Abstract

Purpose: This study examined the technical basis and field applicability of an integrated microbial-chemical system for odor reduction in wastewater treatment. It focused on the functional roles of microbial agents, chemical assistance, and smart operational control in mitigating odor-generating conditions associated with wastewater and sludge handling. Research Design & Data: The study adopted a qualitative and technical analytical approach rather than a controlled experimental design. The analysis was based on project technical overview materials, product characterization data for BCP80 and STIMULUS, case-history documents including dosing schedules and field trends of H₂S and NH₄, and general scientific knowledge regarding odor formation, microbial degradation, urease inhibition, and process control. Research Results: The findings suggest that BCP80 primarily functions as a Bacillus-dominant microbial agent that may support organic matter degradation and process stabilization, whereas STIMULUS provides complementary chemical support through concentration-dependent urease inhibitory activity. Field-related materials also showed an overall decreasing trend in H₂S and NH₄ during the treatment period, indicating possible practical relevance under site conditions. However, these findings were not supported by controlled replication or statistical validation. Conclusion: The proposed integrated microbial-chemical system appears to be a technically plausible and potentially field-applicable approach for odor reduction in wastewater treatment. Nevertheless, its efficacy should be confirmed through future pilot-scale or full-scale studies with controlled experimental validation.