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Research on the Removal of Ammonia-Nitrogen Pollutants via the MAP Method Based on the Box-Behnken Response Surface Methodology
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| Yunhui Zhang1, Yongtan Tao2, Yuntian Wang2, Yunjing Shi1, Ningwei Fan1, Yinghong Jian1
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| 1. Jilin Institute of Chemical Technology, School of Resource and Environmental Engineering, Jilin, Jilin, 132022; 2. Jilin Chemical Fiber Group Corporation, Water Supply and Drainage Workshop of Guoxing New Material Investment Co, Ltd, Jilin, Jilin, 132000 |
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Abstract This article employs the response surface design method to optimize the ammonia nitrogen removal efficiency using the MAP method. Significant influencing factors were identified through a PB experiment, and the center point of the BBD experiment was determined via a steepest ascent test. The BBD experiment was designed to ascertain the sequence of influence and optimal conditions for pH value, Mg:N, and P:N molar ratios on the removal of ammonia nitrogen pollutants from water. The findings revealed that the three factors affect the ammonia nitrogen removal rate in the following order: pH > Mg:N > P:N. The optimal conditions were determined as follows: pH 11.02, Mg:N molar ratio of 1.57, and P:N molar ratio of 1.41. Verification experiments confirmed that under these optimal conditions, the ammonia nitrogen removal rate can peak at 95.27%, closely matching the predicted value. This demonstrates the effectiveness of the MAP method in removing ammonia nitrogen pollutants and the high goodness of fit of the response surface regression model.
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Published: 20 December 2025
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