Innovation in the Application of Bacillus subtilis for Water Pollution Reduction: A Pathway Toward Sustainable Environmental Management at the Community Level

Abstract

This experimental research studied the efficacy of Bacillus subtilis in reducing water pollution and improving water quality for community environmental health. The study utilized an experimental design, comparing a control group against an experimental group treated with Bacillus subtilis in wastewater samples. Ammonia and NH₃ levels were measured at specified intervals. The results showed that Bacillus subtilis effectively reduced water pollution. Notably, the group supplemented with brown sugar as a culture medium achieved a 100% ammonia reduction, dropping from 0.8 mg/L to 0 mg/L within 2–3 days. The bacteria also prevented ammonia levels from increasing, underscoring their efficiency in decomposing waste and controlling pollutants. Post-treatment water showed distinct improvements, with increased clarity and reduced odor, making it suitable for community agriculture. Analysis indicated that utilizing Bacillus subtilis is a low-cost, safe, and environmentally friendly approach, practical for community-level application. By mitigating water pollution health risks, this innovative application serves as an effective wastewater treatment alternative and a sustainable guideline for community environmental management.