Reducing odor emissions from feces aerobic composting: additives.

Area of Science:

• Environmental Science
• Waste Management
• Soil Science

Background:

• Aerobic composting effectively treats feces, converting waste into valuable resources.
• Odor emissions (ammonia, volatile sulfur compounds) from feces compost cause environmental issues and nutrient loss.
• Improving compost quality necessitates effective odor control strategies.

Purpose of the Study:

• To review recent advancements in odor mitigation for feces composting.
• To clarify odor generation mechanisms and element transformation pathways.
• To evaluate various odor reduction strategies and their limitations.

Main Methods:

• Literature review of recent progress in feces composting odor control.
• Analysis of odor generation mechanisms and element transfer.
• Comparison of different odor mitigation strategies, focusing on additives.

Main Results:

• Several effective odor-reducing additives for feces composting have been identified.
• The mechanisms and characteristics of various additives differ significantly.
• Adsorbent and biological additives show promise but require further research.

Conclusions:

• Choosing the appropriate odor mitigation method depends on specific composting plant conditions.
• Further research is needed to enhance odor mitigation and element retention in feces composting.
• Adsorbent and biological additives offer significant potential for future applications.