor/GHG characterization, monitoring techniques, and odor impact/risk assessments.

Conclusions:

• The 2019 literature provides valuable insights into managing gaseous emissions from wastewater infrastructure.
• This review serves as a critical reference for identifying knowledge gaps and guiding future research and development.
• Findings can inform the design and operation of wastewater facilities for improved environmental performance.