Bioaugmentation in Leachate Treatment: Enhancing Ammonia Nitrogen Elimination in US Landfills

Purpose: This research seeks to assess the quantitative effects of implementing bioaugmentation solutions within existing landfill leachate management systems. The study involves the analysis of different sites to gauge the influence on leachate composition, considering various industry management practices such as lagoons, tanks, sewer discharge, or off-site trucking. The primary objective is to examine changes in microbial communities within the leachate, specifically focusing on their impact on ammonia nitrogen elimination rates. The ultimate goal is to achieve lower levels of ammonia nitrogen before the discharge of leachate to publicly owned treatment works (POTW).Methodology: The research employs a comprehensive methodology that involves the examination of diverse landfill sites utilizing various industry management practices for leachate treatment. The analysis includes assessing leachate composition and the study evaluates effectiveness of bioaugmentation in enhancing ammonia elimination rates, considering different leachate treatment approaches and operating conditions. This involves a systematic comparison of outcomes across sites and management practices.Findings: The findings of this study indicate that bioaugmentation is an effective strategy for accelerating ammonia elimination rates in landfill leachate. The analysis reveals notable improvements in microbial communities, leading to reduced levels of ammonia nitrogen in the leachate prior to its discharge to POTW. The study highlights the versatility of bioaugmentation across different industry management practices, showcasing its potential benefits under varying operating conditions and treatment setups.Unique contributor to theory, policy and practice: Based on the study's outcomes, it is recommended that landfill operators and leachate management practitioners consider implementing bioaugmentation solutions to expedite ammonia elimination rates. The findings suggest that bioaugmentation is a cost-effective and fast-to-deploy solution that requires negligible capital expenditure. This approach has the potential to generate significant savings, especially in the face of a more stringent regulatory environment. The recommendations emphasize the adaptability and efficiency of bioaugmentation across a broad range of operating conditions within existing landfill leachate management infrastructure.